An entire village built on the roof of a huge building

I assume / hope the building itself is a parking structure, since about 80% of its floor space receives less natural light than a forgotten tomb. If so, it would be nbd to provide for cars on the roof.

ETA even if it is a parking structure, in a city on the equator, they could have saved a lot of electricity with a couple of light wells (as is often done with this kind of building). I doubt there are many other places this could work.