The conservation of our built heritage is at the heart of John Cook's architectural practice. Cook co-founded GRC Architects in 1985. This firm offers a full range of architectural services for historic buildings, such as Conservation, Life safety, seismic, and technical systems, Adaptive re-use, Additions and new construction, Design studiies of buildings, urban settings,and cultural landscapes. Work of GRC Architects has been recognized for excellence,demonstrating knowledge and sensitivity to history as well as contemporary uses. Projects include25 heritage buildings from the early ninetieth century, to the late 20th century.