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  <xsd:element abstract="true" id="bxp_DepositaryAxis" name="DepositaryAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="bxp_DepositaryDomain" name="DepositaryDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="bxp_DepositarysharesMember" name="DepositarysharesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="bxp_DepositorySharesOfSeriesBCumulativeRedeemablePreferredMember" name="DepositorySharesOfSeriesBCumulativeRedeemablePreferredMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_DevelopmentAndManagementServices" name="DevelopmentAndManagementServices" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="bxp_Differencebetweennetcashproceedsreceivedandnoncontrollinginterestrecognized" name="Differencebetweennetcashproceedsreceivedandnoncontrollinginterestrecognized" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="bxp_DilutiveSecuritiesPerShareAmount" name="DilutiveSecuritiesPerShareAmount" nillable="true" substitutionGroup="xbrli:item" type="num:perShareItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_DiscontinuedOperationGainLossOnForgivenessOfDebt" name="DiscontinuedOperationGainLossOnForgivenessOfDebt" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="bxp_DistributionsDeclaredToMYLTIPUnitsPerUnit" name="DistributionsDeclaredToMYLTIPUnitsPerUnit" nillable="true" substitutionGroup="xbrli:item" type="num:perShareItemType" xbrli:periodType="instant" />
  <xsd:element id="bxp_DistributionsDeclaredToOpAndLtipUnitsPerUnit" name="DistributionsDeclaredToOpAndLtipUnitsPerUnit" nillable="true" substitutionGroup="xbrli:item" type="num:perShareItemType" xbrli:periodType="instant" />
  <xsd:element id="bxp_DistributionsMadeToMYLTIPUnitsPerUnit" name="DistributionsMadeToMYLTIPUnitsPerUnit" nillable="true" substitutionGroup="xbrli:item" type="num:perShareItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_DistributionsMadeToOpAndLtipUnitsPerUnit" name="DistributionsMadeToOpAndLtipUnitsPerUnit" nillable="true" substitutionGroup="xbrli:item" type="num:perShareItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_DistributionsOnRedeemablePropertyPartnership" name="DistributionsOnRedeemablePropertyPartnership" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="bxp_DistributionsPercentBeforeMeasurementDate" name="DistributionsPercentBeforeMeasurementDate" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_DistributionsToNoncontrollingInterestCommonUnits" name="DistributionsToNoncontrollingInterestCommonUnits" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="bxp_DistributionstoPreferredUnits" name="DistributionstoPreferredUnits" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="bxp_DocumentAndEntityInformationAbstract" name="DocumentAndEntityInformationAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_EarningsPerShareAfterAllccationofUndistributedEarningstoParticiaptingSecuritiesBasicdollarspershare" name="EarningsPerShareAfterAllccationofUndistributedEarningstoParticiaptingSecuritiesBasicdollarspershare" nillable="true" substitutionGroup="xbrli:item" type="num:perShareItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_EarthquakeCoverageIncludedInBuildersRiskPolicyFor535Mission" name="EarthquakeCoverageIncludedInBuildersRiskPolicyFor535Mission" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="bxp_EarthquakeCoverageIncludedInBuildersRiskPolicyFor680Folsom" name="EarthquakeCoverageIncludedInBuildersRiskPolicyFor680Folsom" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="bxp_EarthquakeCoverageIncludedInBuildersRiskPolicyForImprovementsforSalesforceTower" name="EarthquakeCoverageIncludedInBuildersRiskPolicyForImprovementsforSalesforceTower" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="bxp_EarthquakeDeductibleInsurancePercentageOfValueOfAffectedPropertySanFrancisco" name="EarthquakeDeductibleInsurancePercentageOfValueOfAffectedPropertySanFrancisco" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="bxp_ElevenYearUnsecuredSeniorNotesThreePointNineFiveFourPercentMember" name="ElevenYearUnsecuredSeniorNotesThreePointNineFiveFourPercentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_EliminationOfInterEntityInterestOnPartnerLoan" name="EliminationOfInterEntityInterestOnPartnerLoan" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="bxp_EmployeeAndDirectorPaymentPerShare" name="EmployeeAndDirectorPaymentPerShare" nillable="true" substitutionGroup="xbrli:item" type="num:perShareItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="bxp_EntityOwningLandAndInfrastructureOfProjectMember" name="EntityOwningLandAndInfrastructureOfProjectMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_EquityMethodiNvestmentRealizedGainLossOnDisposalCompanyShare" name="EquityMethodiNvestmentRealizedGainLossOnDisposalCompanyShare" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="bxp_EquityProfitLoss" name="EquityProfitLoss" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="bxp_ExcessStockParOrStatedValuePerShare" name="ExcessStockParOrStatedValuePerShare" nillable="true" substitutionGroup="xbrli:item" type="num:perShareItemType" xbrli:periodType="instant" />
