Does prefab go much beyond framing? The NAHB estimates that framing is only 17% of the cost of a house(1), so even cutting that cost in half doesn't save much on the whole project.
(1)https://www.nahbclassic.org/generic.aspx?sectionID=734&gener....
(1)https://www.nahbclassic.org/generic.aspx?sectionID=734&gener....
Houses are usually a leveraged investment. If you put down 5%, and prefab saves you 5%, you have massively reduced your risk of default during a downturn.
And if you expect it to take 20 years to pay off your mortgage, and framing saves 5%, that’s one year saved, which is massive IMHO.
Obviously a lot of assumptions to the above e.g. everyone else doesn’t get the 5% savings, and everyone doesn’t just bid up new house prices by 5% (because they are bounded by their mortgage which is related to their earnings, not costs).
We are going with company that actually assemble full house inside and bring it to site fully equipped: electrical, plumbing etc.