A One-of-a-Kind Penthouse Duplex with Private Roof Deck in a Classic UWS Brownstone This is the home you've been waiting for. This breathtaking duplex penthouse, occupying the top two floors of a beautifully maintained pre-war brownstone and featuring a stunning private terrace, has been gut renovated to the highest standard, seamlessly blending timeless character with contemporary luxury design. The main level unfolds with an open, light-filled layout ideal for both stylish entertaining and relaxed daily living. A beautifully appointed marble kitchen centers the space, featuring top-of-the-line appliances, custom cabinetry, and counter seating. Adjacent, a tailored banquette dining area offers an intimate yet versatile setting for gatherings. The expansive living room is anchored by a gas fireplace that can be converted to wood-burning. Also on this level: a serene bedroom with its own private terrace and a refined en-suite bath clad in elegant marble tilework. A striking glass-enclosed staircase leads to the show-stopping upper floor, where the primary suite stuns with dramatic scale and detail-soaring ceilings, a floor-to-ceiling wall of windows, and an indoor/outdoor gas fireplace. A spacious walk-in closet and spa-quality marble bath complete the suite, featuring radiant heated floors, designer fixtures, a window, and a skylight that bathes the space in natural light. The piece de resistance: a private, fully landscaped roof deck with an outdoor kitchenette, lush greenery, and sweeping city views-a rare and magical outdoor sanctuary. Additional highlights include central heating and air, soundproofed white oak floors, washer and vented dryer, attic storage, exquisite custom wood paneling, LED lighting, and high-end finishes throughout. Building is pet friendly and permits 80% financing. Downtown loft sensibility meets Upper West Side charm, an extraordinary blend of serenity, sophistication, and location. Just moments from Central Park, the Museum of Natural History, beloved cafes, gourmet markets, and transit. Truly unlike anything else on the market. Schedule your private showing today, this one will not last.