  <xsd:element id="bxp_ExcessStockValue" name="ExcessStockValue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="bxp_ExtensionOptioninyears" name="ExtensionOptioninyears" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_Finalawardspercentageoftarget" name="Finalawardspercentageoftarget" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_FirstopportunitytoredeemSeriesFourPreferredUnitsindays" name="FirstopportunitytoredeemSeriesFourPreferredUnitsindays" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="bxp_FiveFourZeroMadisonVentureLlcMember" name="FiveFourZeroMadisonVentureLlcMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="bxp_FiveZeroZeroNorthCapitolLlcMember" name="FiveZeroZeroNorthCapitolLlcMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="bxp_FivezeroFiveNinthStreetMember" name="FivezeroFiveNinthStreetMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="bxp_FivezerooneKStreetLLCMember" name="FivezerooneKStreetLLCMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_FixedPriceOptionExpirationDate" name="FixedPriceOptionExpirationDate" nillable="true" substitutionGroup="xbrli:item" type="xbrli:dateItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_FixedPricetoAcquireRemainingPortionofJointventure" name="FixedPricetoAcquireRemainingPortionofJointventure" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="bxp_FountainSquareMember" name="FountainSquareMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="bxp_FourOneFiveMainStreetMember" name="FourOneFiveMainStreetMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_FutureFixedPricetoAcquireRemainingPortionofJointventure" name="FutureFixedPricetoAcquireRemainingPortionofJointventure" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="bxp_FuturedevelopmentMember" name="FuturedevelopmentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_GainonConsolidationofJointVentures" name="GainonConsolidationofJointVentures" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="bxp_GuaranteeObligationRelatedToTenantReLeasingCosts" name="GuaranteeObligationRelatedToTenantReLeasingCosts" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="bxp_HedgingIssuerAxis" name="HedgingIssuerAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="bxp_HedgingIssuerDomain" name="HedgingIssuerDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="bxp_HighMember" name="HighMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="bxp_HotelPropertyMember" name="HotelPropertyMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_IncomeStatementBasisDifferential" name="IncomeStatementBasisDifferential" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="bxp_IndicesUsedtoCompareTSR" name="IndicesUsedtoCompareTSR" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_InlieuofacashredemptionOPunittoCommonStockconversion" name="InlieuofacashredemptionOPunittoCommonStockconversion" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant" />
  <xsd:element id="bxp_InsurancePolicyLimit" name="InsurancePolicyLimit" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="bxp_InterestRateSwapRangetwopointonetwoninepercenttotwopointfivesevenonepercentMember" name="InterestRateSwapRangetwopointonetwoninepercenttotwopointfivesevenonepercentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="bxp_InterestRateSwapRangetwopointonetwoninepercenttotwopointthreetwofivepercentMember" name="InterestRateSwapRangetwopointonetwoninepercenttotwopointthreetwofivepercentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="bxp_InterestRateSwapRangetwopointsixsevensevenpercenttotwopointninefivezeropercentMember" name="InterestRateSwapRangetwopointsixsevensevenpercenttotwopointninefivezeropercentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="bxp_InterestRateSwapRangetwopointthreefoureightpercenttotwopointfivesevenonepercentMemberMember" name="InterestRateSwapRangetwopointthreefoureightpercenttotwopointfivesevenonepercentMemberMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="bxp_InterestRateSwapRangetwopointthreethreesixpercenttotwopointfourthreezeropercentMember" name="InterestRateSwapRangetwopointthreethreesixpercenttotwopointfourthreezeropercentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="bxp_InterestRateSwapRangetwopointthreethreesixpercenttotwopointninefivezeropercentMember" name="InterestRateSwapRangetwopointthreethreesixpercenttotwopointninefivezeropercentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_Investmentinunconsolidatedjointventureelminateduponconsolidation" name="Investmentinunconsolidatedjointventureelminateduponconsolidation" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="bxp_InvestmentsInUnconsolidatedJointVenturesAbstract" name="InvestmentsInUnconsolidatedJointVenturesAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_IssuanceOfRestrictedSecuritiesToEmployeesAndDirectors" name="IssuanceOfRestrictedSecuritiesToEmployeesAndDirectors" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="bxp_IssuanceOfRestrictedUnitsToEmployeesAndDirectors" name="IssuanceOfRestrictedUnitsToEmployeesAndDirectors" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="bxp_Issuanceofredeemablepreferredunits" name="Issuanceofredeemablepreferredunits" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="bxp_LTIPand2016MYLTIPUnitsMember" name="LTIPand2016MYLTIPUnitsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_LandImprovementsContributedByNoncontrollingPropertyPartnership" name="LandImprovementsContributedByNoncontrollingPropertyPartnership" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="bxp_LehmanMember" name="LehmanMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_LetterOfCreditAndPerformanceObligation" name="LetterOfCreditAndPerformanceObligation" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="bxp_LongTermIncentivePlanUnits" name="LongTermIncentivePlanUnits" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant" />
