237 Atherton Avenue, Atherton, Calif. 94027
Sale price: $53,000,000
This 12-acre estate, originally listed at $59.5 million, sold in September for $53 million. The property has an 11,000-sq.-ft. English Tudor-style house as well as a 6,500-sq.-ft. guesthouse, according to listing details. It was sold by the children of San Francisco philanthropist and arts patron Madeleine Haas Russell, who died in 1999, to an anonymous buyer, the Wall Street Journal reported.
* Sale data: Trulia.com
Photography: Courtesy of Google Maps