The Allen Family at the Hawthorn House (G.T. White, 1893, Town of Portola Valley Collection)

Knapp Architects led the team that prepared the Hawthorns Historic Structures Assessment for MROSD to describe the history and conditions of this typical country estate; identify opportunities and constraints for rehabilitation and development; and prepare documents for the District to solicit development partners. The multi-disciplinary team of expert consultants included Architecture+History as architectural historian, Denise Bradley landscape historian, PGAdesign Landscape Architects, Structural Design Engineers now DCI Engineers, Salas O’Brien MEP Engineers, Treadwell & Rollo Geotechnical Engineers, NV5 Civil Engineers, and cost estimation by Hattin Construction Management. The team prepared a Historic Resource Study, a Structures Conditions Assessment, and supporting information and diagrams for a Feasibility Study. The property was found to be significant as a San Francisco Peninsula rural estate and recommendations were tailored to focus on the site’s primary features to retain the property’s historic character in the case of future reuse.