  <xsd:element id="bxp_LtipUnitsIssued" name="LtipUnitsIssued" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="bxp_LtipUnitsMember" name="LtipUnitsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="bxp_LtipsincludingvestedMYLTIPSAndRestrictedStockMember" name="LtipsincludingvestedMYLTIPSAndRestrictedStockMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="bxp_MYLTIPTwothousandfourteenMember" name="MYLTIPTwothousandfourteenMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="bxp_MYLTIPTwothousandsixteenMember" name="MYLTIPTwothousandsixteenMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="bxp_MYLTIPUnitsMember" name="MYLTIPUnitsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="bxp_MYLTIPtwothousandandsixteenMember" name="MYLTIPtwothousandandsixteenMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="bxp_MYLTIPtwothousandfifteenMember" name="MYLTIPtwothousandfifteenMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="bxp_MYLTIPtwothousandthirteenMember" name="MYLTIPtwothousandthirteenMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="bxp_MYLTIPvesting2019Member" name="MYLTIPvesting2019Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="bxp_MYLTIPvestingtwothousandtwentyMember" name="MYLTIPvestingtwothousandtwentyMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_MaximumLeverageRatio" name="MaximumLeverageRatio" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_MaximumPortionThatMayBeRequiredForRedemptionOfTotal" name="MaximumPortionThatMayBeRequiredForRedemptionOfTotal" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_MaximumRedeemableOnRedemptionDatesPreferredUnits" name="MaximumRedeemableOnRedemptionDatesPreferredUnits" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant" />
  <xsd:element id="bxp_MaximumSecuredDebtLeverageRatio" name="MaximumSecuredDebtLeverageRatio" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_Maximumpercentageofconstructioncoststoallowpartnertohavealoan" name="Maximumpercentageofconstructioncoststoallowpartnertohavealoan" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_Maximumperiodofhedgingexposuretothevariabilityinfuturecashflowsforforecastedtransactionsinyears" name="Maximumperiodofhedgingexposuretothevariabilityinfuturecashflowsforforecastedtransactionsinyears" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="bxp_MetropolitanSquareAssociatesLlcMember" name="MetropolitanSquareAssociatesLlcMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_MinimumInterestCoverageRatio" name="MinimumInterestCoverageRatio" nillable="true" substitutionGroup="xbrli:item" type="xbrli:decimalItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_MinimumUnencumberedAssetValuePercentageOfUnsecuredDebt" name="MinimumUnencumberedAssetValuePercentageOfUnsecuredDebt" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_Minimumsquarefootagetomakeapotentialadditionalpaymenttojointventurepartnerinsqft" name="Minimumsquarefootagetomakeapotentialadditionalpaymenttojointventurepartnerinsqft" nillable="true" substitutionGroup="xbrli:item" type="num:areaItemType" xbrli:periodType="instant" />
  <xsd:element id="bxp_MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolderstoPropertyPartnerships" name="MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolderstoPropertyPartnerships" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="bxp_MinorityInterestDistributionsLimitedPartnerships" name="MinorityInterestDistributionsLimitedPartnerships" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="bxp_Mortgagedebtassumeduponacquisitionofnoncontrollinginterest" name="Mortgagedebtassumeduponacquisitionofnoncontrollinginterest" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="bxp_Mortgageloanterminyears" name="Mortgageloanterminyears" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_MyltipUnitsIssued" name="MyltipUnitsIssued" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant" />
