diff --git a/backend/hitas/models/housing_company.py b/backend/hitas/models/housing_company.py
index e9dfa900c..e701bcb32 100644
--- a/backend/hitas/models/housing_company.py
+++ b/backend/hitas/models/housing_company.py
@@ -279,6 +279,24 @@ def release_date(self) -> Optional[datetime.date]:
         # Release date was not found
         return None
 
+    @property
+    def property_manager_changed_at(self) -> Optional[datetime.datetime]:
+        latest_logentry: LogEntry = (
+            LogEntry.objects.get_for_object(self)
+            .annotate(changes_as_json=Cast("changes", output_field=models.JSONField()))
+            .filter(
+                action__in=[LogEntry.Action.UPDATE, LogEntry.Action.CREATE],
+                changes_as_json__property_manager__isnull=False,
+            )
+            # Ignore cases where property manager was not actually changed
+            .exclude(changes_as_json__property_manager__0=F("changes_as_json__property_manager__1"))
+            .order_by("-timestamp", "-id")
+            .first()
+        )
+        if latest_logentry is not None:
+            return latest_logentry.timestamp
+        return None
+
     class Meta:
         verbose_name = _("Housing company")
         verbose_name_plural = _("Housing companies")
diff --git a/backend/hitas/tests/apis/test_api_housing_company.py b/backend/hitas/tests/apis/test_api_housing_company.py
index 12144d5d5..3b58e46db 100644
--- a/backend/hitas/tests/apis/test_api_housing_company.py
+++ b/backend/hitas/tests/apis/test_api_housing_company.py
@@ -364,6 +364,7 @@ def test__api__housing_company__retrieve(api_client: HitasAPIClient, apt_with_nu
             "email": hc1.property_manager.email,
             "modified_at": serializers.DateTimeField().to_representation(hc1.property_manager.modified_at),
         },
+        "property_manager_changed_at": serializers.DateTimeField().to_representation(hc1.property_manager_changed_at),
         "acquisition_price": float(hc1.acquisition_price),
         "primary_loan": float(hc1.primary_loan),
         "sales_price_catalogue_confirmation_date": str(hc1.sales_price_catalogue_confirmation_date),
diff --git a/backend/hitas/views/housing_company.py b/backend/hitas/views/housing_company.py
index 48c685014..f1489857b 100644
--- a/backend/hitas/views/housing_company.py
+++ b/backend/hitas/views/housing_company.py
@@ -197,6 +197,7 @@ class HousingCompanyDetailSerializer(EnumSupportSerializerMixin, HitasModelSeria
     building_type = ReadOnlyBuildingTypeSerializer()
     developer = ReadOnlyDeveloperSerializer()
     property_manager = ReadOnlyPropertyManagerSerializer(allow_null=True, required=False)
+    property_manager_changed_at = serializers.DateTimeField(read_only=True)
     acquisition_price = HitasDecimalField()
     notes = serializers.CharField(required=False, allow_blank=True)
     archive_id = serializers.IntegerField(source="id", read_only=True)
@@ -348,6 +349,7 @@ class Meta:
             "building_type",
             "developer",
             "property_manager",
+            "property_manager_changed_at",
             "acquisition_price",
             "primary_loan",
             "sales_price_catalogue_confirmation_date",
diff --git a/backend/openapi.yaml b/backend/openapi.yaml
index 730984abc..e33c2f028 100644
--- a/backend/openapi.yaml
+++ b/backend/openapi.yaml
@@ -5652,6 +5652,13 @@ components:
         property_manager:
           nullable: true
           $ref: "#/components/schemas/ReadOnlyPropertyManager"
+        property_manager_changed_at:
+          description: When the property manager was last changed
+          type: string
+          nullable: true
+          readOnly: true
+          format: date-time
+          example: 1985-12-10T00:00:00+00:00
         summary:
           description: Summary data for this housing company across all apartments
           type: object
diff --git a/frontend/src/common/schemas/housingCompany.ts b/frontend/src/common/schemas/housingCompany.ts
index fff66b212..4daf2e4a4 100644
--- a/frontend/src/common/schemas/housingCompany.ts
+++ b/frontend/src/common/schemas/housingCompany.ts
@@ -105,6 +105,7 @@ export const HousingCompanyDetailsSchema = object({
     building_type: CodeSchema,
     developer: CodeSchema,
     property_manager: PropertyManagerSchema.nullable(),
+    property_manager_changed_at: string().optional(),
     acquisition_price: number(),
     primary_loan: number().optional(),
     sales_price_catalogue_confirmation_date: string().nullable(),
diff --git a/frontend/src/features/housingCompany/HousingCompanyDetailsPage.tsx b/frontend/src/features/housingCompany/HousingCompanyDetailsPage.tsx
index ebde3885d..fe1262111 100644
--- a/frontend/src/features/housingCompany/HousingCompanyDetailsPage.tsx
+++ b/frontend/src/features/housingCompany/HousingCompanyDetailsPage.tsx
@@ -109,10 +109,14 @@ const LoadedHousingCompanyDetails = (): React.JSX.Element => {
                                         )}
                                         {housingCompany.property_manager ? (
                                             <div className="detail-field-metadata">
-                                                Päivitetty viimeksi:{" "}
+                                                Vaihdettu:{" "}
                                                 {housingCompany.property_manager.modified_at
                                                     ? formatDate(housingCompany.property_manager.modified_at)
                                                     : "tieto puuttuu"}
+                                                , muokattu:{" "}
+                                                {housingCompany.property_manager_changed_at
+                                                    ? formatDate(housingCompany.property_manager_changed_at)
+                                                    : "tieto puuttuu"}
                                             </div>
                                         ) : null}
                                     </div>