SOLD FOR $34,000,000
· Closed December 8, 2016
551 W 21ST Street #PHC
MLS® #RLS10009639
Listing by Brown Harris Stevens Residential Sales LLC
3
Bedrooms
4
Baths
6,137
Sq. Ft.
2015
Year Built
Quick Summary
Property Highlights
- Exposure: East,North,South,West facing
- Parking: Private garage
- New Construction: Brand new building
Property Details
Listing History
| Event | Date | Price | Change |
|---|---|---|---|
| Listed | Mar 13, 2015 | $40,000,000 | - |
| Currently | May 14, 2026 | $34,000,000 | -15.0% |
Description
551 West 21st Street's Penthouse C embodies the distinctive creative process of Foster + Partners, one of the world's most prestigious architecture practices. Winner of the Pritzker Architecture Prize, Foster + Partners is renowned for their holistic approach to design, influenced by the material and transcendent needs of the people, always with utmost consideration of the culture and context in which they build.
Rising over 200 feet above the West Chelsea arts district, Foster + Partner's magnificent 6,137 square foot Penthouse C offers column-free interiors and panoramic views, particularly from the nearly 2,000 square feet of private outdoor space. With dedicated elevator access through both the entertaining and sleeping areas of the home, Penthouse C delivers incredible scale and perpetually vivid sunrise-to-sunset views over Manhattan and the Hudson River.
Spanning the entire eighteenth floor, this extraordinary home is defined by a classic floor plan, akin to those of a bygone era, reinterpreted with a modernist sensibility and an unprecedented attention to detail. Direct elevator access into an elegant and gracious vestibule with custom millwork and cove lighting leads one through the stately center gallery that delineates the entertaining rooms from the private living quarters. The vast corner entertainment wing is comprised of an impressive grand room and club space separated by a central double-sided wood burning fireplace. A fifty-seven-foot-long terrace wraps the entire northwest corner of the grand room, while a thirty-four-foot-long loggia lines the western perimeter, revealing coveted views over New York City's most acclaimed landmarks and the Hudson River. A thirty-five-foot corner dining room off the center library invites lively dinner parties and entertaining. Luminous metal reveals throughout perfectly frame each window and provide perimeter seating for quiet contemplation and breathtaking views of the ever-changing sky.
A thirty-foot-long chef's kitchen designed by Foster + Partners and produced by Molteni & C-Dada includes beveled Blanco de Macael marble countertops with matching backsplash and natural stained oak cabinetry. Top-of-the-line appliances including a Gaggenau cooktop, barbeque grill and Teppanyaki grill with two Best Range extraction hoods, Miele integrated coffee machine and warming drawers, and integrated Fisher & Paykel cooling drawers equip this sunlit, south-facing kitchen. With a separate butler's pantry containing additional rows of refrigeration (including two built-in thirty-inch Sub-Zero wine coolers providing storage for 300 bottles), the Penthouse kitchen permits lively dinner parties and intimate family gatherings. The nearly 1,000 square foot corner master suite is extended by its own fifty-three-foot-long terrace running the entire eastern perimeter and an additional thirty-three-foot-long loggia that opens to the warm southern horizon. The exceedingly luxurious corner master bathroom, across from a stunningly considered dressing room with direct terrace access, features enormous windows with northern city and river views, a bespoke vanity, separate enclosed shower and water closet and a freestanding bathtub. Two additional large bedrooms have en-suite bathrooms with Travertino stone tile floors, custom designed cabinets with beveled edges, and Dornbracht fixtures.
Eleven-and-a-half-foot ceilings, solid white oak herringbone floors and sets of nine-foot-high double doors with deep wood thresholds are among the many details that exemplify the richmateriality infused into this Foster + Partners home. The substantial outdoor areas of Penthouse C are seamlessly married to the interiors through expansive ten-foot-high tempered glass doors, and are fully equipped with electricity, plumbing and lighting.
551 West 21st Street features a private, gated drive court urrounded 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-time doorman and a concierge, porter and valet services, a state-of-the-art fitness center with a his and her spa, yoga room, residents' lounge, children's playroom, parking for the residents, bike storage, a live-in super and a dedicated, separate service entrance. Occupancy anticipated for first quarter 2016.
Subject to availability and additional cost.
