The average people in this are trendy hipster types who are just married without kids. This whole premise is a disaster waiting to happen. Basically, most couples want an overpriced tiny house in the downtown area. Had they taken the $200k they waste on 400 sq ft, they could buy a real house outside the citycenter and not have to have a bathroom in their kitchen. Heck, a double wide trailer would offer better insulation, design, space and function for 1/3rd the cost.