<?xml version="1.0" encoding="utf-8"?>
<linkbase
  xmlns="http://www.xbrl.org/2003/linkbase"
  xmlns:xbrli="http://www.xbrl.org/2003/instance"
  xmlns:xlink="http://www.w3.org/1999/xlink"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
    <labelLink
      xlink:role="http://www.xbrl.org/2003/role/link"
      xlink:type="extended">
        <loc
          xlink:href="altareit-2024-12-31.xsd#altareit_CustomerRelationship"
          xlink:label="altareit_CustomerRelationship"
          xlink:type="locator"/>
        <labelArc
          order="1"
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label"
          xlink:from="altareit_CustomerRelationship"
          xlink:to="label_altareit_CustomerRelationship"
          xlink:type="arc"/>
        <label
          xlink:label="label_altareit_CustomerRelationship"
          xlink:role="http://www.xbrl.org/2003/role/label"
          xlink:type="resource"
          xml:lang="fr">Relations Clientèles</label>
        <loc
          xlink:href="altareit-2024-12-31.xsd#altareit_OtherIntangibleAssetsOtherThanCustomerRelationshipGoodwillAndBrandNames"
          xlink:label="altareit_OtherIntangibleAssetsOtherThanCustomerRelationshipGoodwillAndBrandNames"
          xlink:type="locator"/>
        <labelArc
          order="1"
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label"
          xlink:from="altareit_OtherIntangibleAssetsOtherThanCustomerRelationshipGoodwillAndBrandNames"
          xlink:to="label_altareit_OtherIntangibleAssetsOtherThanCustomerRelationshipGoodwillAndBrandNames"
          xlink:type="arc"/>
        <label
          xlink:label="label_altareit_OtherIntangibleAssetsOtherThanCustomerRelationshipGoodwillAndBrandNames"
          xlink:role="http://www.xbrl.org/2003/role/label"
          xlink:type="resource"
          xml:lang="fr">Autres immobilisations incorporelles</label>
        <loc
          xlink:href="altareit-2024-12-31.xsd#altareit_InvestmentPropertyAtFairValue"
          xlink:label="altareit_InvestmentPropertyAtFairValue"
          xlink:type="locator"/>
        <labelArc
          order="1"
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label"
          xlink:from="altareit_InvestmentPropertyAtFairValue"
          xlink:to="label_altareit_InvestmentPropertyAtFairValue"
          xlink:type="arc"/>
        <label
          xlink:label="label_altareit_InvestmentPropertyAtFairValue"
          xlink:role="http://www.xbrl.org/2003/role/label"
          xlink:type="resource"
          xml:lang="fr">dont Immeubles de placement évalués à la juste valeur</label>
        <loc
          xlink:href="altareit-2024-12-31.xsd#altareit_InvestmentPropertyAtAmortizedCost"
          xlink:label="altareit_InvestmentPropertyAtAmortizedCost"
          xlink:type="locator"/>
        <labelArc
          order="1"
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label"
          xlink:from="altareit_InvestmentPropertyAtAmortizedCost"
          xlink:to="label_altareit_InvestmentPropertyAtAmortizedCost"
          xlink:type="arc"/>
        <label
          xlink:label="label_altareit_InvestmentPropertyAtAmortizedCost"
          xlink:role="http://www.xbrl.org/2003/role/label"
          xlink:type="resource"
          xml:lang="fr">dont Immeubles de placement évalués au coût</label>
        <loc
          xlink:href="altareit-2024-12-31.xsd#altareit_RightOfUseOnInvestmentPropertyAtFairValue"
          xlink:label="altareit_RightOfUseOnInvestmentPropertyAtFairValue"
          xlink:type="locator"/>
        <labelArc
          order="1"
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label"
          xlink:from="altareit_RightOfUseOnInvestmentPropertyAtFairValue"
          xlink:to="label_altareit_RightOfUseOnInvestmentPropertyAtFairValue"
          xlink:type="arc"/>
        <label
          xlink:label="label_altareit_RightOfUseOnInvestmentPropertyAtFairValue"
          xlink:role="http://www.xbrl.org/2003/role/label"
          xlink:type="resource"
          xml:lang="fr">dont Droits d’utilisation sur Immeubles de placement</label>
        <loc
          xlink:href="altareit-2024-12-31.xsd#altareit_InvestmentAndReceivablesAccountedForUsingEquityMethod"
          xlink:label="altareit_InvestmentAndReceivablesAccountedForUsingEquityMethod"
