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        <link:definition>9952165 - Disclosure - Homebuilding debt and other affiliate debt</link:definition>
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        <link:definition>9952173 - Disclosure - Warrant liability</link:definition>
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        <link:definition>9955524 - Disclosure - Convertible note payable (Tables)</link:definition>
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        <link:definition>9955525 - Disclosure - Share-based compensation (Tables)</link:definition>
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        <link:definition>9955527 - Disclosure - Warrant liability (Tables)</link:definition>
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        <link:definition>9955528 - Disclosure - Income Taxes (Tables)</link:definition>
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        <link:definition>9955531 - Disclosure - Merger and reverse recapitalization - Common Stock Issued Following Consummation of Business Combination (Details)</link:definition>
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  <xs:element id="uhg_WeightedAverageNumberOfSharesOutstandingBasicAndDilutedAbstract" abstract="true" name="WeightedAverageNumberOfSharesOutstandingBasicAndDilutedAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="uhg_StockholdersEquityPeriodDecreaseIncreaseFromDistributionsAndNetTransferToShareholdersAndOtherAffiliates" abstract="false" name="StockholdersEquityPeriodDecreaseIncreaseFromDistributionsAndNetTransferToShareholdersAndOtherAffiliates" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="uhg_IssuanceOfSharesRelatedToPerformanceStockUnits" abstract="false" name="IssuanceOfSharesRelatedToPerformanceStockUnits" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="uhg_IssuanceOfSharesRelatedToPerformanceStockValue" abstract="false" name="IssuanceOfSharesRelatedToPerformanceStockValue" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="uhg_TaxesRelatedToNetShareSettlementOfPerformanceStockUnits" abstract="false" name="TaxesRelatedToNetShareSettlementOfPerformanceStockUnits" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="uhg_AdjustmentsToAdditionalPaidInCapitalForfeitureOfPrivatePlacementWarrants" abstract="false" name="AdjustmentsToAdditionalPaidInCapitalForfeitureOfPrivatePlacementWarrants" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="uhg_StockIssuedDuringPeriodSharesReverseRecapitalization" abstract="false" name="StockIssuedDuringPeriodSharesReverseRecapitalization" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="uhg_StockIssuedDuringPeriodValueReverseRecapitalization" abstract="false" name="StockIssuedDuringPeriodValueReverseRecapitalization" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="uhg_StockIssuedDuringPeriodSharesPipeInvestment" abstract="false" name="StockIssuedDuringPeriodSharesPipeInvestment" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="uhg_StockIssuedDuringPeriodValuePipeInvestment" abstract="false" name="StockIssuedDuringPeriodValuePipeInvestment" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="uhg_StockIssuedDuringPeriodSharesLockUpAgreement" abstract="false" name="StockIssuedDuringPeriodSharesLockUpAgreement" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="uhg_StockIssuedDuringPeriodValueLockUpAgreement" abstract="false" name="StockIssuedDuringPeriodValueLockUpAgreement" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="uhg_AdjustmentsToAdditionalPaidInCapitalRecognitionOfDerivativeLiabilityRelatedToEarnout" abstract="false" name="AdjustmentsToAdditionalPaidInCapitalRecognitionOfDerivativeLiabilityRelatedToEarnout" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="uhg_AdjustmentsToAdditionalPaidInCapitalRecognitionOfDerivativeLiabilityRelatedToEquityIncentivePlan" abstract="false" name="AdjustmentsToAdditionalPaidInCapitalRecognitionOfDerivativeLiabilityRelatedToEquityIncentivePlan" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="uhg_AdjustmentsToAdditionalPaidInCapitalEarnoutStockBasedCompensationExpenseForUhgEmployeeOptions" abstract="false" name="AdjustmentsToAdditionalPaidInCapitalEarnoutStockBasedCompensationExpenseForUhgEmployeeOptions" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="uhg_AdjustmentsToAdditionalPaidInCapitalReverseRecapitalizationTransactionCosts" abstract="false" name="AdjustmentsToAdditionalPaidInCapitalReverseRecapitalizationTransactionCosts" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="uhg_AdjustmentsToAdditionalPaidInCapitalReclassificationOfNegativeAdditionalPaidInCapital" abstract="false" name="AdjustmentsToAdditionalPaidInCapitalReclassificationOfNegativeAdditionalPaidInCapital" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="uhg_SharesIssuedValueShareBasedPaymentArrangementOptionsForfeited" abstract="false" name="SharesIssuedValueShareBasedPaymentArrangementOptionsForfeited" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="uhg_RecapitalizationExchangeRatio" abstract="false" name="RecapitalizationExchangeRatio" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="uhg_ContingentEarnoutLiabilityMember" abstract="true" name="ContingentEarnoutLiabilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="uhg_EquityIncentivePlanMember" abstract="true" name="EquityIncentivePlanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="uhg_ConvertibleNotesMember" abstract="true" name="ConvertibleNotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="uhg_PrivateInvestorDebtMember" abstract="true" name="PrivateInvestorDebtMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="uhg_GainLossOnModificationOfLease" abstract="false" name="GainLossOnModificationOfLease" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="uhg_NonCashInterestIncome" abstract="false" name="NonCashInterestIncome" