Very high property taxes with homestead exemptions (reductions when you live in the house as a primary residence) might be part of the solution. But the bigges

Very high property taxes with homestead exemptions (reductions when you live in the house as a primary residence) might be part of the solution. But the biggest one is letting property developers go wild. SF and the south bay have been doing very much the opposite for a very long time. Also, Prop 13 needs to be phased out. It's completely killing liquidity in the market, and removes any incentive for homeowners to not want rampant home value increases, which encourages them to prevent property developers from doing their thing.