Average price per square foot for San Francisco CA was $949, an increase of 12.3% compared to the same period last year.Popular neighborhoods in San Francisco include Pacific Heights, South Beach, Noe Valley, Bernal Heights, Potrero Hill, and Russian Hill.he average listing price for San Francisco homes for sale on Trulia was $1,337,951 for the week ending Sep 30, which represents an increase of 1.6%, or $21,491, compared to the prior week and an increase of 6.5%, or $81,107, compared to the week ending Sep 09.