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="uhg_ProceedsFromPromissoryNoteIssuedInExchangeForSaleOfPropertyPlantAndEquipment" abstract="false" name="ProceedsFromPromissoryNoteIssuedInExchangeForSaleOfPropertyPlantAndEquipment" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="uhg_ProceedsFromSaleOfRealEstateNotOwned" abstract="false" name="ProceedsFromSaleOfRealEstateNotOwned" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="uhg_RepaymentsOfLiabilitiesFromRealEstateNotOwned" abstract="false" name="RepaymentsOfLiabilitiesFromRealEstateNotOwned" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="uhg_TaxesRelatedToNetShareSettlementOfRestrictedStockUnits" abstract="false" name="TaxesRelatedToNetShareSettlementOfRestrictedStockUnits" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="uhg_ProceedsFromPipeInvestmentAndLockUp" abstract="false" name="ProceedsFromPipeInvestmentAndLockUp" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="uhg_ProceedsFromBusinessCombinationNetOfTransactionCosts" abstract="false" name="ProceedsFromBusinessCombinationNetOfTransactionCosts" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="uhg_PaymentOfTransactionCosts" abstract="false" name="PaymentOfTransactionCosts" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="uhg_ModificationToExistingLease" abstract="false" name="ModificationToExistingLease" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="uhg_NoncashLeaseTermination" abstract="false" name="NoncashLeaseTermination" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="uhg_AdditionsOfRightOfUseLeaseAssetsAndLiabilities" abstract="false" name="AdditionsOfRightOfUseLeaseAssetsAndLiabilities" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="uhg_NoncashExerciseOfEmployeeStockOptions" abstract="false" name="NoncashExerciseOfEmployeeStockOptions" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="uhg_ForfeitureOfEmployeeStockOptions" abstract="false" name="ForfeitureOfEmployeeStockOptions" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="uhg_TransferOfCoObligorDebtToAffiliates" abstract="false" name="TransferOfCoObligorDebtToAffiliates" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="uhg_TransferOfGuarantorFromToShareholder" abstract="false" name="TransferOfGuarantorFromToShareholder" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="uhg_NoncashDistributionToOwnerSOfOtherAffiliates" abstract="false" name="NoncashDistributionToOwnerSOfOtherAffiliates" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="uhg_EarnestMoneyReceivableFromOtherAffiliates" abstract="false" name="EarnestMoneyReceivableFromOtherAffiliates" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="uhg_RecognitionOfPreviouslyCapitalizedDeferredTransactionCosts" abstract="false" name="RecognitionOfPreviouslyCapitalizedDeferredTransactionCosts" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="uhg_RecognitionOfDerivativeLiabilityRelatedToEarnout" abstract="false" name="RecognitionOfDerivativeLiabilityRelatedToEarnout" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="uhg_RecognitionOfDerivativeLiabilityRelatedToEquityIncentivePlan" abstract="false" name="RecognitionOfDerivativeLiabilityRelatedToEquityIncentivePlan" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="uhg_RecognitionOfWarrantLiabilityUponBusinessCombination" abstract="false" name="RecognitionOfWarrantLiabilityUponBusinessCombination" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="uhg_ForfeitureOfPrivatePlacementWarrantsUponBusinessCombination" abstract="false" name="ForfeitureOfPrivatePlacementWarrantsUponBusinessCombination" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="uhg_RecognitionOfDeferredTaxAssetUponBusinessCombination" abstract="false" name="RecognitionOfDeferredTaxAssetUponBusinessCombination" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="uhg_RecognitionOfIncomeTaxPayableUponBusinessCombination" abstract="false" name="RecognitionOfIncomeTaxPayableUponBusinessCombination" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="uhg_NoncashExerciseOfStockWarrants" abstract="false" name="NoncashExerciseOfStockWarrants" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="uhg_NoncashOrPartNoncashAcquisitionContingentLiability" abstract="false" name="NoncashOrPartNoncashAcquisitionContingentLiability" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="uhg_NoncashOrPartNoncashAcquisitionContingentConsiderationLiability" abstract="false" name="NoncashOrPartNoncashAcquisitionContingentConsiderationLiability" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="uhg_NonCashInvestingAndFinancingActivities" abstract="false" name="NonCashInvestingAndFinancingActivities" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="uhg_ReverseRecapitalizationAbstract" abstract="true" name="ReverseRecapitalizationAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="uhg_MergerAndReverseRecapitalizationTextBlock" abstract="false" name="MergerAndReverseRecapitalizationTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="uhg_EarnoutSharesAbstract" abstract="true" name="EarnoutSharesAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="uhg_EarnoutSharesTextBlock" abstract="false" name="EarnoutSharesTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="uhg_WarrantsOrRightsNoteDisclosureTextBlock" abstract="false" name="WarrantsOrRightsNoteDisclosureTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="uhg_EmergingGrowthCompanyPolicyTextBlock" abstract="false" name="EmergingGrowthCompanyPolicyTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="uhg_LotPurchaseAgreementDepositsPolicyTextBlock" abstract="false" name="LotPurchaseAgreementDepositsPolicyTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="uhg_ConsolidationVariableInterestEntityPolicyTextBlock" abstract="false" name="ConsolidationVariableInterestEntityPolicyTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