520 Park Avenue was conceived as a celebration of the best pre-war architecture in New York. Designed in collaboration with Robert A.M. Stern Architects, 520 Park Avenue draws on the resounding success of 15 Central Park West, creating a modern classic for the Upper East Side. Inspired by the private clubs of New York, this iconic masterpiece offers the highest levels of discretion in exclusively full-floor residences with views that stretch to the Hudson Valley.