#1 can be tricky in SF. If you mix affordable and market rate housing in the same development, there are still "luxury" amenities in the building. The HOA fees are not capped by law and with special assessment fees could possibly exceed a BMR mortgage payment. I'm not familiar with the configuration of all-BMR developments, but I assume there are HOA fees for those as well. This situation can make affordable housing unaffordable.
In SF there's no reasonable way to stabilize (let alone bring down) home prices without less restrictive zoning.
In SF there's no reasonable way to stabilize (let alone bring down) home prices without less restrictive zoning.