          xlink:type="locator"/>
        <labelArc
          order="1"
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label"
          xlink:from="altareit_InvestmentAndReceivablesAccountedForUsingEquityMethod"
          xlink:to="label_altareit_InvestmentAndReceivablesAccountedForUsingEquityMethod"
          xlink:type="arc"/>
        <label
          xlink:label="label_altareit_InvestmentAndReceivablesAccountedForUsingEquityMethod"
          xlink:role="http://www.xbrl.org/2003/role/label"
          xlink:type="resource"
          xml:lang="fr">Titres et créances sur les sociétés mises en équivalence</label>
        <loc
          xlink:href="altareit-2024-12-31.xsd#altareit_CurrentDerivativeFinancialAssetsHeldForTrading"
          xlink:label="altareit_CurrentDerivativeFinancialAssetsHeldForTrading"
          xlink:type="locator"/>
        <labelArc
          order="1"
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label"
          xlink:from="altareit_CurrentDerivativeFinancialAssetsHeldForTrading"
          xlink:to="label_altareit_CurrentDerivativeFinancialAssetsHeldForTrading"
          xlink:type="arc"/>
        <label
          xlink:label="label_altareit_CurrentDerivativeFinancialAssetsHeldForTrading"
          xlink:role="http://www.xbrl.org/2003/role/label"
          xlink:type="resource"
          xml:lang="fr">Instruments financiers dérivés</label>
        <loc
          xlink:href="altareit-2024-12-31.xsd#altareit_RetainedEarningsAndOtherReservesAttributableToOwnersOfParent"
          xlink:label="altareit_RetainedEarningsAndOtherReservesAttributableToOwnersOfParent"
          xlink:type="locator"/>
        <labelArc
          order="1"
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label"
          xlink:from="altareit_RetainedEarningsAndOtherReservesAttributableToOwnersOfParent"
          xlink:to="label_altareit_RetainedEarningsAndOtherReservesAttributableToOwnersOfParent"
          xlink:type="arc"/>
        <label
          xlink:label="label_altareit_RetainedEarningsAndOtherReservesAttributableToOwnersOfParent"
          xlink:role="http://www.xbrl.org/2003/role/label"
          xlink:type="resource"
          xml:lang="fr">Réserves</label>
        <loc
          xlink:href="altareit-2024-12-31.xsd#altareit_RetainedEarningsAndOtherReservesAttributableToNonControllingInterests"
          xlink:label="altareit_RetainedEarningsAndOtherReservesAttributableToNonControllingInterests"
          xlink:type="locator"/>
        <labelArc
          order="1"
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label"
          xlink:from="altareit_RetainedEarningsAndOtherReservesAttributableToNonControllingInterests"
          xlink:to="label_altareit_RetainedEarningsAndOtherReservesAttributableToNonControllingInterests"
          xlink:type="arc"/>
        <label
          xlink:label="label_altareit_RetainedEarningsAndOtherReservesAttributableToNonControllingInterests"
          xlink:role="http://www.xbrl.org/2003/role/label"
          xlink:type="resource"
          xml:lang="fr">Réserves, part des actionnaires minoritaires des ﬁliales</label>
        <loc
          xlink:href="altareit-2024-12-31.xsd#altareit_EquityProfitLossAttributableToNonControllingInterests"
          xlink:label="altareit_EquityProfitLossAttributableToNonControllingInterests"
          xlink:type="locator"/>
        <labelArc
          order="1"
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label"
          xlink:from="altareit_EquityProfitLossAttributableToNonControllingInterests"
          xlink:to="label_altareit_EquityProfitLossAttributableToNonControllingInterests"
          xlink:type="arc"/>
        <label
          xlink:label="label_altareit_EquityProfitLossAttributableToNonControllingInterests"
          xlink:role="http://www.xbrl.org/2003/role/label"
          xlink:type="resource"
          xml:lang="fr">Résultat, part des actionnaires minoritaires des ﬁliales</label>
        <loc
          xlink:href="altareit-2024-12-31.xsd#altareit_NoncurrentAdvancesFromGroupShareholdersAndPartners"
          xlink:label="altareit_NoncurrentAdvancesFromGroupShareholdersAndPartners"
          xlink:type="locator"/>
        <labelArc
          order="1"
