diff --git a/infrastructure/postgres/property_override_table.py b/infrastructure/postgres/property_override_table.py
index 3132ddf5..40490144 100644
--- a/infrastructure/postgres/property_override_table.py
+++ b/infrastructure/postgres/property_override_table.py
@@ -27,6 +27,11 @@ override_component_sa_enum = SAEnum(
     "roof_type",
     "property_type",
     "built_form_type",
+    "main_fuel",
+    "glazing",
+    "construction_age_band",
+    "water_heating",
+    "main_heating_system",
     name="override_component",
 )
 
diff --git a/tests/repositories/property/test_override_component_consistency.py b/tests/repositories/property/test_override_component_consistency.py
index df830cd0..3f7f4d31 100644
--- a/tests/repositories/property/test_override_component_consistency.py
+++ b/tests/repositories/property/test_override_component_consistency.py
@@ -14,6 +14,7 @@ from __future__ import annotations
 from infrastructure.landlord_overrides.landlord_override_reader_postgres_repository import (  # pyright: ignore[reportPrivateUsage]
     _ROW_TYPES,
 )
+from infrastructure.postgres.property_override_table import override_component_sa_enum
 from repositories.property.landlord_override_overlays import (  # pyright: ignore[reportPrivateUsage]
     _COMPONENT_OVERLAYS,
 )
@@ -22,3 +23,10 @@ from repositories.property.landlord_override_overlays import (  # pyright: ignor
 def test_reader_and_overlay_registries_cover_the_same_components() -> None:
     # Assert
     assert set(_ROW_TYPES) == set(_COMPONENT_OVERLAYS)
+
+
+def test_override_component_pgenum_covers_every_component() -> None:
+    # The property_overrides.override_component pgEnum mirror must list every
+    # component, or writing/reading a new-component row through it throws a
+    # LookupError against Postgres (caught live on the Hyde portfolio-796 run).
+    assert set(override_component_sa_enum.enums) == set(_COMPONENT_OVERLAYS)