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SF Richmond 3800 Washington (1041)
Despite having lived in San Francisco for many years, I somehow had never discovered this historic mansion, the Koshland house built in 1904 and surviving the 1906 quake. It is built to be identical on the front to Le Petit Trianon at Versailles. The main house is 18,000 sq ft with a guest house of 2600 sq ft. It is on the market, originally listed at $25M but the price has been reduced.
William Sutherland has particularly liked this photo