Hospital for Special Surgery to Anchor Planned UES Development

Extell Development is planning to break ground before the end of the year on a 30-story, 400,000-square-foot tower that will span the entire blockfront of 1st Avenue between East 79th and 80th Streets. The Hospital for Special Surgery (HSS) has signed a lease for 200,000 square feet spanning the eight base floors of the estimated $500 million development. Extell pieced together the multi-parcel assemblage over the course of several years, completing the development site in 2018 with the purchase of $35.8 million for additional air rights from St. Monica’s Roman Catholic Church on East 79th Street.