A WSJ survey of U.S. housing market prices and inventory in November 2013. Price gains moderated in the 3rd quarter of 2013. Gains were 1% in Orange County, 2% in San Diego, and 3% in San Francisco in the 3rd quarter 2013. Gains were over 20% in the 12 month period ending in September 2013 for San Francisco, Phoenix, San Diego, and Orange County, according to Zillow Inc, real estate website. Increase in interest rates on mortgages and rising prices have reduced the affordability of homes for new buyers.