Turnbull Griffin Haesloop is an award-winning architecture firm, led by principals Mary Griffin FAIA, Eric Haesloop FAIA and Stefan Hastrup AIA from their San Francisco office. They are a woman-owned business renowned for sustainable, site sensitive design of houses as well as wineries, churches, libraries and independent schools. Their work also includes campus planning, adaptive reuse, historic renovations, and interiors.
They believe architecture is primarily concerned with establishing a "sense of place," inspired by the uniqueness of each site and each client. They are particularly attentive to topography, microclimate, vegetation and solar orientation.
Mary Griffin, Eric Haesloop and Stefan Hastrup collaborate on all aspects of design and continue William Turnbull’s commitment to producing buildings of enduring architectural value. Turnbull Griffin Haesloop is dedicated to green building principles, with several LEED accredited professionals.