[Doady]

They aren't just talking about the city of San Francisco, they are talking about the entire MSAs of San Francisco-Oakland and San Jose comparing them to that of Houston. The San Francisco-Oakland-Concord-Antioch urban area has a density 1975.9 people per square kilometre, San Jose 2,485.1, Houston 1,289.5. 40% of housing units in San Francisco-Oakland MSA are multi-family, 34% in San Jose, 29% in Houston. Sorry, but Houston is not the model for increasing density and building more multi-family housing. Not even close. Houston is not even the model for Texas, let alone the rest of the USA.

Miami 46%
San Francisco-Oakland 40%
San Diego 36%
Washington 35%
Seattle 34%
San Jose 34%
Austin 33%
Denver 32%
Las Vegas 31%
Dallas-Fort Worth 30%
Houston 29%
Portland 29%
Salt Lake City 28%
Tampa-St. Petersburg 27%
San Antonio 25%
Sacramento 23%
Riverside 18%