Much like Holyoke Mass, Detroit was one of the richest cities in America. Like Holyoke, Detroit got burned out etc, but the homes from back in the day are made with real materials, old brick, and cornices etc that a retro builder would love to have.
If they are going to disassemble some of these gems from back in the day, I can see where the recycled materials maybe in demand nationwide if not wider.
Some fancy catch phrase like "Home-Detroit" or "old-school-Detroit" etc might give this enterprise a lift...
if it wasn't for the fact that I hate mice and rats and snakes, I could do that kind of work.
Detroit was known as the American Paris because of her architecture.