="uhg_PipeInvestmentPolicyTextBlock" abstract="false" name="PipeInvestmentPolicyTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="uhg_ScheduleOfConsummationOfBusinessCombinationTableTextBlock" abstract="false" name="ScheduleOfConsummationOfBusinessCombinationTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="uhg_ScheduleOfLotPurchaseAgreementsTableTextBlock" abstract="false" name="ScheduleOfLotPurchaseAgreementsTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="uhg_ScheduleOfNumberOfEarnoutSharesTableTextBlock" abstract="false" name="ScheduleOfNumberOfEarnoutSharesTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="uhg_ScheduleOfAssumptionsUsedInValuationOfInstrumentsTableTextBlock" abstract="false" name="ScheduleOfAssumptionsUsedInValuationOfInstrumentsTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="uhg_ScheduleOfReverseRecapitalizationTable" abstract="true" name="ScheduleOfReverseRecapitalizationTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="uhg_GshClassCommonSharesMember" abstract="true" name="GshClassCommonSharesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="uhg_GshClassBCommonSharesMember" abstract="true" name="GshClassBCommonSharesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="uhg_DhhcClassBCommonStockMember" abstract="true" name="DhhcClassBCommonStockMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="uhg_CommonClassFirstMember" abstract="true" name="CommonClassFirstMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="uhg_CommonClassSecondMember" abstract="true" name="CommonClassSecondMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="uhg_AssumedWarrantsMember" abstract="true" name="AssumedWarrantsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="uhg_WarrantsIssuedInConnectionWithDhhcInitialPublicOfferingMember" abstract="true" name="WarrantsIssuedInConnectionWithDhhcInitialPublicOfferingMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="uhg_DhhcSponsorShareholdersClassMember" abstract="true" name="DhhcSponsorShareholdersClassMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="uhg_ConvertibleNoteInvestorsClassMember" abstract="true" name="ConvertibleNoteInvestorsClassMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="uhg_DiamondheadHoldingsCorpMember" abstract="true" name="DiamondheadHoldingsCorpMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="uhg_LegacyUhgMember" abstract="true" name="LegacyUhgMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="uhg_NotePurchaseAgreementMember" abstract="true" name="NotePurchaseAgreementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="uhg_PipeSubscriptionAgreementsMember" abstract="true" name="PipeSubscriptionAgreementsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="uhg_ShareLockUpAgreementsMember" abstract="true" name="ShareLockUpAgreementsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="uhg_DerivativePrivatePlacementWarrantLiabilityMember" abstract="true" name="DerivativePrivatePlacementWarrantLiabilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="uhg_ScheduleOfReverseRecapitalizationLineItems" abstract="true" name="ScheduleOfReverseRecapitalizationLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="uhg_BusinessCombinationNumberOfIssuedAndOutstandingSharesExchanged" abstract="false" name="BusinessCombinationNumberOfIssuedAndOutstandingSharesExchanged" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="uhg_BusinessCombinationNumberOfOutstandingOptionsOfAcquireeAssumed" abstract="false" name="BusinessCombinationNumberOfOutstandingOptionsOfAcquireeAssumed" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="uhg_BusinessCombinationNumberOfOptionsIssued" abstract="false" name="BusinessCombinationNumberOfOptionsIssued" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="uhg_BusinessCombinationNumberOfOutstandingWarrantsOfAcquireeAssumed" abstract="false" name="BusinessCombinationNumberOfOutstandingWarrantsOfAcquireeAssumed" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="uhg_EarnoutSharesNumber" abstract="false" name="EarnoutSharesNumber" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="uhg_EarnoutSharesNumberOfSharesInEarnoutConsideration" abstract="false" name="EarnoutSharesNumberOfSharesInEarnoutConsideration" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="uhg_StockSurrenderedDuringPeriodShares" abstract="false" name="StockSurrenderedDuringPeriodShares" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="uhg_CommonStockSharesRemainingAfterSurrender" abstract="false" name="CommonStockSharesRemainingAfterSurrender" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="uhg_StockForfeitedDuringPeriodShares" abstract="false" name="StockForfeitedDuringPeriodShares" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="uhg_StockIssuedDuringPeriodSharesIssuedToEachInvestor" abstract="false" name="StockIssuedDuringPeriodSharesIssuedToEachInvestor" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="uhg_MaximumNumberOfSharesAgreedToIssue" abstract="false" name="MaximumNumberOfSharesAgreedToIssue" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="uhg_CashAcquiredThroughReverseRecapitalization" abstract="false" name="CashAcquiredThroughReverseRecapitalization" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="uhg_PaymentsOfReverseRecapitalizationTransactionCosts" abstract="false" name="PaymentsOfReverseRecapitalizationTransactionCosts" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="uhg_DhhcPublicShareholdersClassA1Member" abstract="true" name="DhhcPublicShareholdersClassA1Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="uhg_GshExistingShareholdersClassBMember" abstract="true" name="GshExistingShareholdersClassBMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="uhg_GshExistingShareholdersClassMember" abstract="true" name="GshExistingShareholdersClassMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