diff --git a/tests/repositories/historic_epc/test_historic_epc_resolver.py b/tests/repositories/historic_epc/test_historic_epc_resolver.py
index a22c14b8d..aa4307276 100644
--- a/tests/repositories/historic_epc/test_historic_epc_resolver.py
+++ b/tests/repositories/historic_epc/test_historic_epc_resolver.py
@@ -51,3 +51,26 @@ def test_match_composes_repo_and_matcher_into_scored_matches():
     assert result.postcode == "AB338AL"
     assert len(result.matches) == 2
     assert result.top().record.address == "47 GORDON ROAD"
+
+
+def test_resolve_uprn_returns_unambiguous_match():
+    # Arrange
+    repo = _FakeRepo(
+        {
+            "AB338AL": [
+                _hist("47 GORDON ROAD", "100"),
+                _hist("48 GORDON ROAD", "200"),
+            ]
+        }
+    )
+    resolver = HistoricEpcResolver(repo)
+
+    # Act
+    result = resolver.resolve_uprn("47 Gordon Road", "AB33 8AL")
+
+    # Assert
+    assert result is not None
+    uprn, address, score = result
+    assert uprn == "100"
+    assert address == "47 GORDON ROAD"
+    assert score > 0