Milton Coste

Licensed Real Estate Associate Broker

(917) 416-7433

SOLD FOR $8,000,000

· Closed July 8, 2025

551 W 21ST Street #9B
Closed For Sale Condo

$8,000,000

$2,073 per sq ft

551 W 21ST Street #9B

Chelsea, Manhattan

551 W 21

MLS® #RLS11007720

RLS at REBNY

Listing by Corcoran Group

3

Bedrooms

3.5

Baths

3,860

Sq. Ft.

2015

Year Built

Quick Summary

Bedrooms 3
Bathrooms 4 full, 1 half
Living Area 3,860 sq ft
Year Built 2015
Ownership Condo
HOA/Common Charges $8,529/mo
Property Taxes Contact for details
Parking Garage
Neighborhood Chelsea
Floor 9 of 19

Property Highlights

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

Property Details

Type Condo
Ownership Condominium
Total Rooms 7
Baths 3 Full, 1 Half
Floor 9 of 19
View City, River
Exposure East,North,South
Cooling Central Air
Pets Yes
Year Built 2015
Living Area 3,860 sq ft
Parking Garage Available
Structure Type HighRise
Basement Other
Parcel # 0693-1127
Block/Lot 00693/1127

Listing History

Event Date Price Change
Listed Sep 9, 2024 $9,995,000 -
Price Reduced Jul 8, 2025 $9,495,000 -5.0%
Currently Apr 26, 2026 $8,000,000 -15.7%

Description

BEST VALUE "B" LINE IN BUILDING - NEW PRICE $9.5M

Modern architecture with a prewar layout in this prime, West Chelsea residence with parking! Brilliantly designed by Pritzker prize-winning Foster + Partners, Residence 9B is a three-bedroom (convertible 4), three-and-a-half bathroom home measuring 3,860 square feet.

With direct elevator access through a private vestibule, enter this stately residence through a magnificent center galley, with great space for art, elegantly connecting the rooms. The south-facing grand living room offers space for entertaining and leisure, accompanied by an adjacent library.

Throughout the home, north, south, and east exposures fill this apartment with natural light and offer views of the Hudson River, downtown, and midtown Manhattan. The kitchen is outfitted with polished Blanco Macael marble countertops with a backsplash, Dornbracht fixtures, a fully integrated Sub-Zero fridge, two Miele convection ovens, Gaggenau cooktop, two Miele dishwashers, and a Sub-Zero cooling drawer. Additionally, there are two warming drawers, a microwave, and a coffee system by Miele. Directly adjacent to the kitchen is a large formal dining area. A stunning, corner primary bedroom features a fully finished, large walk-through dressing area with extensive custom millwork throughout.

The luxurious primary bathroom oasis is complete with a freestanding tub beneath a window with river views, radiant-heated Luna Black granite flooring, and a custom Corian vanity with integrated lighting. It also includes a separate enclosed shower and water closet with custom-designed floor-to-ceiling translucent glass doors. Completing the home, there are two additional bedrooms both with en-suite baths consisting of Travertino Striato stone floors, Quarella stone wall tiles, and elegant Dornbracht fixtures.

The property features French-inspired oak herringbone wood floors, naturally stained oak cabinetry, and custom millwork throughout. With gracious proportions, this home features 11-foot ceilings, 9-foot doorways, and expansive picture windows with luminous metal surround that offer a deep facade for perimeter seating. There is a separate service entrance and laundry room. 551 West 21st Street is an architectural masterpiece and one destined to become a classic over time.

With only 43 residences, the building is discreet and offers exclusivity in the midst of a bustling West Chelsea: unquestionably Manhattan's most vibrant and creative neighborhood.

Building Features:
-Gated drive court offering the utmost convenience and parking.
-Full-time doorman and concierge.
-Porter and valet service.
-34" tall, double-height lobby with prismatic glass wall.
-Dedicated service entry separate from the residential lobby.
-State-of-the-art fitness center and yoga room.
-Spa with steam/sauna and treatment room.
-Residents" lounge with fireplace and catering kitchen.
-Children's playroom.
-Bicycle room.

Features & Amenities

Interior Features

Separate Formal Dining Room Building Other In Unit

Exterior Features

Private Outdoor Space Under60 Sqft

Building Amenities

Common Playroom Concierge Game Room Kitchen Facilities Sauna Spa Hot Tub Steam Room Sauna

Appliances

Washer Dryer Allowed

Building Information

Building 551 W 21
Building Data View Compliance & Permits
Total Units 44
Stories 19
Structure HighRise

Financial Details

Common Charges $8,529/mo
RE Taxes Contact for details
Original Price $9,995,000
Sale Price $8,000,000
Previous Price $9,495,000

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

308

Median Asking Price

$1.84M

Median $/Sqft

$1,746

Avg Days on Market

N/A

New This Week

22

Price Reduced

31%

Sold (30 Days)

34

Median Sale Price

$2.02M

Live data from RLS at REBNY • Updated 4/26/26, 6:31 PM EST

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Location

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551 W 21ST Street #9B, Chelsea, New York County

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 $8,529 per month. Confirm the exact amount with the listing broker before making an offer.

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,Building Pets Allowed Comments:Pets Allowed. Contact the listing broker for weight limits or breed restrictions.

At the current list price of $8,000,000 for 3,860 sq ft, the asking price per square foot is approximately $2,073. 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) 416-7433
MLS® ID: RLS11007720
First Listed: 9/9/2024
On Market: 9/9/2024
Price Changed: 7/8/2025
Closed: 7/8/2025
Contract Date: 9/9/2024

Listing Courtesy of Corcoran Group - Steven W Gold

Listing Contact: (203) 249-7532

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 4/26/2026 at 10:31 PM UTC

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