diff --git a/etl/route_march/oo_prs_additional_units/oo_prs_additional_units.py b/etl/route_march/oo_prs_additional_units/oo_prs_additional_units.py
index c1b562ea..69e08f9a 100644
--- a/etl/route_march/oo_prs_additional_units/oo_prs_additional_units.py
+++ b/etl/route_march/oo_prs_additional_units/oo_prs_additional_units.py
@@ -131,10 +131,14 @@ def rename_and_add_columns(epcs):
         }
     )
 
+    epcs["Number of Habitable Rooms"] = epcs["Number of Habitable Rooms"].astype(int)
+    epcs["Property Floor Area"] = epcs["Property Floor Area"].astype(float)
+
     # Add additional columns as in your original code
     epcs["Estimated Number of Floors"] = epcs.apply(
         lambda x: estimate_number_of_floors(x["Property Type"]) if pd.notnull(x["Property Type"]) else None, axis=1
     )
+
     epcs["Estimated Perimeter (m)"] = epcs.apply(
         lambda x: estimate_perimeter(
             x["Property Floor Area"] / x["Estimated Number of Floors"],
@@ -167,7 +171,9 @@ def main():
     """
 
     # This should be set:
-    output_filepath = "/Users/khalimconn-kowlessar/Documents/hestia/Route Marches/PRS and OO properties - WC 11.11.2024"
+    output_filepath = (
+        "/Users/khalimconn-kowlessar/Documents/hestia/Route Marches/PRS and OO properties - WC 11.11.2024.xlsx"
+    )
     client = EpcClient(auth_token=EPC_AUTH_TOKEN)
     writer = pd.ExcelWriter(output_filepath, engine="xlsxwriter")