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Turnbull Griffin Haesloop

Turnbull Griffin Haesloop

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About Us

Turnbull Griffin Haesloop is an award-winning architecture firm, led by principals Mary Griffin FAIA, Eric Haesloop FAIA and Stefan Hastrup AIA from our San Francisco office. We believe architecture is primarily concerned with establishing a "sense of place," inspired by the uniqueness of each site and each client. Since the concept for each of our buildings is rooted in its environment, we are particularly attentive to topography, microclimate, vegetation and solar orientation. We listen carefully to the aspirations and requirements of our clients. We are a woman-owned business renowned for sustainable, site sensitive design of houses as well as wineries, churches, libraries and independent schools. Our work also includes campus planning, adaptive reuse and historic renovations. An integral part of our practice is interior design, headed by Margaret Turnbull Simon ASID.


2016 AIA East Bay Design Awards | Merit, Sonoma Residence & Citation, Elmwood 2016 AIA San Francisco Design Awards | Merit, Hupomone Ranch 2015 California + Home Design Awards | Sustainable Residential, Hupomone Ranch 2014 AIA CC Residential Design Awards | Merit, Hupomone Ranch

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Business Details

Business Name

Turnbull Griffin Haesloop

Phone Number

(415) 441-2300


1660 Bush St., Suite 200
San Francisco 94109


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