="uhg_PipeInvestorClassMember" abstract="true" name="PipeInvestorClassMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="uhg_LockUpInvestorsMember" abstract="true" name="LockUpInvestorsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="uhg_ReverseRecapitalizationLineItems" abstract="true" name="ReverseRecapitalizationLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="uhg_OwnershipPercentage" abstract="false" name="OwnershipPercentage" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="uhg_PublicWarrantsMember" abstract="true" name="PublicWarrantsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="uhg_PrivatePlacementWarrantMember" abstract="true" name="PrivatePlacementWarrantMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="uhg_PrivatePlacementWarrantsMember" abstract="true" name="PrivatePlacementWarrantsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="uhg_RosewoodCommunitiesIncMember" abstract="true" name="RosewoodCommunitiesIncMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="uhg_ServiceAgreementsRelatedPartyMember" abstract="true" name="ServiceAgreementsRelatedPartyMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="uhg_HomeownersMortgageLLCMember" abstract="true" name="HomeownersMortgageLLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="uhg_DepositInTransitPeriod" abstract="false" name="DepositInTransitPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="uhg_DepositsInTransit" abstract="false" name="DepositsInTransit" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="uhg_CashReceivedAsAPercentageOfTheCarryingValueOfTheAssociatedFinishedLot" abstract="false" name="CashReceivedAsAPercentageOfTheCarryingValueOfTheAssociatedFinishedLot" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="uhg_RevenueNumberOfPerformanceObligations" abstract="false" name="RevenueNumberOfPerformanceObligations" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="uhg_RevenueFromContractWithCustomerConsiderationAtClosingPeriod" abstract="false" name="RevenueFromContractWithCustomerConsiderationAtClosingPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="uhg_DerivativeInstrumentContingentConsiderationLiabilityShares" abstract="false" name="DerivativeInstrumentContingentConsiderationLiabilityShares" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="uhg_WarrantsAndRightsOutstandingTransferSaleAssignmentThresholdTerm" abstract="false" name="WarrantsAndRightsOutstandingTransferSaleAssignmentThresholdTerm" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="uhg_CommonStockWarrantsExercised" abstract="false" name="CommonStockWarrantsExercised" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="uhg_DebtInstrumentOriginalIssueDiscount" abstract="false" name="DebtInstrumentOriginalIssueDiscount" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="uhg_NumberOfFreestandingFinancialInstruments" abstract="false" name="NumberOfFreestandingFinancialInstruments" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="uhg_ProceedsAllocatedToNotes" abstract="false" name="ProceedsAllocatedToNotes" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="uhg_ProceedsAllocatedToShares" abstract="false" name="ProceedsAllocatedToShares" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="uhg_PurchaseOptionDepositPercentage" abstract="false" name="PurchaseOptionDepositPercentage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="uhg_ArchitecturalDesignsMember" abstract="true" name="ArchitecturalDesignsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="uhg_GSHSouthCarolinaMember" abstract="true" name="GSHSouthCarolinaMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="uhg_RosewoodMember" abstract="true" name="RosewoodMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="uhg_OtherSegmentMember" abstract="true" name="OtherSegmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="uhg_TotalSegmentIncomeLossBeforeTaxes" abstract="false" name="TotalSegmentIncomeLossBeforeTaxes" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="uhg_AssetsExcludingGoodwill" abstract="false" name="AssetsExcludingGoodwill" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="uhg_InvestmentInJointVenture" abstract="false" name="InvestmentInJointVenture" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="uhg_CreeksideCustomHomesLLCMember" abstract="true" name="CreeksideCustomHomesLLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="uhg_HerringHomesLLCMember" abstract="true" name="HerringHomesLLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="uhg_HerringHomesLLC50LotsMember" abstract="true" name="HerringHomesLLC50LotsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="uhg_FHerringHomesLLC12HomesUnderConstructionMember" abstract="true" name="FHerringHomesLLC12HomesUnderConstructionMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="uhg_BusinessCombinationContingentConsiderationArrangementsRangeOfOutcomesPercentage" abstract="false" name="BusinessCombinationContingentConsiderationArrangementsRangeOfOutcomesPercentage" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="uhg_NumberOfRealEstatePropertiesAcquired" abstract="false" name="NumberOfRealEstatePropertiesAcquired" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="uhg_BusinessCombinationSeparatelyRecognizedTransactionsNumberOfHomesAcquired" abstract="false" name="BusinessCombinationSeparatelyRecognizedTransactionsNumberOfHomesAcquired" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="uhg_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLotPurchaseAgreementDeposits" abstract="false" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLotPurchaseAgreementDeposits" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="uhg_DerivativeStockOptionLiabilityMember" abstract="true" name="DerivativeStockOptionLiabilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="uhg_FairValueTransferFromLevelsAmount" abstract="false" name="FairValueTransferFromLevelsAmount" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="uhg_ContingentConsiderationLiabilityMember" abstract="true" name="ContingentConsiderationLiabilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="uhg_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityExerciseAwards" abstract="false" name="FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityExerciseAwards" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="uhg_InventoryDevelopedLots" abstract="false" name="InventoryDevelopedLots" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="uhg_InventoryDevelopedLotsAndLandHeldDevelopmentAndSale" abstract="false" name="InventoryDevelopedLotsAndLandHeldDevelopmentAndSale" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="uhg_RealEstateInventoryCapitalizedInterestCostsInterestExpensedAbstract" abstract="true" name="RealEstateInventoryCapitalizedInterestCostsInterestExpensedAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="uhg_RealEstateInventoryCapitalizedInterestCostsInterestExpense" abstract="false" name="RealEstateInventoryCapitalizedInterestCostsInterestExpense" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="uhg_WellsFargoBankMember" abstract="true" name="WellsFargoBankMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="uhg_RegionsBankMember" abstract="true" name="RegionsBankMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="uhg_FlagstarBankMember" abstract="true" name="FlagstarBankMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="uhg_UnitedBankMember" abstract="true" name="UnitedBankMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="uhg_ThirdCoastBankMember" abstract="true" name="ThirdCoastBankMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="uhg_KennedyLewisCreditAgreementMember" abstract="true" name="KennedyLewisCreditAgreementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="uhg_LineOfCreditFacilityExtensionPeriod" abstract="false" name="LineOfCreditFacilityExtensionPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="uhg_DebtInstrumentNumberOfLendersExitedSyndicatedDebt" abstract="false" name="DebtInstrumentNumberOfLendersExitedSyndicatedDebt" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="uhg_DebtInstrumentNumberOfLendersJoinedSyndicatedDebt" abstract="false" name="DebtInstrumentNumberOfLendersJoinedSyndicatedDebt" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="uhg_DebtInstrumentNumberOfFinancialCovenantsAmended" abstract="false" name="DebtInstrumentNumberOfFinancialCovenantsAmended" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="uhg_NumberOfLendersNotIncludedInAmendment" abstract="false" name="NumberOfLendersNotIncludedInAmendment" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="uhg_LineOfCreditFacilityCommittedAmountOfLendersNotIncludedInAmendment" abstract="false" name="LineOfCreditFacilityCommittedAmountOfLendersNotIncludedInAmendment" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="uhg_ConstructionContractorShortTermContractDuration" abstract="false" name="ConstructionContractorShortTermContractDuration" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="uhg_DebtInstrumentCovenantConsolidatedEarningsMonetaryComponent" abstract="false" name="DebtInstrumentCovenantConsolidatedEarningsMonetaryComponent" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="uhg_DebtInstrumentCovenantConsolidatedEarningsPercentage" abstract="false" name="DebtInstrumentCovenantConsolidatedEarningsPercentage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="uhg_DebtInstrumentCovenantNewEquityContribution" abstract="false" name="DebtInstrumentCovenantNewEquityContribution" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="uhg_DebtInstrumentCovenantNewEquityContributionFromEquityIssuance" abstract="false" name="DebtInstrumentCovenantNewEquityContributionFromEquityIssuance" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="uhg_DebtInstrumentCovenantMaximumQuarterlyLeverageRatio" abstract="false" name="DebtInstrumentCovenantMaximumQuarterlyLeverageRatio" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="uhg_DebtInstrumentCovenantMaximumNumberOfTimesQuarterlyLeverageRatioCanReachMaximumThreshold" abstract="false" name="DebtInstrumentCovenantMaximumNumberOfTimesQuarterlyLeverageRatioCanReachMaximumThreshold" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:decimalItemType"/>
  <xs:element id="uhg_DebtInstrumentCovenantTemporaryMaximumQuarterlyLeverageRatio" abstract="false" name="DebtInstrumentCovenantTemporaryMaximumQuarterlyLeverageRatio" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="uhg_DebtInstrumentCovenantMinimumQuarterlyDebtServiceCoverageRatio" abstract="false" name="DebtInstrumentCovenantMinimumQuarterlyDebtServiceCoverageRatio" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="uhg_DebtInstrumentCovenantMinimumQuarterlyDebtServiceCoverageRatioThereafter" abstract="false" name="DebtInstrumentCovenantMinimumQuarterlyDebtServiceCoverageRatioThereafter" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="uhg_DebtInstrumentCovenantDebtServiceCoverageRatioMinimum" abstract="false" name="DebtInstrumentCovenantDebtServiceCoverageRatioMinimum" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="uhg_DebtInstrumentCovenantMaximumNumberOfTimesDebtServiceCoverageRatioCanReachMinimumThreshold" abstract="false" name="DebtInstrumentCovenantMaximumNumberOfTimesDebtServiceCoverageRatioCanReachMinimumThreshold" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:decimalItemType"/>
