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  <xs:element id="wpc_ReimbursableTenantExpense" abstract="false" name="ReimbursableTenantExpense" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wpc_AllocatedStockBasedCompensationExpenseExcludingRestructuringExpense" abstract="false" name="AllocatedStockBasedCompensationExpenseExcludingRestructuringExpense" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wpc_OperatingPropertyExpenses" abstract="false" name="OperatingPropertyExpenses" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wpc_MergerAndOtherExpensesOperating" abstract="false" name="MergerAndOtherExpensesOperating" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wpc_DeferredCompensationObligationMember" abstract="true" name="DeferredCompensationObligationMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wpc_NonCashAdjustmentToNoncontrollingInterests" abstract="false" name="NonCashAdjustmentToNoncontrollingInterests" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wpc_NonCashContributionsFromNoncontrollingInterests" abstract="false" name="NonCashContributionsFromNoncontrollingInterests" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wpc_RealizedGainLossOnForeignCurrencyTransactionsAndOther" abstract="false" name="RealizedGainLossOnForeignCurrencyTransactionsAndOther" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wpc_AmortizationOfRentRelatedIntangiblesAndDeferredRentalRevenue" abstract="false" name="AmortizationOfRentRelatedIntangiblesAndDeferredRentalRevenue" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wpc_ProceedsFromSalesOfNetInvestmentsInSalesTypeLeasesOperating" abstract="false" name="ProceedsFromSalesOfNetInvestmentsInSalesTypeLeasesOperating" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wpc_PaymentsToAcquireRealEstateUnderConstruction" abstract="false" name="PaymentsToAcquireRealEstateUnderConstruction" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wpc_ProceedsToVATRefundedConnectionWithAcquisitionOfRealEstate" abstract="false" name="ProceedsToVATRefundedConnectionWithAcquisitionOfRealEstate" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wpc_PaymentOfVATConnectionWithAcquisitionOfRealEstate" abstract="false" name="PaymentOfVATConnectionWithAcquisitionOfRealEstate" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wpc_CapitalContributionsToEquityMethodInvestments" abstract="false" name="CapitalContributionsToEquityMethodInvestments" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wpc_GoodwillAndIntangibleAssetsLiabilitiesDisclosureAbstract" abstract="true" name="GoodwillAndIntangibleAssetsLiabilitiesDisclosureAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="wpc_ScheduleOfBalancesDueToAndFromRelatedPartyTableTextBlock" abstract="false" name="ScheduleOfBalancesDueToAndFromRelatedPartyTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="wpc_RealEstateAcquiredTableTextBlock" abstract="false" name="RealEstateAcquiredTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="wpc_ScheduleOfRealEstateUnderConstructionTableTextBlock" abstract="false" name="ScheduleOfRealEstateUnderConstructionTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="wpc_CapitalLeasesNetInvestmentInDirectFinancingLeasesTableTextBlock" abstract="false" name="CapitalLeasesNetInvestmentInDirectFinancingLeasesTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="wpc_IncomeFromFinanceLeasesAndLoansReceivableTableTextBlock" abstract="false" name="IncomeFromFinanceLeasesAndLoansReceivableTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="wpc_ScheduleOfConstructionLoansTableTextBlock" abstract="false" name="ScheduleOfConstructionLoansTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="wpc_CapitalLeasesNetInvestmentInSaleTypeLeasesTableTextBlock" abstract="false" name="CapitalLeasesNetInvestmentInSaleTypeLeasesTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="wpc_ScheduleOfIntangibleAssetsLiabilitiesAndGoodwillTableTextBlock" abstract="false" name="ScheduleOfIntangibleAssetsLiabilitiesAndGoodwillTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="wpc_ScheduleOfOtherFinancialInstrumentsInCarryingValuesAndFairValuesTableTextBlock" abstract="false" name="ScheduleOfOtherFinancialInstrumentsInCarryingValuesAndFairValuesTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="wpc_ScheduleOfFairValueImpairmentChargesUsingUnobservableInputsNonrecurringBasisTableTextBlock" abstract="false" name="ScheduleOfFairValueImpairmentChargesUsingUnobservableInputsNonrecurringBasisTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="wpc_OperatingPropertiesMember" abstract="true" name="OperatingPropertiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wpc_StudentHousingPropertiesMember" abstract="true" name="StudentHousingPropertiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wpc_SelfStorageMember" abstract="true" name="SelfStorageMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wpc_OtherBusinessDisclosuresAbstract" abstract="true" name="OtherBusinessDisclosuresAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="wpc_NumberOfTenants" abstract="false" name="NumberOfTenants" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="wpc_OccupancyRate" abstract="false" name="OccupancyRate" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="wpc_NumberOfPropertiesSold" abstract="false" name="NumberOfPropertiesSold" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="wpc_EquityInvestmentsAxis" abstract="true" name="EquityInvestmentsAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="wpc_EquityInvestmentsDomain" abstract="true" name="EquityInvestmentsDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wpc_ManagedProgramsMember" abstract="true" name="ManagedProgramsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wpc_BasisOfConsolidationAbstract" abstract="true" name="BasisOfConsolidationAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="wpc_VariableInterestEntitiesCount" abstract="false" name="VariableInterestEntitiesCount" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="wpc_VariableInterestEntitiesConsolidatedCount" abstract="false" name="VariableInterestEntitiesConsolidatedCount" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="wpc_VariableInterestEntitiesUnconsolidatedCount" abstract="false" name="VariableInterestEntitiesUnconsolidatedCount" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="wpc_ChangeInRestrictedCash" abstract="false" name="ChangeInRestrictedCash" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wpc_RevenueFromReimbursementsMember" abstract="true" name="RevenueFromReimbursementsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wpc_NetLeaseOfficePropertiesMember" abstract="true" name="NetLeaseOfficePropertiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wpc_CareyEuropeanStudentHousingFundIL.P.Member" abstract="true" name="CareyEuropeanStudentHousingFundIL.P.Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wpc_AssetManagementFeesReceivable" abstract="false" name="AssetManagementFeesReceivable" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wpc_RelatedPartyReimbursementRevenueReceivable" abstract="false" name="RelatedPartyReimbursementRevenueReceivable" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wpc_OtherEntityMember" abstract="true" name="OtherEntityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wpc_AnnualManagementFee" abstract="false" name="AnnualManagementFee" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wpc_AdministrativeReimbursementsFee" abstract="false" name="AdministrativeReimbursementsFee" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wpc_NumberOfJointlyOwnedInvestments" abstract="false" name="NumberOfJointlyOwnedInvestments" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="wpc_NumberOfJointlyOwnedInvestmentsEquityMethodInvestments" abstract="false" name="NumberOfJointlyOwnedInvestmentsEquityMethodInvestments" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="wpc_OperatingRealEstateBusinessMember" abstract="true" name="OperatingRealEstateBusinessMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wpc_RealEstateInvestmentPropertyNetRealEstateLeased" abstract="false" name="RealEstateInvestmentPropertyNetRealEstateLeased" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wpc_RealEstateSubjectToOperatingLeaseMember" abstract="true" name="RealEstateSubjectToOperatingLeaseMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wpc_BuildToSuitMember" abstract="true" name="BuildToSuitMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wpc_StudentHousingMember" abstract="true" name="StudentHousingMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wpc_NumberOfRealEstatePropertiesDueToLeaseExtension" abstract="false" name="NumberOfRealEstatePropertiesDueToLeaseExtension" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="wpc_LandInvestmentBuildingAndBuildingImprovements" abstract="false" name="LandInvestmentBuildingAndBuildingImprovements" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wpc_FundsCapitalizedForConstructionInProgress" abstract="false" name="FundsCapitalizedForConstructionInProgress" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wpc_NumberOfConstructionProjectsDuringPeriod" abstract="false" name="NumberOfConstructionProjectsDuringPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="wpc_UnfundedCommitment" abstract="false" name="UnfundedCommitment" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wpc_EndOfLeasePayments" abstract="false" name="EndOfLeasePayments" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wpc_IncreaseDecreaseInRealEstateInvestmentPropertyNetOperatingRealEstate" abstract="false" name="IncreaseDecreaseInRealEstateInvestmentPropertyNetOperatingRealEstate" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wpc_LasVegasNewMexicoMember" abstract="true" name="LasVegasNewMexicoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wpc_ArlingtonHeightsIllinoisMember" abstract="true" name="ArlingtonHeightsIllinoisMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wpc_VariousPolandMember" abstract="true" name="VariousPolandMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wpc_SolonOhioMember" abstract="true" name="SolonOhioMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wpc_VariousCanadaMember" abstract="true" name="VariousCanadaMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wpc_BahlingenAmKaiserstuhlGermanyMember" abstract="true" name="BahlingenAmKaiserstuhlGermanyMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wpc_EdenNorthCarolinaMember" abstract="true" name="EdenNorthCarolinaMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wpc_AkronOhioMember" abstract="true" name="AkronOhioMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wpc_VariousGermanyMember" abstract="true" name="VariousGermanyMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wpc_VariousUnitedStatesMember" abstract="true" name="VariousUnitedStatesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wpc_VariousLithuaniaMember" abstract="true" name="VariousLithuaniaMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wpc_VariousLithuaniaLatviaAndEstoniaMember" abstract="true" name="VariousLithuaniaLatviaAndEstoniaMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wpc_MurciaSpainMember" abstract="true" name="MurciaSpainMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wpc_BloomfieldNewMexicoMember" abstract="true" name="BloomfieldNewMexicoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wpc_TulsaOklahomaMember" abstract="true" name="TulsaOklahomaMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wpc_IndustrialMember" abstract="true" name="IndustrialMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wpc_SpecialtyHealthcareMember" abstract="true" name="SpecialtyHealthcareMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wpc_RetailWarehouseMember" abstract="true" name="RetailWarehouseMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wpc_JointlyOwnedInvestmentMember" abstract="true" name="JointlyOwnedInvestmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wpc_NumberOfStates" abstract="false" name="NumberOfStates" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="wpc_BelowMarketRentMember" abstract="true" name="BelowMarketRentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wpc_BelowMarketGroundMember" abstract="true" name="BelowMarketGroundMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wpc_RightOfUseLiabilityMember" abstract="true" name="RightOfUseLiabilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wpc_SurpriseArizonaMember" abstract="true" name="SurpriseArizonaMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wpc_OskarshamnSwedenMember" abstract="true" name="OskarshamnSwedenMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wpc_BillingsMontanaMember" abstract="true" name="BillingsMontanaMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wpc_OverlandParkKansasMember" abstract="true" name="OverlandParkKansasMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wpc_RealEstateInvestmentPropertyNetOperatingRealEstate" abstract="false" name="RealEstateInvestmentPropertyNetOperatingRealEstate" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wpc_LandBuildingsAndImprovementsNetLeaseAndOtherMember" abstract="true" name="LandBuildingsAndImprovementsNetLeaseAndOtherMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wpc_AssetsHeldForSaleNotPartOfDisposalGroupGross" abstract="false" name="AssetsHeldForSaleNotPartOfDisposalGroupGross" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wpc_AssetsHeldForSaleNotPartOfDisposalGroupAccumulatedDepreciation" abstract="false" name="AssetsHeldForSaleNotPartOfDisposalGroupAccumulatedDepreciation" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wpc_SalesTypeLeaseNetInvestmentInLeaseLoansReceivableAfterAllowanceForCreditLoss" abstract="false" name="SalesTypeLeaseNetInvestmentInLeaseLoansReceivableAfterAllowanceForCreditLoss" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wpc_MortgageLoansReceivableNet" abstract="false" name="MortgageLoansReceivableNet" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wpc_NetInvestmentInLeaseAndLoansReceivableBeforeAllowanceForCreditLoss" abstract="false" name="NetInvestmentInLeaseAndLoansReceivableBeforeAllowanceForCreditLoss" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wpc_DirectFinancingLeaseMember" abstract="true" name="DirectFinancingLeaseMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wpc_PropertiesLocatedInOceansideCaliforniaMember" abstract="true" name="PropertiesLocatedInOceansideCaliforniaMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wpc_PropertiesLocatedInMt.CarmelIllinoisMember" abstract="true" name="PropertiesLocatedInMt.CarmelIllinoisMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wpc_ReclassificationLocationAxis" abstract="true" name="ReclassificationLocationAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="wpc_ReclassificationLocationDomain" abstract="true" name="ReclassificationLocationDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wpc_SalesTypeLeasesMember" abstract="true" name="SalesTypeLeasesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wpc_RealEstateAssociatedWithSalesLeaseBackMember" abstract="true" name="RealEstateAssociatedWithSalesLeaseBackMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wpc_NetInvestmentsInDirectFinancingLeasesAndLoansReceivableAdjustmentsDuringPeriod" abstract="false" name="NetInvestmentsInDirectFinancingLeasesAndLoansReceivableAdjustmentsDuringPeriod" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="wpc_AtMarketStockAggregateGrossSalesPriceOfCommonShares" abstract="false" name="AtMarketStockAggregateGrossSalesPriceOfCommonShares" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wpc_SaleOfStockNumberOfSharesAuthorizedForIssuanceInTransaction" abstract="false" name="SaleOfStockNumberOfSharesAuthorizedForIssuanceInTransaction" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wpc_RestrictedShareAwardsRSAsAndRestrictedShareUnitsRSUsMember" abstract="true" name="RestrictedShareAwardsRSAsAndRestrictedShareUnitsRSUsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wpc_LongTermIncentivePlanMember" abstract="true" name="LongTermIncentivePlanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wpc_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAdjustments" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAdjustments" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="wpc_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAdjustmentsWeightedAverageGrantDateFairValue" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAdjustmentsWeightedAverageGrantDateFairValue" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="wpc_ShareBasedCompensationArrangementByShareBasedPaymentAwardConversionRate" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardConversionRate" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="wpc_PotentialPerformanceReturnRateForStockAwards" abstract="false" name="PotentialPerformanceReturnRateForStockAwards" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="wpc_ForwardEquityOfferingMember" abstract="true" name="ForwardEquityOfferingMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wpc_SaleOfStockSharesOffered" abstract="false" name="SaleOfStockSharesOffered" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="wpc_SaleOfStockNumberOfSharesOutstanding" abstract="false" name="SaleOfStockNumberOfSharesOutstanding" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="wpc_ProceedsAvailableFromSaleOfStock" abstract="false" name="ProceedsAvailableFromSaleOfStock" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wpc_ReconciliationOfAccumulatedComprehensiveIncomeAbstract" abstract="true" name="ReconciliationOfAccumulatedComprehensiveIncomeAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="wpc_GainsLossesOnSalesOfInvestmentRealEstateTax" abstract="false" name="GainsLossesOnSalesOfInvestmentRealEstateTax" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wpc_SterlingOvernightIndexAverageMember" abstract="true" name="SterlingOvernightIndexAverageMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wpc_GovernmentBondYieldMember" abstract="true" name="GovernmentBondYieldMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
</xs:schema>
