> "Such floor plans and building shapes translate well to apartments (although, of course, a common bathroom for 20 units won’t do)." Every floor would have to

> "Such floor plans and building shapes translate well to apartments (although, of course, a common bathroom for 20 units won’t do)." Every floor would have to be completely ripped out and replumbed, you'd also want more insulation to avoid hearing the neighbors, ventilation systems for the kitchens and bathrooms, and probably about a dozen other issues necessitating a complete reconstruction program. It might be somewhat cheaper than building new housing from the ground up, but it's not going to be a quick easy operation.