This ornate Queen Anne Style house was designed for William Haas, a grocer whose family went on to take a controlling interest in the Levi Strauss clothing company; three family generations resided at this address until they donated it to San Francisco Architectural Heritage, an historic preservation group. This group has made the Haas-Lilienthal House its headquarters since the donation. According to San Francisco Architectural Heritage: "Designed by Peter Schmidt, it is an exuberant example of Queen Anne style, with its prominent open gables, varied styles of shingles and siding, and turreted corner tower topped by a “witches cap” roof. The original cost of the House was $18,500 (significantly more than the average for the day, which was $700-2,000.) Because it was the house of a merchant and not the mansion of a millionaire, it is an informative illustration of how early San Franciscans might have lived at the turn of the 20th century." (See "Haas-Lilienthal" House History,Accessed 02/14/2011.) The Westphalian-born architect, Peter R. Schmidt (1833-1901), designed the residence, working with building contractors, McCann and Biddell of San Francisco, CA.

San Francisco architect Gardner A. Dailey (1895-1967), early in his career, designed additional living space above the Haas Lilienthal House's garage in 1928.