  <xsd:element id="bxp_MyltipValueAmortizedIntoEarningsYears" name="MyltipValueAmortizedIntoEarningsYears" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_NameOfJointVentureProperty" name="NameOfJointVentureProperty" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="bxp_NareitOfficeIndexAdjustedMember" name="NareitOfficeIndexAdjustedMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_NetActivityFromStockOptionAndIncentivePlanShares" name="NetActivityFromStockOptionAndIncentivePlanShares" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_NetActivityFromStockOptionAndIncentivePlanValue" name="NetActivityFromStockOptionAndIncentivePlanValue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="bxp_NetContractualSalesPrice" name="NetContractualSalesPrice" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="bxp_NetIncomeAllocableToGeneralAndLimitedPartnerUnits" name="NetIncomeAllocableToGeneralAndLimitedPartnerUnits" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="bxp_NetIncomeAttributableToCommonUnits" name="NetIncomeAttributableToCommonUnits" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="bxp_NetIncomeLossAvailableToCommonStockholdersAfterAllocationofUndistributedEarningstoParticipatingSecuritiesBasic" name="NetIncomeLossAvailableToCommonStockholdersAfterAllocationofUndistributedEarningstoParticipatingSecuritiesBasic" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="bxp_NetLossForRedeemableInterestInPropertyPartnership" name="NetLossForRedeemableInterestInPropertyPartnership" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="bxp_NewYorkMember" name="NewYorkMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_NonCashPortionOfLossFromEarlyExtinguishmentOfDebt" name="NonCashPortionOfLossFromEarlyExtinguishmentOfDebt" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="bxp_NonQualifiedStockOptionsIssued" name="NonQualifiedStockOptionsIssued" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="bxp_NonQualifiedStockOptionsMember" name="NonQualifiedStockOptionsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_NoncontrollingInterestRedeemablePartnershipSeriesFourUnitsPreferredUnitsValue" name="NoncontrollingInterestRedeemablePartnershipSeriesFourUnitsPreferredUnitsValue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="bxp_NoncontrollingInterestRedeemablePartnershipUnitCommonUnitsValue" name="NoncontrollingInterestRedeemablePartnershipUnitCommonUnitsValue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="bxp_NoncontrollingInterestRedeemablePartnershipUnitsCommonUnitsLongTermIncentiveUnitsAtRedemptionValueSharesOutstanding" name="NoncontrollingInterestRedeemablePartnershipUnitsCommonUnitsLongTermIncentiveUnitsAtRedemptionValueSharesOutstanding" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant" />
  <xsd:element id="bxp_NoncontrollingInterestRedeemablePartnershipUnitsCommonUnitsSharesOutstanding" name="NoncontrollingInterestRedeemablePartnershipUnitsCommonUnitsSharesOutstanding" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant" />
  <xsd:element id="bxp_NoncontrollingInterestRedeemablePartnershipUnitsCommonUnitsValue" name="NoncontrollingInterestRedeemablePartnershipUnitsCommonUnitsValue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="bxp_NoncontrollingInterestRedeemablePropertyPartnershipAbstract" name="NoncontrollingInterestRedeemablePropertyPartnershipAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_NoncontrollingInterestUnearnedCompensation" name="NoncontrollingInterestUnearnedCompensation" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="bxp_NumberOfBuildingsUnderConstruction" name="NumberOfBuildingsUnderConstruction" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element id="bxp_NumberOfHoldersExercises" name="NumberOfHoldersExercises" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element id="bxp_NumberOfSeriesOfPreferredUnitsOutstanding" name="NumberOfSeriesOfPreferredUnitsOutstanding" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element id="bxp_NumberOfTiers" name="NumberOfTiers" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_NumberofJointVenturePartners" name="NumberofJointVenturePartners" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_Numberofextensions" name="Numberofextensions" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_Numberofinterestrateswapagreementsenteredinto" name="Numberofinterestrateswapagreementsenteredinto" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="bxp_OPUnitsandLTIPUnitsMember" name="OPUnitsandLTIPUnitsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="bxp_OfficePropertiesUnderConstructionMember" name="OfficePropertiesUnderConstructionMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="bxp_OfficeTechnicalPropertiesMember" name="OfficeTechnicalPropertiesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="bxp_OneTwoFiveWestFiftyFifthStreetVentureLlcMember" name="OneTwoFiveWestFiftyFifthStreetVentureLlcMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="bxp_OneTwoSixFiveMainOfficeJVLLCMember" name="OneTwoSixFiveMainOfficeJVLLCMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_OpUnitConversionRate" name="OpUnitConversionRate" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant" />
  <xsd:element id="bxp_OpUnitEquivalenceToCommonStock" name="OpUnitEquivalenceToCommonStock" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_OpUnits" name="OpUnits" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant" />
