Welcome to 860 United Nations Plaza, Unit 35/36D-an extraordinary ""bring your architect"" opportunity at one of the city's most prestigious addresses. With over 3,400 sqft of space, this duplex offers breathtaking river and skyline views and endless potential to create your dream home. Perched on the 35th and 36th floors, this grand residence is a masterclass in elegance, featuring a graceful spiral staircase, a private elevator, and a wood-burning fireplace. The entry level welcomes you with a well-proportioned gallery that flows seamlessly into a grand living room with floor-to-ceiling windows, a formal dining room, and a large kitchen with a breakfast area. Additional conveniences include a laundry area and a powder room. Upstairs, the spacious primary suite boasts corner exposures, an ensuite marble bath, generous amounts of closet space, plus room for a make-up vanity or sitting area. Two additional bedrooms each have their own ensuite baths, generous closet space and can accommodate king size beds. 860 United Nations Plaza offers a full-service, white-glove experience with an extensive amenity package. Residents enjoy a full-time doorman and concierge, two furnished sundecks, a state-of-the-art fitness center, a Pilates studio, an in-house valet, a golf simulator, a billiards room, two conference rooms, an entertainment room with a full kitchen, a bicycle room, and private storage. The building also features a private driveway and an on-site garage. Designed by Harrison & Abramovitz in 1966, this iconic modernist building has long been home to prominent figures in politics, entertainment, and commerce. Known for its gracious layouts, soaring ceilings, and unparalleled service, 860 UN Plaza remains a pinnacle of sophisticated city living. Pets and pieds-à-terre are permitted, international buyers are welcome and apartments may be purchased in a trust. Building allows 75% financing. Maintenance includes window washing ($103.20) and electricity ($360.65). This is an incredible opportunity to customize a home to your exact specifications in one of New York's most sought-after addresses. Bring your architect and transform this space into your dream residence!