<?xml version="1.0" encoding="US-ASCII"?>
<!--XBRL Document Created with WebFilings-->
<!-- -->
<linkbase xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" xmlns="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <roleRef roleURI="http://www.camdenliving.com/role/CommitmentsAndContingencies" xlink:href="cpt-20130930.xsd#CommitmentsAndContingencies" xlink:type="simple" />
  <roleRef roleURI="http://www.camdenliving.com/role/CommitmentsAndContingenciesDetails" xlink:href="cpt-20130930.xsd#CommitmentsAndContingenciesDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.camdenliving.com/role/CommonShares" xlink:href="cpt-20130930.xsd#CommonShares" xlink:type="simple" />
  <roleRef roleURI="http://www.camdenliving.com/role/CommonSharesActivityUnderAtTheMarketShareOfferingProgramDetails" xlink:href="cpt-20130930.xsd#CommonSharesActivityUnderAtTheMarketShareOfferingProgramDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.camdenliving.com/role/CommonSharesNarrativeDetails" xlink:href="cpt-20130930.xsd#CommonSharesNarrativeDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.camdenliving.com/role/CommonSharesTables" xlink:href="cpt-20130930.xsd#CommonSharesTables" xlink:type="simple" />
  <roleRef roleURI="http://www.camdenliving.com/role/CondensedConsolidatedBalanceSheets" xlink:href="cpt-20130930.xsd#CondensedConsolidatedBalanceSheets" xlink:type="simple" />
  <roleRef roleURI="http://www.camdenliving.com/role/CondensedConsolidatedBalanceSheetsParenthetical" xlink:href="cpt-20130930.xsd#CondensedConsolidatedBalanceSheetsParenthetical" xlink:type="simple" />
  <roleRef roleURI="http://www.camdenliving.com/role/CondensedConsolidatedStatementsOfCashFlows" xlink:href="cpt-20130930.xsd#CondensedConsolidatedStatementsOfCashFlows" xlink:type="simple" />
  <roleRef roleURI="http://www.camdenliving.com/role/CondensedConsolidatedStatementsOfEquityAndPerpetualPreferredUnits" xlink:href="cpt-20130930.xsd#CondensedConsolidatedStatementsOfEquityAndPerpetualPreferredUnits" xlink:type="simple" />
  <roleRef roleURI="http://www.camdenliving.com/role/CondensedConsolidatedStatementsOfIncomeAndComprehensiveIncome" xlink:href="cpt-20130930.xsd#CondensedConsolidatedStatementsOfIncomeAndComprehensiveIncome" xlink:type="simple" />
  <roleRef roleURI="http://www.camdenliving.com/role/DescriptionOfBusiness" xlink:href="cpt-20130930.xsd#DescriptionOfBusiness" xlink:type="simple" />
  <roleRef roleURI="http://www.camdenliving.com/role/DescriptionOfBusinessDetails" xlink:href="cpt-20130930.xsd#DescriptionOfBusinessDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.camdenliving.com/role/DocumentAndEntityInformation" xlink:href="cpt-20130930.xsd#DocumentAndEntityInformation" xlink:type="simple" />
  <roleRef roleURI="http://www.camdenliving.com/role/FairValueDisclosures" xlink:href="cpt-20130930.xsd#FairValueDisclosures" xlink:type="simple" />
  <roleRef roleURI="http://www.camdenliving.com/role/FairValueDisclosuresFairValueOfNotesReceivableAndNotesPayableDetails" xlink:href="cpt-20130930.xsd#FairValueDisclosuresFairValueOfNotesReceivableAndNotesPayableDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.camdenliving.com/role/FairValueDisclosuresFinancialAssetsAndLiabilitiesMeasuredAtFairValueDetails" xlink:href="cpt-20130930.xsd#FairValueDisclosuresFinancialAssetsAndLiabilitiesMeasuredAtFairValueDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.camdenliving.com/role/FairValueDisclosuresTables" xlink:href="cpt-20130930.xsd#FairValueDisclosuresTables" xlink:type="simple" />
  <roleRef roleURI="http://www.camdenliving.com/role/IncomeTaxes" xlink:href="cpt-20130930.xsd#IncomeTaxes" xlink:type="simple" />
  <roleRef roleURI="http://www.camdenliving.com/role/IncomeTaxesDetails" xlink:href="cpt-20130930.xsd#IncomeTaxesDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.camdenliving.com/role/InvestmentsInJointVentures" xlink:href="cpt-20130930.xsd#InvestmentsInJointVentures" xlink:type="simple" />
  <roleRef roleURI="http://www.camdenliving.com/role/InvestmentsInJointVenturesAggregateBalanceSheetAndStatementOfIncomeDataForUnconsolidatedJointVenturesDetails" xlink:href="cpt-20130930.xsd#InvestmentsInJointVenturesAggregateBalanceSheetAndStatementOfIncomeDataForUnconsolidatedJointVenturesDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.camdenliving.com/role/InvestmentsInJointVenturesNarrativeDetails" xlink:href="cpt-20130930.xsd#InvestmentsInJointVenturesNarrativeDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.camdenliving.com/role/InvestmentsInJointVenturesTables" xlink:href="cpt-20130930.xsd#InvestmentsInJointVenturesTables" xlink:type="simple" />
  <roleRef roleURI="http://www.camdenliving.com/role/NetChangeInOperatingAccounts" xlink:href="cpt-20130930.xsd#NetChangeInOperatingAccounts" xlink:type="simple" />
  <roleRef roleURI="http://www.camdenliving.com/role/NetChangeInOperatingAccountsEffectOfChangesInOperatingAccountsOnCashFlowsFromOperatingActivitiesDetails" xlink:href="cpt-20130930.xsd#NetChangeInOperatingAccountsEffectOfChangesInOperatingAccountsOnCashFlowsFromOperatingActivitiesDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.camdenliving.com/role/NetChangeInOperatingAccountsTables" xlink:href="cpt-20130930.xsd#NetChangeInOperatingAccountsTables" xlink:type="simple" />
  <roleRef roleURI="http://www.camdenliving.com/role/NoncontrollingInterests" xlink:href="cpt-20130930.xsd#NoncontrollingInterests" xlink:type="simple" />
  <roleRef roleURI="http://www.camdenliving.com/role/NoncontrollingInterestsEffectOfChangesInOwnershipInterestInSubsidiariesDetails" xlink:href="cpt-20130930.xsd#NoncontrollingInterestsEffectOfChangesInOwnershipInterestInSubsidiariesDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.camdenliving.com/role/NoncontrollingInterestsTables" xlink:href="cpt-20130930.xsd#NoncontrollingInterestsTables" xlink:type="simple" />
  <roleRef roleURI="http://www.camdenliving.com/role/NotesPayable" xlink:href="cpt-20130930.xsd#NotesPayable" xlink:type="simple" />
  <roleRef roleURI="http://www.camdenliving.com/role/NotesPayableNarrativeDetails" xlink:href="cpt-20130930.xsd#NotesPayableNarrativeDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.camdenliving.com/role/NotesPayableScheduledRepaymentsOnOutstandingDebtDetails" xlink:href="cpt-20130930.xsd#NotesPayableScheduledRepaymentsOnOutstandingDebtDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.camdenliving.com/role/NotesPayableSummaryOfIndebtednessDetails" xlink:href="cpt-20130930.xsd#NotesPayableSummaryOfIndebtednessDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.camdenliving.com/role/NotesPayableTables" xlink:href="cpt-20130930.xsd#NotesPayableTables" xlink:type="simple" />
  <roleRef roleURI="http://www.camdenliving.com/role/PerShareData" xlink:href="cpt-20130930.xsd#PerShareData" xlink:type="simple" />
  <roleRef roleURI="http://www.camdenliving.com/role/PerShareDataCalculationOfBasicAndDilutedEarningsPerShareDetails" xlink:href="cpt-20130930.xsd#PerShareDataCalculationOfBasicAndDilutedEarningsPerShareDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.camdenliving.com/role/PerShareDataTables" xlink:href="cpt-20130930.xsd#PerShareDataTables" xlink:type="simple" />
  <roleRef roleURI="http://www.camdenliving.com/role/PropertyAcquisitionsDiscontinuedOperationsAndAssetsHeldForSale" xlink:href="cpt-20130930.xsd#PropertyAcquisitionsDiscontinuedOperationsAndAssetsHeldForSale" xlink:type="simple" />
  <roleRef roleURI="http://www.camdenliving.com/role/PropertyAcquisitionsDiscontinuedOperationsAndAssetsHeldForSaleNarrativeDetails" xlink:href="cpt-20130930.xsd#PropertyAcquisitionsDiscontinuedOperationsAndAssetsHeldForSaleNarrativeDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.camdenliving.com/role/PropertyAcquisitionsDiscontinuedOperationsAndAssetsHeldForSalePropertyAcquisitionsDiscontinuedOperationsAndAssetsHeldForSaleFairValueOfAssetsAcquiredDetails" xlink:href="cpt-20130930.xsd#PropertyAcquisitionsDiscontinuedOperationsAndAssetsHeldForSalePropertyAcquisitionsDiscontinuedOperationsAndAssetsHeldForSaleFairValueOfAssetsAcquiredDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.camdenliving.com/role/PropertyAcquisitionsDiscontinuedOperationsAndAssetsHeldForSaleSummaryOfIncomeFromDiscontinuedOperationsDetails" xlink:href="cpt-20130930.xsd#PropertyAcquisitionsDiscontinuedOperationsAndAssetsHeldForSaleSummaryOfIncomeFromDiscontinuedOperationsDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.camdenliving.com/role/PropertyAcquisitionsDiscontinuedOperationsAndAssetsHeldForSaleTables" xlink:href="cpt-20130930.xsd#PropertyAcquisitionsDiscontinuedOperationsAndAssetsHeldForSaleTables" xlink:type="simple" />
  <roleRef roleURI="http://www.camdenliving.com/role/ShareBasedCompensationAndNonQualifiedDeferredCompensationPlan" xlink:href="cpt-20130930.xsd#ShareBasedCompensationAndNonQualifiedDeferredCompensationPlan" xlink:type="simple" />
