Perfectly positioned on the 21st Floor of 520 Park Avenue, the most distinguished boutique condominium on the Upper East Side, this magnificent full-floor home redefines luxury living. The story of this brand-new 4,628 square foot home begins at the private key-locked elevator landing, which leads to the vast entrance gallery from which all of the entertaining rooms flow. The impressive living room encompasses the North-East corner of the home, featuring mesmerizing city views, including Central Park. Adjacent to the living room, is the library, which seamlessly leads to the formal dining room. These rooms have impressive views and impeccable light, perfect for entertaining. The residence features 11 foot ceilings paired with oversized windows, including bay windows in the primary bedroom and corner living room. Key features include select-cut solid white oak hardwood flooring in classic herringbone and overlay patterns, multi-zone central air conditioning and heating with precise temperature control in every room. The smart layout allows for separation between public and private spaces. The impressive windowed eat-in-kitchen is exquisitely outfitted in custom Christopher Peacock cabinetry designed by Robert A.M. Stern and has first-class appliances including a Subzero refrigerator with two freezer drawers, a six-burner Wolf range with vented hood, two sinks, two dishwashers, a convection oven, a steam oven, a warming drawer, and a wine refrigerator - all Miele designed. The primary bedroom suite featuring a luxurious, windowed bathroom and two spacious closets. The primary bathroom features radiant heat flooring, beautiful marble, polished nickel fixtures, and Robert A.M. Stern custom-designed vanities. The second bedroom suite features an en suite windowed marble bathroom with bathtub and radiant heat flooring. The third bedroom features an en suite bathroom with a shower and radiant heat flooring. The fourth bedroom also has an en suite windowed bathroom with exquisite views to the east. The laundry area located in the common hallway, features an Electrolux side-by-side washer and vented dryer. Zeckendorf Development, creators of 15 Central Park West, present 520 Park Avenue; a breathtaking limestone condominium designed by Robert A.M. Stern. Rising from a discrete mansion faade, 520 Park Avenue is just shy of 800 feet and houses thirty-five full-floor simplex and duplex residences, offering truly white-glove service to its residents. Amenities include a full-time doorman and concierge, a salon which leads to a beautifully landscaped garden, fully-equipped fitness center, double height indoor swimming pool, children's playroom, a lounge room equipped to serve as office space, screening room, lounge, and more. 520 Park Avenue is located at 60th Street between Park and Madison Avenues - an ideal location between the charming Upper East Side Historic District and the prestigious Plaza District.