TransForm – which has studied the impacts of parking regulations on housing and ground-truthed whether those required parking spots are even needed – followed the process of developing housing elements in about thirty Bay Areas cities. They commented on the parking issue and nudged the cities towards policies with better outcomes for housing supply.

Some of those cities have already changed their parking regulations. About eighteen of the cities TransForm followed have made commitments to update their parking rules, recognizing that they are constraining housing supply.

Knowing there is a dearth of good data, TransForm just published a guide for them and for housing advocates: Parking Revolution: Housing Solution. The timing is key, since these plans are being discussed right now.