While the net number of single-family homes and condos for sale in San Francisco inched down a little under a percent over the past week to 1,180, inventory levels typically drop closer to 10 percent at the end of July based on historic seasonality and late summer slowdowns. And on a year-over-year basis, there are now 30 percent more homes on the market in San Francisco than at the same time last year while pending sales are down over 30 percent and closing in on a 40 percent drop with the list price for over 30 percent of the homes on the market having been reduced at least once.