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  <xsd:element abstract="true" id="cxp_ColumbiaPropertyTrustAdvisoryServicesandColumbiaPropertyTrustServicesMember" name="ColumbiaPropertyTrustAdvisoryServicesandColumbiaPropertyTrustServicesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cxp_ColumbiaPropertyTrustOpMember" name="ColumbiaPropertyTrustOpMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cxp_ColumbiaTaxableREITSubsidiaryMember" name="ColumbiaTaxableREITSubsidiaryMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="cxp_CommonStockIssuedValueNetofSharesforTaxWithholdings" name="CommonStockIssuedValueNetofSharesforTaxWithholdings" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="cxp_ConsolidationLessthanWhollyOwnedSubsidiaryParentOwnershipInterestPercent" name="ConsolidationLessthanWhollyOwnedSubsidiaryParentOwnershipInterestPercent" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="cxp_ConstructionFeesMember" name="ConstructionFeesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cxp_ConsultingFeesMember" name="ConsultingFeesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cxp_CorridorsIiiMember" name="CorridorsIiiMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cxp_CranberryWoodsDriveMember" name="CranberryWoodsDriveMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cxp_CreditSuisseMember" name="CreditSuisseMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="cxp_DebtCovenantDebtServiceCoverageRatio" name="DebtCovenantDebtServiceCoverageRatio" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="cxp_DebtCovenantDebtToTotalAssetRatio" name="DebtCovenantDebtToTotalAssetRatio" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="cxp_DebtCovenantSecuredDebtToTotalAssetRatio" name="DebtCovenantSecuredDebtToTotalAssetRatio" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="cxp_DebtCovenantSecuredRecourseDebtToTotalAssetRatio" name="DebtCovenantSecuredRecourseDebtToTotalAssetRatio" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="cxp_DebtCovenantTotalUnencumberedAssetToTotalUnsecuredDebtRatio" name="DebtCovenantTotalUnencumberedAssetToTotalUnsecuredDebtRatio" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
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  <xsd:element id="cxp_DebtInstrumentDiscountRateAtIssuanceOfFaceValue" name="DebtInstrumentDiscountRateAtIssuanceOfFaceValue" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
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  <xsd:element id="cxp_DebtInstrumentNumberofBorrowingIncreaseOption" name="DebtInstrumentNumberofBorrowingIncreaseOption" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element id="cxp_DebtInstrumentTermYears" name="DebtInstrumentTermYears" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element id="cxp_DepreciationContinuingOperations" name="DepreciationContinuingOperations" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cxp_DirectorStockOptionPlanMember" name="DirectorStockOptionPlanMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="cxp_DisposalGroupIncludingDiscontinuedOperationAmortization" name="DisposalGroupIncludingDiscontinuedOperationAmortization" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="cxp_DisposalGroupIncludingDiscontinuedOperationAssetAndPropertyManagementFees" name="DisposalGroupIncludingDiscontinuedOperationAssetAndPropertyManagementFees" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
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  <xsd:element id="cxp_DisposalGroupIncludingDiscontinuedOperationInterestAndOtherIncome" name="DisposalGroupIncludingDiscontinuedOperationInterestAndOtherIncome" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="cxp_DisposalGroupIncludingDiscontinuedOperationOtherPropertyRelatedRevenue" name="DisposalGroupIncludingDiscontinuedOperationOtherPropertyRelatedRevenue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
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  <xsd:element id="cxp_DistributionsPaidToStockholdersAndReinvestedInSharesOfOurCommonStock" name="DistributionsPaidToStockholdersAndReinvestedInSharesOfOurCommonStock" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
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  <xsd:element abstract="true" id="cxp_EightyMStreetMember" name="EightyMStreetMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
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  <xsd:element abstract="true" id="cxp_EmployeesMember" name="EmployeesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
