For Sale · Listing by Compass
551 W 21st Street #17B
Chelsea, Manhattan
$11,650,000
551 W 21st Street #17B
MLS® #RLS20121278
Listing by Compass
- 3
- Bedrooms
- 3.5
- Baths
- 3,860
- Sq. Ft.
- 2015
- Year Built
Quick Summary
Property Highlights
- Views: River, Skyline
- Exposure: East,North,South facing
- Climate Control: Central Air
Property Details
Listing History
| Event | Date | Price | Change |
|---|---|---|---|
| Listed | Oct 15, 2026 | $11,650,000 | - |
| Currently | Oct 18, 2026 | $11,650,000 | - |
Description
On the 17th floor of Lord Norman Foster's architectural landmark at 551 West 21st Street, sits an oversized and glamorous 3,860-square-foot corner 3-bedroom residence. Wrapped in floor-to-ceiling glass across triple exposures and with incredible Manhattan Skyline views and ceilings rising above 11 feet with 13 oversized bronze windows filling every room with light from morning through sunset. Designed to be like apartment houses of old but distinctly modern, the private elevator opens into a nearly 22-foot gallery primed for art and modern living. With oak herringbone floors throughout and a proper 30-foot living room with river views, this home makes an immediate impression of sheer space and volume. A media room/home office sits through oversized oak double doors. The windowed chef’s kitchen pairs rich oak millwork with marble countertops. A center island with counter seating anchors the room, a cushioned window seat offers a spot to linger, and a fully integrated suite of appliances from Gaggenau, Sub-Zero, and Miele keeps the lines clean. Just beyond, a formal dining room with skyline views seats 10. The primary suite occupies its own corner wing, with an over 22-foot bedroom, a dedicated dressing room, and a spa-like bath appointed with a freestanding soaking tub, double vanity, and glass-enclosed shower. Two additional bedrooms each have en-suite bathrooms, including a corner bedroom with sweeping views of Hudson Yards and Midtown. A laundry closet with washer and dryer completes the residence. Discreet yet striking once entering the grounds, 551W21 designed by Foster + Partners, is Lord Norman Foster's first residential project in the United States. It evokes serenity, elegance 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.
Features & Amenities
Interior Features
Exterior Features
Building Amenities
Appliances
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
290
Median Asking Price
$1.61M
Median $/Sqft
$1,942
Avg Days on Market
N/A
New This Week
16
Price Reduced
34%
Sold (30 Days)
32
Median Sale Price
$1.77M
Live data from RLS at REBNY • Updated 10/18/26, 1:48 AM EST
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Location
551 W 21st Street #17B, Chelsea, New York County
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)
Want help estimating ownership costs or understanding building compliance? Let's discuss
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.
All data is provided for informational purposes only and should be independently verified. See our Data Sources Policy for more information.
Frequently Asked Questions
Common questions about this property
The current listed common charges are $9,352 per month. Confirm the exact amount with Milton Coste before making an offer.
The current listed annual property tax is $77,244, or roughly $6,437 per month. Verify the current assessment with your attorney before closing.
This property has 3 bedrooms and 3 full bathrooms and 1 half bathroom.
The listed interior living area is 3,860 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: Pets Allowed. Contact Milton Coste for weight limits or breed restrictions.
At the current list price of $11,650,000 for 3,860 sq ft, the asking price per square foot is approximately $3,018. 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 [email protected]. 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 Compass - Scott W Hustis
Listing Contact: (646) 679-4075
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.
How working with a buyer's agent works: I work for you, not the seller. Before I show you anything, New York brokerage rules ask us to put that in writing: an agreement and a disclosure that say I work for you and negotiate on your behalf. The agreement is non-exclusive: you can work with other agents, it runs for a short fixed term we agree on, and you can end it with a note. You may attend open houses independently without an agreement. Read how it works
RLS Data display by Keller Williams NYC. Data last updated on 10/18/2026 at 5:48 AM UTC
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Sale history, taxes, violations and comps for this unit
Before you bid
Pre-Offer Report: 551 W 21st Street #17B
At $11,650,000, the listing leaves out what decides the offer: the recorded sale history, the tax and abatement picture, open building violations and permits, and the closed sales that set the price. Milton prepares the report from public records. No obligation.
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What happens next
- 1Milton emails you today.
- 2A short call about what you want and when.
- 3The agreement arrives electronically after the call. Then showings.
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You're contacting Milton Coste, a buyer's agent. Before any private showing, New York brokerage rules require a short non-exclusive agreement. Milton walks you through it before you sign anything. Broker commissions are not set by law and are fully negotiable. How working together works.
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Quick Facts
Monthly Costs Estimate
$2,330,000
Source: Freddie Mac PMMS
Est. Monthly Payment
$0
Estimates only. Consult a lender for exact figures.
Mansion tax applies at this price point
New York State charges the buyer a mansion tax on residential purchases at $1,000,000 or more. At this asking price the tier is $10M to $14,999,999 at 3.25%, applied to the whole purchase price. It is due in cash at closing and cannot be financed.
Estimated mansion tax at asking
$378,625
Estimate based on the asking price. Confirm your own obligation with your real estate attorney.
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