This extraordinary four bedroom, four-and-a-half-bathroom home at the masterfully designed 551 West 21st Street by Foster + Partners sits high above West Chelsea's streetscape and the High Line Park with sweeping panoramic views of the Hudson River, midtown, downtown Manhattan, and beyond through four magical and expansive exposures. With direct elevator access through a private vestibule, this stately, column-free residence offers a dramatic center gallery-by which the private quarters are gracefully separated from the entertaining and living spaces. A southwest-facing 37' by 19' corner grand room with adjacent library and formal dining room provide for magnificent sunset views overlooking the Hudson River and Parks.With exquisitely crafted interiors by Foster + Partners, Residence 16A includes a top-of-the-line kitchen by Molteni with beveled Blanco de Macael marble countertops and backsplash, natural stained oak cabinetry, and a suite of state-of-the-art appliances such as a Subzero refrigerator and freezer, Fisher Paykel cooling drawers, Gaggenau 5-burner cooktop with Falmec extraction hood, as well as two Miele ovens, two dishwashers, and a built in espresso machine. Other features include custom cove lighting in the entrance foyer, and a large, separate utility room with side by side Miele washer and dryer, as well as a dedicated service entrance for deliveries.This exceptional home offers spaces with 11' ceilings that are akin to a more elegant era, reinterpreted through the architect's modernist sensibility: French-inspired oak herringbone floors, grand 9' tall double doors and deep thresholds frame these distinctive rooms while luminous metal reveals and a deep facade for perimeter seating border each picture window and its incredible view. A stunning, corner master bedroom suite with direct river views features a fully finished, large walk-in closet with custom millwork, a luxurious master bathroom oasis with double door entry, a freestanding tub, a separate enclosed shower and water closet with floor to ceiling translucent glass doors, radiant heated Luna Black granite tiling and a custom Corian vanity. Conjointly, the master suite offers an adjacent sitting room and en-suite bathroom that easily converts back to a fourth bedroom, a second walk-in closet or private study. The two additional bedrooms, one on a corner with grand north eastern city views, are classically appointed with en-suite bathrooms that include Travertino Striato stone floors and elegant Dornbracht fixtures.551 West 21st Street features an impressive gated drive court surrounded by a twenty-foot green wall and a dramatic, awe-inspiring thirty-four-foot, double height lobby with grand chandelier. Additional amenities include a full staff of doormen, concierge, porters and valet services, a state-of-the-art fitness center with a his and her spa treatment room, yoga room, residents' lounge, children's playroom, parking for the residents (subject to availability and additional cost), bike storage, a live-in resident manager and a dedicated, separate service entrance for all deliveries and move in/move out.