Welcome to the Penthouse at 25 Mercer. This one-of-a-kind Soho loft comprises the top two floors and roof of this classic pre-war building in the heart of the Soho Cast Iron Historic District. No detail was overlooked when designing this grand four bedroom, four and a half bathroom, 4,350 square feet home with an impressive 2,620 square feet of private outdoor roof terrace. This trophy asset is a true masterpiece.Direct elevator entry opens to a private foyer welcoming you into an expansive living space with dramatic 13-foot ceilings, impressive dining area with linear fireplace and dramatic living room with a sweeping glass staircase. The refined chef's kitchen is designed with sophisticated clean lines, marble island, integrated Gaggenau appliances, vented hood, custom cabinetry, Dornbracht fixtures and a beautiful skylight. Adjacent to the kitchen is a glass encased wine room designed for the most discerning wine connoisseur - a piece of art in itself! A beautiful powder room is off the living space, designed with Vola faucets, heated floors, integrated lighting, and an imported underlit onyx vanity. Also on the main level, the primary suite is a luxurious sanctuary complete its own media room, two custom dressing rooms, and an elegant marble bath with soaking tub, Vola faucets, double vanity, Toto toilet, radiant heated flooring and a double shower. The lower level includes three guest or family suites, a lounge/den, laundry room with dry cleaning closet and storage. Each bedroom suite is complete with an en-suite bathroom designed to evoke meditative relaxation. The showstopper of this Penthouse is the rooftop terrace, the ultimate space for entertaining or just enjoying an evening taking in New York City under the stars. Dedicated entirely to dueling terraces, which include an integrated fireplace, outdoor kitchen, outdoor TV, multiple private outdoor seating and dining areas, and 360-degree views of downtown Manhattan. This palatial loft is clad with wide plank white oak hardwood floors, imported natural stone, and marble throughout.Other features of the unit include multi-zone central A/C new dedicated boiler & mechanicals, and a utility room with a washer and dryer. Fully equipped as a smart home, you can digitally control all tech elements from an iPad, iPhone or other mobile device. Built in 1867, 25 Mercer represents the architectural beauty of New York's elegant Gilded Age. Five exclusive residences, ranging from a townhouse, to lofts, to a penthouse, all offer a modern interpretation of the classic Soho loft building, which balance perfectly restored cast iron detailing with sophisticated modern design. Monitored by a 24/7 virtual doorman. Close to dining, cafes, fashion, parks & play, retail, and arts & culture, this building is one of the most desirable locations within the fabled SoHo Cast Iron Historic District.