Try a zoning map, like San Francisco. Multifamily structures are illegal on the vast majority of the land. In those areas that do allow multifamily, it is mostl

Try a zoning map, like San Francisco. Multifamily structures are illegal on the vast majority of the land. In those areas that do allow multifamily, it is mostly very small ones. And even when a large multifamily structure is permitted by zoning, it can be years of environmental litigation and discretionary review hearings. https://sfplanning.org/sites/default/files/resources/2019-02/zoning_use_districts.pdf https://sfplanning.org/sites/default/files/resources/2019-02...