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  <xs:element id="hhh_A2025WaterwayAvenueMember" abstract="true" name="A2025WaterwayAvenueMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="hhh_WaterwayGarageRetailMember" abstract="true" name="WaterwayGarageRetailMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="hhh_A1400WoodlochForestMember" abstract="true" name="A1400WoodlochForestMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="hhh_TheWoodlandsHillsMember" abstract="true" name="TheWoodlandsHillsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="hhh_AaliiMember" abstract="true" name="AaliiMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="hhh_AeoMember" abstract="true" name="AeoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="hhh_AnahaMember" abstract="true" name="AnahaMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="hhh_KalaeMember" abstract="true" name="KalaeMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="hhh_KeKilohanaMember" abstract="true" name="KeKilohanaMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="hhh_KewaloBasinHarborMember" abstract="true" name="KewaloBasinHarborMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="hhh_KulaMember" abstract="true" name="KulaMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="hhh_TheParkWardVillageMember" abstract="true" name="TheParkWardVillageMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="hhh_UlanaWardVillageMember" abstract="true" name="UlanaWardVillageMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="hhh_VictoriaPlaceMember" abstract="true" name="VictoriaPlaceMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="hhh_WardPredevelopmentMember" abstract="true" name="WardPredevelopmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="hhh_WardVillageParkingGaragesMember" abstract="true" name="WardVillageParkingGaragesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="hhh_WardVillageRetailMember" abstract="true" name="WardVillageRetailMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="hhh_RealEstateAndAccumulatedDepreciationAmountOfEncumbrancesExcludingAdjustments" abstract="false" name="RealEstateAndAccumulatedDepreciationAmountOfEncumbrancesExcludingAdjustments" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="hhh_RealEstateAndAccumulatedDepreciationInitialCostOfLandExcludingAdjustments" abstract="false" name="RealEstateAndAccumulatedDepreciationInitialCostOfLandExcludingAdjustments" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="hhh_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovement" abstract="false" name="RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovement" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="hhh_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLandIncludesCostOfDisposalForRetailPropertiesAndTransfersForInternallyDevelopedExcludingAdjustments" abstract="false" name="RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLandIncludesCostOfDisposalForRetailPropertiesAndTransfersForInternallyDevelopedExcludingAdjustments" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="hhh_SecScheduleIiiRealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLandIncludesCostOfDisposalForRetailPropertiesAndTransfersForInternallyDeveloped" abstract="false" name="SecScheduleIiiRealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLandIncludesCostOfDisposalForRetailPropertiesAndTransfersForInternallyDeveloped" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="hhh_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovementsIncludesCostOfDisposalsAndReductionsReflectTransfersExcludingAdjustments" abstract="false" name="RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovementsIncludesCostOfDisposalsAndReductionsReflectTransfersExcludingAdjustments" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="hhh_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovementsIncludesCostOfDisposalsAndReductionsReflectTransfers" abstract="false" name="RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovementsIncludesCostOfDisposalsAndReductionsReflectTransfers" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="hhh_RealEstateAndAccumulatedDepreciationCarryingAmountOfLandExcludingAdjustments" abstract="false" name="RealEstateAndAccumulatedDepreciationCarryingAmountOfLandExcludingAdjustments" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="hhh_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovementsIncludingReductionsForTransfersExcludingAdjustments" abstract="false" name="RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovementsIncludingReductionsForTransfersExcludingAdjustments" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="hhh_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovementsIncludingReductionsForTransfers" abstract="false" name="RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovementsIncludingReductionsForTransfers" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="hhh_RealEstateGrossAtCarryingValueExcludingAdjustments" abstract="false" name="RealEstateGrossAtCarryingValueExcludingAdjustments" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="hhh_RealEstateAccumulatedDepreciationExcludingAdjustments" abstract="false" name="RealEstateAccumulatedDepreciationExcludingAdjustments" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="hhh_RealEstateDispositionsAndWriteOffs" abstract="false" name="RealEstateDispositionsAndWriteOffs" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="hhh_RealEstateAccumulatedDepreciationDispositionsAndWriteOffs" abstract="false" name="RealEstateAccumulatedDepreciationDispositionsAndWriteOffs" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
</xs:schema>
