The Westerfeld House, designed by Henry Geilfuss, was built in 1889 for banker and candy baron William Westerfeld, one of many prosperous German immigrants who built grand homes in the area around Alamo Square. This great wooden palazzo is a pure expression of the style, Stick Italian Villa, with its tower, square bay windows and strong vertical line.

The second owner was John J. Mahony of Mahony Brothers, one ot San Francisco's most important contractors. Mahony Brothers buildings include the St. Francis Hotel, the Palace Hotel, the Bank of California, the Flood Building, the Shreve Building, the Hearst Building, the Phelan Building, the J. D. Grant Mansion, and the Hearst Mining Building on the Berkeley Campus.

John Mahony also built a garage on the north side of the Westerfeld House for his Stanley Steamer.

In the 1930s, the building housed the Russian Club, which served a large population of white Russians, including many residing in the neighborhood. The Club contained a restaurant called Dark Eyes.

The Westerfeld House is also National Register Listing 89000197.