With the release of my first terrain library, I created some buildings for you. All buildings are split by the different floors so it's much easier to print.
These files are available for commercial use for several of my patreon levels, check the below link for more info.
If you want to have buildings of individual size, make sure to become a patron here and use my new terrain generator with the recently published terrain library: https://www.patreon.com/Udos3DWorld
You want these terrain pieces but don't own a 3D printer? I also offer these parts on my etsy shop, along with some other variants: https://www.etsy.com/Udos3DWorld/listing/1236672352/ruined-scifigothic-wargaming-terrain