G'day all, please read https://community.osarch.org/discussion/comment/29745/#Comment_29745 regarding a schedule to migrate forum software. Aiming to fully migrate on 15-16 Aug.
Buildify - Blender Geometry Nodes Add-on for customizable modular buildings

I like the implementation, I can also see some of the stuff experimented with on this forum in the past implemented in it.
This would interest you @brunopostle




Comments
Love this, the Homemaker add-on does basically the same thing, but entirely with IfcOpenShell, and essentially no Blender code. This makes it much slower than a geometry nodes solution, since it is creating a detailed IFC model and then importing it with Blenderbim. It would be nice to have some kind of half-way solution that used blender functionality to give instant feedback while the final IFC model is generated in the background.
I'm also envious of all the assets and materials in this add-on, where do people find time to do this?
The BlenderGIS part had me drop my jaw a little. I wonder how customizable it is. I will be testing this whenever I can.
I did not undstand all of the details but I am very impressed and can see some great possibilities using this plugin.
Another similar tool:
I've added a few things to the wiki. Feel free to improve them
https://wiki.osarch.org/index.php?title=Category:Blender_Add-on
Another one:
https://alanwyatt3d.gumroad.com/l/Villagen
More of same.
The Geometry Nodes approach feels a good fit for the early design stage, especially where quick iteration matters. Combining that with a workflow that can still produce a proper IFC model later would bridge the gap between visual feedback and BIM deliverables.
The integration with BlenderGIS is probably one of the most interesting parts too, particularly if it allows real-world site context without adding too much setup. Projects involving modular buildings, such as those delivered by Asset Accommodation in Ireland, show how important it is to test layouts, access and site constraints early, so tools that speed up those decisions have genuine value. There’s a useful overview at: https://21c.ie, if anyone is interested in seeing how modular building projects are applied in practice.
Looking forward to seeing how extensible the node system is, especially if users can create and share their own building components and material libraries.