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label"
          xlink:from="altareit_NoncurrentAdvancesFromGroupShareholdersAndPartners"
          xlink:to="label_altareit_NoncurrentAdvancesFromGroupShareholdersAndPartners"
          xlink:type="arc"/>
        <label
          xlink:label="label_altareit_NoncurrentAdvancesFromGroupShareholdersAndPartners"
          xlink:role="http://www.xbrl.org/2003/role/label"
          xlink:type="resource"
          xml:lang="fr">dont Avances Groupe et associés</label>
        <loc
          xlink:href="altareit-2024-12-31.xsd#altareit_NoncurrentDepositsAndSecurityInterestsReceived"
          xlink:label="altareit_NoncurrentDepositsAndSecurityInterestsReceived"
          xlink:type="locator"/>
        <labelArc
          order="1"
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label"
          xlink:from="altareit_NoncurrentDepositsAndSecurityInterestsReceived"
          xlink:to="label_altareit_NoncurrentDepositsAndSecurityInterestsReceived"
          xlink:type="arc"/>
        <label
          xlink:label="label_altareit_NoncurrentDepositsAndSecurityInterestsReceived"
          xlink:role="http://www.xbrl.org/2003/role/label"
          xlink:type="resource"
          xml:lang="fr">Dépôts et cautionnements reçus</label>
        <loc
          xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_BankOverdraftsClassifiedAsCashEquivalents"
          xlink:label="ifrs-full_BankOverdraftsClassifiedAsCashEquivalents"
          xlink:type="locator"/>
        <labelArc
          order="1"
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label"
          xlink:from="ifrs-full_BankOverdraftsClassifiedAsCashEquivalents"
          xlink:to="label_ifrs-full_BankOverdraftsClassifiedAsCashEquivalents"
          xlink:type="arc"/>
        <label
          xlink:label="label_ifrs-full_BankOverdraftsClassifiedAsCashEquivalents"
          xlink:role="http://www.xbrl.org/2003/role/periodStartLabel"
          xlink:type="resource"
          xml:lang="fr">Découverts bancaires d'ouverture</label>
        <label
          xlink:label="label_ifrs-full_BankOverdraftsClassifiedAsCashEquivalents"
          xlink:role="http://www.xbrl.org/2003/role/periodEndLabel"
          xlink:type="resource"
          xml:lang="fr">Découverts bancaires de clôture</label>
        <loc
          xlink:href="altareit-2024-12-31.xsd#altareit_CurrentAdvancesFromGroupShareholdersAndPartners"
          xlink:label="altareit_CurrentAdvancesFromGroupShareholdersAndPartners"
          xlink:type="locator"/>
        <labelArc
          order="1"
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label"
          xlink:from="altareit_CurrentAdvancesFromGroupShareholdersAndPartners"
          xlink:to="label_altareit_CurrentAdvancesFromGroupShareholdersAndPartners"
          xlink:type="arc"/>
        <label
          xlink:label="label_altareit_CurrentAdvancesFromGroupShareholdersAndPartners"
          xlink:role="http://www.xbrl.org/2003/role/label"
          xlink:type="resource"
          xml:lang="fr">dont Avances Groupe et associés</label>
        <loc
          xlink:href="altareit-2024-12-31.xsd#altareit_CurrentDerivativeFinancialLiabilitiesHeldForTrading"
          xlink:label="altareit_CurrentDerivativeFinancialLiabilitiesHeldForTrading"
          xlink:type="locator"/>
        <labelArc
          order="1"
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label"
          xlink:from="altareit_CurrentDerivativeFinancialLiabilitiesHeldForTrading"
          xlink:to="label_altareit_CurrentDerivativeFinancialLiabilitiesHeldForTrading"
          xlink:type="arc"/>
        <label
          xlink:label="label_altareit_CurrentDerivativeFinancialLiabilitiesHeldForTrading"
          xlink:role="http://www.xbrl.org/2003/role/label"
          xlink:type="resource"
          xml:lang="fr">Instruments ﬁnanciers dérivés</label>
        <loc
          xlink:href="altareit-2024-12-31.xsd#altareit_NetChargeToProvisionsForCurrentAssets"
          xlink:label="altareit_NetChargeToProvisionsForCurrentAssets"
          xlink:type="locator"/>
        <labelArc
          order="1"
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label"
          xlink:from="altareit_NetChargeToProvisionsForCurrentAssets"