  <roleRef roleURI="http://www.camdenliving.com/role/ShareBasedCompensationAndNonQualifiedDeferredCompensationPlanNarrativeDetails" xlink:href="cpt-20130930.xsd#ShareBasedCompensationAndNonQualifiedDeferredCompensationPlanNarrativeDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.camdenliving.com/role/ShareBasedCompensationAndNonQualifiedDeferredCompensationPlanShareBasedCompensationAndNonQualifiedDeferredCompensationPlanNqdcDiversifiedShareAwardsRollforwardDetails" xlink:href="cpt-20130930.xsd#ShareBasedCompensationAndNonQualifiedDeferredCompensationPlanShareBasedCompensationAndNonQualifiedDeferredCompensationPlanNqdcDiversifiedShareAwardsRollforwardDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.camdenliving.com/role/ShareBasedCompensationAndNonQualifiedDeferredCompensationPlanSummaryOfShareIncentivePlansDetails" xlink:href="cpt-20130930.xsd#ShareBasedCompensationAndNonQualifiedDeferredCompensationPlanSummaryOfShareIncentivePlansDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.camdenliving.com/role/ShareBasedCompensationAndNonQualifiedDeferredCompensationPlanSummaryOfShareOptionsOutstandingAndExercisableDetails" xlink:href="cpt-20130930.xsd#ShareBasedCompensationAndNonQualifiedDeferredCompensationPlanSummaryOfShareOptionsOutstandingAndExercisableDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.camdenliving.com/role/ShareBasedCompensationAndNonQualifiedDeferredCompensationPlanTables" xlink:href="cpt-20130930.xsd#ShareBasedCompensationAndNonQualifiedDeferredCompensationPlanTables" xlink:type="simple" />
  <roleRef roleURI="http://www.camdenliving.com/role/SummaryOfSignificantAccountingPolicies" xlink:href="cpt-20130930.xsd#SummaryOfSignificantAccountingPolicies" xlink:type="simple" />
  <roleRef roleURI="http://www.camdenliving.com/role/SummaryOfSignificantAccountingPoliciesExpectedUsefulLivesOfDepreciablePropertyDetails" xlink:href="cpt-20130930.xsd#SummaryOfSignificantAccountingPoliciesExpectedUsefulLivesOfDepreciablePropertyDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.camdenliving.com/role/SummaryOfSignificantAccountingPoliciesNarrativeDetails" xlink:href="cpt-20130930.xsd#SummaryOfSignificantAccountingPoliciesNarrativeDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.camdenliving.com/role/SummaryOfSignificantAccountingPoliciesPolicies" xlink:href="cpt-20130930.xsd#SummaryOfSignificantAccountingPoliciesPolicies" xlink:type="simple" />
  <roleRef roleURI="http://www.camdenliving.com/role/SummaryOfSignificantAccountingPoliciesSummaryOfSignificantAccountingPoliciesRevenuesFromBelowMarketLeasesAndExpensesFromInPlaceLeasesDetails" xlink:href="cpt-20130930.xsd#SummaryOfSignificantAccountingPoliciesSummaryOfSignificantAccountingPoliciesRevenuesFromBelowMarketLeasesAndExpensesFromInPlaceLeasesDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.camdenliving.com/role/SummaryOfSignificantAccountingPoliciesSummaryOfSignificantAccountingPoliciesValueOfLeasesAcquiredDetails" xlink:href="cpt-20130930.xsd#SummaryOfSignificantAccountingPoliciesSummaryOfSignificantAccountingPoliciesValueOfLeasesAcquiredDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.camdenliving.com/role/SummaryOfSignificantAccountingPoliciesTables" xlink:href="cpt-20130930.xsd#SummaryOfSignificantAccountingPoliciesTables" xlink:type="simple" />
  <calculationLink xlink:role="http://www.camdenliving.com/role/CommitmentsAndContingencies" xlink:type="extended" />
  <calculationLink xlink:role="http://www.camdenliving.com/role/CommitmentsAndContingenciesDetails" xlink:type="extended" />
  <calculationLink xlink:role="http://www.camdenliving.com/role/CommonShares" xlink:type="extended" />
  <calculationLink xlink:role="http://www.camdenliving.com/role/CommonSharesActivityUnderAtTheMarketShareOfferingProgramDetails" xlink:type="extended" />
  <calculationLink xlink:role="http://www.camdenliving.com/role/CommonSharesNarrativeDetails" xlink:type="extended" />
  <calculationLink xlink:role="http://www.camdenliving.com/role/CommonSharesTables" xlink:type="extended" />
  <calculationLink xlink:role="http://www.camdenliving.com/role/CondensedConsolidatedBalanceSheets" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquity" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity_6e1ed1d0-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_Liabilities" xlink:label="loc_us-gaap_Liabilities_6e59ec02-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_6e1ed1d0-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_Liabilities_6e59ec02-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="cpt-20130930.xsd#cpt_DistributionsPayable" xlink:label="loc_cpt_DistributionsPayable_d644b6e7-ca63-1cf2-19f9-9893c25f4ce7" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_6e59ec02-9656-11e2-88e7-12313d1a0274" xlink:to="loc_cpt_DistributionsPayable_d644b6e7-ca63-1cf2-19f9-9893c25f4ce7" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent" xlink:label="loc_us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent_055e365e-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_6e59ec02-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent_055e365e-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_AccrualForTaxesOtherThanIncomeTaxesCurrentAndNoncurrent" xlink:label="loc_us-gaap_AccrualForTaxesOtherThanIncomeTaxesCurrentAndNoncurrent_05e89c36-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_6e59ec02-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_AccrualForTaxesOtherThanIncomeTaxesCurrentAndNoncurrent_05e89c36-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_UnsecuredDebt" xlink:label="loc_us-gaap_UnsecuredDebt_b35d9d76-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_6e59ec02-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_UnsecuredDebt_b35d9d76-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_SecuredDebt" xlink:label="loc_us-gaap_SecuredDebt_a9f78ad0-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="5" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_6e59ec02-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_SecuredDebt_a9f78ad0-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_OtherLiabilities" xlink:label="loc_us-gaap_OtherLiabilities_8550ad24-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="6" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_6e59ec02-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_OtherLiabilities_8550ad24-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_CommitmentsAndContingencies" xlink:label="loc_us-gaap_CommitmentsAndContingencies_1e12e4ba-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_6e1ed1d0-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_CommitmentsAndContingencies_1e12e4ba-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_adca42f6-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_6e1ed1d0-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_adca42f6-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StockholdersEquity" xlink:label="loc_us-gaap_StockholdersEquity_adc32df4-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_adca42f6-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_StockholdersEquity_adc32df4-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="cpt-20130930.xsd#cpt_CommonStocksValueOutstanding" xlink:label="loc_cpt_CommonStocksValueOutstanding_1166ec84-6237-fef8-37f8-9893b4b3a953" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_adc32df4-9656-11e2-88e7-12313d1a0274" xlink:to="loc_cpt_CommonStocksValueOutstanding_1166ec84-6237-fef8-37f8-9893b4b3a953" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_AccumulatedDistributionsInExcessOfNetIncome" xlink:label="loc_us-gaap_AccumulatedDistributionsInExcessOfNetIncome_064323e0-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_adc32df4-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_AccumulatedDistributionsInExcessOfNetIncome_064323e0-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_AdditionalPaidInCapitalCommonStock" xlink:label="loc_us-gaap_AdditionalPaidInCapitalCommonStock_066609aa-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_adc32df4-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_AdditionalPaidInCapitalCommonStock_066609aa-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_TreasuryStockValue" xlink:label="loc_us-gaap_TreasuryStockValue_b2297f42-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="4" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_adc32df4-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_TreasuryStockValue_b2297f42-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_062fd1c8-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="5" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_adc32df4-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_062fd1c8-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_MinorityInterest" xlink:label="loc_us-gaap_MinorityInterest_7a4f00ec-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_adca42f6-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_MinorityInterest_7a4f00ec-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_TemporaryEquityRedemptionValue" xlink:label="loc_us-gaap_TemporaryEquityRedemptionValue_b0529096-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_6e1ed1d0-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_TemporaryEquityRedemptionValue_b0529096-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_Assets" xlink:label="loc_us-gaap_Assets_0ce13e30-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <loc xlink:href="cpt-20130930.xsd#cpt_RealEstateAssetsTotal" xlink:label="loc_cpt_RealEstateAssetsTotal_c1bf286e-7da6-9a6a-2884-9893b4b3cd75" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_0ce13e30-9656-11e2-88e7-12313d1a0274" xlink:to="loc_cpt_RealEstateAssetsTotal_c1bf286e-7da6-9a6a-2884-9893b4b3cd75" xlink:type="arc" />
