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  <xs:element id="cdp_ShareBasedCompensationArrangementByShareBasedPaymentAwardMinimumPayoutPercentageWhenTotalShareholderReturnTSRPercentileRankExceeds50thPercentileAndTSRIsNegative" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardMinimumPayoutPercentageWhenTotalShareholderReturnTSRPercentileRankExceeds50thPercentileAndTSRIsNegative" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="cdp_ShareBasedCompensationArrangementByShareBasedPaymentAwardMinimumPayoutPercentageIfTotalShareholderReturnIsAtLeastTenPercent" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardMinimumPayoutPercentageIfTotalShareholderReturnIsAtLeastTenPercent" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="cdp_ShareBasedCompensationArrangementByShareBasedPaymentAwardMinimumPayoutPercentageIfTotalShareholderReturnIsAtLeastSixPercent" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardMinimumPayoutPercentageIfTotalShareholderReturnIsAtLeastSixPercent" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="cdp_SharebasedCompensationArrangementbySharebasedPaymentAwardDistributionRightsasaPercentageofNonPIUCommonUnitsPercentage" abstract="false" name="SharebasedCompensationArrangementbySharebasedPaymentAwardDistributionRightsasaPercentageofNonPIUCommonUnitsPercentage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="cdp_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodAggregateFairValue" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodAggregateFairValue" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cdp_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsBaselineCommonShareValue" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsBaselineCommonShareValue" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="cdp_ShareBasedCompensationArrangementByShareBasedPaymentAwardActualPayoutPercentage" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardActualPayoutPercentage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="cdp_ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuedInPeriodAggregateFairValue" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuedInPeriodAggregateFairValue" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cdp_ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuedInPeriodWeightedAverageGrantDateFairValue" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuedInPeriodWeightedAverageGrantDateFairValue" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="cdp_SharebasedCompensationArrangementbySharebasedPaymentAwardofEarnedPayoutPercentageBasedonPercentileRankGreaterthanorEqualsto75" abstract="false" name="SharebasedCompensationArrangementbySharebasedPaymentAwardofEarnedPayoutPercentageBasedonPercentileRankGreaterthanorEqualsto75" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="cdp_SharebasedCompensationArrangementbySharebasedPaymentAwardofEarnedPayoutPercentageBasedonPercentileRankEqualsto50" abstract="false" name="SharebasedCompensationArrangementbySharebasedPaymentAwardofEarnedPayoutPercentageBasedonPercentileRankEqualsto50" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="cdp_SharebasedCompensationArrangementbySharebasedPaymentAwardofEarnedPayoutPercentageBasedonPercentileRankEqualsto25" abstract="false" name="SharebasedCompensationArrangementbySharebasedPaymentAwardofEarnedPayoutPercentageBasedonPercentileRankEqualsto25" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="cdp_SharebasedCompensationArrangementbySharebasedPaymentAwardofEarnedPayoutPercentageBasedonPercentileRankLessthan25" abstract="false" name="SharebasedCompensationArrangementbySharebasedPaymentAwardofEarnedPayoutPercentageBasedonPercentileRankLessthan25" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="cdp_RestrictedStockandDeferredSharesMember" abstract="true" name="RestrictedStockandDeferredSharesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cdp_UnvestedTBPIUsMember" abstract="true" name="UnvestedTBPIUsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cdp_ExchangeableCommonUnitsMember" abstract="true" name="ExchangeableCommonUnitsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cdp_RedeemableNoncontrollingInterestMember" abstract="true" name="RedeemableNoncontrollingInterestMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cdp_AnneArundelCountyMarylandMember" abstract="true" name="AnneArundelCountyMarylandMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cdp_TaxIncrementalFinancingBondMember" abstract="true" name="TaxIncrementalFinancingBondMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cdp_PropertySubjecttoEnvironmentalIndemnityNumberofProperties" abstract="false" name="PropertySubjecttoEnvironmentalIndemnityNumberofProperties" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="cdp_MaximumAdditionalCostsAgreedToBePaidByTheEntityUnderEnvironmentalIndemnificationAgreement" abstract="false" name="MaximumAdditionalCostsAgreedToBePaidByTheEntityUnderEnvironmentalIndemnificationAgreement" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
</xs:schema>
