[CuriouslyC]

So pass laws to provide incentives for bare bones low income construction, and disincentivize excessive luxury construction. In a lot of places you can't build unless you also build a certain amount of parking, the same approach could be applied to affordable apartments.

We also need laws against large scale speculative home purchases. An individual having a vacation home/rental unit or two is one thing, but home flippers and large scale property rental corps are a big problem.