diff --git a/.gitignore b/.gitignore
index f8d5d06..3aa2827 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,6 +1,7 @@
 output_files/*
 !output_files/.gitkeep
 draft_lca_wf/
+__pycache__
 
 *.geojson
 input_files/*.geojson
diff --git a/building_component_surface.py b/building_component_surface.py
new file mode 100644
index 0000000..e69de29