LEW GLEASON is an associate principal and leader of PPA’s Conservation Division. An architectural conservator and designer with over 25 years of experience, Lew ensures that all projects meet PPA’s rigorous standards of aesthetic fealty and structural integrity. With extensive technical experience in building envelope detailing and a comprehensive knowledge of historic roofing systems, Lew is a critical resource for the whole studio, ensuring the longevity and performance of both restoration and new construction projects. Lew is currently leading the multi-million-dollar conservation scope of one of the last remaining Beaux-Arts mansions on Fifth Avenue and a milestone project for PPA.

Lew officially joined PPA in 2022 as a well-known and trusted colleague. Under his previous firm, Jan Hird Pokorny Associates, Inc., Lew led the conservation efforts on more than a dozen PPA projects over the span of a decade, as well as many of JHPA’s most significant restorations, including the exterior at Olana, Frederic Church’s home in the Hudson Valley, and the Poe Cottage in the Bronx. Lew’s work is the three-time recipient of the New York Landmarks Conservancy Lucy G. Moses Award, as well as the Preservation League of New York State’s Excellence in Historic Preservation Award. Lewis is an elected member of the board of the New York Landmarks Conservancy, and he is a certified building assessor for the Collections Assessment Preservation Program. He holds an M.S. in architectural conservation from Columbia University and a B.A. in economics from Boston University.