A midcentury home at 3907 Happy Valley Road in Lafayette, Calif., is for sale for the first time in nearly 60 years. It features a pool that extends into the dining room.

Fantasizing about your own private resortlike property, surrounded by lushly landscaped lawns, gardens and trees, and a pool and patio all to yourself? In this dream, is your pool indoors or outside? With 3907 Happy Valley Road, you don’t have to choose. This special home offers roomy grounds in Lafayette and features an outdoor pool designed to extend into the interior dining room. It’s on the market now for the first time in almost 60 years, asking $4.45 million. 

A midcentury home at 3907 Happy Valley Road in Lafayette, Calif.

In 1960, architect Walter Costa was commissioned to design 3907 Happy Valley Road. Costa worked for most of his career with Skidmore, Owings & Merrill, or SOM, “one of the world’s leading architectural firms and designer of many of the most recognized skyscrapers and civic buildings of the postwar era,” according to an email from listing agent Ann Newton Cane of Golden Gate Sotheby’s International Realty. Eventually, Costa became a general partner at SOM. In his 2022 obituary in the East Bay Times, Costa is described as an architect who worked all over the country, as well as internationally at the U.S. embassy in Moscow. Costa also “served as a Lafayette City Councilman from 1972 to 1976, and served as Lafayette’s 6th Mayor in 1973,” to quote the East Bay Times. 

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