San Francisco here and for Marin here.
Generally for single family homes and condos in San Francisco, inventory, number of sales and average sales price was down compared to June. For 2-4 unit buildings, inventory is also down but number of sales and average sales price are up.
Our report is based on several specific configurations of condos and single family homes (e.g. 2 bedrooms, 2 baths) rather than averaging all residential properties from the largest, most expensive to the smallest, least expensive. Nevertheless, the total number of condos and single family homes we survey represents approximately 70% of all listings and sales. For 2-4 unit buildings, we survey all listings and sales.
The last page of the report shows annual results back to 1996.