What is average HOA cost for condos in San Francisco/Peninsula

I am curious as to what average HOA cost is for condos in San Francisco/San Mateo County- we pay $720 per month for 1150 sq foot condo - 3 bed/2 bath located in southern part of SF. It has been going up close to 20 percent per year. That gets us a parking spot and outside maintenance and gardening. Meanwhile we spend time in Coachella Valley active adult community (over 55) and HOA is only $350 and includes all sorts of amenities - pool/clubhouse/outside maintenance. This is 3 bed/2 bath home built in 2007 - our condo is built in 1989. Granted that older properties need much more maintenance but these HOA fees are making me wonder if it is worth selling condo for single family home. Of course anything in SF that is in reasonable shape is over $1 million.