  <xsd:element id="bxp_OpUnitsForEachPreferredUnit" name="OpUnitsForEachPreferredUnit" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="bxp_OpUnitsMember" name="OpUnitsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_OpUnitsRedeemedForStockFromLtipUnits" name="OpUnitsRedeemedForStockFromLtipUnits" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_OperatingIncomeLossFromReportableSegments" name="OperatingIncomeLossFromReportableSegments" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="bxp_OperatingPartnershipGuaranteeToCoverLiabilitiesOfSubsidiary" name="OperatingPartnershipGuaranteeToCoverLiabilitiesOfSubsidiary" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="bxp_OperatingUnitsConversionRate" name="OperatingUnitsConversionRate" nillable="true" substitutionGroup="xbrli:item" type="num:perShareItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="bxp_OppUnitsTwoThousandAndTwelveMember" name="OppUnitsTwoThousandAndTwelveMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterestforPropertyPartnerships" name="OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterestforPropertyPartnerships" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="bxp_OtherPreferredStockDividendsAndAdjustmentsinshares" name="OtherPreferredStockDividendsAndAdjustmentsinshares" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_OtherPreferredStockDividendsAndAdjustmentspershare" name="OtherPreferredStockDividendsAndAdjustmentspershare" nillable="true" substitutionGroup="xbrli:item" type="num:perShareItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_OutperformanceAwardsLongTermIncentivePlanUnits" name="OutperformanceAwardsLongTermIncentivePlanUnits" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant" />
  <xsd:element id="bxp_OutperformanceAwardsLongTermIncentivePlanUnitsDistributionAsPercentageOfOpUnitDistributionPriorToMeasurementDate" name="OutperformanceAwardsLongTermIncentivePlanUnitsDistributionAsPercentageOfOpUnitDistributionPriorToMeasurementDate" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_Outperformanceawardsearned" name="Outperformanceawardsearned" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="bxp_Outsidemembersnotespayable" name="Outsidemembersnotespayable" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="bxp_Ownershipinterestsoldpercent" name="Ownershipinterestsoldpercent" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="bxp_ParcelsOfUndevelopedLand" name="ParcelsOfUndevelopedLand" nillable="true" substitutionGroup="xbrli:item" type="xbrli:decimalItemType" xbrli:periodType="instant" />
  <xsd:element id="bxp_PartnersJointVentureOwnershipPercentage" name="PartnersJointVentureOwnershipPercentage" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_Paymentsonrealestatetransaction" name="Paymentsonrealestatetransaction" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="bxp_PerOccurrenceLimitForNbcrCoverage" name="PerOccurrenceLimitForNbcrCoverage" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="bxp_PerOccurrenceLimitOfEarthQuakeInsuranceSanFrancisco" name="PerOccurrenceLimitOfEarthQuakeInsuranceSanFrancisco" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="bxp_PercentageOfTotalNetOperatingIncome" name="PercentageOfTotalNetOperatingIncome" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_PercentageOfTotalRentalExpenses" name="PercentageOfTotalRentalExpenses" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_PercentageOfTotalRevenue" name="PercentageOfTotalRevenue" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_PercentageToCauseSomeAwardsToBeEarnedEvenIfOnRelativeBasisItWouldNotResultInAnyEarnedAwards" name="PercentageToCauseSomeAwardsToBeEarnedEvenIfOnRelativeBasisItWouldNotResultInAnyEarnedAwards" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_PercentageofannualizedTSRforReductionofEarnedAwards" name="PercentageofannualizedTSRforReductionofEarnedAwards" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="bxp_PerformanceIndexAxis" name="PerformanceIndexAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="bxp_PerformanceIndexDomain" name="PerformanceIndexDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="bxp_PetersonWayMember" name="PetersonWayMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="bxp_PodiumDeveloperLLCMember" name="PodiumDeveloperLLCMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_Portionallocationtononcontrollinginterestbasedoncarryingvalueofthetotalequityofthepropertypriortothesale" name="Portionallocationtononcontrollinginterestbasedoncarryingvalueofthetotalequityofthepropertypriortothesale" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="bxp_PortionofBuildingLeasedpercentage" name="PortionofBuildingLeasedpercentage" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="bxp_Portionofpartnersequitythatcanbefundedbythecompany" name="Portionofpartnersequitythatcanbefundedbythecompany" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_Portionoftotalcostspartnercanrequirethecompanytofund" name="Portionoftotalcostspartnercanrequirethecompanytofund" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_PotentialAwardsEarned" name="PotentialAwardsEarned" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="bxp_Potentialadditonalpaymentstojointventurepartner" name="Potentialadditonalpaymentstojointventurepartner" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element id="bxp_PotentialmaximumamountofOutperformanceAwardsearnedpercent" name="PotentialmaximumamountofOutperformanceAwardsearnedpercent" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_PreferredCumulativeRedeemableStockIssuedDuringPeriodValueNewIssues" name="PreferredCumulativeRedeemableStockIssuedDuringPeriodValueNewIssues" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="bxp_PreferredUnitsIssuedInConnectionWithAcquisitionOfRealEstate" name="PreferredUnitsIssuedInConnectionWithAcquisitionOfRealEstate" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="bxp_PreferredUnitsLiquidationPreference" name="PreferredUnitsLiquidationPreference" nillable="true" substitutionGroup="xbrli:item" type="num:perShareItemType" xbrli:periodType="instant" />
