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551W21 condominiums, located at 551 West 21st Street in West Chelsea. 551W21 condominiums, located at 551 West 21st Street in West Chelsea.
SR Capital and GTIS Partners’ latest condominium building, 551W21, is nearing completion at 551 West 21st Street in Chelsea. Designed by Lord Norman Foster and Beyer Blinder Belle, the asymmetrical building tops out at 19 stories, featuring large windows framed in black and gold metal. The tower stands as Foster’s third residential building in Manhattan, joining 50 United Nations Plaza in Turtle Bay and 100 East 53rd Street in Midtown East. The building will feature 44 condominium residences, and is expected to be complete this year.
The building tops out at 19 floors and features a grand sculptural chandelier in the fully-attended lobby.

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551W21, 551 West 21st Street
551W21, 551 West 21st Street Chelsea
Windows framed in black and gold-colored metal
There are eight remaining units on the market: three 1-bedroom units starting from $2.55 million, three 2-bedroom units from $4.925 million, one 3-bedroom unit for $7.85 million, and one 4-bedroom unit for $17.95 million. There are also two apartments for rent: one 1-bedroom unit for $10,000/month and one 2-bedroom unit for $15,500/month. The building’s average price per square foot comes in at $3,785. For reference, the average Chelsea condo price as of August 1 is $1,959 per square foot, down from last August’s average price of $2,114 per square foot.
Residences begin on the tower’s fifth floor and are designed by Foster+Partners. Interiors feature ceiling heights of up to 11-feet, French-inspired oak herringbone floors, deep wood thresholds, 9-foot high interior wood doors, custom designed millwork, integrated recessed cove lighting, expansive windows with double glazing and high sound attenuation, curved window seats, and pre-wiring for future technology installations.
Oak herringbone floors
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Custom kitchens include polished Blanco Macael marble countertops and backsplashes, stained oak cabinetry, Dornbracht fixtures in matte platinum finishes, Kohler stainless steel professional sinks with Franke disposals, fully integrated Sub-Zero refrigerators and freezers, Gaggenau cooktops, Fisher & Paykel Sub-Zero cooling drawers, and Miele microwaves, dishwashers, and convection ovens. Master baths feature Luna black granite flooring, Quarella stone wall tiles, Dornbracht fixtures, Americh freestanding tubs, custom vanities, radiant heated flooring, and Duravit water closets and separate glass enclosed showers. Residences also include similarly appointed secondary baths and powder rooms.
Living room
Kitchen and dining room
Penthouse bedroom
The tower features three penthouse units. These full-floor homes span approximately 6,200 square feet each, with ceiling heights up to 12 feet, majestic grand rooms, elevator landings, wood burning double-sided fireplaces, private terraces, and recessed loggias. Kitchens feature Gaggenau barbecue and teppanyaki grills, and butler’s pantries. The uppermost penthouse offers a private roof terrace spanning over 4,000 square feet with a 61-foot long swimming pool.
Penthouse roof deck with 61-foot long pool
Amenities at 551W21 begin with its large gated drive court surrounded by a 20-foot high green wall. From there, residents enter a 34-foot tall double-height lobby, complete with a prismatic glass wall, cast ribbed walls with brass trim accents, a custom-designed chandelier, a full-time doorman and concierge, porter and valet service, and a separate dedicated service entry. The tower’s state-of-the-art fitness center is equipped with a yoga room, a steam room, a sauna, and a treatment room. The luxury continues with a children’s playroom, a bicycle room, and a resident’s lounge with a fireplace and catering kitchen.
Gated drive court
The tower does not stand alone in its glory. 551W21 occupies an esteemed spot on “Starchitect Row," with renowned neighbors like Frank Gehry's IAC Headquarters at 555 West 18th Street, Jean Nouvel's "vision machine" at 100 Eleventh Avenue, and Bjarke Ingels' 501 West 17th Street. The building also stands a few doors down HFZ's 302-unit condo development at 76 Eleventh Avenue which is also designed by Bjarke Ingels.
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