Currently watching/listening to the old Brit film "Green For Danger" (1946) murder mystery...........anyway.....
This whole thing is shot on a soundstage where, of course, everything is a diorama in life-size proportion. The buildings and props are quite interesting and something unlike what we see in a lot of dios.
Yes, it is supposed to be Britain.....but could continental architecture be all that different in many cases? I don't build dios (yet) but enjoy watching what you people do and I think a rental of this film might give you some ideas!
Nam