  <xsd:element id="bxp_PreferredUnitsLiquidationPreferencePercentage" name="PreferredUnitsLiquidationPreferencePercentage" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_Proceedsfromrealestatetransaction" name="Proceedsfromrealestatetransaction" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="bxp_Proceedsfromsaleofaninterestinarealestateasset" name="Proceedsfromsaleofaninterestinarealestateasset" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="bxp_ProgramTriggerCoinsurance" name="ProgramTriggerCoinsurance" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_ProgramTriggerValue" name="ProgramTriggerValue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="bxp_PropertiesUnderConstructionMember" name="PropertiesUnderConstructionMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="bxp_PropertyPartnershipsMember" name="PropertyPartnershipsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_RatioOfDepositorySharesToSharesOfSeriesBPreferredStock" name="RatioOfDepositorySharesToSharesOfSeriesBPreferredStock" nillable="true" substitutionGroup="xbrli:item" type="xbrli:decimalItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="bxp_RbpJointVentureLlcMember" name="RbpJointVentureLlcMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_RecentAccountingPronouncementPolicyTextBlock" name="RecentAccountingPronouncementPolicyTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="bxp_RecentAccountingPronouncementsAbstract" name="RecentAccountingPronouncementsAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_RedeemableCommonUnits" name="RedeemableCommonUnits" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="bxp_RedeemablePreferredUnitsMember" name="RedeemablePreferredUnitsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_RedemptionOfOpUnitsIssuedOnConversionOfLtipUnits" name="RedemptionOfOpUnitsIssuedOnConversionOfLtipUnits" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="bxp_RedemptionYearTwoThousandFourteenMember" name="RedemptionYearTwoThousandFourteenMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_RedemptionofSeriesFourPreferredUnits" name="RedemptionofSeriesFourPreferredUnits" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="bxp_Redemptionofredeemablepreferredunits" name="Redemptionofredeemablepreferredunits" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="bxp_RentalExpensesClassOffice" name="RentalExpensesClassOffice" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="bxp_RentalExpensesOperatingExpensesTotal" name="RentalExpensesOperatingExpensesTotal" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="bxp_RentalExpensesResidential" name="RentalExpensesResidential" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="bxp_RentalRevenueClassOffice" name="RentalRevenueClassOffice" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="bxp_RentalRevenueResidential" name="RentalRevenueResidential" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="bxp_RentalRevenueTotal" name="RentalRevenueTotal" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="bxp_ResidentialPropertiesUnderConstructionMember" name="ResidentialPropertiesUnderConstructionMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_RestrictionOnRedemption" name="RestrictionOnRedemption" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_RestrictionOnRedemptionOfOpUnitsFromDateOfIssuanceInYears" name="RestrictionOnRedemptionOfOpUnitsFromDateOfIssuanceInYears" nillable="true" substitutionGroup="xbrli:item" type="xbrli:positiveIntegerItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="bxp_RetailPropertiesMember" name="RetailPropertiesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="bxp_RetailPropertiesUnderConstructionMember" name="RetailPropertiesUnderConstructionMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_SalePriceOfSoldProperty" name="SalePriceOfSoldProperty" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="bxp_SanFranciscoMember" name="SanFranciscoMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_ScheduleOfBalanceSheetsOfUnconsolidatedJointVenturesTextBlock" name="ScheduleOfBalanceSheetsOfUnconsolidatedJointVenturesTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_ScheduleOfNoncontrollingInterestCommonUnitsTableTextBlock" name="ScheduleOfNoncontrollingInterestCommonUnitsTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_ScheduleOfNoncontrollingInterestPropertyPartnershipsTableTextBlock" name="ScheduleOfNoncontrollingInterestPropertyPartnershipsTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_ScheduleOfRedeemableInterestInPropertyPartnershipsTableTextBlock" name="ScheduleOfRedeemableInterestInPropertyPartnershipsTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