Terrific opportunity to combine two apartments into a wonderful duplex. 10/11C offers a discerning buyer the ability to create an ideal layout with three spacious bedrooms, a large living area and a separate dining room. In the heart of Flatiron, this opportunity offers elegance and space at an amazing value in a central downtown location. The sophisticated light-filled residence has a beautiful contemporary design throughout and turning this into a duplex would offer a one-of-a-kind layout in the building once completed. This would be a beautiful home with over 2,000 square feet of living space, incredible light, central heat/AC and 9.5' ceilings throughout. The open kitchen features a high-end appliance package with Miele appliances, grey Auberge stone countertops, and Poliform Varenna cabinetry with ample storage.    Designed by renowned American architect Hugh Hardy, 4W21 epitomizes Downtown elegance, featuring understated interiors by New York designer Antony Todd. This boutique, full-service cond-op building offers condo rules and allows subletting, co-purchasing, parent-purchasing and pied-a tierres. Amenities include superlative 24-hour doorman service, live-in superintendent, landscaped common terrace, onsite parking garage and a fully equipped fitness center. Centrally located within walking distance to Union Square, Madison Square Park, Chelsea, & Gramercy neighborhoods, and surrounded by every amenity including abundant shopping, restaurants and transportation alternatives. PETS ARE WELCOME.