    <loc xlink:href="cpt-20130930.xsd#cpt_NetOperatingRealEstateAssets" xlink:label="loc_cpt_NetOperatingRealEstateAssets_7afa8550-4c89-c4fb-d9ad-9893b2904ed3" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_cpt_RealEstateAssetsTotal_c1bf286e-7da6-9a6a-2884-9893b4b3cd75" xlink:to="loc_cpt_NetOperatingRealEstateAssets_7afa8550-4c89-c4fb-d9ad-9893b2904ed3" xlink:type="arc" />
    <loc xlink:href="cpt-20130930.xsd#cpt_RealEstateAssetsAtCostTotal" xlink:label="loc_cpt_RealEstateAssetsAtCostTotal_4c6abf99-682b-7bd9-d566-9893c25f408a" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_cpt_NetOperatingRealEstateAssets_7afa8550-4c89-c4fb-d9ad-9893b2904ed3" xlink:to="loc_cpt_RealEstateAssetsAtCostTotal_4c6abf99-682b-7bd9-d566-9893c25f408a" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_Land" xlink:label="loc_us-gaap_Land_6b895eae-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_cpt_RealEstateAssetsAtCostTotal_4c6abf99-682b-7bd9-d566-9893c25f408a" xlink:to="loc_us-gaap_Land_6b895eae-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_InvestmentBuildingAndBuildingImprovements" xlink:label="loc_us-gaap_InvestmentBuildingAndBuildingImprovements_6a1b0cfc-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_cpt_RealEstateAssetsAtCostTotal_4c6abf99-682b-7bd9-d566-9893c25f408a" xlink:to="loc_us-gaap_InvestmentBuildingAndBuildingImprovements_6a1b0cfc-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RealEstateInvestmentPropertyAccumulatedDepreciation" xlink:label="loc_us-gaap_RealEstateInvestmentPropertyAccumulatedDepreciation_969a3e10-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_cpt_NetOperatingRealEstateAssets_7afa8550-4c89-c4fb-d9ad-9893b2904ed3" xlink:to="loc_us-gaap_RealEstateInvestmentPropertyAccumulatedDepreciation_969a3e10-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="cpt-20130930.xsd#cpt_PropertiesUnderDevelopmentIncludingLand" xlink:label="loc_cpt_PropertiesUnderDevelopmentIncludingLand_67c21841-ccfe-ab94-5125-9893bcb29952" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_cpt_RealEstateAssetsTotal_c1bf286e-7da6-9a6a-2884-9893b4b3cd75" xlink:to="loc_cpt_PropertiesUnderDevelopmentIncludingLand_67c21841-ccfe-ab94-5125-9893bcb29952" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures" xlink:label="loc_us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures_6ae6abb4-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_cpt_RealEstateAssetsTotal_c1bf286e-7da6-9a6a-2884-9893b4b3cd75" xlink:to="loc_us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures_6ae6abb4-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RealEstateHeldforsale" xlink:label="loc_us-gaap_RealEstateHeldforsale_96dc800e-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_cpt_RealEstateAssetsTotal_c1bf286e-7da6-9a6a-2884-9893b4b3cd75" xlink:to="loc_us-gaap_RealEstateHeldforsale_96dc800e-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_AccountsReceivableRelatedParties" xlink:label="loc_us-gaap_AccountsReceivableRelatedParties_05223d3e-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_0ce13e30-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_AccountsReceivableRelatedParties_05223d3e-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_OtherAssets" xlink:label="loc_us-gaap_OtherAssets_839ac38e-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_0ce13e30-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_OtherAssets_839ac38e-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_18320242-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_0ce13e30-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_18320242-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RestrictedCashAndCashEquivalents" xlink:label="loc_us-gaap_RestrictedCashAndCashEquivalents_a1a8c880-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="5" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_0ce13e30-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_RestrictedCashAndCashEquivalents_a1a8c880-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
  </calculationLink>
  <calculationLink xlink:role="http://www.camdenliving.com/role/CondensedConsolidatedBalanceSheetsParenthetical" xlink:type="extended" />
  <calculationLink xlink:role="http://www.camdenliving.com/role/CondensedConsolidatedStatementsOfCashFlows" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:label="loc_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_181e990a-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_7cb5e5da-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_181e990a-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_7cb5e5da-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ProfitLoss" xlink:label="loc_us-gaap_ProfitLoss_93e5ee3a-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_7cb5e5da-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_ProfitLoss_93e5ee3a-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DepreciationDepletionAndAmortization" xlink:label="loc_us-gaap_DepreciationDepletionAndAmortization_328d60be-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_7cb5e5da-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_DepreciationDepletionAndAmortization_328d60be-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BusinessCombinationStepAcquisitionEquityInterestInAcquireeRemeasurementGainOrLoss" xlink:label="loc_us-gaap_BusinessCombinationStepAcquisitionEquityInterestInAcquireeRemeasurementGainOrLoss_138bb828-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="3" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_7cb5e5da-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_BusinessCombinationStepAcquisitionEquityInterestInAcquireeRemeasurementGainOrLoss_138bb828-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax" xlink:label="loc_us-gaap_DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax_3b2c4ce4-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="4" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_7cb5e5da-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax_3b2c4ce4-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_GainLossOnSaleOfPropertyPlantEquipment" xlink:label="loc_us-gaap_GainLossOnSaleOfPropertyPlantEquipment_5a9adb72-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="5" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_7cb5e5da-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_GainLossOnSaleOfPropertyPlantEquipment_5a9adb72-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_EquityMethodInvestmentDividendsOrDistributions" xlink:label="loc_us-gaap_EquityMethodInvestmentDividendsOrDistributions_42a25db0-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="6" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_7cb5e5da-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_EquityMethodInvestmentDividendsOrDistributions_42a25db0-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions" xlink:label="loc_us-gaap_IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions_602da3b2-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="7" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_7cb5e5da-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions_602da3b2-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ShareBasedCompensation" xlink:label="loc_us-gaap_ShareBasedCompensation_ab78f61e-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="8" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_7cb5e5da-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_ShareBasedCompensation_ab78f61e-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_AmortizationOfFinancingCosts" xlink:label="loc_us-gaap_AmortizationOfFinancingCosts_0c1127ae-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="9" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_7cb5e5da-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_AmortizationOfFinancingCosts_0c1127ae-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_IncreaseDecreaseInOperatingCapital" xlink:label="loc_us-gaap_IncreaseDecreaseInOperatingCapital_63697ac4-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="10" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_7cb5e5da-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_IncreaseDecreaseInOperatingCapital_63697ac4-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_7c8e1730-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_181e990a-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_7c8e1730-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PaymentsToDevelopRealEstateAssets" xlink:label="loc_us-gaap_PaymentsToDevelopRealEstateAssets_8ba53438-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="1" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_7c8e1730-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_PaymentsToDevelopRealEstateAssets_8ba53438-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PaymentsToAcquireRealEstate" xlink:label="loc_us-gaap_PaymentsToAcquireRealEstate_8ac4490a-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_7c8e1730-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_PaymentsToAcquireRealEstate_8ac4490a-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ProceedsFromSaleOfRealEstateHeldforinvestment" xlink:label="loc_us-gaap_ProceedsFromSaleOfRealEstateHeldforinvestment_936c5336-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_7c8e1730-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_ProceedsFromSaleOfRealEstateHeldforinvestment_936c5336-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PaymentsToAcquireInterestInJointVenture" xlink:label="loc_us-gaap_PaymentsToAcquireInterestInJointVenture_8b522db0-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="4" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_7c8e1730-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_PaymentsToAcquireInterestInJointVenture_8b522db0-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ProceedsFromDistributionsReceivedFromRealEstatePartnerships" xlink:label="loc_us-gaap_ProceedsFromDistributionsReceivedFromRealEstatePartnerships_91b63908-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="5" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_7c8e1730-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_ProceedsFromDistributionsReceivedFromRealEstatePartnerships_91b63908-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PaymentsToAcquireOtherPropertyPlantAndEquipment" xlink:label="loc_us-gaap_PaymentsToAcquireOtherPropertyPlantAndEquipment_8b3b393e-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="6" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_7c8e1730-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_PaymentsToAcquireOtherPropertyPlantAndEquipment_8b3b393e-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_IncreaseDecreaseInRestrictedCash" xlink:label="loc_us-gaap_IncreaseDecreaseInRestrictedCash_63cd9f36-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="7" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_7c8e1730-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_IncreaseDecreaseInRestrictedCash_63cd9f36-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PaymentsForProceedsFromOtherInvestingActivities" xlink:label="loc_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_8aadd2ce-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="8" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_7c8e1730-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_8aadd2ce-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_7ca2b500-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_181e990a-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_7ca2b500-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ProceedsFromLinesOfCredit" xlink:label="loc_us-gaap_ProceedsFromLinesOfCredit_92d2b820-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_7ca2b500-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_ProceedsFromLinesOfCredit_92d2b820-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RepaymentsOfLinesOfCredit" xlink:label="loc_us-gaap_RepaymentsOfLinesOfCredit_a1175f4e-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_7ca2b500-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_RepaymentsOfLinesOfCredit_a1175f4e-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RepaymentsOfNotesPayable" xlink:label="loc_us-gaap_RepaymentsOfNotesPayable_a1232d92-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="3" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_7ca2b500-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_RepaymentsOfNotesPayable_a1232d92-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ProceedsFromIssuanceOfCommonStock" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfCommonStock_92ead8b0-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_7ca2b500-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_ProceedsFromIssuanceOfCommonStock_92ead8b0-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PaymentsOfDividends" xlink:label="loc_us-gaap_PaymentsOfDividends_8b6e04d6-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="5" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_7ca2b500-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_PaymentsOfDividends_8b6e04d6-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="cpt-20130930.xsd#cpt_RedemptionOfPerpetualPreferredUnits" xlink:label="loc_cpt_RedemptionOfPerpetualPreferredUnits_556bafd8-ab60-175e-ede5-9893c444696e" xlink:type="locator" />
    <calculationArc order="6" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_7ca2b500-9656-11e2-88e7-12313d1a0274" xlink:to="loc_cpt_RedemptionOfPerpetualPreferredUnits_556bafd8-ab60-175e-ede5-9893c444696e" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PaymentsOfFinancingCosts" xlink:label="loc_us-gaap_PaymentsOfFinancingCosts_8b6b5182-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="7" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_7ca2b500-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_PaymentsOfFinancingCosts_8b6b5182-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ProceedsFromStockOptionsExercised" xlink:label="loc_us-gaap_ProceedsFromStockOptionsExercised_9308e58a-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="8" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_7ca2b500-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_ProceedsFromStockOptionsExercised_9308e58a-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsReceivableRelatedParties" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsReceivableRelatedParties_63048a2e-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="9" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_7ca2b500-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsReceivableRelatedParties_63048a2e-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ProceedsFromPaymentsForOtherFinancingActivities" xlink:label="loc_us-gaap_ProceedsFromPaymentsForOtherFinancingActivities_92652922-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="10" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_7ca2b500-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_ProceedsFromPaymentsForOtherFinancingActivities_92652922-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
  </calculationLink>
  <calculationLink xlink:role="http://www.camdenliving.com/role/CondensedConsolidatedStatementsOfEquityAndPerpetualPreferredUnits" xlink:type="extended" />
  <calculationLink xlink:role="http://www.camdenliving.com/role/CondensedConsolidatedStatementsOfIncomeAndComprehensiveIncome" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_EarningsPerShareBasic" xlink:label="loc_us-gaap_EarningsPerShareBasic_3f84bf7e-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsPerBasicShare" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsPerBasicShare_601ca102-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_EarningsPerShareBasic_3f84bf7e-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsPerBasicShare_601ca102-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare" xlink:label="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare_60f9f44e-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_EarningsPerShareBasic_3f84bf7e-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare_60f9f44e-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_EarningsPerShareDiluted" xlink:label="loc_us-gaap_EarningsPerShareDiluted_3f8cffe0-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare_60956c04-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_EarningsPerShareDiluted_3f8cffe0-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare_60956c04-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare" xlink:label="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare_603add52-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_EarningsPerShareDiluted_3f8cffe0-