Exclusive Marketing and Sales Agent: Brown Harris Stevens Development Marketing. This is not an offering. The complete terms are in an offering plan available from the sponsor. File No. CD13-0133.The artist and computer renderings and interior decorations, finishes, fixtures, appliances and furnishings are provided for illustrative purposes only. Approximate finished floor to finished ceiling heights are measured from top of flooring to underside of finished ceiling. At beam drops and/or where there are concealed mechanical pipes, equipment, ducts, soffits or dropped ceilings, ceiling heights may be lower than the stated measurements. Ceiling heights may vary from room to room. Sponsor makes no representation or warranties except as may be set forth in the Offering Plan. Sponsor reserves the right to make substitutions of material, equipment, fixtures, finishes and appliances in accordance with the terms of the Offering Plan.
Features & Amenities
Interior Features
Building Information
Financial Details
About Chelsea
View All Chelsea ListingsChelsea is the epicenter of New York’s contemporary art world and a hub for innovative architecture. Home to the High Line and Chelsea Market, the neighborhood mixes industrial history with modern luxury. The real estate market here is dominated by high-end condominium developments designed by world-renowned architects, alongside historic pre-war lofts and historic townhouses in the Chelsea Historic District.
Chelsea Live Market Data
View NeighborhoodActive Listings
318
Median Asking Price
$1.69M
Median $/Sqft
$1,734
Avg Days on Market
N/A
New This Week
19
Price Reduced
30%
Sold (30 Days)
30
Median Sale Price
$2.05M
Live data from RLS at REBNY • Updated 5/14/26, 2:34 AM EST
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Location
551 W 21ST Street #PHC, Chelsea, New York County • Near 11th Avenue
Floor Plans
Building Information
Official NYC property records for this building
Tax & Assessment
Note: Individual unit taxes may differ. Verify current tax bills with NYC DOF.
Source: NYC PLUTO (Primary Land Use Tax Lot Output), NYC Department of City Planning (data.cityofnewyork.us)
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Listing Data
RLS® at REBNY (Real Estate Board of New York) via Trestle API. Updated in real-time.
Building Data
NYC PLUTO (Primary Land Use Tax Lot Output), NYC Department of City Planning. Updated quarterly.
Market Data
RLS® at REBNY (Real Estate Board of New York). Live data updated in real-time.
Map & Location
OpenStreetMap contributors via Leaflet. Geocoding via Nominatim.
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Frequently Asked Questions
Common questions about this property
The current listed common charges are $12,100 per month. Confirm the exact amount with the listing broker before making an offer.
The current listed annual property tax is $113,760, or roughly $9,480 per month. Verify the current assessment with your attorney before closing.
This property has 3 bedrooms and 4 full bathrooms.
The listed interior living area is 6,137 square feet. Verify dimensions independently during due diligence.
According to MLS records, the building was constructed in 2015, making it approximately 11 years old.
This listing is a condominium. Buyers receive a deed to their individual unit and own their space outright, subject to condo association rules.
Pets are permitted at this property. Contact the listing broker for weight limits or breed restrictions.
At the current list price of $34,000,000 for 6,137 sq ft, the asking price per square foot is approximately $5,540. This figure is for reference only and may differ from appraised or assessed values.
To schedule a private showing, contact Milton Coste at (917) 416-7433 or mcoste@kwnyc.com. Per REBNY guidelines effective 2025, a Buyer Representation Agreement is required before a buyer's broker can show you properties. You may attend open houses independently without one.
Have a question not answered here?
(917) 416-7433Listing Courtesy of Brown Harris Stevens Residential Sales LLC - Erin Boisson Aries
Listing Contact: (917) 701-7012
Listing information for certain New York City properties provided courtesy of the Real Estate Board of New York's Residential Listing Service (the "RLS"). The information contained in this listing has not been verified by the RLS and should be verified by the consumer. The listing information provided here is for the consumer's personal, non-commercial use. Retransmission, redistribution or copying of this listing information is strictly prohibited except in connection with a consumer's consideration of the purchase and/or sale of an individual property. This listing information is not verified for authenticity or accuracy and is not guaranteed and may not reflect all real estate activity in the market. ©2026 The Real Estate Board of New York, Inc., all rights reserved. This advertisement does not suggest that the broker has a listing in this property or properties or that any property is currently available.
Broker Commission Disclosure: Broker commissions are not set by law and are fully negotiable.
Buyer Notice: Planning to work with a buyer's broker? A Buyer Representation Agreement is required before your broker can show you properties, per REBNY/UCBA guidelines (effective 2025). You may attend open houses independently without one.
RLS Data display by Keller Williams NYC. Data last updated on 5/14/2026 at 6:34 AM UTC