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GMS provided both Structural Engineering and Façade Consulting for this major redevelopment, modernizing and reconfiguring the lobby, enlarging the retail spaces and updating the building facade.  A 6-story, 120,000 sf addition was installed on top, the existing courtyards were infilled and a new lateral load system for the combined structure was designed and built.  The new overcladding was extensively tested in both the laboratory and the field.

Owner:  The Macklowe Organization

Architect of Record:  Gensler

Façade Design:  Moed de Armas and Shannon

340 Madison Avenue
New York, New York