Have you seen the particulars of that law that upzoned the state? It's actually extremely weak:
"* Benefits homeowners NOT institutional investors. Recent amendments require a local agency to impose an owner occupancy requirement as a condition of a homeowner receiving a ministerial lot split. This bill also prohibits the development of small subdivisions and prohibits ministerial lot splits on adjacent parcels by the same individual to prevent investor speculation. In fact, allowing for more neighborhood scale housing in California’s communities actually curbs the market power of institutional investors. SB 9 prevents profiteers from evicting or displacing tenants by excluding properties where a tenant has resided in the past three years."
Translation: will be used only sparingly, because it's illegal to do it with a standard case of a corporation replacing existing housing with more housing. How many owner occupiers are interested in this and can afford this kind of redevelopment?
"Respects local control. Homeowners must comply with local zoning requirements when developing a duplex (height, floor area ratios, lot coverage etc.) as long as they do not physically preclude a lot split or duplex. This bill also allows locals to require a percolation test for any duplex proposed to be on septic tanks."
Translation: still lets local NIMBYs restrict density.
"It takes time to build the homes and see the impact but it’s hard to say that they’re not moving strongly in the right direction."
It's the right direction yes, but as you say, it's the kind of thing that should've been the response to the much weaker housing crisis of 20-30 years ago, not the much more serious one now.