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare_603add52-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ComprehensiveIncomeNetOfTax" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTax_20119e50-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest_20164144-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax_20119e50-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest_20164144-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ProfitLoss" xlink:label="loc_us-gaap_ProfitLoss_93e5ee3a-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest_20164144-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_ProfitLoss_93e5ee3a-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_6155c1d4-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ProfitLoss_93e5ee3a-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_6155c1d4-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic_60cf33c6-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_6155c1d4-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic_60cf33c6-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RealEstateRevenueNet" xlink:label="loc_us-gaap_RealEstateRevenueNet_984ff628-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic_60cf33c6-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_RealEstateRevenueNet_984ff628-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_OperatingLeasesIncomeStatementMinimumLeaseRevenue" xlink:label="loc_us-gaap_OperatingLeasesIncomeStatementMinimumLeaseRevenue_811a6394-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_RealEstateRevenueNet_984ff628-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_OperatingLeasesIncomeStatementMinimumLeaseRevenue_811a6394-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_OtherRealEstateRevenue" xlink:label="loc_us-gaap_OtherRealEstateRevenue_8584940e-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_RealEstateRevenueNet_984ff628-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_OtherRealEstateRevenue_8584940e-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_CostOfRealEstateRevenue" xlink:label="loc_us-gaap_CostOfRealEstateRevenue_2305d84c-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic_60cf33c6-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_CostOfRealEstateRevenue_2305d84c-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DirectCostsOfLeasedAndRentedPropertyOrEquipment" xlink:label="loc_us-gaap_DirectCostsOfLeasedAndRentedPropertyOrEquipment_3a3c69cc-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CostOfRealEstateRevenue_2305d84c-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_DirectCostsOfLeasedAndRentedPropertyOrEquipment_3a3c69cc-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RealEstateTaxExpense" xlink:label="loc_us-gaap_RealEstateTaxExpense_96d84714-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CostOfRealEstateRevenue_2305d84c-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_RealEstateTaxExpense_96d84714-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="cpt-20130930.xsd#cpt_TotalNonPropertyIncomeLoss" xlink:label="loc_cpt_TotalNonPropertyIncomeLoss_9fab3441-69e0-b5df-0af6-9893bacef7bb" xlink:type="locator" />
    <calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic_60cf33c6-9656-11e2-88e7-12313d1a0274" xlink:to="loc_cpt_TotalNonPropertyIncomeLoss_9fab3441-69e0-b5df-0af6-9893bacef7bb" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ManagementFeesRevenue" xlink:label="loc_us-gaap_ManagementFeesRevenue_7899b562-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_cpt_TotalNonPropertyIncomeLoss_9fab3441-69e0-b5df-0af6-9893bacef7bb" xlink:to="loc_us-gaap_ManagementFeesRevenue_7899b562-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_InterestAndOtherIncome" xlink:label="loc_us-gaap_InterestAndOtherIncome_67b0b3ea-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_cpt_TotalNonPropertyIncomeLoss_9fab3441-69e0-b5df-0af6-9893bacef7bb" xlink:to="loc_us-gaap_InterestAndOtherIncome_67b0b3ea-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="cpt-20130930.xsd#cpt_IncomeLossOnDeferredCompensationPlans" xlink:label="loc_cpt_IncomeLossOnDeferredCompensationPlans_e5c2099f-0307-9585-8fe0-9893b86c5605" xlink:type="locator" />
    <calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_cpt_TotalNonPropertyIncomeLoss_9fab3441-69e0-b5df-0af6-9893bacef7bb" xlink:to="loc_cpt_IncomeLossOnDeferredCompensationPlans_e5c2099f-0307-9585-8fe0-9893b86c5605" xlink:type="arc" />
    <loc xlink:href="cpt-20130930.xsd#cpt_TotalOtherExpenses" xlink:label="loc_cpt_TotalOtherExpenses_a7d16fa4-09e8-341f-c7ee-9893b85d0952" xlink:type="locator" />
    <calculationArc order="4" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic_60cf33c6-9656-11e2-88e7-12313d1a0274" xlink:to="loc_cpt_TotalOtherExpenses_a7d16fa4-09e8-341f-c7ee-9893b85d0952" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_OwnedPropertyManagementCosts" xlink:label="loc_us-gaap_OwnedPropertyManagementCosts_88397b4c-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_cpt_TotalOtherExpenses_a7d16fa4-09e8-341f-c7ee-9893b85d0952" xlink:to="loc_us-gaap_OwnedPropertyManagementCosts_88397b4c-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_AssetManagementCosts" xlink:label="loc_us-gaap_AssetManagementCosts_0c7456da-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_cpt_TotalOtherExpenses_a7d16fa4-09e8-341f-c7ee-9893b85d0952" xlink:to="loc_us-gaap_AssetManagementCosts_0c7456da-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_GeneralAndAdministrativeExpense" xlink:label="loc_us-gaap_GeneralAndAdministrativeExpense_5b9b5a38-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_cpt_TotalOtherExpenses_a7d16fa4-09e8-341f-c7ee-9893b85d0952" xlink:to="loc_us-gaap_GeneralAndAdministrativeExpense_5b9b5a38-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_InterestExpense" xlink:label="loc_us-gaap_InterestExpense_678fa826-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_cpt_TotalOtherExpenses_a7d16fa4-09e8-341f-c7ee-9893b85d0952" xlink:to="loc_us-gaap_InterestExpense_678fa826-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DepreciationAndAmortization" xlink:label="loc_us-gaap_DepreciationAndAmortization_3285f6bc-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="5" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_cpt_TotalOtherExpenses_a7d16fa4-09e8-341f-c7ee-9893b85d0952" xlink:to="loc_us-gaap_DepreciationAndAmortization_3285f6bc-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_AmortizationOfFinancingCosts" xlink:label="loc_us-gaap_AmortizationOfFinancingCosts_0c1127ae-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="6" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_cpt_TotalOtherExpenses_a7d16fa4-09e8-341f-c7ee-9893b85d0952" xlink:to="loc_us-gaap_AmortizationOfFinancingCosts_0c1127ae-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="cpt-20130930.xsd#cpt_ExpenseBenefitOnDeferredCompensationPlans" xlink:label="loc_cpt_ExpenseBenefitOnDeferredCompensationPlans_b1a58470-b17b-8b39-daea-9893bcb2a220" xlink:type="locator" />
    <calculationArc order="7" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_cpt_TotalOtherExpenses_a7d16fa4-09e8-341f-c7ee-9893b85d0952" xlink:to="loc_cpt_ExpenseBenefitOnDeferredCompensationPlans_b1a58470-b17b-8b39-daea-9893bcb2a220" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_GainLossOnSaleOfPropertyPlantEquipment" xlink:label="loc_us-gaap_GainLossOnSaleOfPropertyPlantEquipment_5a9adb72-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="5" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic_60cf33c6-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_GainLossOnSaleOfPropertyPlantEquipment_5a9adb72-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BusinessCombinationStepAcquisitionEquityInterestInAcquireeRemeasurementGainOrLoss" xlink:label="loc_us-gaap_BusinessCombinationStepAcquisitionEquityInterestInAcquireeRemeasurementGainOrLoss_138bb828-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="6" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic_60cf33c6-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_BusinessCombinationStepAcquisitionEquityInterestInAcquireeRemeasurementGainOrLoss_138bb828-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions" xlink:label="loc_us-gaap_IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions_602da3b2-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="7" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic_60cf33c6-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions_602da3b2-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_CurrentIncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_CurrentIncomeTaxExpenseBenefit_24375614-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_6155c1d4-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_CurrentIncomeTaxExpenseBenefit_24375614-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodNetOfTax" xlink:label="loc_us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodNetOfTax_3b0b5ca0-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ProfitLoss_93e5ee3a-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodNetOfTax_3b0b5ca0-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax" xlink:label="loc_us-gaap_DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax_3b2c4ce4-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ProfitLoss_93e5ee3a-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax_3b2c4ce4-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="cpt-20130930.xsd#cpt_ReclassificationOfPriorServiceCostAndLoss" xlink:label="loc_cpt_ReclassificationOfPriorServiceCostAndLoss_50a3ef45-c29c-39ae-8357-9893c695d5da" xlink:type="locator" />
