diff --git a/asset_list/AssetList.py b/asset_list/AssetList.py
index 72086c60..0156a2a3 100644
--- a/asset_list/AssetList.py
+++ b/asset_list/AssetList.py
@@ -233,7 +233,8 @@ class AssetList:
         "secondheat-description": "epc_secondary_heating",
         "transaction-type": "epc_reason",
         "energy-consumption-current": "epc_heat_demand",
-        "photo-supply": "epc_photo_supply"
+        "photo-supply": "epc_photo_supply",
+        "estimated": "estimated"
     }
     FIND_EPC_DATA_NAMES = {
         "heating_text": "epc_estiamted_heating_kwh",
@@ -714,6 +715,22 @@ class AssetList:
             columns=self.rename_map
         )
 
+        # We fill any standard columns that are not in the data because they were not provided by the landlord
+        missing_variables = [
+            v for v in [
+                self.STANDARD_EXISTING_PV,
+                self.STANDARD_HEATING_SYSTEM,
+                self.STANDARD_UPRN,
+                self.STANDARD_PROPERTY_TYPE,
+                self.STANDARD_YEAR_BUILT,
+                self.STANDARD_WALL_CONSTRUCTION,
+                self.STANDARD_HEATING_SYSTEM,
+                self.STANDARD_EXISTING_PV
+            ] if v not in self.standardised_asset_list.columns
+        ]
+        for v in missing_variables:
+            self.standardised_asset_list[v] = None
+
     def merge_data(self, df: pd.DataFrame):
         """
         Used to insert data into the standardised asset list, based on the domna property id
@@ -963,7 +980,6 @@ class AssetList:
             # Extraction
             ######################################################
 
-            # TODO When filterting like this, 627 properties are flagged as not needing a CIGA check and 582 are flagged
             # as needing a CIGA check. What is the logic we should be applying here?
             self.standardised_asset_list["non_intrusive_indicates_cavity_extraction"] = (
                 (self.standardised_asset_list["non-intrusives: Construction"] == "CAVITY") &
@@ -974,6 +990,15 @@ class AssetList:
                 )
             )
 
+            z = self.standardised_asset_list[
+                self.standardised_asset_list["non-intrusives: CIGA Check Required"] == "YES"
+                ]
+            z["non-intrusives: Insulated"].value_counts()
+            z["non-intrusives: Material"].value_counts()
+            z[self.ATTRIBUTE_SAP_THRESHOLD_AND_BELOW].value_counts()
+            z[self.EPC_API_DATA_NAMES["current-energy-efficiency"]].max()
+            zz = z[z[self.EPC_API_DATA_NAMES["current-energy-efficiency"]] == 105]
+
             ######################################################
             # Solar
             ######################################################