diff --git a/yaml/office-storey.yaml b/yaml/office-storey.yaml
new file mode 100644
index 0000000..0f45b7c
--- /dev/null
+++ b/yaml/office-storey.yaml
@@ -0,0 +1,11 @@
+src: ifc/office.ifc
+
+operations:
+  - name: Extract storey UG
+    command: extract
+    input: ifc/office.ifc
+    output: ifc/office_storey_UG.ifc
+    type: IfcBuildingStorey
+    id: UG
+
+dest: ifc/office_storey_UG.ifc