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 womanowned 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 and historic renovations. An integral part of their practice is interior design, headed by Margaret Turnbull Simon ASID. Turnbull Griffin Haesloop’s members 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, they are particularly attentive to topography, microclimate, vegetation and solar orientation. They listen carefully to the aspirations and requirements of their clients. 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.