It's just bizarre to me that people are focused on building homes more efficiently, when the overwhelming majority of the cost of housing in most areas is the c

It's just bizarre to me that people are focused on building homes more efficiently, when the overwhelming majority of the cost of housing in most areas is the cost of the land, not the actual cost of building the house. How do we know this is true? Well just look at the cost of building a new home in lower cost of living areas. You can still build quite large custom homes for under $300k in much of the country. So it's not the cost of labor, or the cost of raw materials. Sure there's some difference between LCOL areas and HCOL areas, but even generously assuming that it would be a 50% premium you still dont arrive at California level prices. This is yet another conversation about housing that whistles right by the true cause: exclusionary, and racist zoning practices.