Penthouse 21D - 10 East End Avenue Three Bedrooms Three Bathrooms Powder Room Approx. 3,000 SF Interior 800 SF Private Terrace Spectacular East River Views Welcome to Penthouse 21D, a remarkable 3-bedroom, 3.5-bath duplex offering sweeping East River and skyline views, designer interiors, and an open layout ideal for both everyday living and effortless entertaining. Spanning over 3,000 square feet of interior space with an additional 800-square-foot private rooftop terrace, this home represents the best of refined East Side living. Upon entering the 21st floor, a gracious foyer opens into an expansive great room wrapped in windows with south and east exposures that flood the space with natural light. This elegant room features gray-stained maple floors and custom built-ins and flows seamlessly into the beautifully planted terrace. The open chef's kitchen is impeccably renovated with custom designer cabinetry, Silestone countertops, and top-of-the-line stainless steel appliances, including a Wolf vented five-burner cooktop, convection and gas ovens, built-in microwave, and Miele refrigerator and dishwasher. A center island with seating and a large walk-in pantry complete this thoughtfully designed culinary space. Off the foyer, double glass-panel doors lead to a bright secondary suite with south exposure, a walk-in closet, and an en-suite bath with limestone floors and a Duravit soaking tub/shower. Further down the hallway, a third bedroom offers custom built-ins and its own en-suite bathroom with a walk-in shower. A powder room, wine room, and a dedicated laundry room with side-by-side LG washer and dryer plus utility sink complete this level. A sculptural, beautifully crafted staircase leads to the upper floor, home to the luxurious primary suite framed by breathtaking views. This serene retreat features remote-controlled blackout shades, a custom television cabinet, and an expansive dressing area with bespoke built-ins. The spa-level primary bathroom is designed with separate vanity areas and a Hydro Pro Aqua Boost water system shower. Adjacent to the staircase and directly off the primary suite is the crown jewel of the home-an approximately 800-square-foot private terrace with irrigated plantings, a gas grill, and a large outdoor SunBrite TV. Offering panoramic southern and eastern exposures, it creates a truly unmatched indoor-outdoor living experience. Additional features include central air conditioning, an integrated Sonos sound system, and the flexibility to configure the layout to accommodate a fourth bedroom if desired. Building Amenities 10 East End Avenue is a well-regarded postwar cooperative offering a live-in superintendent, full-time doorman, updated fitness center, furnished roof deck, storage, bike room, and on-site parking garage. Pets, co-purchasing, gifting, guarantors, and up to 70% financing are permitted with board approval. Flip tax: 2%. 48 hours' notice required for showings.