The crowning glory of the prestigious Stuart Duncan House, this phenomenal triplex penthouse residence towers above the street in all its grandeur with iconic views centered on Central Park. Without peer, this world-class residence's exceptional three-level layout and high-end custom interiors offer the very best of luxury townhouse living with all the benefits, security and amenities of a doorman building. Features include: Stunning triplex penthouse retreat with 7,800 sq ft interior space. A private elevator that opens directly into the entrance foyer. Approx 3,600 sq ft spread across six separate outdoor spaces. Dramatic open plan living space with large picture windows. Sensational cityscape views that stretch over Central Park. Four lower level bedrooms, home office and galleries. Primary bedroom with expansive dressing room, deluxe ensuite, and private balcony. The upper level features a home movie theatre, billiards room, and it's own kitchen and den. Stylish eat- in kitchen with quality fittings and walk-in wine cellar. This one-of-a-kind luxury residence delivers bold Beaux-Arts architecture in a stunning 50-foot-wide limestone mansion designed by C.P.H. Gilbert. It rests in an exclusive tree-lined street that's just steps away from Central Park and surrounded by an array of fine restaurants, including Saint Ambroeus, as well as an array of galleries, wine bars, express subway and crosstown buses. This is the ultimate in cosmopolitan living in the heart of New York's Upper East Side.