Welcome to the top: The Penthouse at 18 Gramercy Park South, the most prestigious building in the heart of Gramercy Park, New York City. Nestled directly across Gramercy Park and with keys to the exclusive park, this remarkable 4-bedroom duplex penthouse provides a living experience unlike any other in downtown NYC. Designed by world-famous architect Robert A.M. Stern, renowned for his iconic uptown projects such as 220 Central Park South and 15 Central Park West, this penthouse promises an unparalleled living experience The penthouse spans an impressive 6,329 square feet of living space, accompanied by an additional 1,889 square feet of private terraces that boast breathtaking views of the city and park, providing a serene escape from the bustling city below. Step inside and be greeted by a grand entrance gallery and key-locked elevator that opens directly into the penthouse. The foyer flows seamlessly into the spacious 40-foot living room with 63 multi-paned windows that provide ample natural light and breathtaking views of Gramercy Park and the city. The adjacent windowed library/cocktail lounge and windowed dining room are the perfect spaces for entertaining guests, while the luxurious windowed eat-in kitchen, complete with hand-painted cabinetry, Wolf ovens, a Sub-Zero refrigerator, and a Miele dishwasher, is perfect for hosting dinner parties. Additionally, there is a convenient staff room with an en-suite bath located behind the kitchen and three sun-drenched bedrooms with luxurious en-suite marble bathrooms on this floor. The upper level, accessible via the grand central staircase or elevator, offers a great room with a cozy gas fireplace, a massive wrap-around terrace facing Gramercy Park, and incomparable views. A convenient wet bar for entertaining, complete with a sink, refrigerator, and dishwasher, is located next to the great room, along with a stylish, windowed powder room, and a private sun deck with a heated endless pool. The primary suite offers two spacious sun-kissed terraces, one with a hot tub, and sun-bathed south, east, and west exposures with expansive views. The sparkling spa-like primary bathroom is equipped with heated floors, a steam shower, and a free-standing cast iron bathtub, providing the ultimate in relaxation and luxury. This property is truly special, with its rift and quarter sawn white oak hardwood floors, soaring beamed ceilings, Lutron lighting, herringbone floors, polished marble window sills, central heat and air conditioning with separate temperature zones for each room, and wiring for electric shades. 18 Gramercy Park South is a Georgian Revival style luxury condominium, built in 1927, redesigned by Robert A. M. Stern Architects in 2013. This boutique building consists of only 16 homes on 18 floors and offers five-star amenities including a full-time resident manager, 24-hour doorman, full-time concierge and staff of porters, a club room, and a spa and fitness center.