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  <xs:element id="hiw_NoncontrollingInterestsInOperatingPartnershipAbstract" abstract="true" name="NoncontrollingInterestsInOperatingPartnershipAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="hiw_NetIncomeAvailableForCommonStockholdersAndTransfersFromNoncontrollingInterestsInTheOperatingPartnershipAbstract" abstract="true" name="NetIncomeAvailableForCommonStockholdersAndTransfersFromNoncontrollingInterestsInTheOperatingPartnershipAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="hiw_RedemptionsOfCommonUnits" abstract="false" name="RedemptionsOfCommonUnits" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="hiw_MarketableSecuritiesOfNonQualifiedDeferredCompensationPlanFairValueDisclosure" abstract="false" name="MarketableSecuritiesOfNonQualifiedDeferredCompensationPlanFairValueDisclosure" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="hiw_NoncontrollingInterestsInOperatingPartnershipFairValueDisclosure" abstract="false" name="NoncontrollingInterestsInOperatingPartnershipFairValueDisclosure" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="hiw_NonQualifiedDeferredCompensationObligationFairValueDisclosure" abstract="false" name="NonQualifiedDeferredCompensationObligationFairValueDisclosure" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="hiw_TimeBasedRestrictedStockMember" abstract="true" name="TimeBasedRestrictedStockMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="hiw_TotalReturnBasedAndPerformanceBasedRestrictedStockMember" abstract="true" name="TotalReturnBasedAndPerformanceBasedRestrictedStockMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="hiw_DisposalGroupIncludingDiscontinuedOperationsLand" abstract="false" name="DisposalGroupIncludingDiscontinuedOperationsLand" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="hiw_DisposalGroupIncludingDiscontinuedOperationsBuildingAndTenantImprovements" abstract="false" name="DisposalGroupIncludingDiscontinuedOperationsBuildingAndTenantImprovements" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="hiw_DisposalGroupIncludingDiscontinuedOperationsRealEstateInvestmentPropertyAccumulatedDepreciation" abstract="false" name="DisposalGroupIncludingDiscontinuedOperationsRealEstateInvestmentPropertyAccumulatedDepreciation" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="hiw_DisposalGroupIncludingDiscontinuedOperationsRealEstateInvestmentPropertyNet" abstract="false" name="DisposalGroupIncludingDiscontinuedOperationsRealEstateInvestmentPropertyNet" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="hiw_DisposalGroupIncludingDiscontinuedOperationsDeferredRentReceivablesNet" abstract="false" name="DisposalGroupIncludingDiscontinuedOperationsDeferredRentReceivablesNet" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="hiw_EarningsPerCommonShareBasicAbstract" abstract="true" name="EarningsPerCommonShareBasicAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="hiw_MinorityInterestInNetIncomeLossOperatingPartnershipsContinuingOperations" abstract="false" name="MinorityInterestInNetIncomeLossOperatingPartnershipsContinuingOperations" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="hiw_EarningsPerCommonShareDilutedAbstract" abstract="true" name="EarningsPerCommonShareDilutedAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="hiw_WeightedAverageNoncontrollingInterestLimitedPartnershipUnitsOutstandingDiluted" abstract="false" name="WeightedAverageNoncontrollingInterestLimitedPartnershipUnitsOutstandingDiluted" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="hiw_TotalReportableSegmentMember" abstract="true" name="TotalReportableSegmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="hiw_AtlantaGAMember" abstract="true" name="AtlantaGAMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="hiw_CharlotteNCMember" abstract="true" name="CharlotteNCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="hiw_DallasTXMember" abstract="true" name="DallasTXMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="hiw_NashvilleTNMember" abstract="true" name="NashvilleTNMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="hiw_OrlandoFLMember" abstract="true" name="OrlandoFLMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="hiw_RaleighNCMember" abstract="true" name="RaleighNCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="hiw_RichmondVAMember" abstract="true" name="RichmondVAMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="hiw_TampaFLMember" abstract="true" name="TampaFLMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="hiw_NumberOfLoanInstruments" abstract="false" name="NumberOfLoanInstruments" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
</xs:schema>