          xlink:to="label_altareit_NetChargeToProvisionsForCurrentAssets"
          xlink:type="arc"/>
        <label
          xlink:label="label_altareit_NetChargeToProvisionsForCurrentAssets"
          xlink:role="http://www.xbrl.org/2003/role/label"
          xlink:type="resource"
          xml:lang="fr">Dotations nettes aux provisions sur actif circulant</label>
        <loc
          xlink:href="altareit-2024-12-31.xsd#altareit_ImpairmentLossOfCustomerRelatedIntangibleAssetsRecognisedAsOfAcquisitionDate"
          xlink:label="altareit_ImpairmentLossOfCustomerRelatedIntangibleAssetsRecognisedAsOfAcquisitionDate"
          xlink:type="locator"/>
        <labelArc
          order="1"
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label"
          xlink:from="altareit_ImpairmentLossOfCustomerRelatedIntangibleAssetsRecognisedAsOfAcquisitionDate"
          xlink:to="label_altareit_ImpairmentLossOfCustomerRelatedIntangibleAssetsRecognisedAsOfAcquisitionDate"
          xlink:type="arc"/>
        <label
          xlink:label="label_altareit_ImpairmentLossOfCustomerRelatedIntangibleAssetsRecognisedAsOfAcquisitionDate"
          xlink:role="http://www.xbrl.org/2003/role/label"
          xlink:type="resource"
          xml:lang="fr">Amortissement des relations clientèles</label>
        <loc
          xlink:href="altareit-2024-12-31.xsd#altareit_NetPropertyIncome"
          xlink:label="altareit_NetPropertyIncome"
          xlink:type="locator"/>
        <labelArc
          order="1"
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label"
          xlink:from="altareit_NetPropertyIncome"
          xlink:to="label_altareit_NetPropertyIncome"
          xlink:type="arc"/>
        <label
          xlink:label="label_altareit_NetPropertyIncome"
          xlink:role="http://www.xbrl.org/2003/role/label"
          xlink:type="resource"
          xml:lang="fr">Marge immobilière</label>
        <loc
          xlink:href="altareit-2024-12-31.xsd#altareit_DepreciationAndAmortisationExpenseIncludedInNetOverheadExpense"
          xlink:label="altareit_DepreciationAndAmortisationExpenseIncludedInNetOverheadExpense"
          xlink:type="locator"/>
        <labelArc
          order="1"
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label"
          xlink:from="altareit_DepreciationAndAmortisationExpenseIncludedInNetOverheadExpense"
          xlink:to="label_altareit_DepreciationAndAmortisationExpenseIncludedInNetOverheadExpense"
          xlink:type="arc"/>
        <label
          xlink:label="label_altareit_DepreciationAndAmortisationExpenseIncludedInNetOverheadExpense"
          xlink:role="http://www.xbrl.org/2003/role/label"
          xlink:type="resource"
          xml:lang="fr">Dotations aux amortissements des biens d’exploitation</label>
        <loc
          xlink:href="altareit-2024-12-31.xsd#altareit_NetOverheadExpense"
          xlink:label="altareit_NetOverheadExpense"
          xlink:type="locator"/>
        <labelArc
          order="1"
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label"
          xlink:from="altareit_NetOverheadExpense"
          xlink:to="label_altareit_NetOverheadExpense"
          xlink:type="arc"/>
        <label
          xlink:label="label_altareit_NetOverheadExpense"
          xlink:role="http://www.xbrl.org/2003/role/label"
          xlink:type="resource"
          xml:lang="fr">Frais de structure nets</label>
        <loc
          xlink:href="altareit-2024-12-31.xsd#altareit_MiscellaneousOtherOperatingIncomeExpense"
          xlink:label="altareit_MiscellaneousOtherOperatingIncomeExpense"
          xlink:type="locator"/>
        <labelArc
          order="1"
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label"
          xlink:from="altareit_MiscellaneousOtherOperatingIncomeExpense"
          xlink:to="label_altareit_MiscellaneousOtherOperatingIncomeExpense"
          xlink:type="arc"/>
        <label
          xlink:label="label_altareit_MiscellaneousOtherOperatingIncomeExpense"
          xlink:role="http://www.xbrl.org/2003/role/label"
          xlink:type="resource"
          xml:lang="fr">Autres produits et charges</label>
        <loc
          xlink:href="altareit-2024-12-31.xsd#altareit_OtherDepreciationExpense"
          xlink:label="altareit_OtherDepreciationExpense"