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  <xsd:element abstract="true" id="cxp_FourHundredFiftyMillionTermLoanMember" name="FourHundredFiftyMillionTermLoanMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="cxp_GainLossOnExtinguishmentofDebtContinuingOperations" name="GainLossOnExtinguishmentofDebtContinuingOperations" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cxp_GoodbySilversteinMember" name="GoodbySilversteinMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cxp_HighlandLandmarkIiiMember" name="HighlandLandmarkIiiMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cxp_HoustonEnergyCenterIMember" name="HoustonEnergyCenterIMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="cxp_ImpairmentofRealEstateContinuingandDiscontinuedOperations" name="ImpairmentofRealEstateContinuingandDiscontinuedOperations" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="cxp_IncomeLossfromContinuingOperationsBeforeGainorLossonSaleofProperties" name="IncomeLossfromContinuingOperationsBeforeGainorLossonSaleofProperties" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
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  <xsd:element id="cxp_InterestAccruingToNotesPayable" name="InterestAccruingToNotesPayable" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cxp_InternationalFinancialTowerMember" name="InternationalFinancialTowerMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="cxp_InvestmentBuildingAndBuildingImprovementsNet" name="InvestmentBuildingAndBuildingImprovementsNet" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="cxp_InvestmentinDevelopmentAuthorityBonds" name="InvestmentinDevelopmentAuthorityBonds" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="cxp_InvestmentsInDevelopmentAuthorityBondsAndObligationsUnderCapitalLeasesPolicyTextBlock" name="InvestmentsInDevelopmentAuthorityBondsAndObligationsUnderCapitalLeasesPolicyTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cxp_InvestorServicesMember" name="InvestorServicesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cxp_JPMorganChaseCreditFacilityAmendedMember" name="JPMorganChaseCreditFacilityAmendedMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
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  <xsd:element abstract="true" id="cxp_LandlinkLtdMember" name="LandlinkLtdMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cxp_LeaseRevenueMember" name="LeaseRevenueMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="cxp_LeasedOfficeSpaceOfOwnedPropertiesPercent" name="LeasedOfficeSpaceOfOwnedPropertiesPercent" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="cxp_LegalIndustryMember" name="LegalIndustryMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cxp_LenoxParkBuildingsMember" name="LenoxParkBuildingsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
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  <xsd:element id="cxp_LineOfCreditAndNotesPayableFairValueDisclosure" name="LineOfCreditAndNotesPayableFairValueDisclosure" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
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  <xsd:element id="cxp_LineofCreditFacilityMaximumBorrowingIncreaseperOption" name="LineofCreditFacilityMaximumBorrowingIncreaseperOption" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
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  <xsd:element abstract="true" id="cxp_MarketSquareBuildingsMember" name="MarketSquareBuildingsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cxp_MarketSquareBuildingsMortgageNoteMember" name="MarketSquareBuildingsMortgageNoteMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="cxp_NetIncomeLossAttributableToParentTaxBasis" name="NetIncomeLossAttributableToParentTaxBasis" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
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  <xsd:element abstract="true" id="cxp_NineTechnologyDriveBuildingMember" name="NineTechnologyDriveBuildingMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
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  <xsd:element id="cxp_NoncashorPartNoncashAcquisitionDerivativeLiabilitiesAssumed" name="NoncashorPartNoncashAcquisitionDerivativeLiabilitiesAssumed" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cxp_NorthernNewJerseyMember" name="NorthernNewJerseyMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="cxp_NumberOfAssetsMarketedForSale" name="NumberOfAssetsMarketedForSale" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element id="cxp_NumberOfBuildingsOwned" name="NumberOfBuildingsOwned" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="cxp_NumberOfPropertiesMember" name="NumberOfPropertiesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="cxp_NumberofRealEstatePropertiesAcquired" name="NumberofRealEstatePropertiesAcquired" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element id="cxp_NumberofRealEstatePropertiesSold" name="NumberofRealEstatePropertiesSold" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element