Welcome to an extraordinary offering that stands in a league of its own. With only 78 units across 20 floors, this exclusive penthouse is the only sole private full floor in the building, ensuring unparalleled privacy and distinction. Perched on the 20th floor, this private penthouse boasts breathtaking open views from nearly every exposure. Your elevator opens directly into your own personal sanctuary, where a stunning terrace extends along the entire great room, overlooking 79th Street, just off Park Avenue. This remarkable outdoor space provides unobstructed views stretching all the way to Central Park and beyond. The terrace is generously sized, ideal for dining, lounging, or enjoying serene moments of solitude. Whether entertaining guests, immersing yourself in a good book, or simply unwinding, this outdoor oasis enhances your living experience. The terrace is equipped with an irrigation system and electricity, alongside a retractable awning for sun protection or stargazing at night. This exceptional full-floor property is a singular offering within the entire building, rarely available and featuring spectacular views to the south, north, east, and west. Bathed in natural light, the home enjoys four open exposures, creating a radiant ambiance all day long. The thoughtful design facilitates a seamless flow between living, dining, and entertaining spaces, making it perfectly suited for both intimate gatherings and grand celebrations. Nestled on one of the most coveted blocks in the heart of the Upper East Side, this residence is a regal retreat that harmoniously blends luxury and comfort. The expansive floor plan provides endless possibilities to craft your ideal living environment, serving as both a sanctuary for relaxation and a vibrant space for social gatherings. Currently configured with a spacious open living room, three bedrooms, and three baths (all in good original condition), the home features a spacious kitchen with ample dining space, stainless steel appliances, open shelving, and a spectacular south-facing window that offers magnificent views of the Manhattan skyline, opens into a large dining - entertaining area. Adjacent to the kitchen and eat dining area, one will find another sizable south-facing bonus room that is sizable with superb views and ideal for a home office or guest bedroom, housing a vented washer/dryer. This unique home is a rare gem on the Upper East Side, conveniently located near Central Park, the Metropolitan Museum, the Lexington Avenue Subway, the M79 Crosstown Bus Line, and an array of fabulous restaurants and shops. Experience the rare opportunity to call this extraordinary residence your own-a true standout property unrivaled in elegance and charm, promising a lifestyle of sophistication at the pinnacle of city living. A must-see! Please note there is a 2% flip tax.