          xlink:type="locator"/>
        <labelArc
          order="1"
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label"
          xlink:from="altareit_OtherDepreciationExpense"
          xlink:to="label_altareit_OtherDepreciationExpense"
          xlink:type="arc"/>
        <label
          xlink:label="label_altareit_OtherDepreciationExpense"
          xlink:role="http://www.xbrl.org/2003/role/label"
          xlink:type="resource"
          xml:lang="fr">Dotations aux amortissements</label>
        <loc
          xlink:href="altareit-2024-12-31.xsd#altareit_ImpairmentLossReversalOfImpairmentLossOtherNoncurrentAssets"
          xlink:label="altareit_ImpairmentLossReversalOfImpairmentLossOtherNoncurrentAssets"
          xlink:type="locator"/>
        <labelArc
          order="1"
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label"
          xlink:from="altareit_ImpairmentLossReversalOfImpairmentLossOtherNoncurrentAssets"
          xlink:to="label_altareit_ImpairmentLossReversalOfImpairmentLossOtherNoncurrentAssets"
          xlink:type="arc"/>
        <label
          xlink:label="label_altareit_ImpairmentLossReversalOfImpairmentLossOtherNoncurrentAssets"
          xlink:role="http://www.xbrl.org/2003/role/label"
          xlink:type="resource"
          xml:lang="fr">Pertes de valeur nettes sur autres actifs immobilisés</label>
        <loc
          xlink:href="altareit-2024-12-31.xsd#altareit_NetChargeToProvisionsForRisksAndContingencies"
          xlink:label="altareit_NetChargeToProvisionsForRisksAndContingencies"
          xlink:type="locator"/>
        <labelArc
          order="1"
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label"
          xlink:from="altareit_NetChargeToProvisionsForRisksAndContingencies"
          xlink:to="label_altareit_NetChargeToProvisionsForRisksAndContingencies"
          xlink:type="arc"/>
        <label
          xlink:label="label_altareit_NetChargeToProvisionsForRisksAndContingencies"
          xlink:role="http://www.xbrl.org/2003/role/label"
          xlink:type="resource"
          xml:lang="fr">Dotations nettes aux provisions</label>
        <loc
          xlink:href="altareit-2024-12-31.xsd#altareit_ProfitLossFromOperatingActivitiesBeforeShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod"
          xlink:label="altareit_ProfitLossFromOperatingActivitiesBeforeShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod"
          xlink:type="locator"/>
        <labelArc
          order="1"
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label"
          xlink:from="altareit_ProfitLossFromOperatingActivitiesBeforeShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod"
          xlink:to="label_altareit_ProfitLossFromOperatingActivitiesBeforeShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod"
          xlink:type="arc"/>
        <label
          xlink:label="label_altareit_ProfitLossFromOperatingActivitiesBeforeShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod"
          xlink:role="http://www.xbrl.org/2003/role/label"
          xlink:type="resource"
          xml:lang="fr">Résultat opérationnel avant quote-part du résultat net des entreprises mises en équivalence</label>
        <loc
          xlink:href="altareit-2024-12-31.xsd#altareit_ProfitLossFromOperatingActivitiesAfterShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod"
          xlink:label="altareit_ProfitLossFromOperatingActivitiesAfterShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod"
          xlink:type="locator"/>
        <labelArc
          order="1"
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label"
          xlink:from="altareit_ProfitLossFromOperatingActivitiesAfterShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod"
          xlink:to="label_altareit_ProfitLossFromOperatingActivitiesAfterShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod"
          xlink:type="arc"/>
        <label
          xlink:label="label_altareit_ProfitLossFromOperatingActivitiesAfterShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod"
          xlink:role="http://www.xbrl.org/2003/role/label"
          xlink:type="resource"
          xml:lang="fr">Résultat opérationnel après quote-part du résultat net des entreprises mises en équivalence</label>
