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  <xs:element id="krc_A2023PerformanceBasedRSUsMember" abstract="true" name="A2023PerformanceBasedRSUsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="krc_A2023PerformanceBasedRSUsDebtToEBITDARatioPerformanceConditionMember" abstract="true" name="A2023PerformanceBasedRSUsDebtToEBITDARatioPerformanceConditionMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="krc_A2025PerformanceBasedRSUsMember" abstract="true" name="A2025PerformanceBasedRSUsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="krc_A2025PerformanceBasedRSUsDebtToEBITDARatioPerformanceConditionMember" abstract="true" name="A2025PerformanceBasedRSUsDebtToEBITDARatioPerformanceConditionMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="krc_SharebasedCompensationArrangementbySharebasedPaymentAwardNumberofPlans" abstract="false" name="SharebasedCompensationArrangementbySharebasedPaymentAwardNumberofPlans" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="krc_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsVestingCriteriaThree" abstract="false" name="SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsVestingCriteriaThree" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="krc_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsVestingCriteriaOne" abstract="false" name="SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsVestingCriteriaOne" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="krc_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsVestingCriteriaTwo" abstract="false" name="SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsVestingCriteriaTwo" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="krc_ShareBasedCompensationArrangementByShareBasedPaymentAwardAchievementConditionPercent" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardAchievementConditionPercent" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="krc_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsRatioSharesGrantedperUnit" abstract="false" name="SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsRatioSharesGrantedperUnit" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="krc_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodGrantDateFairValue" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodGrantDateFairValue" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="krc_SharebasedCompensationArrangementbySharebasedPaymentInstallments" abstract="false" name="SharebasedCompensationArrangementbySharebasedPaymentInstallments" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="krc_SharebasedCompensationArrangementbySharebasedPaymentAwardShareRights" abstract="false" name="SharebasedCompensationArrangementbySharebasedPaymentAwardShareRights" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="krc_SharebasedCompensationArrangementbySharebasedPaymentAwardAchievementConditionPercentParticipantOne" abstract="false" name="SharebasedCompensationArrangementbySharebasedPaymentAwardAchievementConditionPercentParticipantOne" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="krc_NumberOfParticipantsWithCompensationExpenseRecognizedOnARollingTwelveMonthBasis" abstract="false" name="NumberOfParticipantsWithCompensationExpenseRecognizedOnARollingTwelveMonthBasis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="krc_ShareBasedCompensationArrangementByShareBasedPaymentAwardAchievementConditionPercentParticipantTwo" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardAchievementConditionPercentParticipantTwo" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="krc_OneParticipantMember" abstract="true" name="OneParticipantMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="krc_OperatingLeaseIncomeAdjustments" abstract="false" name="OperatingLeaseIncomeAdjustments" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="krc_EnvironmentalLiabilitiesMember" abstract="true" name="EnvironmentalLiabilitiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="krc_AssetRetirementObligationsMember" abstract="true" name="AssetRetirementObligationsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="krc_NumeratorAbstract" abstract="true" name="NumeratorAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="krc_NetIncomeLossAvailableToCommonStockholders" abstract="false" name="NetIncomeLossAvailableToCommonStockholders" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="krc_EarningsPerCommonUnitDenominatorAbstract" abstract="true" name="EarningsPerCommonUnitDenominatorAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="krc_BasicAndDilutedNetLossIncomeAvailableToCommonUnitholdersAbstract" abstract="true" name="BasicAndDilutedNetLossIncomeAvailableToCommonUnitholdersAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="krc_PaymentsForGroundLeases" abstract="false" name="PaymentsForGroundLeases" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="krc_NoncashInvestingActivitiesAbstract" abstract="true" name="NoncashInvestingActivitiesAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="krc_TenantImprovementsFundedDirectlyByTenantsToThirdParties" abstract="false" name="TenantImprovementsFundedDirectlyByTenantsToThirdParties" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="krc_NoncashFinancingActivitiesAbstract" abstract="true" name="NoncashFinancingActivitiesAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="krc_CommonStockholdersAndUnitholdersDividendsAndDistributionsDeclaredButNotPaid" abstract="false" name="CommonStockholdersAndUnitholdersDividendsAndDistributionsDeclaredButNotPaid" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="krc_OfficeAndLifeSciencePropertiesSegmentMember" abstract="true" name="OfficeAndLifeSciencePropertiesSegmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
</xs:schema>