  <xs:element id="uhg_DebtInstrumentCovenantMinimumLiquidityIfDebtServiceCoverageRatioIsLessThanThresholdAmount" abstract="false" name="DebtInstrumentCovenantMinimumLiquidityIfDebtServiceCoverageRatioIsLessThanThresholdAmount" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="uhg_DebtInstrumentCovenantMaximumLiquidityIfDebtServiceCoverageRatioIsLessThanThresholdAmount" abstract="false" name="DebtInstrumentCovenantMaximumLiquidityIfDebtServiceCoverageRatioIsLessThanThresholdAmount" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="uhg_DebtInstrumentCovenantMaximumTrailingTwelveMonthInterestIncurred" abstract="false" name="DebtInstrumentCovenantMaximumTrailingTwelveMonthInterestIncurred" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="uhg_DebtInstrumentCovenantUnrestrictedMinimumLiquidityIfDebtServiceCoverageRatioIsLessThanThresholdAmount" abstract="false" name="DebtInstrumentCovenantUnrestrictedMinimumLiquidityIfDebtServiceCoverageRatioIsLessThanThresholdAmount" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="uhg_DebtInstrumentCovenantMaximumNumberOfTimesQuarterlyLeverageRatioCanExceedMaximumThreshold" abstract="false" name="DebtInstrumentCovenantMaximumNumberOfTimesQuarterlyLeverageRatioCanExceedMaximumThreshold" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:decimalItemType"/>
  <xs:element id="uhg_DebtInstrumentCovenantTemporaryMinimumDebtServiceCoverageRatio" abstract="false" name="DebtInstrumentCovenantTemporaryMinimumDebtServiceCoverageRatio" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:decimalItemType"/>
  <xs:element id="uhg_DebtInstrumentCovenantMaximumNumberOfTimesDebtServiceCoverageRatioCanBeBelowTemporaryMinimumThreshold" abstract="false" name="DebtInstrumentCovenantMaximumNumberOfTimesDebtServiceCoverageRatioCanBeBelowTemporaryMinimumThreshold" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:decimalItemType"/>
  <xs:element id="uhg_DebtInstrumentCovenantDebtServiceCoverageRatioMinimumLastDayOfFiscalQuarterAfterTwoInstancesOfRatioLessThanThreshold" abstract="false" name="DebtInstrumentCovenantDebtServiceCoverageRatioMinimumLastDayOfFiscalQuarterAfterTwoInstancesOfRatioLessThanThreshold" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="uhg_DebtInstrumentCovenantMinimumLiquidityAmount" abstract="false" name="DebtInstrumentCovenantMinimumLiquidityAmount" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="uhg_DebtInstrumentCovenantUnrestrictedMinimumLiquidityAmount" abstract="false" name="DebtInstrumentCovenantUnrestrictedMinimumLiquidityAmount" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="uhg_PercentOfCapitalStockForSecurityInterest" abstract="false" name="PercentOfCapitalStockForSecurityInterest" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="uhg_LandDevelopmentExpenseMember" abstract="true" name="LandDevelopmentExpenseMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="uhg_OtherActivitiesMember" abstract="true" name="OtherActivitiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="uhg_LandDevelopmentAffiliatesMember" abstract="true" name="LandDevelopmentAffiliatesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="uhg_OtherOperatingAffiliatesMember" abstract="true" name="OtherOperatingAffiliatesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="uhg_TransferOfCoObligorDebtToLandDevelopmentAffiliate" abstract="false" name="TransferOfCoObligorDebtToLandDevelopmentAffiliate" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="uhg_TransferOfGuarantorFromGshToShareholder" abstract="false" name="TransferOfGuarantorFromGshToShareholder" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="uhg_AviationServicesMember" abstract="true" name="AviationServicesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="uhg_GeneralContractingMember" abstract="true" name="GeneralContractingMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="uhg_HomesPurchasedMember" abstract="true" name="HomesPurchasedMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="uhg_LotOptionContractMember" abstract="true" name="LotOptionContractMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="uhg_LandClosingCostsMember" abstract="true" name="LandClosingCostsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="uhg_CivilEngineeringServicesMember" abstract="true" name="CivilEngineeringServicesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="uhg_ConsultantMember" abstract="true" name="ConsultantMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="uhg_LesseeOperatingLeaseNumberOfAgreements" abstract="false" name="LesseeOperatingLeaseNumberOfAgreements" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="uhg_OverheadCostsAllocatedToRelatedParty" abstract="false" name="OverheadCostsAllocatedToRelatedParty" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="uhg_StreetMaintenanceRelatedParty" abstract="false" name="StreetMaintenanceRelatedParty" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="uhg_LotOptionContractDepositsForfeited" abstract="false" name="LotOptionContractDepositsForfeited" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="uhg_PurchaseOptionTotalContractValue" abstract="false" name="PurchaseOptionTotalContractValue" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="uhg_SaleLeasebackTransactionsMember" abstract="true" name="SaleLeasebackTransactionsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="uhg_DecemberSaleLeasebackMember" abstract="true" name="DecemberSaleLeasebackMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="uhg_NumberOfOfficeSpacesWithThirdParty" abstract="false" name="NumberOfOfficeSpacesWithThirdParty" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="uhg_RelatedPartyTransactionNumberHomesSold" abstract="false" name="RelatedPartyTransactionNumberHomesSold" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="uhg_SaleLeasebackTransactionUnitsSold" abstract="false" name="SaleLeasebackTransactionUnitsSold" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="uhg_OperatingLeasesLesseeOperatingLeaseNumberOfLeases" abstract="false" name="OperatingLeasesLesseeOperatingLeaseNumberOfLeases" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="uhg_SuretyBondsOutstanding" abstract="false" name="SuretyBondsOutstanding" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="uhg_LesseeOperatingLeaseLiabilityToBePaidAfterYearFour" abstract="false" name="LesseeOperatingLeaseLiabilityToBePaidAfterYearFour" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="uhg_ConvertibleNoteInvestorsMember" abstract="true" name="ConvertibleNoteInvestorsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="uhg_DebtInstrumentConvertiblePeriodOneMember" abstract="true" name="DebtInstrumentConvertiblePeriodOneMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="uhg_DebtInstrumentConvertiblePeriodTwoMember" abstract="true" name="DebtInstrumentConvertiblePeriodTwoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="uhg_AccruedAndUnpaidInterestRateOverWhichPikInterestElected" abstract="false" name="AccruedAndUnpaidInterestRateOverWhichPikInterestElected" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="uhg_DebtInstrumentRedemptionTermBeforeMaturityDate" abstract="false" name="DebtInstrumentRedemptionTermBeforeMaturityDate" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="uhg_MakeWholeAmountOfDebt" abstract="false" name="MakeWholeAmountOfDebt" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="uhg_EquityIncentivePlan2023Member" abstract="true" name="EquityIncentivePlan2023Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="uhg_OptionToPurchaseStockWarrantsMember" abstract="true" name="OptionToPurchaseStockWarrantsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="uhg_ShareBasedCompensationArrangementByShareBasedPaymentAwardIncreaseInSharesReservedAndAvailableForIssuanceAsPercentageOfNumberOfOutstandingShares" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardIncreaseInSharesReservedAndAvailableForIssuanceAsPercentageOfNumberOfOutstandingShares" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="uhg_ShareBasedPaymentArrangementVolumeWeightedAveragePriceThresholdTradingDays" abstract="false" name="ShareBasedPaymentArrangementVolumeWeightedAveragePriceThresholdTradingDays" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="uhg_ShareBasedPaymentArrangementVolumeWeightedAveragePriceThresholdConsecutiveTradingDays" abstract="false" name="ShareBasedPaymentArrangementVolumeWeightedAveragePriceThresholdConsecutiveTradingDays" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="uhg_ShareBasedPaymentArrangementVolumeWeightedAverageStockPriceTrigger" abstract="false" name="ShareBasedPaymentArrangementVolumeWeightedAverageStockPriceTrigger" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="uhg_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExercisedInPeriod" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExercisedInPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="uhg_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExercisedInPeriodWeightedAverageGrantDateFairValue" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExercisedInPeriodWeightedAverageGrantDateFairValue" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="uhg_EarnoutSharesTable" abstract="true" name="EarnoutSharesTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="uhg_SponsorSupportAgreementMember" abstract="true" name="SponsorSupportAgreementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="uhg_ContingentConsiderationPeriodAxis" abstract="true" name="ContingentConsiderationPeriodAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="uhg_ContingentConsiderationPeriodDomain" abstract="true" name="ContingentConsiderationPeriodDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="uhg_TriggeringEventIMember" abstract="true" name="TriggeringEventIMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="uhg_TriggeringEventIiMember" abstract="true" name="TriggeringEventIiMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="uhg_TriggeringEventIiiMember" abstract="true" name="TriggeringEventIiiMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="uhg_EarnoutSharesLineItems" abstract="true" name="EarnoutSharesLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="uhg_DerivativeInstrumentContingentConsiderationLiabilityEarnoutPeriod" abstract="false" name="DerivativeInstrumentContingentConsiderationLiabilityEarnoutPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="uhg_DerivativeInstrumentContingentConsiderationLiabilitySurrenderedShares" abstract="false" name="DerivativeInstrumentContingentConsiderationLiabilitySurrenderedShares" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="uhg_EarnoutMilestonesThresholdVolumeWeightedAverageStockPriceTrigger" abstract="false" name="EarnoutMilestonesThresholdVolumeWeightedAverageStockPriceTrigger" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="uhg_DerivativeInstrumentThresholdTradingDays" abstract="false" name="DerivativeInstrumentThresholdTradingDays" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="uhg_DerivativeInstrumentThresholdConsecutiveTradingDays" abstract="false" name="DerivativeInstrumentThresholdConsecutiveTradingDays" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="uhg_PercentageOfTranchesForIssuanceOfEarnOutShares" abstract="false" name="PercentageOfTranchesForIssuanceOfEarnOutShares" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="uhg_DerivativeInstrumentContingentConsiderationLiabilityUnitsOfAccount" abstract="false" name="DerivativeInstrumentContingentConsiderationLiabilityUnitsOfAccount" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="uhg_DerivativeInstrumentContingentConsiderationLiabilityFairValueOfEarnoutSharesIssuablePerShare" abstract="false" name="DerivativeInstrumentContingentConsiderationLiabilityFairValueOfEarnoutSharesIssuablePerShare" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="uhg_DerivativeLiabilityMember" abstract="true" name="DerivativeLiabilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="uhg_StockCompensationMember" abstract="true" name="StockCompensationMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="