diff --git a/tests/backend/app/modelling/test_property_filters.py b/tests/backend/app/modelling/test_property_filters.py
index b9439cf51..0ee70154e 100644
--- a/tests/backend/app/modelling/test_property_filters.py
+++ b/tests/backend/app/modelling/test_property_filters.py
@@ -220,6 +220,26 @@ def test_epc_without_property_type_falls_back_to_dwelling_type(
     assert [p.property_id for p in resolved] == [fallback]
 
 
+def test_property_without_epc_falls_back_to_the_legacy_column(
+    db_engine: Engine,
+) -> None:
+    # arrange — no override, no EPC rows; only property.property_type
+    with Session(db_engine) as session:
+        legacy = _seed_property(session, portfolio_id=814)
+        session.get_one(PropertyRow, legacy).property_type = "Bungalow"
+        session.commit()
+
+        # act
+        resolved = resolve_filtered_property_ids(
+            session,
+            portfolio_id=814,
+            filters=PropertyGroupFilters(property_types=["Bungalow"]),
+        )
+
+    # assert
+    assert [p.property_id for p in resolved] == [legacy]
+
+
 def test_postcode_filter_matches_exactly(db_engine: Engine) -> None:
     # arrange
     with Session(db_engine) as session: