Wren Tower
Nothing quite says "attempting luxury" more than having a massive archway enter your apartment building. While it certainly is much more spacious and luxurious to the regular tenement towers found in the industrial ghetto, nothing quite says "I don’t care to socialize much outside of my comfortable lobby" with how the walls on the ground floor have no windows or other doorways.
Comes in a tall and short version for both levels.
All the props are here, of course:
Workshop Prop Collection
Civil Mania: The Generic Collection