[kelnos]

And who do you think effectively controls the BoS and planning commission? Voters. Landowning voters. Because by and large, they want to maintain the status quo.

(Full disclosure: I also own property in SF, but am in faor of all sorts of new housing, even that which will lower my home's value.)

[ihaveajob]

Yes, especially in local elections, where participation is often ridiculously low, the electorate skews heavily toward long time, older residents, and more on the homeowner than the renter front. So the incentives are clear against new developments.

Edit: Thanks for supporting housing even against your financial interests. I’m on the same boat (across the bay). In my case I just want to live somewhere walkable without breaking the bank.