I have had some professional experience with pre-fabricated houses (typically multi-flat buildings) in the '90's, and of course it may well depend on the countr

I have had some professional experience with pre-fabricated houses (typically multi-flat buildings) in the '90's, and of course it may well depend on the country, on local codes and availability and cost of site workers, but the overall lesson we learned at the time after n designing and manufacturing tests was that the only real difference was construction times (at the same level of quality), an old related post of mine: https://news.ycombinator.com/item?id=24764117 https://news.ycombinator.com/item?id=24764117