Perched high on the 17th floor of Lord Norman Foster's architectural landmark at 551 West 21st Street, 17A is a sprawling 4,271-square-foot corner residence that represents a rare triumph of modern design with urban sophistication. Boasting 11-foot ceilings with some of the tallest proportions offered in the entire building, floor-to-ceiling glass wrap around all four exposures. The home is bathed in glorious natural light from sunrise to sunset. Sweeping 360-degree views stretch across the Hudson River down to the Statue of Liberty, across the glittering expanse of the Midtown skyline, and some of the most notable buildings of downtown Manhattan. Direct private elevator access opens into an intimate gallery entrance, setting a refined tone that continues throughout the home. Foster’s attention to every detail demonstrates an uncompromising commitment to craft, from French oak herringbone floors to luminous bronze window reveals. The expansive 38-foot great room runs along the river, providing an effortless canvas for large-scale entertaining and gracious living. Just off the main living space, a dedicated home office, media room, or den sits behind custom wood shelving, offering quiet seclusion. The custom Molteni kitchen is a masterclass in culinary design, featuring rich oak millwork, Blanco de Macael marble countertops with full slab backsplash, and a generous center island. A fully integrated suite of top-tier appliances includes a Gaggenau vented cooktop, Sub-Zero refrigeration, and Miele coffee and warming systems, complemented by a window dining nook for casual everyday dining. The private bedroom wing comprises four well-appointed en-suite bedrooms. The primary suite is a sanctuary unto itself, offering a dedicated custom dressing room and a spa-like bath appointed with radiant-heated Luna Black granite, a custom Corian vanity, a freestanding soaking tub, and a glass-enclosed shower. Each additional bedroom features a tailored en-suite stone bath, sweeping skyline vistas, and built-in window seating. Discreet yet striking once entering the grounds, 551W21 designed by Foster + Partners, is Lord Norman Foster's first residential project in the United States to evoke serenity and calm in a bustling metropolis. Residents arrive through a private gated motor court with direct access into a 34-foot double-height lobby anchored by a sculptural chandelier. This luxurious building offers a full-time doorman, concierge, porter, and live-in resident manager, alongside a state-of-the-art fitness center with spa, sauna, and steam, a residents' lounge, children's playroom, and bicycle storage. Onsite car valet service for an additional cost is also available. Set in the heart of West Chelsea's Gallery District, with the High Line, Hudson Yards, Hudson River Park, Little Island, Chelsea Market, Faena Hotel, and the Heliport just moments away, this opportunity offers endless ways to live and enjoy all that is great about downtown living. Taxes listed with primary condo tax abatement.