In a Building Information Model (BIM), it is common to model spaces defined as gross areas, apartment areas, departments, etc. that group other spaces. This is accomplished in Revit through area plans, and the IFC exporter in Revit provides area information in the “Other” property set.

Below is a gross area space named Circulation that contains circulation rooms (as defined in Revit) such as Lobby 102, Stair 132, and Corridor 107, listed in the Space Grouping view:


Notice in the Info view, the “Other” property set contains the Area Scheme ID and Category properties.  The Area Scheme ID provides the name of the area scheme, such as Gross Area, Apartment, etc., and the Category property states whether the space is a room, space, or area.  Also, notice in the Space Grouping view, the Space Group Type column lists Gross Building, which is the same value as the Area Scheme ID.  This value is the classification name from the Space Grouping classification.

If the Corridor 107 room is selected, the Area Scheme ID property is not defined because the category of the space is a room and not an area.


These properties in the Other property set make it simple to classify space groups in SMC using classification rules in the Space Grouping classification.  Below, we’ve added a row to the classification rules that matches any spaces that have the value “Areas” in the Other.Category property. Those area spaces will have their classification name set to whatever the value is of the Other.Area Scheme ID.


You can download this modified space group classification from the link below to try with your own Revit models that contain area plans:

Space Grouping.classification

With your space group classification properly setup, you can use the Space Group Containment rule to check that your space groups contain the required number of space types.