_ScheduleOfRedeemablePreferredUnitsOfOperatingPartnershipTableTextBlock" name="ScheduleOfRedeemablePreferredUnitsOfOperatingPartnershipTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_ScheduleOfSeniorNotesTableTextBlock" name="ScheduleOfSeniorNotesTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_ScheduleOfStatementsOfOperationsOfUnconsolidatedJointVenturesTextBock" name="ScheduleOfStatementsOfOperationsOfUnconsolidatedJointVenturesTextBock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_SeniorNotesPricing" name="SeniorNotesPricing" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_SeniorNotesTextBlock" name="SeniorNotesTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="bxp_SeriesBCumulativeRedeemablePreferredStockUnitMember" name="SeriesBCumulativeRedeemablePreferredStockUnitMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_SeriesBDividendRatePercentage" name="SeriesBDividendRatePercentage" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="bxp_SeriesBPreferredUnitsMember" name="SeriesBPreferredUnitsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_SeriesFourPreferredUnits" name="SeriesFourPreferredUnits" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant" />
  <xsd:element id="bxp_SeriesFourPreferredUnitsElectedtoRedeem" name="SeriesFourPreferredUnitsElectedtoRedeem" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="bxp_SeriesFourPreferredUnitsMember" name="SeriesFourPreferredUnitsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_SeriesFourPreferredUnitsRedeemed" name="SeriesFourPreferredUnitsRedeemed" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant" />
  <xsd:element id="bxp_SeriesFourPreferredUnitsReleasedfromEscrow" name="SeriesFourPreferredUnitsReleasedfromEscrow" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant" />
  <xsd:element id="bxp_SeriesTwoPreferredUnits" name="SeriesTwoPreferredUnits" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="bxp_SeriesTwoPreferredUnitsMember" name="SeriesTwoPreferredUnitsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_SeriesTwoPreferredUnitsOnConvertedBasis" name="SeriesTwoPreferredUnitsOnConvertedBasis" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant" />
  <xsd:element id="bxp_SeriesTwoPreferredUnitsRedemptionPrice" name="SeriesTwoPreferredUnitsRedemptionPrice" nillable="true" substitutionGroup="xbrli:item" type="num:perShareItemType" xbrli:periodType="instant" />
  <xsd:element id="bxp_Seriesfourpreferredunitsannualdividendpayablerate" name="Seriesfourpreferredunitsannualdividendpayablerate" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="bxp_SevenSixSevenVentureLlcMember" name="SevenSixSevenVentureLlcMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="bxp_SevenYearUnsecuredSeniorNotesThreePointEightFiveThreePercentMember" name="SevenYearUnsecuredSeniorNotesThreePointEightFiveThreePercentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="bxp_SevensixsevenFifthPartnersLLCMember" name="SevensixsevenFifthPartnersLLCMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="bxp_SixZeroOneLexingtonAvenueMember" name="SixZeroOneLexingtonAvenueMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="bxp_SpecialdividendMember" name="SpecialdividendMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_Specialdividenddistributionpersharecommonunitamount" name="Specialdividenddistributionpersharecommonunitamount" nillable="true" substitutionGroup="xbrli:item" type="num:perShareItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="bxp_SquareFourZeroSevenLimitedPartnershipMember" name="SquareFourZeroSevenLimitedPartnershipMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_StockBasedCompensationAndExchangeableSeniorNotesShares" name="StockBasedCompensationAndExchangeableSeniorNotesShares" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="bxp_StockOptionAndIncentivePlanAndStockRepurchasePlanAxis" name="StockOptionAndIncentivePlanAndStockRepurchasePlanAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="bxp_StockOptionAndIncentivePlanAndStockRepurchasePlanDomain" name="StockOptionAndIncentivePlanAndStockRepurchasePlanDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="bxp_StockOptionaNdIncentivePlanAbstract" name="StockOptionaNdIncentivePlanAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="bxp_StockholdersEquityPartnersCapitalAbstract" name="StockholdersEquityPartnersCapitalAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="bxp_SummaryOfSignificantAccountingPoliciesLineItems" name="SummaryOfSignificantAccountingPoliciesLineItems" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="bxp_SummaryOfSignificantAccountingPoliciesTable" name="SummaryOfSignificantAccountingPoliciesTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_TSRMeasurementYears" name="TSRMeasurementYears" nillable="true" substitutionGroup="xbrli:item" type="xbrli:positiveIntegerItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="bxp_TargetMember" name="TargetMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_TemporaryEquityCarryingAmountRedeemableInterestInPropertyPartnerships" name="TemporaryEquityCarryingAmountRedeemableInterestInPropertyPartnerships" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