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  <xs:element id="cbre_CostAndExpensesExcludingGainOnDispositionOfRealEstateAssets" abstract="false" name="CostAndExpensesExcludingGainOnDispositionOfRealEstateAssets" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="cbre_UnrecognizedTaxBenefitsAdditionalIncomeTaxPenaltiesAndInterestExpense" abstract="false" name="UnrecognizedTaxBenefitsAdditionalIncomeTaxPenaltiesAndInterestExpense" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cbre_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsWithheldForPaymentOfTaxes" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsWithheldForPaymentOfTaxes" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
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  <xs:element id="cbre_SublimitBorrowingAgreementMember" abstract="true" name="SublimitBorrowingAgreementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cbre_OperatingAdministrativeAndOtherExpenses" abstract="false" name="OperatingAdministrativeAndOtherExpenses" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="cbre_ProfessionalFeesAndOtherRestructuringExpensesMember" abstract="true" name="ProfessionalFeesAndOtherRestructuringExpensesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cbre_TurnerTownsendHoldingsLimitedMember" abstract="true" name="TurnerTownsendHoldingsLimitedMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cbre_TwoThousandSeventeenStockIncentivePlanMember" abstract="true" name="TwoThousandSeventeenStockIncentivePlanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cbre_NetIncreaseDecreaseInMortgageServicingRightsIncludedInWarehouseReceivables" abstract="false" name="NetIncreaseDecreaseInMortgageServicingRightsIncludedInWarehouseReceivables" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cbre_NumberOfAcquisitionsCompleted" abstract="false" name="NumberOfAcquisitionsCompleted" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="cbre_PaymentsForRecapitalization" abstract="false" name="PaymentsForRecapitalization" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cbre_EmployeesOtherThanExecutiveOfficersMember" abstract="true" name="EmployeesOtherThanExecutiveOfficersMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cbre_FundedLoanSubjectToLossSharingArrangementsMember" abstract="true" name="FundedLoanSubjectToLossSharingArrangementsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cbre_ValuationAllowanceForeignCurrencyTranslationAndTaxRateChangesMember" abstract="true" name="ValuationAllowanceForeignCurrencyTranslationAndTaxRateChangesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cbre_SeniorSecuredTermLoanMember" abstract="true" name="SeniorSecuredTermLoanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cbre_OtherComprehensiveIncomeDefinedBenefitPlansTaxes" abstract="false" name="OtherComprehensiveIncomeDefinedBenefitPlansTaxes" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cbre_EquityLineItems" abstract="true" name="EquityLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="cbre_StockRepurchaseProgramAdditionalAuthorizedAmount" abstract="false" name="StockRepurchaseProgramAdditionalAuthorizedAmount" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cbre_InvestmentInWarrantsAndShares" abstract="false" name="InvestmentInWarrantsAndShares" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cbre_PercentageOfMaximumOriginalPrincipalAmountLoanLoss" abstract="false" name="PercentageOfMaximumOriginalPrincipalAmountLoanLoss" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="cbre_PropertyManagementMember" abstract="true" name="PropertyManagementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cbre_CorporateAndReconcilingItemsMember" abstract="true" name="CorporateAndReconcilingItemsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cbre_SeniorTermLoans" abstract="false" name="SeniorTermLoans" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cbre_AdvisoryServicesSegmentMember" abstract="true" name="AdvisoryServicesSegmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cbre_CashPaidForAmountsIncludedInMeasurementOfLeaseLiabilitiesAbstract" abstract="true" name="CashPaidForAmountsIncludedInMeasurementOfLeaseLiabilitiesAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="cbre_FiniteLivedIntangibleAssetsAccumulatedAmortizationAndForeignCurrencyTranslation" abstract="false" name="FiniteLivedIntangibleAssetsAccumulatedAmortizationAndForeignCurrencyTranslation" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cbre_TwoThousandTwelveStockIncentivePlanMember" abstract="true" name="TwoThousandTwelveStockIncentivePlanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cbre_RealEstateDevelopmentServicesMember" abstract="true" name="RealEstateDevelopmentServicesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cbre_ScheduleOfSupplementalBalanceSheetInformationRelatedToLeasesTableTextBlock" abstract="false" name="ScheduleOfSupplementalBalanceSheetInformationRelatedToLeasesTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="cbre_OtherCommitmentCapitalInvestmentInConsolidatedProjects" abstract="false" name="OtherCommitmentCapitalInvestmentInConsolidatedProjects" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cbre_DeferredTaxAssetsOperatingLeaseLiabilities" abstract="false" name="DeferredTaxAssetsOperatingLeaseLiabilities" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cbre_BusinessAcquisitionsIncrementalAmortizationExpense" abstract="false" name="BusinessAcquisitionsIncrementalAmortizationExpense" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cbre_BusinessCombinationConsiderationTransferredLiabilitiesIncurredGross" abstract="false" name="BusinessCombinationConsiderationTransferredLiabilitiesIncurredGross" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cbre_LeasesExcludingAssetsUnderConstructionMember" abstract="true" name="LeasesExcludingAssetsUnderConstructionMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cbre_AltusPowerAlignmentSharesMember" abstract="true" name="AltusPowerAlignmentSharesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cbre_ScheduleOfSupplementalCashFlowInformationAndNonCashActivityRelatedToOperatingLeasesTableTextBlock" abstract="false" name="ScheduleOfSupplementalCashFlowInformationAndNonCashActivityRelatedToOperatingLeasesTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="cbre_FiduciaryFundsPolicyPolicyTextBlock" abstract="false" name="FiduciaryFundsPolicyPolicyTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="cbre_One90YearMember" abstract="true" name="