just chiming in with the prices. A $2500 studio in the heart of Castro is probably correct. I'm not saying that's good, I'm saying that's the probable asking price of some landlord.
So yes the situation is bad.
A quick search turned up a 1-br for $3100.. .. *not in the heart of the castro* but in an otherwise nice location. Therefore you can believe the other prices.
That tidbit about a 2-br in Diamond Heights by "santa" ? That info is probably not correct any more, the place can cost from $2500 to $2800 or $3000 by now. (since it was signed for a year ago). And the same place was certainly $1900 about 2.5 years ago.
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About the Ellis act--might be a blight, but how about people who just want to make it a 1-family-living space and re-sell it? Therefore, they would both make a bang for the buck and decrease available housing in SF at the same time!!
Such a scenario has been covered in the papers recently.
Sometimes, sure, a property is bought with the intent to merge multiple units into one gigantic living space but this is atypical if nothing from a practical standpoint. In reality, TIC's speak to this [in part] but, again, and this seems to be everyone's bone of contention, it's become a restrictive process with regards to the "make it a 1-family living space and sell it".
In my first post I referred to "San Remo Hotel" v City of SF" because it's a seminal case regarding private property rights, Con law and "illegal takings", the later being the cornerstone of Plaintiff's original complaint. Went all the way to SCOTUS on the matter and it is still unresolved. You read, learn some stuff [please see comment re: chitty-chat].
I'm both a long time Property Manager and zealous affordable housing advocate in both the private and public sectors. And despite this, the I actually tend to come out on the side that municipal rent is control is un-Constitutional and a form of illegal taking yet even so does not make the matter any less complicated [but now I'm repeating myself].
That I feel this way and advocate at the same time for affordable housing are not mutually exclusive. I think it's this [philosophical] split that both defines and complicates the matter.
Like everyone else who posts here, fwiw, my words are simply my opinion, worth nothing and everything depending on who you ask. Cheers!