Manhattan sophistication at its finest. This custom duplex inside a mansion is the perfect marriage of old world elegance and modern convenience awaits in this sophisticated three-bedroom, three-and-a half bathroom 2,715 square foot duplex situated in a landmarked, 25' limestone mansion on the "Gold Coast" of the Upper East Side. The extravagant, sun-filled duplex is replete with custom details, a keyed elevator opens directly into a mahogany paneled grand foyer, leading to the sun kissed, south-facing expansive living room showcasing nearly floor-to-ceiling windows with Juliet balconies, a marble wood-burning fireplace, and an adjoining bar with a Subzero wine cooler and undercounter refrigerated drawers. A charming, windowed media alcove with a custom built-in entertainment center separates the two winged bedrooms on this level. The luxurious master suite hosts its own wood burning fireplace and massive custom walk-in closet by Ornare. This closet leads to a state-of-the-art, five-piece marble bathroom fitted with a jacuzzi tub, spa-style steam shower for two, clever vanity with a mirrored TV, radiant heated floor, and exquisite dual sinks. Gorgeous mahogany bookcase doors open to the spacious second bedroom, which offers an en-suite bathroom with a deep soaking tub. Up the gorgeously detailed mahogany staircase is a light-filled formal dining room featuring a limestone wood burning fireplace with an adjacent full bathroom, home office, laundry room, and spacious third bedroom with custom millwork. The other side of the dining room opens into a spectacular windowed, sun drenched chef's kitchen featuring custom cabinetry, stone counters, radiant heated floor and appliances by Sub Zero, Miele, Gaggenau, and Thermador including a six burner cooktop, grill top, double oven, warming drawer, and trash compactor. Beautiful mahogany millwork, detailed coffered ceilings, graceful crown molding, recessed lighting, central air, and a Crestron control system are throughout. The Dunham House is an eight unit cooperative steps from Central Park nestled between Park and Madison Avenues in one of the most coveted neighborhoods in the world. This prime location offers convenient access to museums and a plethora of the finest restaurants and shops in New York City. The 6 train is one block away. This stunning mansion was built in 1899 by Carrere & Hastings, the same architectural firm that designed The Frick Collection and The NY Public Library. Apartment Features: East exposure, North exposure, South exposure, West exposure, Wood-burning fireplace, Balcony - juliet, Partial city view, Prewar detail, Floors - hardwood, Light - excellent, Windows - oversized, Windows - new, Modern kitchen, Renovated bathroom, Marble bath, Storage space, Walk in closets, Great closet space, Washer/dryer, Dishwasher, Security system Building Features: Roof deck, Private storage. This residence is an experience; the perfect combination of classic beauty and contemporary living.