While there seem to be a few positive signs for the San Diego housing market, experts agree the downturn has been unprecedented and perhaps just the beginning. The most recent good news comes from a report that shows home values grew on a monthly basis for the first time in three years. Prior to May, home prices had been in steady decline since July 2006. The bad news is it only grew by 0.4 percent, and the housing market usually has some sort of upswing in the spring or summer.