Schedule of geometry area

[nathaniel.g.macdonal]

Revit calculates mass surface area automatically.

Facade area of a conceptual mass

Revit already calculates the surface area of a conceptual mass [image] You would need to separate out the vertical (or near vertical) faces for just the façade- so could use Dynamo for this Andrew

If they are separate masses you may have to join them in dynamo and get the surface area there.