Also, 1/3 of rental housing in SF is rent controlled, meaning that rent increases are limited to a fraction of the CPI. This causes a large difference between c

Also, 1/3 of rental housing in SF is rent controlled, meaning that rent increases are limited to a fraction of the CPI. This causes a large difference between current market rates and what established tenants pay. It explains both the low prices reported here, and some of the seeming discrepancy between wages and housing costs as reported by market sources.