It might come down to culture/demand? In Japan where it's preferred to make a new home rather than buy a pre-owned one (outside the big city), pre-fab seems to

It might come down to culture/demand? In Japan where it's preferred to make a new home rather than buy a pre-owned one (outside the big city), pre-fab seems to have taken off rather more (13% of new builds in 2013). For example, a house built in a day (customisable, moderately expensive but very high quality): https://youtu.be/Kzpv47o80eg https://youtu.be/Kzpv47o80eg