The SF Department of Public Health has a map that's not too surprising, but still worth a look: It shows how many minimum-wage jobs it would take to rent a two-bedroom apartment in different city neighborhoods. In the Mission, for example, it would take 5.5 jobs to pay the current market rate for an apartment. That means either: You're crowding five working people into that apartment (and none of them have kids), or you've got three people living there and all of them are working two full-time jobs.
That's the Mission. It's worse in Soma, North Beach, Potrero Hill, even Civic Center.
And does anyone really think that all of this development is going to make it any better?