Be the first to live in one of the largest condominiums available on the Upper East Side, Duplex 10/11 at The Benson, Madison Avenue's newest and most luxurious residential development. With architecture and interiors designed by Peter Pennoyer Architects, this limestone clad building with intricate ironwork and distinctive mullioned windows sets a new standard for beauty, lifestyle, and service. Duplex 10/11 comprises two full floor residences that have been masterfully combined to create a Mansion in Sky, providing for entertaining on a grand scale, and gracious living quarters that can be completely separate. The sky is truly the limit with how this approximately 8300 square foot, 8 Bedroom, 8 Bathroom (plus 2 Powder Rooms) home can be enjoyed (also can be easily used as 10 Bedrooms if desired). This is a resale, not a sponsor sale, so there are no new development fees and taxes! Floors 10 & 11 can also be sold separately if desired. 10th Floor (Living): As you enter this regal home through a custom wrought iron door, a Gallery welcomes you to a massive Great Room lined with a wall of West facing windows and gas fireplace, perfect as a central gathering place and informal entertaining. Off the Great Room is an oversized eat-in Kitchen with cabinetry by Christopher Peacock, featuring solid walnut interiors and honed Calacatta Gold marble on the island. Appliances include side by side Sub-Zero Refrigerator/Freezer units and a Miele package with an 8 burner, dual oven Range with a glass and polished nickel vented hood, Speed Oven, 2 Dishwashers, and a floor to ceiling Wine Fridge. On the other side of the Great Room is the spacious Media Room with views of the midtown skyline, which could also be used as a Private Gym/Yoga Studio. A Primary Suite features a wall of bay windows with open views of Madison Avenue, two walk-in closets, and a 5-fixture Primary Bath with separate water closet with Bidet, elliptical soaking tub, radiant heated floors, and oversized shower stall with rain showerhead. An adjacent Bedroom can easily be utilized as a massive en-suite Dressing Room if desired. Two more en-suite Bedrooms round out this floor, one of which is ideal as a Staff Room with its own separate entrance. A roomy windowed Storage Unit conveniently located near the entrance and a large Laundry Room with dual, full-sized Washer/Dryers complete these ample living quarters. With white oak floors in a Chevron pattern, Waterworks and Kalista fixtures throughout, high ceilings, and multi-zone, state-of-the art heating/cooling systems, no detail has been overlooked. 11th Floor: (Entertaining/Work): A similar but modified layout with identical finishes and designed with entertaining and work in mind, the 11th Floor features a Formal Dining Room, Living Room, Library, and large Catering Kitchen with separate entrance (can also serve as a primary Kitchen if desired). A second Primary Suite can be used as a luxurious Study, with an equally grand 5-fixture Primary Bath, and 2 walk-in closets. 3 additional Bedrooms provide the perfect spaces for multiple home offices/meeting spaces, or a guest wing that provides total separation from the owner's floor. Finally, a walk-in closet off the hallway provides the perfect location for a substantial wine cellar. The Benson is a 14-unit building with Doorman, Concierge, Resident Manager, and a Handyman/Porter. Amenities include a Gym with Peloton bikes, Steam and Sauna, Basketball Court, Cinema Room, Kid's Playroom, Pet Spa, Bike Room, and Rooftop with panoramic views of the city. There is an additional storage unit that comes deeded separately with the sale of this apartment. The Benson is located in the preeminent Upper East Side location, Madison Avenue between 79th and 80th Streets, one block from Central Park and only minutes to the Metropolitan Museum of Art and the best restaurants and shopping Madison Avenue has to offer.