="bxp_TenYearUnsecuredSeniorNotesFivePointNineSixSevenPercentMember" name="TenYearUnsecuredSeniorNotesFivePointNineSixSevenPercentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="bxp_TenYearUnsecuredSeniorNotesFivePointSevenZeroEightPercentMember" name="TenYearUnsecuredSeniorNotesFivePointSevenZeroEightPercentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="bxp_TenYearUnsecuredSeniorNotesFourPointTwoEightNinePercentMember" name="TenYearUnsecuredSeniorNotesFourPointTwoEightNinePercentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="bxp_TenandHalfYearUnsecuredSeniorNotesThreePointNineOneSixPercentMember" name="TenandHalfYearUnsecuredSeniorNotesThreePointNineOneSixPercentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="bxp_TenandHalfYearUnsecuredSeniorNotesThreePointTwoSevenNinePercentMember" name="TenandHalfYearUnsecuredSeniorNotesThreePointTwoSevenNinePercentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_TenantLeasingCosts" name="TenantLeasingCosts" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="bxp_TenyearunsecuredseniornotethreepointsevensixsixpercentMember" name="TenyearunsecuredseniornotethreepointsevensixsixpercentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="bxp_TerminatedleaseattwofiftyWestfiftyfifthStreetinNYCMember" name="TerminatedleaseattwofiftyWestfiftyfifthStreetinNYCMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_Termofanticipatedmortgageloaninyears" name="Termofanticipatedmortgageloaninyears" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="bxp_ThresholdMember" name="ThresholdMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="bxp_TotalOfficePropertiesMember" name="TotalOfficePropertiesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_Totaldebtrecordeduponconsolidation" name="Totaldebtrecordeduponconsolidation" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="bxp_TransactionCostsExpensed" name="TransactionCostsExpensed" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="bxp_TwoGctVentureLlcMember" name="TwoGctVentureLlcMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="bxp_TwoHundredClarendonStreetMember" name="TwoHundredClarendonStreetMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_TwoThousandThirteenMYLTIPUnitsForfeited" name="TwoThousandThirteenMYLTIPUnitsForfeited" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant" />
  <xsd:element id="bxp_TwoThousandTwelveOPPUnitsForfeited" name="TwoThousandTwelveOPPUnitsForfeited" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_TwothousandfifteenMYLTIPS" name="TwothousandfifteenMYLTIPS" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant" />
  <xsd:element id="bxp_TwothousandfourteenMYLTIP" name="TwothousandfourteenMYLTIP" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant" />
  <xsd:element id="bxp_TwothousandsixteenMYLTIP" name="TwothousandsixteenMYLTIP" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="bxp_UnconsolidatedJointVenturesMember" name="UnconsolidatedJointVenturesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="bxp_UnsecuredSeniorNotesAbstract" name="UnsecuredSeniorNotesAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="bxp_UnvestedTwoThousandTwelveOPPUnitsTwoThousandThirteenmFourteenFifteenandsixteenMYLTIPUnitsMember" name="UnvestedTwoThousandTwelveOPPUnitsTwoThousandThirteenmFourteenFifteenandsixteenMYLTIPUnitsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_ValueOfLtipUnitsIssued" name="ValueOfLtipUnitsIssued" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="bxp_ValueOfMyltipAwards" name="ValueOfMyltipAwards" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="bxp_VestingAnnualInstallments" name="VestingAnnualInstallments" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_VestingDate" name="VestingDate" nillable="true" substitutionGroup="xbrli:item" type="xbrli:dateItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_VestingPercentage" name="VestingPercentage" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="bxp_VestingPeriodAxis" name="VestingPeriodAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="bxp_VestingPeriodDomain" name="VestingPeriodDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="bxp_WashingtonDCMember" name="WashingtonDCMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_WeightedAverageNumberOfSharesOutstandingAfterAllocationofUndistributedEarningstoParticipatingSecuritiesBasicinshares" name="WeightedAverageNumberOfSharesOutstandingAfterAllocationofUndistributedEarningstoParticipatingSecuritiesBasicinshares" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_WeightedAveragePerUnitFairValue" name="WeightedAveragePerUnitFairValue" nillable="true" substitutionGroup="xbrli:item" type="num:perShareItemType" xbrli:periodType="instant" />
  <xsd:element id="bxp_WeightedPercentageofIndexUsedtoComparetoTSR" name="WeightedPercentageofIndexUsedtoComparetoTSR" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="bxp_Workingcapitalrecordeduponconsolidation" name="Workingcapitalrecordeduponconsolidation" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="bxp_WpProjectDeveloperLlcMember" name="WpProjectDeveloperLlcMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
</xsd:schema>
