These are specifically designed as background buildings. They are laid out so they can be used Flat or built as low relief but detailed models. The Philly factory is from photos I took when I was teaching computer graphics on the Villanova campus several years ago. I had the opportunity to ride the inner city transit system and this was right along the tracks and embedded into an embankment along the tracks. I made it modular so it can be lengthened or stacked. The other is more rural with a nice roofline. I don’t know what the industry makes but use your creativity. I’ll be watching to see what you come up with.
You might want to look in freebies for a really oddball but charming kit (a small trailer with a wood room addition)