Frank Lloyd Wright Hanna House Rehabilitation

Stanford, CA

R+C was structural and geotechnical engineer for this American Institute of Architects (AIA) landmark house rehabilitation. The project involved an innovative structural scheme center coring masonry chimneys, strengthening wood walls, and adding new foundation elements. R+C developed a full-sized prototype of a strengthened wood wall for dynamic testing to simulate San Andreas Fault activity. R+C Geotechnical developed conceptual studies for and restored retaining walls within the Hanna House site. Built in 1937 and exemplifying Frank Lloyd Wright's unique contribution to American culture, it was Wright's first use of a hexagonal design module and one of his most sophisticated Usonian projects. The building was badly damaged by the Loma Prieta earthquake. The rehabilitation was accomplished under the guiding principle that the restored house should look untouched from its original design.

SCOPE
Structural Engineering
Geotechnical Engineering
SIZE
5,200 sf
CERTIFICATIONS
AWARDS
KEY INFO

National Register of Historic Places listed project

Wright's most prominent use of hexagonal design

R+C developed a full-sized prototype of a strengthened wood wall for dynamic testin

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Ferry Building logo.

Leavening peerless structural engineering skill with humor, philosophy, people skills and, above all, a consummate understanding of San Francisco's permitting process, [Alan] saw this project through.