uhg_StockPriceTargetsMember" abstract="true" name="StockPriceTargetsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="uhg_MeasurementInputEarnoutPeriodMember" abstract="true" name="MeasurementInputEarnoutPeriodMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="uhg_ClassOfWarrantOrRightNumberOfSecuritiesForfeited" abstract="false" name="ClassOfWarrantOrRightNumberOfSecuritiesForfeited" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="uhg_EffectiveIncomeTaxRateReconciliationGainLossOnExtinguishmentOfConvertibleDebtAmount" abstract="false" name="EffectiveIncomeTaxRateReconciliationGainLossOnExtinguishmentOfConvertibleDebtAmount" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="uhg_EffectiveIncomeTaxRateReconciliationChangeInFairValueOfDerivativeLiabilitiesPercent" abstract="false" name="EffectiveIncomeTaxRateReconciliationChangeInFairValueOfDerivativeLiabilitiesPercent" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="uhg_EffectiveIncomeTaxRateReconciliationChangeInTaxStatusAmount" abstract="false" name="EffectiveIncomeTaxRateReconciliationChangeInTaxStatusAmount" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="uhg_EffectiveIncomeTaxRateReconciliationGainLossOnExtinguishmentOfConvertibleDebtPercent" abstract="false" name="EffectiveIncomeTaxRateReconciliationGainLossOnExtinguishmentOfConvertibleDebtPercent" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="uhg_EffectiveIncomeTaxRateReconciliationChangeInFairValueOfDerivativeLiabilitiesAmount" abstract="false" name="EffectiveIncomeTaxRateReconciliationChangeInFairValueOfDerivativeLiabilitiesAmount" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="uhg_EffectiveIncomeTaxRateReconciliationChangeInTaxStatusPercent" abstract="false" name="EffectiveIncomeTaxRateReconciliationChangeInTaxStatusPercent" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="uhg_DeferredTaxAssetsUniformCapitalizationRules" abstract="false" name="DeferredTaxAssetsUniformCapitalizationRules" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="uhg_DeferredTaxAssetsInterestExpense" abstract="false" name="DeferredTaxAssetsInterestExpense" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="uhg_DeferredTaxAssetsOperatingLeaseLiabilities" abstract="false" name="DeferredTaxAssetsOperatingLeaseLiabilities" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="uhg_DeferredTaxAssetsStartUpAndOrganizationsCosts" abstract="false" name="DeferredTaxAssetsStartUpAndOrganizationsCosts" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="uhg_DeferredTaxLiabilitiesAdjustmentsAfterAccountingMethodChange" abstract="false" name="DeferredTaxLiabilitiesAdjustmentsAfterAccountingMethodChange" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="uhg_DefinedContributionPlanMinimumServicePeriod" abstract="false" name="DefinedContributionPlanMinimumServicePeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="uhg_DefinedContributionPlanEmployerMatchingContributionPercentOfEmployeesGrossPayOne" abstract="false" name="DefinedContributionPlanEmployerMatchingContributionPercentOfEmployeesGrossPayOne" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="uhg_DefinedContributionPlanEmployerMatchingContributionPercentOfMatchOne" abstract="false" name="DefinedContributionPlanEmployerMatchingContributionPercentOfMatchOne" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="uhg_DefinedContributionPlanEmployerMatchingContributionPercentOfMatchTwo" abstract="false" name="DefinedContributionPlanEmployerMatchingContributionPercentOfMatchTwo" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="uhg_DefinedContributionPlanEmployerMatchingContributionPercentOfEmployeesGrossPayTwo" abstract="false" name="DefinedContributionPlanEmployerMatchingContributionPercentOfEmployeesGrossPayTwo" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="uhg_DefinedContributionPlanVestingPercentageAfterCompletingSixYearsOfService" abstract="false" name="DefinedContributionPlanVestingPercentageAfterCompletingSixYearsOfService" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="uhg_DefinedContributionPlanServiceTermRequiredForFullVesting" abstract="false" name="DefinedContributionPlanServiceTermRequiredForFullVesting" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="uhg_EmployeeStockOptionEquityClassifiedMember" abstract="true" name="EmployeeStockOptionEquityClassifiedMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="uhg_EmployeeStockOptionLiabilityClassifiedMember" abstract="true" name="EmployeeStockOptionLiabilityClassifiedMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="uhg_ChangeInFairValueOfStockOptionsLiabilityClassifiedNetOfTax" abstract="false" name="ChangeInFairValueOfStockOptionsLiabilityClassifiedNetOfTax" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="uhg_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsWeightedAverageAmountPerShare" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsWeightedAverageAmountPerShare" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="uhg_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsConsecutiveTradingDays" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsConsecutiveTradingDays" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="uhg_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsThresholdConsecutiveTradingDays" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsThresholdConsecutiveTradingDays" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="uhg_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsConsecutiveTradingDays" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsConsecutiveTradingDays" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="uhg_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsThresholdConsecutiveTradingDays" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsThresholdConsecutiveTradingDays" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
</xs:schema>
