Finally got some time to take this a bit further.
It's a new building generator I started a while ago.
You can create unlimited design configurations with this tool using a random seed parameter for the build plate as well as configure windows, doors, floor heights, roof height and orientation, columns etc.
Available on Artstation Marketplace:
https://www.artstation.com/marketplace/p/bbYDw/building-generator-2-hda?utm_source=artstation&utm_medium=referral&utm_campaign=homepage&utm_term=marketplace