Understated elegance and refined taste define the aesthetic at this spectacular and contemporary, turn-key 12,000 sq.ft. mansion architected by Roger Ferris with interiors by Julie Hillman Design. Every detail thoughtfully executed with no expense spared. On a block notable for its twenty-one historic mansions, this unprecedented offering sprawls over 7 floors, including a south facing garden and a rooftop terrace with direct views onto the Metropolitan Museum of Art. This affords a rare opportunity to own one of the most prestigious homes in the world. Distinguished by a marble base, red Flemish brick and a glass-paneled mansard, the original, historic neo-Federal faade belies the entirely new construction awaiting behind. A complete rebuild of this home delivered modern, clean lines, spacious rooms and light flooding in from south-facing floor-to-ceiling windows and terraces on each floor. Enter the majestic doubled-height gallery with a 21' foot ceiling. A custom one-piece Corian spiral staircase soars to a skylight pouring light throughout the home. A lengthy entry leads you through ample closet space and a polished Grey Onyx-clad powder room, followed by the dining room stretching back to a terrace overlooking the garden. Access the kitchen on the garden floor through a rear stairwell off the dining area, allowing for seamless entertaining. The massive chef's kitchen features custom Bulthaup cabinetry, top-of-the-line appliances, a Carrara marble dining island and flows elegantly to a breakfast room. A landscaped garden clad in Garapa wood affords maximum privacy and a calming, Zen atmosphere. Ascend to the parlor floor with a 34' long living room crowned by a Jet Mist Cross Cut Light Leather stone clad gas fireplace and discreetly tucked away wet bar, as well as yet another spacious terrace. Occupying the entire third floor, the plush primary bedroom suite exemplifies ultimate glamor and luxury. A huge dressing room with straw marquetry Italian veneer closets sits adjacent to a Statuary White and Calcutta Gold marble bathroom with a huge soaking tub. Another full bathroom with Afyon White marble finishes is annexed through a custom-designed walnut veneer walk-in closet. Two more bedrooms of equally ample square footage occupy the fourth floor, each with their own private bathrooms and walk-in closets. The fifth floor hosts a self-contained guest suite replete with a sitting room, kitchenette, full bathroom and walk-in closet, as well as a separate study accented by an 11' floor-to-ceiling glass wall and a bespoke art installation spanning two walls by influential decorative artist Ingrid Donat. This magnificent home is entirely serviced by a generously-sized custom leather-paneled elevator and, with a nod to total discretion, features a separate service entrance including a separate stairwell to the kitchen and full mud room. A lower level encompassing 1900 sq.ft., contains a spacious rec room with two full bathrooms, three storage rooms that can be repurposed as a golf simulator or wine room, among other options, as well as a full laundry room with three washers and dryers each. State-of-the-art security systems, recessed HVAC, surround sound and Lutron lighting systems round out the white glove amenities of this grand, stately townhouse.