id="cxp_NumberofTenants" name="NumberofTenants" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="cxp_October12014Member" name="October12014Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="cxp_OffMarketLeaseUnfavorableAccumulatedAmortization" name="OffMarketLeaseUnfavorableAccumulatedAmortization" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="cxp_OneGlenlakeBuildingMortgageNoteMember" name="OneGlenlakeBuildingMortgageNoteMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cxp_OneGlenlakeParkwayMember" name="OneGlenlakeParkwayMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cxp_OneHunderedEightyEastOneHundredSouthMember" name="OneHunderedEightyEastOneHundredSouthMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cxp_OneHundredEastPrattMember" name="OneHundredEastPrattMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cxp_OneHundredEastPrattStreetBuildingMortgageNoteMember" name="OneHundredEastPrattStreetBuildingMortgageNoteMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cxp_OneHundredEightyEastOneHundredSouthMember" name="OneHundredEightyEastOneHundredSouthMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cxp_OneHundredEightyParkAvenueMember" name="OneHundredEightyParkAvenueMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cxp_OneHundredTwentyEagleRockMember" name="OneHundredTwentyEagleRockMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cxp_OneMonthLIBORMember" name="OneMonthLIBORMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cxp_OneThousandFiveHundredEightyWestNurseryRoadMember" name="OneThousandFiveHundredEightyWestNurseryRoadMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cxp_OtherOfferingExpensesMember" name="OtherOfferingExpensesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="cxp_OtherSignificantNoncashTransactionsAccruedRedemptionsOfCommonStock" name="OtherSignificantNoncashTransactionsAccruedRedemptionsOfCommonStock" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="cxp_OtherSignificantNoncashTransactionsCapitalExpendituresIncurredButNotYetPaidAndDeferredLeasingCostsNoncash" name="OtherSignificantNoncashTransactionsCapitalExpendituresIncurredButNotYetPaidAndDeferredLeasingCostsNoncash" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="cxp_OwnershipPercentageWhollyOwnedSubsidiary" name="OwnershipPercentageWhollyOwnedSubsidiary" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="cxp_PasadenaCorporateParkMember" name="PasadenaCorporateParkMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="cxp_PaymentsToAcquireAndDevelopRealEstateAndLeaseAcquisitionCosts" name="PaymentsToAcquireAndDevelopRealEstateAndLeaseAcquisitionCosts" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="cxp_PaymentsforTenderOfferRedemptionsofCommonStock" name="PaymentsforTenderOfferRedemptionsofCommonStock" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="cxp_PrepaidExpensesAndOtherAssetsPolicyTextBlock" name="PrepaidExpensesAndOtherAssetsPolicyTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="cxp_ProceedsFromIssuanceOfCommonStockNetOfRedemptionsAndFees" name="ProceedsFromIssuanceOfCommonStockNetOfRedemptionsAndFees" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="cxp_ProceedsFromNotesPayableNetOfFinancingCosts" name="ProceedsFromNotesPayableNetOfFinancingCosts" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cxp_PropertyManagementFeesMember" name="PropertyManagementFeesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="cxp_RealEstateAccumulatedDepreciationOtherDeductionsIntangibleAssets" name="RealEstateAccumulatedDepreciationOtherDeductionsIntangibleAssets" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="cxp_RealEstateAccumulatedDepreciationOtherDeductionsTenantImprovements" name="RealEstateAccumulatedDepreciationOtherDeductionsTenantImprovements" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="cxp_RealEstateAndAccumulatedDepreciationAccumulatedDepreciationAndAmortization" name="RealEstateAndAccumulatedDepreciationAccumulatedDepreciationAndAmortization" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="cxp_RealEstateAndAccumulatedDepreciationInitialCostOfLandBuildingsAndImprovements" name="RealEstateAndAccumulatedDepreciationInitialCostOfLandBuildingsAndImprovements" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="cxp_RealEstateAndAccumulatedDepreciationOwnershipPercentage" name="RealEstateAndAccumulatedDepreciationOwnershipPercentage" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="cxp_RealEstateHeldForSaleNumberOfProperties" name="RealEstateHeldForSaleNumberOfProperties" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element