Robert A.M. Stern’s luxury 520 Park Avenue condominium tower, which is set to take its place on Manhattan skyline by 2017, will be topped with a 12,400 square foot triplex priced at $100 million - the city’s priciest unit. The penthouse will be one of 31 expansive residences offered in the limestone-clad building which, according to the a recent press release, will be “evocative of the great New York apartment buildings of the 1920's and 1930's.” Developers William and Arthur Zeckendorf gained approval for the 51-story skyscraper by purchasing $30.4 million in air rights from the neighboring Christ Church.
Reference: The Real Deal, Curbed NY