Prices increase when you have a shortage. Prices decrease when you have a surplus. We can maintain prices by growing housing stock in line with population. (The same applies to everything else from semiconductors to cars to human labor.)

In California, people used zoning regulations to create a shortage and predictably house prices rose. Some people got richer. Other people got evicted.

Ideally, we'd create a slight housing surplus to reduce prices. As an added benefit, this would reduce rent-seeking opportunities and create a buffer of empty housing stock that would make moving and searching for a new place to live less of a hassle increasing people's mobility.