Glenn Keyes Architects is a premier architectural firm specializing in historic preservation and the adaptive use of historic structures. With over 30 years of experience, the firm offers a full range of architectural services, from complete analysis of existing structures to master planning and feasibility studies. Their expertise extends to period restorations of historic house museums, the adaptive use of historic houses for affordable housing, and the restoration of historic churches and courthouses.

Glenn Keyes Architects provides consultation on investment tax credits and grant funding for the rehabilitation of historic structures. They also excel in designing new buildings in historic settings, blending the new structures seamlessly into the context of the site and creating buildings that complement the immediate environment. Their meticulous and heralded work on treasured buildings illustrates the highest standards and advances the practice of preservation and conservation of architecture.

Founded in 1986, Glenn Keyes Architects is widely regarded as Charleston's leading architectural firm for historic structures. Their portfolio includes residential, commercial, and institutional assignments, with a focus on fostering economic and community revitalization through restoration and sympathetic infill architecture. The firm's team, led by Glenn Keyes, is committed to preserving and protecting historic architecture, both locally and internationally