UM…: ‘I don’t want to become San Francisco’: Urban woes spur state action on housing. “Officials in Washington state and Vermont looked at the housing crisis in San Francisco this year and took action to prevent the same thing happening in their states: They effectively banned single-family zoning.”

San Francisco is all of 47 square miles of some of the most desirable (well, formerly) real estate in the world. Washington and Vermont are entire states.