This lavish fifteen-room residence, occupying the entire tenth floor of elegant prewar 550 Park Avenue, epitomizes old New York glamour and fine living while offering the latest bespoke amenities, soaring views of the Manhattan skyline in four directions, and, at approx 7,000 square feet, the luxury of vast amounts of space. Completely renovated to the highest standards by interior designer David Kleinberg, the apartment, which comes in triple mint condition, provides a functional floorplan perfect for entertaining on a grand scale or intimate family life.  A private elevator landing opens to a circular foyer at the center of the apartment's long plastered and chandeliered gallery, which is ideal for the display of art. The public rooms create their own formal enfilade of spaces, including a living room with two exposures, a reception room, a formal dining room, and a library. Adjacent living spaces include the media room, and the multifunctional sitting room, as well a study that can also function as an additional bedroom, with its own bath. The eat-in chef's kitchen, of marble and stainless steel, is accessed by a wet bar that can also serve as a butler's pantry.  The vast, 38 foot long primary bedroom, with a fireplace and three exposures, is at the heart of an owner's wing which contains two massive dressing rooms with custom mirrored cabinetry, two luxurious marble bathrooms, and an adjacent home gym. Closing a hallway door can make the gym part of the master suite for added privacy.  At the opposite end of the grand gallery, a wing for family or guests contains three bedrooms, each with its own large en-suite baths and spacious closet. Also provided are a powder room off the main foyer, copious closets and storage spaces, four wood-burning fireplaces, and high ceilings throughout. Service spaces include a laundry room, a staff room with a private bath, and a pantry, as well as a separate service entrance.