diff --git a/migrations/014.type-extension-1.up.sql b/migrations/014.type-extension-1.up.sql
new file mode 100644
index 00000000..6326efdb
--- /dev/null
+++ b/migrations/014.type-extension-1.up.sql
@@ -0,0 +1,19 @@
+--Original building use, this is same NLUD fields as current building use
+ALTER TABLE buildings
+    ADD COLUMN IF NOT EXISTS original_building_use;
+
+-- Building attachment, ENUM: Detached, Semi-detached, End-Terrace, Mid-Terrace
+CREATE TYPE building_attachment_form
+AS ENUM ('Deatched',
+    'Semi-Detached',
+    'End-Terrace',
+    'Mid-Terrace',
+    'Unknown');
+
+ALTER TABLE buildings
+    ADD COLUMN IF NOT EXISTS building_attachment_form building_attachment_form DEFAULT 'Unknown';
+
+-- [Disabled for launch] Date of change of use
+-- This needs to pair with demolition
+ALTER TABLE buildings
+    ADD COLUMN IF NOT EXISTS date_change_building_use smallint;