Hasnt a thread like this already been made?
If you have the concern to post about it, you should search
for it as well to back up your claims. I mean, it's super easy to do.
Pimmetjuh, you're looking for something along the lines of the Civilian Colony Mod
, the DL link is long dead(LD might you have it kicking around?), and as the thread says, they don't actually do anything if you build them, you'd have to further mod them to achieve any added benefit from building the Civilian Buildings.