id="cxp_RealEstateInvestmentPropertyAmounttobeDisposedof" name="RealEstateInvestmentPropertyAmounttobeDisposedof" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="cxp_RealEstateInvestmentPropertyNetBeforeRecognitionOfImpairmentLoss" name="RealEstateInvestmentPropertyNetBeforeRecognitionOfImpairmentLoss" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="cxp_RealEstateOwnershipPercentage" name="RealEstateOwnershipPercentage" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="cxp_RealEstateWriteDownOrReserveBuildingAndTenantImprovements" name="RealEstateWriteDownOrReserveBuildingAndTenantImprovements" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="cxp_RealEstateWriteDownOrReserveImpairment" name="RealEstateWriteDownOrReserveImpairment" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="cxp_RealEstateWriteDownOrReserveIntangibleAssets" name="RealEstateWriteDownOrReserveIntangibleAssets" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cxp_RedeemableCommonStockMember" name="RedeemableCommonStockMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="cxp_RedeemableCommonStockValue" name="RedeemableCommonStockValue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="cxp_RelatedPartyTransactionAmountPayableUnderAgreement" name="RelatedPartyTransactionAmountPayableUnderAgreement" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="cxp_RequirementToDistributeTaxableIncomePercent" name="RequirementToDistributeTaxableIncomePercent" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="cxp_RobbinsRoadPropertyMember" name="RobbinsRoadPropertyMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cxp_SanFranciscoMember" name="SanFranciscoMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cxp_SantanCorporateCenterMember" name="SantanCorporateCenterMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cxp_SantanCorporateCenterMortgageNotesMember" name="SantanCorporateCenterMortgageNotesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="cxp_ScheduleOfDistributionsToCommonStockholdersTableTextBlock" name="ScheduleOfDistributionsToCommonStockholdersTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="cxp_ScheduleOfFutureMinimumPaymentsReceivableForOperatingLeasesTableTextBlock" name="ScheduleOfFutureMinimumPaymentsReceivableForOperatingLeasesTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="cxp_ScheduleOfIncomeTaxBasisNetIncomeReconciliationTableTextBlock" name="ScheduleOfIncomeTaxBasisNetIncomeReconciliationTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="cxp_ScheduleOfIntangibleAssetsAndLiabilitiesTableTextBlock" name="ScheduleOfIntangibleAssetsAndLiabilitiesTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cxp_ScheduleOfLongTermAndShortTermDebtInstrumentsTableTable" name="ScheduleOfLongTermAndShortTermDebtInstrumentsTableTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="cxp_ScheduleOfRecognizedFairValueAdjustmentsForRealEstatePropertiesTableTextBlock" name="ScheduleOfRecognizedFairValueAdjustmentsForRealEstatePropertiesTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cxp_ScheduleOfSignificantAccountingPoliciesTable" name="ScheduleOfSignificantAccountingPoliciesTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cxp_September132013Member" name="September132013Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cxp_SevenDayLIBORMember" name="SevenDayLIBORMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="cxp_ShareBasedCompensationArrangementByShareBasedPaymentAwardMinimumExercisePriceInLieuOfFairMarketValuePrecedingAnnualStockholderMeeting" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardMinimumExercisePriceInLieuOfFairMarketValuePrecedingAnnualStockholderMeeting" nillable="true" substitutionGroup="xbrli:item" type="num:perShareItemType" xbrli:periodType="duration" />
  <xsd:element id="cxp_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAdditionalSharesExercisableUponVested" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAdditionalSharesExercisableUponVested" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="cxp_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAnnualExercisablePercent" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAnnualExercisablePercent" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="cxp_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAnnualStockholderMeeting" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAnnualStockholderMeeting" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant" />
  <xsd:element id="cxp_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsToPurchaseOnDateOfGrant" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsToPurchaseOnDateOfGrant" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant" />