    <calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest_20164144-9656-11e2-88e7-12313d1a0274" xlink:to="loc_cpt_ReclassificationOfPriorServiceCostAndLoss_50a3ef45-c29c-39ae-8357-9893c695d5da" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_NetIncomeLossAttributableToNoncontrollingInterest" xlink:label="loc_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_7ccc070c-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax_20119e50-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_7ccc070c-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToNoncontrollingInterest" xlink:label="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToNoncontrollingInterest_62a2d036-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="3" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax_20119e50-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToNoncontrollingInterest_62a2d036-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_NetIncomeLossAttributableToRedeemableNoncontrollingInterest" xlink:label="loc_us-gaap_NetIncomeLossAttributableToRedeemableNoncontrollingInterest_7bb1bc18-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="4" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax_20119e50-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_NetIncomeLossAttributableToRedeemableNoncontrollingInterest_7bb1bc18-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="cpt-20130930.xsd#cpt_WriteOffOfOriginalIssuanceCostsOfRedeemedPerpetualPreferredUnits" xlink:label="loc_cpt_WriteOffOfOriginalIssuanceCostsOfRedeemedPerpetualPreferredUnits_48091f77-ff8d-131f-b7b3-9893b89b18f4" xlink:type="locator" />
    <calculationArc order="5" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax_20119e50-9656-11e2-88e7-12313d1a0274" xlink:to="loc_cpt_WriteOffOfOriginalIssuanceCostsOfRedeemedPerpetualPreferredUnits_48091f77-ff8d-131f-b7b3-9893b89b18f4" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaap_NetIncomeLoss_7cc2c354-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_7cc2c354-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_ProfitLoss_93e5ee3a-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_7cc2c354-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_7ccc070c-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <calculationArc order="3" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_7cc2c354-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToNoncontrollingInterest_62a2d036-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <calculationArc order="4" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_7cc2c354-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_NetIncomeLossAttributableToRedeemableNoncontrollingInterest_7bb1bc18-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <calculationArc order="5" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_7cc2c354-9656-11e2-88e7-12313d1a0274" xlink:to="loc_cpt_WriteOffOfOriginalIssuanceCostsOfRedeemedPerpetualPreferredUnits_48091f77-ff8d-131f-b7b3-9893b89b18f4" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_IncomeLossFromContinuingOperations" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperations_602091c2-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperations_602091c2-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_6155c1d4-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperations_602091c2-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_7ccc070c-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <calculationArc order="3" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperations_602091c2-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_NetIncomeLossAttributableToRedeemableNoncontrollingInterest_7bb1bc18-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <calculationArc order="4" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperations_602091c2-9656-11e2-88e7-12313d1a0274" xlink:to="loc_cpt_WriteOffOfOriginalIssuanceCostsOfRedeemedPerpetualPreferredUnits_48091f77-ff8d-131f-b7b3-9893b89b18f4" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity" xlink:label="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity_617d425e-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax" xlink:label="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax_60d6cab4-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity_617d425e-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax_60d6cab4-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity_617d425e-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToNoncontrollingInterest_62a2d036-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
  </calculationLink>
  <calculationLink xlink:role="http://www.camdenliving.com/role/DescriptionOfBusiness" xlink:type="extended" />
  <calculationLink xlink:role="http://www.camdenliving.com/role/DescriptionOfBusinessDetails" xlink:type="extended" />
  <calculationLink xlink:role="http://www.camdenliving.com/role/DocumentAndEntityInformation" xlink:type="extended" />
  <calculationLink xlink:role="http://www.camdenliving.com/role/FairValueDisclosures" xlink:type="extended" />
  <calculationLink xlink:role="http://www.camdenliving.com/role/FairValueDisclosuresFairValueOfNotesReceivableAndNotesPayableDetails" xlink:type="extended" />
  <calculationLink xlink:role="http://www.camdenliving.com/role/FairValueDisclosuresFinancialAssetsAndLiabilitiesMeasuredAtFairValueDetails" xlink:type="extended" />
  <calculationLink xlink:role="http://www.camdenliving.com/role/FairValueDisclosuresTables" xlink:type="extended" />
  <calculationLink xlink:role="http://www.camdenliving.com/role/IncomeTaxes" xlink:type="extended" />
  <calculationLink xlink:role="http://www.camdenliving.com/role/IncomeTaxesDetails" xlink:type="extended" />
  <calculationLink xlink:role="http://www.camdenliving.com/role/InvestmentsInJointVentures" xlink:type="extended" />
  <calculationLink xlink:role="http://www.camdenliving.com/role/InvestmentsInJointVenturesAggregateBalanceSheetAndStatementOfIncomeDataForUnconsolidatedJointVenturesDetails" xlink:type="extended" />
  <calculationLink xlink:role="http://www.camdenliving.com/role/InvestmentsInJointVenturesNarrativeDetails" xlink:type="extended" />
  <calculationLink xlink:role="http://www.camdenliving.com/role/InvestmentsInJointVenturesTables" xlink:type="extended" />
  <calculationLink xlink:role="http://www.camdenliving.com/role/NetChangeInOperatingAccounts" xlink:type="extended" />
  <calculationLink xlink:role="http://www.camdenliving.com/role/NetChangeInOperatingAccountsEffectOfChangesInOperatingAccountsOnCashFlowsFromOperatingActivitiesDetails" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_IncreaseDecreaseInOperatingCapital" xlink:label="loc_us-gaap_IncreaseDecreaseInOperatingCapital_63697ac4-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_IncreaseDecreaseInPropertyAndOtherTaxesPayable" xlink:label="loc_us-gaap_IncreaseDecreaseInPropertyAndOtherTaxesPayable_65187cf8-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="1" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapital_63697ac4-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_IncreaseDecreaseInPropertyAndOtherTaxesPayable_65187cf8-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet_637d1d68-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapital_63697ac4-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet_637d1d68-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_IncreaseDecreaseInOtherOperatingLiabilities" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherOperatingLiabilities_634bf698-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="3" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapital_63697ac4-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherOperatingLiabilities_634bf698-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities_63119b74-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="4" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapital_63697ac4-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities_63119b74-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_IncreaseDecreaseInOtherOperatingAssets" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherOperatingAssets_63a56200-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="5" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapital_63697ac4-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherOperatingAssets_63a56200-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
