Perfectly positioned on the 19th Floor of 520 Park Avenue, the most distinguished boutique condominium on the Upper East Side, this magnificent full-floor Simplex home redefines luxury living.The story of this brand-new 4,613 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. Spanning the entire south side of the building, the expansive eat-in-kitchen, dining room, and living room boast an abundance of natural sunlight and stunning city views.With four bedrooms, five full bathrooms, and one powder room, key features of the residence include 11 foot ceilings, oversized windows throughout, including bay windows in the primary bedroom and corner living room, select-cut solid white oak hardwood flooring in classic herringbone and overlay patterns and multi-zone central air conditioning and heating with precise temperature control in every room.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, speed oven, convection oven, warming drawer, and a wine refrigerator - all Miele designed. There is a large pantry closet offering added storage. The kitchen seamlessly flows into the formal dining room, and further into the corner living room. The primary bedroom suite features generous closet space and two luxurious, en suite bathrooms with radiant heat flooring, beautiful marble, polished nickel fixtures, and Robert A.M. Stern custom-designed vanities.The second bedroom suite features two closets and 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 laundry area located in the common hallway, features an Electrolux side-by-side washer and vented dryer. The library or fourth bedroom is located adjacent to the living room and features an en suite marble bathroom and spacious closet.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 facade, 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.