  <xsd:element id="cxp_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsExpectedForfeitureRate" name="SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsExpectedForfeitureRate" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="cxp_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsExpectedtoVest" name="SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsExpectedtoVest" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant" />
  <xsd:element id="cxp_SharebasedCompensationArrangementbySharebasedPaymentAwardOptionsExpirationPeriod" name="SharebasedCompensationArrangementbySharebasedPaymentAwardOptionsExpirationPeriod" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cxp_SharebasedCompensationAwardTrancheFourMember" name="SharebasedCompensationAwardTrancheFourMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cxp_SignificantAccountingPoliciesLineItems" name="SignificantAccountingPoliciesLineItems" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cxp_SixMonthLIBORMember" name="SixMonthLIBORMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cxp_SouthJamaicaStreetMember" name="SouthJamaicaStreetMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cxp_SterlingCommerceMember" name="SterlingCommerceMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="cxp_TaxBasisNetIncomeLossReconciliationBadDebtExpense" name="TaxBasisNetIncomeLossReconciliationBadDebtExpense" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="cxp_TaxBasisNetIncomeLossReconciliationDepreciationAndAmortizationExpense" name="TaxBasisNetIncomeLossReconciliationDepreciationAndAmortizationExpense" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="cxp_TaxBasisNetIncomeLossReconciliationGainsOnSaleOfRealProperty" name="TaxBasisNetIncomeLossReconciliationGainsOnSaleOfRealProperty" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="cxp_TaxBasisNetIncomeLossReconciliationLossGainInterestRateSwaps" name="TaxBasisNetIncomeLossReconciliationLossGainInterestRateSwaps" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="cxp_TaxBasisNetIncomeLossReconciliationNetAmortizationOfLeaseIntangibles" name="TaxBasisNetIncomeLossReconciliationNetAmortizationOfLeaseIntangibles" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="cxp_TaxBasisNetIncomeLossReconciliationOtherExpenses" name="TaxBasisNetIncomeLossReconciliationOtherExpenses" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="cxp_TaxBasisNetIncomeLossReconciliationRentalIncomeAccrued" name="TaxBasisNetIncomeLossReconciliationRentalIncomeAccrued" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="cxp_TenantReimbursementsNettedAgainstAdministrativeReimbursements" name="TenantReimbursementsNettedAgainstAdministrativeReimbursements" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cxp_ThreeGlenlakeBuildingMember" name="ThreeGlenlakeBuildingMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cxp_ThreeHundredThirtyThreeMarketStreetBuildingMortgageNoteMember" name="ThreeHundredThirtyThreeMarketStreetBuildingMortgageNoteMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cxp_ThreeHundredThirtyThreeMarketStreetMember" name="ThreeHundredThirtyThreeMarketStreetMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cxp_ThreeHundredThirtyThreeSevenHundredSeventySevenRepublicDriveMember" name="ThreeHundredThirtyThreeSevenHundredSeventySevenRepublicDriveMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cxp_ThreeMonthLIBORMember" name="ThreeMonthLIBORMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cxp_TransitionServicesMember" name="TransitionServicesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cxp_TransitionalServicesAgreementMember" name="TransitionalServicesAgreementMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cxp_TwoHundredFifteenDiehlRoadBuildingMortgageNoteMember" name="TwoHundredFifteenDiehlRoadBuildingMortgageNoteMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cxp_TwoHundredFifteenDiehlRoadMember" name="TwoHundredFifteenDiehlRoadMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cxp_TwoHundredSixtyThreeShumanBoulevardMember" name="TwoHundredSixtyThreeShumanBoulevardMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cxp_TwoHundredSixtyThreeShumanBoulevardMortgageNoteMember" name="TwoHundredSixtyThreeShumanBoulevardMortgageNoteMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cxp_TwoHundredTwentyTwoEastFourtyFirstStreetMember" name="TwoHundredTwentyTwoEastFourtyFirstStreetMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cxp_TwoMonthLIBORMember" name="TwoMonthLIBORMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cxp_TwoThousandAndEighteenBondsPayableMember" name="TwoThousandAndEighteenBondsPayableMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cxp_UniversityCircleMember" name="UniversityCircleMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cxp_WellsRealEstateFundsMember" name="WellsRealEstateFundsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
</xsd:schema>


