diff --git a/.gitignore b/.gitignore
index 9c77b311..0bf9e0e9 100644
--- a/.gitignore
+++ b/.gitignore
@@ -313,3 +313,8 @@ scripts/eon/epc_cache.pkl
 scripts/hyde/.elmhurst-session/
 scripts/hyde/elmhurst_downloads/
 scripts/hyde/.elmhurst-creds.json
+
+# Hyde property-overrides script artifacts
+overrides_cache.json
+overrides_unknowns.csv
+overrides_edits.csv
diff --git a/scripts/hyde/build_property_overrides.py b/scripts/hyde/build_property_overrides.py
index 05d70d2d..dc77b520 100644
--- a/scripts/hyde/build_property_overrides.py
+++ b/scripts/hyde/build_property_overrides.py
@@ -41,7 +41,7 @@ from datetime import datetime, timezone
 from enum import Enum
 from typing import Any, Optional
 
-import pandas as pd
+import pandas as pd  # pyright: ignore[reportMissingTypeStubs]
 from sqlalchemy import Table, text
 from sqlalchemy.dialects.postgresql import insert as pg_insert
 from sqlmodel import SQLModel
diff --git a/tests/scripts/test_build_property_overrides_smoke.py b/tests/scripts/test_build_property_overrides_smoke.py
index 77a458aa..59db45e5 100644
--- a/tests/scripts/test_build_property_overrides_smoke.py
+++ b/tests/scripts/test_build_property_overrides_smoke.py
@@ -25,6 +25,10 @@ from domain.epc.property_overrides.water_heating_type import WaterHeatingType
 from infrastructure.landlord_overrides.landlord_overrides_postgres_repository import (
     LandlordOverridesRepository,
 )
+from repositories.property.landlord_override_overlays import overlays_from
+from repositories.property.property_overrides_postgres_reader import (
+    PropertyOverridesPostgresReader,
+)
 
 PORTFOLIO = 795
 ORG_REF = "55180004001"
@@ -36,7 +40,7 @@ SEED = {
     "property_type": ("House: MidTerrace", PropertyType.HOUSE),
     "built_form_type": ("House: MidTerrace", BuiltFormType.MID_TERRACE),
     "wall_type": ("TimberFrame: AsBuilt", WallType.TIMBER_FRAME_AS_BUILT_NO_INSULATION_ASSUMED),
-    "roof_type": ("PitchedNormalLoftAccess: 300mm", RoofType.PITCHED_300_MM),
+    "roof_type": ("PitchedNormalLoftAccess: 300mm", RoofType.PITCHED_LOFT_300MM),
     "construction_age_band": ("L: 2012-2022", ConstructionAgeBand.L_2012_2022),
     "main_fuel": ("Gas: Mains Gas", MainFuelType.MAINS_GAS),
     "glazing": ("100% Double glazing 2002 or later", GlazingType.DOUBLE_POST_2002),
@@ -45,20 +49,21 @@ SEED = {
 }
 
 
-def test_one_property_end_to_end(db_engine: Engine, monkeypatch: Any, capsys: Any) -> None:
-    specs = b._specs_by_component()
+def test_one_property_end_to_end(db_engine: Engine, monkeypatch: Any) -> None:
+    specs = b._specs_by_component()  # pyright: ignore[reportPrivateUsage]
 
     # minimal FE-owned `property` table + the one row we'll match by org_ref
     with Session(db_engine) as s:
-        s.execute(text(
+        s.execute(text(  # pyright: ignore[reportDeprecated]
             "CREATE TABLE property (id bigint PRIMARY KEY, portfolio_id bigint, "
             "landlord_property_id text)"))
-        s.execute(text("INSERT INTO property VALUES (1, :p, :ref)"),
+        s.execute(text("INSERT INTO property VALUES (1, :p, :ref)"),  # pyright: ignore[reportDeprecated]
                   {"p": PORTFOLIO, "ref": ORG_REF})
         # seed the classifier ledger (keyed on normalised description)
         for comp, (raw, member) in SEED.items():
-            LandlordOverridesRepository(s, specs[comp].row_type).upsert_all(
-                PORTFOLIO, {b._norm(raw): member})
+            repo: LandlordOverridesRepository[Any] = LandlordOverridesRepository(
+                s, specs[comp].row_type)
+            repo.upsert_all(PORTFOLIO, {b._norm(raw): member})  # pyright: ignore[reportPrivateUsage]
         s.commit()
 
     # point the script at the ephemeral engine
@@ -69,7 +74,7 @@ def test_one_property_end_to_end(db_engine: Engine, monkeypatch: Any, capsys: An
             portfolio_id=PORTFOLIO, org_ref=ORG_REF, limit=None, apply=True))
 
     with Session(db_engine) as s:
-        rows = list(s.execute(text(
+        rows = list(s.execute(text(  # pyright: ignore[reportDeprecated]
             "SELECT override_component, building_part, override_value "
             "FROM property_overrides WHERE property_id = 1 ORDER BY override_component")))
     got = {c: v for c, _, v in rows}
@@ -81,8 +86,10 @@ def test_one_property_end_to_end(db_engine: Engine, monkeypatch: Any, capsys: An
     assert got["water_heating"] == "From main system, mains gas"
     assert len(rows) == 9  # all 9 components
 
-    # --- run the real verify() and confirm overlays are produced ---
-    b.verify(argparse.Namespace(portfolio_id=PORTFOLIO, org_ref=ORG_REF))
-    out = capsys.readouterr().out
-    print(out)  # surfaced with -s so we can eyeball the one-property result
-    assert "EpcSimulation overlay" in out
+    # --- the overrides reach the SAP overlay surface ---
+    b.verify(argparse.Namespace(portfolio_id=PORTFOLIO, org_ref=ORG_REF))  # exercises verify()
+    overlays = overlays_from(
+        PropertyOverridesPostgresReader(lambda: Session(db_engine)).overrides_for(1))
+    assert len(overlays) == 9
+    assert any(o.heating is not None and o.heating.main_fuel_type == 26 for o in overlays)
+    assert any(o.glazing is not None and o.glazing.glazing_type == 2 for o in overlays)