  </calculationLink>
  <calculationLink xlink:role="http://www.camdenliving.com/role/NetChangeInOperatingAccountsTables" xlink:type="extended" />
  <calculationLink xlink:role="http://www.camdenliving.com/role/NoncontrollingInterests" xlink:type="extended" />
  <calculationLink xlink:role="http://www.camdenliving.com/role/NoncontrollingInterestsEffectOfChangesInOwnershipInterestInSubsidiariesDetails" xlink:type="extended">
    <loc xlink:href="cpt-20130930.xsd#cpt_ChangeInCommonShareholdersEquityAndNetTransfersFromNoncontrollingInterests" xlink:label="loc_cpt_ChangeInCommonShareholdersEquityAndNetTransfersFromNoncontrollingInterests_6a5cc942-b1fc-8ffc-d124-9893babe8fe8" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaap_NetIncomeLoss_7cc2c354-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_cpt_ChangeInCommonShareholdersEquityAndNetTransfersFromNoncontrollingInterests_6a5cc942-b1fc-8ffc-d124-9893babe8fe8" xlink:to="loc_us-gaap_NetIncomeLoss_7cc2c354-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="cpt-20130930.xsd#cpt_NoncontrollingInterestIncreaseDecreasefromEquityUponConversionOfOperatingPartnershipUnit" xlink:label="loc_cpt_NoncontrollingInterestIncreaseDecreasefromEquityUponConversionOfOperatingPartnershipUnit_4e919adc-430e-32c1-a658-9893b6b70282" xlink:type="locator" />
    <calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_cpt_ChangeInCommonShareholdersEquityAndNetTransfersFromNoncontrollingInterests_6a5cc942-b1fc-8ffc-d124-9893babe8fe8" xlink:to="loc_cpt_NoncontrollingInterestIncreaseDecreasefromEquityUponConversionOfOperatingPartnershipUnit_4e919adc-430e-32c1-a658-9893b6b70282" xlink:type="arc" />
    <loc xlink:href="cpt-20130930.xsd#cpt_DecreaseInApicForPurchaseOfRemainingNoncontrollingOwnershipInterestInConsolidatedJv" xlink:label="loc_cpt_DecreaseInApicForPurchaseOfRemainingNoncontrollingOwnershipInterestInConsolidatedJv_8cb716fa-3c2a-11e3-8ba6-12313d0541a1" xlink:type="locator" />
    <calculationArc order="3" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_cpt_ChangeInCommonShareholdersEquityAndNetTransfersFromNoncontrollingInterests_6a5cc942-b1fc-8ffc-d124-9893babe8fe8" xlink:to="loc_cpt_DecreaseInApicForPurchaseOfRemainingNoncontrollingOwnershipInterestInConsolidatedJv_8cb716fa-3c2a-11e3-8ba6-12313d0541a1" xlink:type="arc" />
  </calculationLink>
  <calculationLink xlink:role="http://www.camdenliving.com/role/NoncontrollingInterestsTables" xlink:type="extended" />
  <calculationLink xlink:role="http://www.camdenliving.com/role/NotesPayable" xlink:type="extended" />
  <calculationLink xlink:role="http://www.camdenliving.com/role/NotesPayableNarrativeDetails" xlink:type="extended" />
  <calculationLink xlink:role="http://www.camdenliving.com/role/NotesPayableScheduledRepaymentsOnOutstandingDebtDetails" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_LongTermDebt" xlink:label="loc_us-gaap_LongTermDebt_754fc3b0-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths_7621d26a-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebt_754fc3b0-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths_7621d26a-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo_760cfcdc-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebt_754fc3b0-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo_760cfcdc-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree_761ba6b0-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebt_754fc3b0-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree_761ba6b0-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour_7616a25a-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebt_754fc3b0-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour_7616a25a-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive_7618fba4-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="5" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebt_754fc3b0-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive_7618fba4-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive_761b364e-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="6" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebt_754fc3b0-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive_761b364e-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
  </calculationLink>
  <calculationLink xlink:role="http://www.camdenliving.com/role/NotesPayableSummaryOfIndebtednessDetails" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_NotesPayable" xlink:label="loc_us-gaap_NotesPayable_7dad90dc-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_SecuredDebt" xlink:label="loc_us-gaap_SecuredDebt_a9f78ad0-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NotesPayable_7dad90dc-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_SecuredDebt_a9f78ad0-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_UnsecuredDebt" xlink:label="loc_us-gaap_UnsecuredDebt_b35d9d76-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NotesPayable_7dad90dc-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_UnsecuredDebt_b35d9d76-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
  </calculationLink>
  <calculationLink xlink:role="http://www.camdenliving.com/role/NotesPayableTables" xlink:type="extended" />
  <calculationLink xlink:role="http://www.camdenliving.com/role/PerShareData" xlink:type="extended" />
  <calculationLink xlink:role="http://www.camdenliving.com/role/PerShareDataCalculationOfBasicAndDilutedEarningsPerShareDetails" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic" xlink:label="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_7baa5572-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <loc xlink:href="cpt-20130930.xsd#cpt_IncomeLossFromContinuingOperationsAfterAdjustmentForAmountAllocatedToParticipatingSecurities" xlink:label="loc_cpt_IncomeLossFromContinuingOperationsAfterAdjustmentForAmountAllocatedToParticipatingSecurities_daa3edcf-e7d2-6aba-ec0f-9893c473661d" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_7baa5572-9656-11e2-88e7-12313d1a0274" xlink:to="loc_cpt_IncomeLossFromContinuingOperationsAfterAdjustmentForAmountAllocatedToParticipatingSecurities_daa3edcf-e7d2-6aba-ec0f-9893c473661d" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_IncomeLossFromContinuingOperations" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperations_602091c2-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_cpt_IncomeLossFromContinuingOperationsAfterAdjustmentForAmountAllocatedToParticipatingSecurities_daa3edcf-e7d2-6aba-ec0f-9893c473661d" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperations_602091c2-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_UndistributedEarningsAllocatedToParticipatingSecurities" xlink:label="loc_us-gaap_UndistributedEarningsAllocatedToParticipatingSecurities_b2d37cd6-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_cpt_IncomeLossFromContinuingOperationsAfterAdjustmentForAmountAllocatedToParticipatingSecurities_daa3edcf-e7d2-6aba-ec0f-9893c473661d" xlink:to="loc_us-gaap_UndistributedEarningsAllocatedToParticipatingSecurities_b2d37cd6-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity" xlink:label="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity_617d425e-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_7baa5572-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity_617d425e-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted" xlink:label="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted_7bbc6190-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <loc xlink:href="cpt-20130930.xsd#cpt_IncomeLossFromContinuingOperationsAfterAdjustmentForAmountAllocatedToCommonUnits" xlink:label="loc_cpt_IncomeLossFromContinuingOperationsAfterAdjustmentForAmountAllocatedToCommonUnits_ac1a73bd-f6c9-2922-4b5a-9893b6a7e632" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted_7bbc6190-9656-11e2-88e7-12313d1a0274" xlink:to="loc_cpt_IncomeLossFromContinuingOperationsAfterAdjustmentForAmountAllocatedToCommonUnits_ac1a73bd-f6c9-2922-4b5a-9893b6a7e632" xlink:type="arc" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_cpt_IncomeLossFromContinuingOperationsAfterAdjustmentForAmountAllocatedToCommonUnits_ac1a73bd-f6c9-2922-4b5a-9893b6a7e632" xlink:to="loc_cpt_IncomeLossFromContinuingOperationsAfterAdjustmentForAmountAllocatedToParticipatingSecurities_daa3edcf-e7d2-6aba-ec0f-9893c473661d" xlink:type="arc" />