        <loc
          xlink:href="altareit-2024-12-31.xsd#altareit_CostOfNetDebt"
          xlink:label="altareit_CostOfNetDebt"
          xlink:type="locator"/>
        <labelArc
          order="1"
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label"
          xlink:from="altareit_CostOfNetDebt"
          xlink:to="label_altareit_CostOfNetDebt"
          xlink:type="arc"/>
        <label
          xlink:label="label_altareit_CostOfNetDebt"
          xlink:role="http://www.xbrl.org/2003/role/label"
          xlink:type="resource"
          xml:lang="fr">Coût de l’endettement net</label>
        <loc
          xlink:href="altareit-2024-12-31.xsd#altareit_CostsOfDebt"
          xlink:label="altareit_CostsOfDebt"
          xlink:type="locator"/>
        <labelArc
          order="1"
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label"
          xlink:from="altareit_CostsOfDebt"
          xlink:to="label_altareit_CostsOfDebt"
          xlink:type="arc"/>
        <label
          xlink:label="label_altareit_CostsOfDebt"
          xlink:role="http://www.xbrl.org/2003/role/label"
          xlink:type="resource"
          xml:lang="fr">Charges ﬁnancières</label>
        <loc
          xlink:href="altareit-2024-12-31.xsd#altareit_NetGainLossOnDisposalOfInvestments"
          xlink:label="altareit_NetGainLossOnDisposalOfInvestments"
          xlink:type="locator"/>
        <labelArc
          order="1"
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label"
          xlink:from="altareit_NetGainLossOnDisposalOfInvestments"
          xlink:to="label_altareit_NetGainLossOnDisposalOfInvestments"
          xlink:type="arc"/>
        <label
          xlink:label="label_altareit_NetGainLossOnDisposalOfInvestments"
          xlink:role="http://www.xbrl.org/2003/role/label"
          xlink:type="resource"
          xml:lang="fr">Résultats de cession des participations</label>
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          xml:lang="fr">Élimination des charges (produits) d’intérêts nettes et dividendes</label>
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          xml:lang="fr">Résultat net avant impôt et avant intérêts nets</label>
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          xml:lang="fr">Cession d’actifs immobilisés et remboursement d’avances et acomptes(a)</label>
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          xml:lang="fr">Variation nette des placements et des instruments ﬁnanciers dérivés</label>
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          xml:lang="fr">Émission d’emprunts et autres dettes ﬁnancières</label>
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          xml:lang="fr">Remboursement d’emprunts et autres dettes ﬁnancières</label>
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          xml:lang="fr">Variation nette des dépôts et cautionnements</label>
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          xml:lang="fr">Équivalents de trésorerie de clôture</label>
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          xml:lang="fr">Découverts bancaires</label>
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          xml:lang="fr">Découverts bancaires</label>
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          xml:lang="fr">Réserves et résultats non distribués</label>
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          xml:lang="fr">Faits significatifs et evolution du perimetre de consolidation</label>
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          xml:lang="fr">Actifs et tests de valeur</label>
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          xlink:role="http://www.xbrl.org/2003/role/label"
          xlink:type="resource"
          xml:lang="fr">Besoin en fonds de roulement d’exploitation</label>
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          xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label"
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          xlink:role="http://www.xbrl.org/2003/role/label"
          xlink:type="resource"
          xml:lang="fr">Endettement financier net et sûretés</label>
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