"Mott MacDonald is familiar with our turn-key office spaces, top tier amenities, sustainability leadership, and ESRT's high-end service," said Thomas P. Durels, ESRT EVP, Real Estate. "We are pleased that Mott MacDonald will continue their partnership with us and expand into the 'World's Most Famous Building .'" Sheena Gohil, Jack Senske, and Teresa DeLeo of Colliers International represented Mott MacDonald in the lease negotiations. Shanae Ursini of ESRT and Scott J. Klau, Erik Harris, Neil Rubin, Brent Ozarowski, Zachary Weil, and Cole Gendels of Newmark represented the property owner. More information about the Empire State Building, and current office availability, can be found online.