local NIMBY density restrictions still have to comply with all the other state laws regarding submitting plans to increase housing units.
If the state says no that’s not enough units you are just jerking us around, then the municipality is out of compliance and builders are basically autopermitted to build whatever they want (oversimplifying but look at builder’s remedy - it’s already being applied).
One of the important wrinkles is that there’s no take backs, once the city is back in compliance they can’t go back and stop things that were permitted in the meantime. It’s a very serious “fix it on your own terms or we’ll fix it for you and you won’t like it” approach.
Santa Monica is getting like 5000 new housing units all at once, 800 of them affordable housing, in tall apartment buildings because they threw a fit and refused to get in compliance and they found out just how serious the state is.
NIMBYs wail and gnash their teeth but all it does is expose that their “plans” are all a load of BS smoke and mirrors to max out boomer property values. If the plans were good enough, they’d be in compliance with the state and get to keep the “character of their neighborhood” or whatever.