Earlier quoted context omitted.
That is all that is allowed due to local and state zoning codes. Loosening restrictions on what can be built will bring down costs and all for more types of buildings. The bland housing is all that pencils out for builders at the moment.
They did this in New Zealand under Jacinda Ardern's government and house prices have started to fall, but only slightly so far. IIRC the rules were something like, lots in a certain radius of a train station or town center are mandatory mixed-use zoning, overriding any city rules to the contrary. It was very controversial for the national government to override city governments like that.
Other political leaders might hesitate to follow such footsteps.