diff --git a/src/blenderbim/blenderbim/bim/module/spatial/__init__.py b/src/blenderbim/blenderbim/bim/module/spatial/__init__.py
index aa83b82d63..f50d37d906 100644
--- a/src/blenderbim/blenderbim/bim/module/spatial/__init__.py
+++ b/src/blenderbim/blenderbim/bim/module/spatial/__init__.py
@@ -28,6 +28,7 @@ classes = (
     operator.RemoveContainer,
     operator.SelectContainer,
     operator.SelectSimilarContainer,
+    operator.BIM_OT_building_storey_add,
     prop.SpatialElement,
     prop.BIMSpatialProperties,
     prop.BIMObjectSpatialProperties,
diff --git a/src/blenderbim/blenderbim/bim/module/spatial/operator.py b/src/blenderbim/blenderbim/bim/module/spatial/operator.py
index 185a46b6ca..346b1e7d35 100644
--- a/src/blenderbim/blenderbim/bim/module/spatial/operator.py
+++ b/src/blenderbim/blenderbim/bim/module/spatial/operator.py
@@ -121,3 +121,13 @@ class SelectSimilarContainer(bpy.types.Operator, Operator):
 
     def _execute(self, context):
         core.select_similar_container(tool.Ifc, tool.Spatial, obj=context.active_object)
+
+
+class BIM_OT_building_storey_add(bpy.types.Operator, Operator):
+    bl_idname = "bim.building_storey_add"
+    bl_label = "Add Storey"
+    bl_options = {"REGISTER", "UNDO"}
+    building_name: bpy.props.StringProperty()
+
+    def _execute(self, context):
+        core.add_storey_to_building(tool.Ifc, tool.Spatial, obj=context.active_object)