Milton Coste

Licensed Real Estate Associate Broker

(917) 416-7433
551 W 21st Street #17A

For Sale · Listing by Compass

551 W 21st Street #17A

Chelsea, Manhattan

$17,000,000

Interested in this property?
Active For Sale Condo

$17,000,000

$3,980 per sq ft

551 W 21st Street #17A

Chelsea, Manhattan

MLS® #RLS20115545

RLS at REBNY

Listing by Compass

4
Bedrooms
4.5
Baths
4,271
Sq. Ft.
2015
Year Built

Quick Summary

Bedrooms 4
Bathrooms 5 full, 1 half
Living Area 4,271 sq ft
Year Built 2015
Ownership Condo
HOA/Common Charges $10,311/mo
Property Taxes $85,164/yr
Parking Garage
Neighborhood Chelsea
Floor 17 of 19

Property Highlights

  • Views: City, River
  • Exposure: East,North,South,West facing
  • Climate Control: Central Air

Property Details

Type Condo
Ownership Condominium
Total Rooms 9
Baths 4 Full, 1 Half
Floor 17 of 19
View City, River
Exposure East,North,South,West
Heating Central
Cooling Central Air
Pets Yes, CatsOk, DogsOk
Year Built 2015
Living Area 4,271 sq ft
Parking Garage Available
Parking Features Garage
Structure Type HighRise
Flooring Hardwood
Furnished Unfurnished
Parcel # 0693-1140
Block/Lot 00693/1140

Listing History

Event Date Price Change
Listed Sep 17, 2026 $17,000,000 -
Currently Sep 17, 2026 $17,000,000 -

Description

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.

Features & Amenities

Interior Features

Chandelier Double Vanity Entrance Foyer Elevator High Ceilings His And Hers Closets Kitchen Island Recessed Lighting Soaking Tub Sauna Walk In Closets Common On Floor Common Area Laundry Room Flooring: Hardwood

Exterior Features

Private Entrance Private Outdoor Space Under60 Sqft

Building Amenities

Billiard Room Bike Storage Common Lounge Common Playroom Concierge Elevators Fitness Center Game Room Golf Simulator Room Sauna Sauna

Appliances

Gas Cooktop Range Hood Stainless Steel Appliances

Building Information

Building Data View Compliance & Permits
Total Units 44
Stories 19
Structure HighRise

Financial Details

Common Charges $10,311/mo
RE Taxes $85,164/yr ($7,097/mo)

Chelsea 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 Neighborhood

Active Listings

265

Median Asking Price

$2.31M

Median $/Sqft

$2,012

Avg Days on Market

N/A

New This Week

51

Price Reduced

30%

Sold (30 Days)

46

Median Sale Price

$1.77M

Live data from RLS at REBNY • Updated 9/17/26, 3:44 PM EST

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Location

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551 W 21st Street #17A, Chelsea, New York County

Floor Plans

Floor Plan 1

Building Information

Official NYC property records for this building

2013
Year Built
13 years old
20
Floors
44
Residential Units
C6-3
Zoning District
Condominiums

Tax & Assessment

Assessed Value: $30,460,953
Land Value: $5,477,402
Exemptions: $0

Note: Individual unit taxes may differ. Verify current tax bills with NYC DOF.

Lot Area: 17,388 SF
Building Area: 153,053 SF
Built FAR: 8.8
Allowed FAR: 7.52

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

Frequently Asked Questions

Common questions about this property

The current listed common charges are $10,311 per month. Confirm the exact amount with Milton Coste before making an offer.

The current listed annual property tax is $85,164, or roughly $7,097 per month. Verify the current assessment with your attorney before closing.

This property has 4 bedrooms and 4 full bathrooms and 1 half bathroom.

The listed interior living area is 4,271 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 $17,000,000 for 4,271 sq ft, the asking price per square foot is approximately $3,980. 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 milton@miltoncoste.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) 416-7433
MLS® ID: RLS20115545
First Listed: 9/16/2026
On Market: 9/17/2026
Contract Date: 9/16/2026

Listing 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.

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 at REBNY

RLS Data display by Keller Williams NYC. Data last updated on 9/17/2026 at 7:44 PM UTC

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Chelsea Market Update

46 sales last 30 days · $2.31M median · 5.8 months supply

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Quick Facts

Status Active Type Condo Neighborhood Chelsea Borough Manhattan
County New York
Floor 17 of 19
Year Built 2015
First Listed 9/16/2026
Parking Garage
Living Area 4,271 sqft
Common Charges $10,311/mo
Annual Tax $85,164

Monthly Costs Estimate

Down Payment 20%

$3,400,000

Interest Rate Loading...

Source: Freddie Mac PMMS

Loan Term 30 years

Est. Monthly Payment

$0

Principal & Interest $0
PMI (under 20% down) $0
Common Charges $10,311
Est. Taxes $7,097
Total Monthly $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 $15M to $19,999,999 at 3.50%, applied to the whole purchase price. It is due in cash at closing and cannot be financed.

Estimated mansion tax at asking

$595,000

Run the numbers on a different offer price

Estimate based on the asking price. Confirm your own obligation with your real estate attorney.

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