Woolworth Building

New York, NY

GMS is providing structural engineering services for the conversion of the tower portion (30th Floor-60th floor) of this landmark structure to residential apartments. Structural modifications include two new high-rise elevators from the sub-cellar to 51st floor, new floor openings, concrete pit structures at sub-sub-cellar and machine room, and pickup framing at 51st to 53rd floor; new exit stair structures between 30th and 53rd floor, new floor openings and new/reinforced framing; two new penthouses at the 30th floor, new canopy structure at the ground floor for condominium entrance. Also, the below-grade levels were refurbished to accommodate restaurants, a health club, retail and educational spaces. GMS has also renovated the intermediate levels for office tenants.

GMS is also providing the structural Special Inspections for structural steel, stability and field inspections for concrete.

Client: The Witkoff Group and Alchemy Properties

Architects: The Office of Thierry Despont and SLCE Architects