One90YearMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cbre_CanadianAustralianAndNewZealandSubsidiariesMember" abstract="true" name="CanadianAustralianAndNewZealandSubsidiariesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cbre_ShareBasedCompensationArrangementByShareBasedPaymentPercentageOfTargetRestrictedStockUnit" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentPercentageOfTargetRestrictedStockUnit" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="cbre_ProceedsFromTrustAccountSpecialPurposeAcquisitionCompany" abstract="false" name="ProceedsFromTrustAccountSpecialPurposeAcquisitionCompany" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cbre_WarehouseReceivableMember" abstract="true" name="WarehouseReceivableMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cbre_PercentageOfLongTermDebtAvailableForRedemption" abstract="false" name="PercentageOfLongTermDebtAvailableForRedemption" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="cbre_AltusPowerWarrantsMember" abstract="true" name="AltusPowerWarrantsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cbre_LeaseAxis" abstract="true" name="LeaseAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="cbre_BusinessAcquisitionsIncrementalDepreciationExpense" abstract="false" name="BusinessAcquisitionsIncrementalDepreciationExpense" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cbre_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesCompensationAndEmployeeBenefitsPayable" abstract="false" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesCompensationAndEmployeeBenefitsPayable" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cbre_FannieMaeASAPProgramMember" abstract="true" name="FannieMaeASAPProgramMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cbre_FacilitiesManagementMember" abstract="true" name="FacilitiesManagementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cbre_MultifamilySmallBalanceLoanProgramMember" abstract="true" name="MultifamilySmallBalanceLoanProgramMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cbre_BonusExpense" abstract="false" name="BonusExpense" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cbre_BankOfAmericaMember" abstract="true" name="BankOfAmericaMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cbre_CreditSpreadAdjustmentRate" abstract="false" name="CreditSpreadAdjustmentRate" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="cbre_BusinessCombinationNoncontrollingInterestAcquired" abstract="false" name="BusinessCombinationNoncontrollingInterestAcquired" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cbre_Two99YearMember" abstract="true" name="Two99YearMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cbre_LoanLossSharingReserve" abstract="false" name="LoanLossSharingReserve" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cbre_EquityMethodSummarizedFinancialInformationAssetsLiabilitiesMinorityInterest" abstract="false" name="EquityMethodSummarizedFinancialInformationAssetsLiabilitiesMinorityInterest" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cbre_OtherAssetsMeasurementInput" abstract="false" name="OtherAssetsMeasurementInput" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:decimalItemType"/>
  <xs:element id="cbre_MaximumLeverageRatioOfDebtToEarningsBeforeInterestTaxDepreciationAndAmortizationExpressedInPercentage" abstract="false" name="MaximumLeverageRatioOfDebtToEarningsBeforeInterestTaxDepreciationAndAmortizationExpressedInPercentage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="cbre_RealEstateAssetsUnderDevelopmentAndHeldForInvestment" abstract="false" name="RealEstateAssetsUnderDevelopmentAndHeldForInvestment" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cbre_PerformanceBasedVestingMember" abstract="true" name="PerformanceBasedVestingMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cbre_LongTermDebtPercentageSpreadOverFixedInterestRate" abstract="false" name="LongTermDebtPercentageSpreadOverFixedInterestRate" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="cbre_ReductionInRedeemableNoncontrollingInterestSpecialPurposeAcquisitionCompany" abstract="false" name="ReductionInRedeemableNoncontrollingInterestSpecialPurposeAcquisitionCompany" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cbre_ImpactOfFairValueAdjustmentsToAssetsAcquiredInBusiness" abstract="false" name="ImpactOfFairValueAdjustmentsToAssetsAcquiredInBusiness" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cbre_RealEstateInvestmentsSegmentMember" abstract="true" name="RealEstateInvestmentsSegmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cbre_RealEstateInvestmentsMaximumEquityInRealEstateInvestmentPercent" abstract="false" name="RealEstateInvestmentsMaximumEquityInRealEstateInvestmentPercent" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="cbre_BusinessCombinationGoodwillTableTableTextBlock" abstract="false" name="BusinessCombinationGoodwillTableTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="cbre_SummaryOfSignificantAccountingPoliciesTable" abstract="true" name="SummaryOfSignificantAccountingPoliciesTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="cbre_IndefiniteLivedIntangibleAssetsAccumulatedAmortizationAndForeignCurrencyTranslation" abstract="false" name="IndefiniteLivedIntangibleAssetsAccumulatedAmortizationAndForeignCurrencyTranslation" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cbre_AdvisorySalesMember" abstract="true" name="AdvisorySalesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cbre_DepreciationAndAmortizationMember" abstract="true" name="DepreciationAndAmortizationMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cbre_DepreciationExpenseMember" abstract="true" name="DepreciationExpenseMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cbre_NumberOfTradingTermRequiredForPurposesOfMeasuringShareholderReturnBasedOnAverageClosingPriceOfCommonStockImmediatelyPrecedingGrantDate" abstract="false" name="NumberOfTradingTermRequiredForPurposesOfMeasuringShareholderReturnBasedOnAverageClosingPriceOfCommonStockImmediatelyPrecedingGrantDate" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="cbre_BusinessAcquisitionProFormaEarningsPerShareBasicAbstract" abstract="true" name="BusinessAcquisitionProFormaEarningsPerShareBasicAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="cbre_DefinedContributionPlanMinimumAnnualContributionsPerEmployeePercent" abstract="false" name="DefinedContributionPlanMinimumAnnualContributionsPerEmployeePercent" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
</xs:schema>
