Anshen & Allen

Anshen and Allen was an international architecture, planning and design firm headquartered in San Francisco with offices in Boston, Columbus, and London.

After the end of World War II, as a generalist practice, the firm developed gas station prototypes for Standard Oil, parking garages and interior naval architecture.

Joseph Eichler and John Calder Mackay, both residential real estate developers, commissioned Anshen and Allen to build the initial Eichler homes and Mackay Homes in the California Modernist style beginning in the 1950s.

In the late 1970s and early 1980s, under the leadership of Derek Parker, the firm was transformed into a modern international architectural practice.

[12] In 2007, Anshen and Allen participated in the development of Integrated Project Delivery by serving on the IPD Definition Task Group of the American Institute of Architects (AIA) California Council.