Data through February 2013, released today by S&P Dow Jones Indices for its S&P/Case-Shiller Home Price Indices, the leading measure of U.S. home prices, showed average home prices increased 8.6 percent and 9.3 percent for the 10- and 20-City Composites in the 12 months ending in February 2013. The 10- and 20-City Composites rose 0.4 percent and 0.3 percent from January to February.

All 20 cities covered by the indices posted year-over-year increases for at least two consecutive months. In 16 of the 20 cities annual growth rates rose from the last month; Detroit, Miami, Minneapolis and Phoenix saw slight annual deceleration ranging from -0.1 to -0.4 percentage points. Phoenix continued to stand out with an impressive year-over-year return of +23.0% while Atlanta and Dallas had the highest annual growth rates in the history of these indices since 1992 and 2001, respectively.

In February 2013, the 10- and 20-City Composites posted annual increases of 8.6 percent and 9.3 percent, respectively.

“Home prices continue to show solid increases across all 20 cities,” says David M. Blitzer, Chairman of the Index Committee at S&P Dow Jones Indices. “The 10- and 20-City Composites recorded their highest annual growth rates since May 2006; seasonally adjusted monthly data show all 20 cities saw higher prices for two months in a row – the last time that happened was in early 2005.

“Phoenix, San Francisco, Las Vegas and Atlanta were the four cities with the highest year-over-year price increases. Atlanta recovered from a wave of foreclosures in 2012 while the other three were among the hardest hit in the housing collapse. At the other end of the rankings, three older cities – New York, Bostonand Chicago – saw the smallest year-over-year price improvements.

Hollywood comedian Robin Williams is interested in selling his massive Napa Valley estate, Villa Sorriso. The villa is on 653 acres and includes a 20,000-square-foot main house; solar farm; and 18 acres of Cabernet Sauvignon, Merlot, and Cabernet Franc grapes.

Villa Sorriso is built atop the Mayacama Mountains, which separate the Napa and Sonoma valleys. The five-bedroom, 12-bathroom Italian villa was designed by David Gast & Associates and is faced with Portuguese limestone. The interior features formal living and dining rooms, a gourmet eat-in kitchen, and numerous temperature-controlled vaults for both wine and art storage. The kitchen is understated yet elegant, with stainless steel appliances surrounded by marble and butcher block counters. The living room is simple yet elegant, including a terrace with views of the estate.

No actor’s house would be complete without a state-of-the-art movie theater. The house also features five luxurious bedroom suites, each ornately adorned with contemporary trappings. Each bedroom has its own en suite bathroom and jaw-dropping views from every window.

In addition to 20,000 feet of interior living space, the grounds are truly the spectacle of the property. Steps from the master suite is a 65-foot, infinity-edge swimming pool surrounded by antique stonework and a multitiered sculpture garden, perfect for entertaining. Tennis courts, hiking trails, and a private lake complete with rowboat highlight the variety of different outdoor activities on the estate.