    <loc xlink:href="cpt-20130930.xsd#cpt_Incomeallocatedtocommonunits" xlink:label="loc_cpt_Incomeallocatedtocommonunits_28deb02c-aebc-4942-8982-9893c676ede7" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_cpt_IncomeLossFromContinuingOperationsAfterAdjustmentForAmountAllocatedToCommonUnits_ac1a73bd-f6c9-2922-4b5a-9893b6a7e632" xlink:to="loc_cpt_Incomeallocatedtocommonunits_28deb02c-aebc-4942-8982-9893c676ede7" xlink:type="arc" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted_7bbc6190-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity_617d425e-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="cpt-20130930.xsd#cpt_Incomefromdiscontinuedoperationsallocatedtocommonunits" xlink:label="loc_cpt_Incomefromdiscontinuedoperationsallocatedtocommonunits_d37a01e6-69e9-a73f-45e8-9893c26ff480" xlink:type="locator" />
    <calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted_7bbc6190-9656-11e2-88e7-12313d1a0274" xlink:to="loc_cpt_Incomefromdiscontinuedoperationsallocatedtocommonunits_d37a01e6-69e9-a73f-45e8-9893c26ff480" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xlink:label="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_b93d27d4-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_b91dcd62-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_b93d27d4-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_b91dcd62-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="cpt-20130930.xsd#cpt_CommonShareOptionsAndShareAwardsGranted" xlink:label="loc_cpt_CommonShareOptionsAndShareAwardsGranted_cfee3ec0-bb60-417c-41ff-9893b8ca0bce" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_b93d27d4-9656-11e2-88e7-12313d1a0274" xlink:to="loc_cpt_CommonShareOptionsAndShareAwardsGranted_cfee3ec0-bb60-417c-41ff-9893b8ca0bce" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_IncrementalCommonSharesAttributableToConversionOfPreferredStock" xlink:label="loc_us-gaap_IncrementalCommonSharesAttributableToConversionOfPreferredStock_655809f4-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_b93d27d4-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_IncrementalCommonSharesAttributableToConversionOfPreferredStock_655809f4-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
  </calculationLink>
  <calculationLink xlink:role="http://www.camdenliving.com/role/PerShareDataTables" xlink:type="extended" />
  <calculationLink xlink:role="http://www.camdenliving.com/role/PropertyAcquisitionsDiscontinuedOperationsAndAssetsHeldForSale" xlink:type="extended" />
  <calculationLink xlink:role="http://www.camdenliving.com/role/PropertyAcquisitionsDiscontinuedOperationsAndAssetsHeldForSaleNarrativeDetails" xlink:type="extended" />
  <calculationLink xlink:role="http://www.camdenliving.com/role/PropertyAcquisitionsDiscontinuedOperationsAndAssetsHeldForSalePropertyAcquisitionsDiscontinuedOperationsAndAssetsHeldForSaleFairValueOfAssetsAcquiredDetails" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet_1303979a-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets_107004f0-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet_1303979a-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets_107004f0-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedBuildings" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedBuildings_1072b574-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets_107004f0-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedBuildings_1072b574-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLand" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLand_108e714c-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets_107004f0-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLand_108e714c-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets_1010aa46-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets_107004f0-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets_1010aa46-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities_10d7ed18-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet_1303979a-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities_10d7ed18-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOther" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOther_112fb11a-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities_10d7ed18-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOther_112fb11a-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
  </calculationLink>
  <calculationLink xlink:role="http://www.camdenliving.com/role/PropertyAcquisitionsDiscontinuedOperationsAndAssetsHeldForSaleSummaryOfIncomeFromDiscontinuedOperationsDetails" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodNetOfTax" xlink:label="loc_us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodNetOfTax_3b0b5ca0-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationOperatingIncomeLoss" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationOperatingIncomeLoss_3b8d6632-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodNetOfTax_3b0b5ca0-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationOperatingIncomeLoss_3b8d6632-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationRevenue" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationRevenue_3c4bff2a-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationOperatingIncomeLoss_3b8d6632-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationRevenue_3c4bff2a-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationOperatingExpense" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationOperatingExpense_3c0ff386-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationOperatingIncomeLoss_3b8d6632-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationOperatingExpense_3c0ff386-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationInterestExpense" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationInterestExpense_3bf5a7d8-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodNetOfTax_3b0b5ca0-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationInterestExpense_3bf5a7d8-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DepreciationAndAmortizationDiscontinuedOperations" xlink:label="loc_us-gaap_DepreciationAndAmortizationDiscontinuedOperations_328e3430-9656-11e2-88e7-12313d1a0274" xlink:type="locator" />
    <calculationArc order="3" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodNetOfTax_3b0b5ca0-9656-11e2-88e7-12313d1a0274" xlink:to="loc_us-gaap_DepreciationAndAmortizationDiscontinuedOperations_328e3430-9656-11e2-88e7-12313d1a0274" xlink:type="arc" />
  </calculationLink>
  <calculationLink xlink:role="http://www.camdenliving.com/role/PropertyAcquisitionsDiscontinuedOperationsAndAssetsHeldForSaleTables" xlink:type="extended" />
  <calculationLink xlink:role="http://www.camdenliving.com/role/ShareBasedCompensationAndNonQualifiedDeferredCompensationPlan" xlink:type="extended" />
  <calculationLink xlink:role="http://www.camdenliving.com/role/ShareBasedCompensationAndNonQualifiedDeferredCompensationPlanNarrativeDetails" xlink:type="extended" />
  <calculationLink xlink:role="http://www.camdenliving.com/role/ShareBasedCompensationAndNonQualifiedDeferredCompensationPlanShareBasedCompensationAndNonQualifiedDeferredCompensationPlanNqdcDiversifiedShareAwardsRollforwardDetails" xlink:type="extended" />
  <calculationLink xlink:role="http://www.camdenliving.com/role/ShareBasedCompensationAndNonQualifiedDeferredCompensationPlanSummaryOfShareIncentivePlansDetails" xlink:type="extended" />
  <calculationLink xlink:role="http://www.camdenliving.com/role/ShareBasedCompensationAndNonQualifiedDeferredCompensationPlanSummaryOfShareOptionsOutstandingAndExercisableDetails" xlink:type="extended" />
  <calculationLink xlink:role="http://www.camdenliving.com/role/ShareBasedCompensationAndNonQualifiedDeferredCompensationPlanTables" xlink:type="extended" />
  <calculationLink xlink:role="http://www.camdenliving.com/role/SummaryOfSignificantAccountingPolicies" xlink:type="extended" />
  <calculationLink xlink:role="http://www.camdenliving.com/role/SummaryOfSignificantAccountingPoliciesExpectedUsefulLivesOfDepreciablePropertyDetails" xlink:type="extended" />
  <calculationLink xlink:role="http://www.camdenliving.com/role/SummaryOfSignificantAccountingPoliciesNarrativeDetails" xlink:type="extended" />
  <calculationLink xlink:role="http://www.camdenliving.com/role/SummaryOfSignificantAccountingPoliciesPolicies" xlink:type="extended" />
  <calculationLink xlink:role="http://www.camdenliving.com/role/SummaryOfSignificantAccountingPoliciesSummaryOfSignificantAccountingPoliciesRevenuesFromBelowMarketLeasesAndExpensesFromInPlaceLeasesDetails" xlink:type="extended" />
  <calculationLink xlink:role="http://www.camdenliving.com/role/SummaryOfSignificantAccountingPoliciesSummaryOfSignificantAccountingPoliciesValueOfLeasesAcquiredDetails" xlink:type="extended" />
  <calculationLink xlink:role="http://www.camdenliving.com/role/SummaryOfSignificantAccountingPoliciesTables" xlink:type="extended" />
</linkbase>
