Comment by oever

For architecture, there is Industry Foundation Classes (IFC). IFC is a standard for describing building. FreeCAD supports this natively. There's a tutorial here: https://yorik.uncreated.net/?blog%2F2025%2F002-nativeifc-tut...

Blender has and extension for IFC called Bonsai. https://extensions.blender.org/add-ons/bonsai/