Perched on a high corner in one of Manhattan's most highly sought after luxury buildings, this grand pre-war cooperative boasts generous proportions, soaring ceilings, and breathtaking city skyline views. Designed by the celebrated residential architect, James E.R. Carpenter, 550 Park Avenue has long been regarded for its sophisticated elegance and grandeur, which is immediately apparent upon entering this prized residence. This residence presents the rare opportunity to truly make the space your own. The current floor plan encompasses the most grand entertaining spaces; however, the original floorplan lists 4 bedrooms and can be altered to fit your needs. Boasting approx. 4,000 sq. ft., a private elevator leads directly into a sweeping entrance gallery featuring marble floors. The gallery opens to a sprawling formal living room of tremendous size, scale, with several windows that flood the space in natural light. A separate dining room is connected to the living room offering space to easily accommodate a table for 25 or more. There is also a spacious library with open city views. The living room, dining room, and library have beautiful herringbone floors with marble fireplace mantels. The large kitchen can easily accommodate oversized appliances, ideal for a professional chef, and currently features two stovetops, a double oven, and a double-wide refrigerator. A separate laundry room is also connected to the kitchen. The master bedroom is tucked away in a separate wing, offering privacy and seclusion. Two windowed marble-clad bathrooms are attached to the master bedroom with an abundance of closet. A second bedroom, staff room, and study are also included on this side of the home, with the second bedroom and staff room each including en-suite baths and a walk-in closet. Designed in 1917, 550 Park Avenue is a full-service, white-glove doorman building comprised of 17 floors with only two apartments per floor, each line with its own elevator. Resident amenities include a private rooftop and courtyard, separate storage, and laundry room. Pied-a-terres and pets are allowed. Financing is not permitted.