You make excellent points, and I don't mean to minimize the regional issues.
Sure, if I had a magic wand then I'd increase housing being built across the Bay Area. In fact, I'd like consolidate the jurisdictions in the Bay Area, but that's a whole other argument.
I don't quite know how to play out the claim that demand is infinite. One, I don't believe that. And, two, it seems like an argument that has us throw up our hands and do nothing. It's large problem that needs a large solution -- I've heard estimates in the 100-200 thousand unit range -- but I'd rather shoot for that goal than do nothing at all.
When the proposal is a bit broader, i.e. "Let's fix the Bay Area", then, at the very least, it doesn't feel like a claim is being made on San Francisco by a specific tribe.
More than anything, it's the tribal nature of this issue that really sucks and it really stalls the things for everyone.
People truck in on a daily basis from New Jersey and Connecticut because there's highways and reliable (enough) rail options.
BART, from all accounts, is a total disaster and is about to completely implode. The rail project through the valley is anemic, completely inadequate for any serious commuter use.
If you can provide more options, stronger links with better commute times, you can live in places farther away without as huge a penalty on your time. It should be practical to live in Oakland and work in San Francisco, the two are so damned close, but it's a nightmare in practice.
Fix that and you're half way to solving this problem.
If you want to live by downtown PA (university Ave) its right around $2800-3000 for a 1 bedroom, for places with 20 year old appliances and no upgrades.
The peninsula is just as bad because of school preferences, etc.
New engineers getting hired in MV and PA literally can't afford to live by themselves in a 1 bedroom. That is fucked.
Not an impossible feat to bike, but the energy is low and there are much better ways to spend rent money.
That seems unlikely to me, based on intuition and my admittedly elementary understanding of economics. It seems very unlikely that a significant increase in the quantity of housing units would cause no change in the price of housing units.
Basically, the author is suggesting that (within practical bounds) the demand for housing inside SF is unlimited.
I think it's a fair assessment.
Tokyo metro area: 37.8 Million
Mexico City metro area: 21.2 Million
NYC metro area: 20 Million
If demand where truly unlimited, then building up S.F. to Tokyo standards or above over the next few decades should be practical, since that level of demand would provide the funds for the growth. Of course, what is really going to happen is that demand will likely stabilize around or below the 15 million threshold for the entire Bay Area.
But even the housing policy you describe, in which SF acts unilaterally, would still be a great good. Tens of thousands of people previously priced out of SF would now be able to live in the city. And those who still couldn't afford the city would find it much easier to live within a reasonable commute.
I quite liked the Peninsula. SF wasn't really my cup of tea. God forbid people like me that lived on the Cliffs of Despair (Pacifica) and were relatively happy.
Poorer, non-tech people are getting pushed out to Tracy and made-from-scratch exurbs like Mountain House.
SF is just the center, Oakland/Berkley is getting hit hard now. The Uber acquisition of that large office complex in Oak has set off a bonanza. The hipster brigade is already popping up in weird places in Oakland. Really not sure where all the poor people will go.
There is one, weird, and very not pc observation though: old home owners get pushed out, but in the East Bay you see a lot of Indian newcomers moving in - and not highly paid executives, but Indian fresh out of rural areas in India, men in sandals (no socks, ever) and women in full garb. Where is that money coming from?
This is roughly the conjecture of Marchetti's constant :https://en.wikipedia.org/wiki/Marchetti%27s_constant
See also induced demand https://en.wikipedia.org/wiki/Induced_demand & https://en.wikipedia.org/wiki/Jevons_paradox
I assure you, you can find a cheaper total cost of living + commuting within 2 hours of SF by car.
Take another look at this [1] BART map with corresponding home prices for each stop. Yeah, it's cheaper to live outside of the city, but it's still crazy expensive. The median sale price for a house in Pittsburg is $430,000, with a 62 min commute into SF. If you live 62 minutes outside of say, Pittsburgh PA, you can certainly expect your median home will cost ~$120,000 or less [2].
It's been my experience that while square footage cost may go down outside the city, you really end up paying around the same rent for a larger space. So if you can't afford a $3000/mo rent in the city, you probably still can't afford the $2800/mo rent you'll pay in Daly City.
I expect what would really happen if SF just went all in building new housing, is that prices would drop in the city slightly, allowing people to move back into the city, thus increasing demand and increasing prices back to where they were. The places where rent would drop are the suburbs, where people were pushed out to initially.
A way to look at it would be that SF's sphere of rent influence would end up shrinking, but the magnitude of the epicenter remains unaffected.
[1] - http://www.estately.com/bay-area-home-affordability-transit-... [2] - http://files.zillowstatic.com/research/public/realestate/ZHV...