Curtain Wall Installation Nears Completion on The Hospital For Special Surgery’s Expansion on Manhattan’s Upper East Side

The glass curtain wall has reached the roof parapet of The Anna-Maria and Stephen Kellen Tower, a 12-story waterfront expansion of the Hospital For Special Surgery at 535 East 70th Street in the Lenox Hill section of Manhattan’s Upper East Side. Designed by EwingCole, the $200 million addition will span 100,000 square feet directly over FDR Drive and connect the main hospital wing to the south via a sky bridge. The property is located between East 71st and 72nd Streets.

Work has progressed steadily on the glass façade since our last update in early May, when the curtain wall had only covered the bottom third of the steel-framed superstructure. The main areas of the exterior still awaiting completion are the ground floor, the mechanical bulkhead, and the diagonal trusses on the eastern elevation, which will be covered in aluminum paneling.