This elegant and well-proportioned apartment is the quintessential pre-war Park Avenue home. This residence boasts approximately 4,000 sq ft with 11 rooms, 4 bedrooms, and 4 bathrooms, including an oversized living room, library, formal dining room, windowed eat-in kitchen with separate den/breakfast room, laundry room, and staff/office with a full bathroom. Step off the private elevator landing and into the gracious center entrance gallery with a large walk-in closet and bathroom. All of the public entertaining rooms are laid before you. The great room with two double windows is centered on the wood-burning fireplace and is flanked by the massive dining room and charming library, creating a 60 ft+ expanse overlooking Park Avenue with treelined views. The library has built-in bookcases and cabinets and the formal dining room is perfect for entertaining and situated off the kitchen. The enormous windowed eat-in chef's kitchen has an abundance of counter and storage space, custom cabinetry, double sinks, and top-of-the-line appliances, including a Subzero refrigerator with four additional refrigerator drawers, and two freezer drawers, two dishwashers, a Wolf 6-burner stove and oven, an additional turbo chef oven, and a warming drawer. This large space opens directly to the large informal den. Additionally, there is a separate laundry room, staff/office, and marble bathroom off the kitchen. A separate hallway leads you to the bedroom wing, with 4 gracious bedrooms and 3 full bathrooms. The corner primary bedroom has eastern and southern exposures, a wood-burning fireplace, and two walk-in closets. The ensuite windowed bathroom features a shower, a separate tub, and custom mosaic floors. The three additional bedrooms all include large closets and built-ins. Other features of this beautiful home include herringbone oak floors & original moldings throughout, Central AC, and custom lighting-a storage cage transfers with the sale of the apartment. Ideally situated in the heart of one of the most exclusive neighborhoods in New York City, 620 Park Avenue is a prewar white-glove boutique co-operative with only fourteen residences. Amenities include a full-time doorman, fitness center, roof terrace, and live-in resident manager. The purchaser pays a 3% flip tax.