My plan to cheap housing
1) Unfuck Zoning. Be like Texas.
2) Unfuck building codes. Person signs their own death warrant? Let them live in a yurt or a the kind of shack people keep their garden tools in. There's a county east of Tucson like this, guess what, people no ded.
3) End all subsidies and government involvement in mortgages. Best way for skyrocketing price is for government to guarantee loans in a way a relatively free market would not.
4) Permit fees dropped for building housing. Cost of evaluating permits should drop without zoning or building codes. Only examine development to make sure it doesn't cause imminent harm to those outside the property line.