"But the issue is that land use regulations (also called zoning laws) restrict the supply of housing. They impose minimum size requirements, they require permis

"But the issue is that land use regulations (also called zoning laws) restrict the supply of housing. They impose minimum size requirements, they require permission of local authorities, they require parking lot requirements etc. While some of these might be justified for safety reasons, it is unlikely that all of them can be justified, and the cumulative effect of all of them is to massively restrict housing supply." Summary: whenever such issues exist, look for the fundamental reason: government. Human beings left free to use their minds to solve problems, will solve problems. It's the dead hand of force that stops that process cold. The solution is removal of the force, never more of it.