diff --git a/asset_list/AssetList.py b/asset_list/AssetList.py
index b153b624..8379cc2a 100644
--- a/asset_list/AssetList.py
+++ b/asset_list/AssetList.py
@@ -218,8 +218,9 @@ class AssetList:
     STANDARD_ADDRESS_1 = "domna_address_1"
     STANDARD_POSTCODE = "domna_postcode"
     STANDARD_FULL_ADDRESS = "domna_full_address"
-    STANDARD_YEAR_BUILT = "domna_year_built"
+    STANDARD_YEAR_BUILT = "landlord_year_built"
     STANDARD_UPRN = "ordnance_survey_uprn"
+    STANDARD_LANDLORD_PROPERTY_ID = "landlord_property_id"
     STANDARD_PROPERTY_TYPE = "landlord_property_type"
     STANDARD_WALL_CONSTRUCTION = "landlord_wall_construction"
     STANDARD_HEATING_SYSTEM = "landlord_heating_system"
@@ -293,6 +294,8 @@ class AssetList:
 
         self.variable_mappings = {}
 
+        self.rename_map = {}
+
     def _extract_address1(self, asset_list, full_address_col, postcode_col, method="first_two_words"):
 
         if method not in self.ADDRESS_1_CLEANING_METHODS:
@@ -359,6 +362,25 @@ class AssetList:
             # We look for string in the form (x-y)
             return bool(cls.MULTI_UNIT_REGEX.search(address1_section))
 
+    @staticmethod
+    def _convert_uprn(x):
+        """
+        Used to convert UPRNS to integer strings
+        :param x: uprn to convert
+        :return: converted uprn
+        """
+
+        if pd.isnull(x):
+            return x
+
+        # check if numeric
+        if np.isreal(x):
+            return str(int(x))
+
+        if str(x).isdigit():
+            return str(int(x))
+        return x
+
     def init_standardise(self):
         """
         This function is used to standardise the asset list
@@ -411,6 +433,12 @@ class AssetList:
         # We create the domna property id
         self.create_property_id()
 
+        # Clean up the UPRN column, if the landlord has provided them
+        if self.landlord_uprn is not None:
+            self.standardised_asset_list[self.landlord_uprn] = (
+                self.standardised_asset_list[self.landlord_uprn].apply(self._convert_uprn)
+            )
+
         # We keep just the columns we care about and will work through the various columns and standardise
         variables = [
             self.landlord_property_id,
@@ -425,7 +453,21 @@ class AssetList:
             self.landlord_heating_system,
             self.landlord_existing_pv
         ]
-        rename = {}
+        # Keep just non-null variables (e.g landlord may not provide uprn
+        variables = [v for v in variables if v is not None]
+        rename = {
+            self.landlord_property_id: self.STANDARD_LANDLORD_PROPERTY_ID,
+            self.address1_colname: self.STANDARD_ADDRESS_1,
+            self.postcode_colname: self.STANDARD_POSTCODE,
+            self.full_address_colname: self.STANDARD_FULL_ADDRESS,
+            self.landlord_uprn: self.STANDARD_UPRN,
+            self.landlord_property_type: self.STANDARD_PROPERTY_TYPE,
+            self.landlord_year_built: self.STANDARD_YEAR_BUILT,
+            self.landlord_wall_construction: self.STANDARD_WALL_CONSTRUCTION,
+            self.landlord_heating_system: self.STANDARD_HEATING_SYSTEM,
+            self.landlord_existing_pv: self.STANDARD_EXISTING_PV
+        }
+        rename = {k: v for k, v in rename.items() if k is not None}
 
         if self.non_intrusives_present:
             variables += self.NON_INTRUSIVES_COLNAMES
@@ -538,5 +580,10 @@ class AssetList:
                 ~self.standardised_asset_list[self.DOMNA_PROPERTY_ID].duplicated()
             ]
 
+        # Apply renames to our standard names
+        self.standardised_asset_list = self.standardised_asset_list.rename(
+            columns=self.rename_map
+        )
+
     def create_lookup_mappings(self):
         pass