SF is not adding units because people are not allowed to add units. I am specifically saying you need to change that to build units. I am also saying that a portion of windfall from changing zoning should be used to offset the cost of new infrastructure. As long as building units stays profitable and people are allowed to build units then people are going to build units. Giving people building units even more profit is going to have minimal effect.
As it stands now anyone that can convince a zoning commission to change zoning get's a huge windfall from doing so as suddenly with zero other changes the land is more valuable. That's ripe for corruption on many levels and creates terrible incentives.
As to building infrastructure after people show up that's really does not work because building takes time. The lag between getting permission to build and someone moving in is not long enough to finish infrastructure but it is useful.
As it stands now anyone that can convince a zoning commission to change zoning get's a huge windfall from doing so as suddenly with zero other changes the land is more valuable. That's ripe for corruption on many levels and creates terrible incentives.
As to building infrastructure after people show up that's really does not work because building takes time. The lag between getting permission to build and someone moving in is not long enough to finish infrastructure but it is useful.