4 West 21st Street, Unit 12C

4W21
Flatiron

$1,175,000
Price
1
Bed
1,073 Sq. Ft.
$1,095 / Sq. Ft.
1,073
Sq. Ft.
$1,095
per Sq. Ft.
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Listed By CompassNew Construction
Listed By CompassNew Construction

Description

Introducing an exceptional opportunity to own a refined modern residence in the heart of the Flatiron District. Residence 12C at 4 West 21st Street offers 1,073 square feet of thoughtfully designed living space, perfectly balancing loft-like openness with contemporary comfort.
Upon entry, the home immediately impresses with rich dark hardwood floors, central air conditioning, and walls of floor-to-ceiling windows that flood the residence with natural light throughout the day. The expansive layout...Introducing an exceptional opportunity to own a refined modern residence in the heart of the Flatiron District. Residence 12C at 4 West 21st Street offers 1,073 square feet of thoughtfully designed living space, perfectly balancing loft-like openness with contemporary comfort.

Upon entry, the home immediately impresses with rich dark hardwood floors, central air conditioning, and walls of floor-to-ceiling windows that flood the residence with natural light throughout the day. The expansive layout allows for effortless entertaining while maintaining a sense of intimacy and flow.

At the heart of the home is a chef’s kitchen, beautifully appointed with Sub-Zero refrigeration, a Miele gas range and dishwasher, a generously sized Kohler sink with garbage disposal, Poliform Varenna high-gloss lacquer cabinetry, and Pied Auberge stone countertops, creating a sleek and highly functional culinary space.

The open-concept kitchen seamlessly connects to the dining and living areas, while the oversized primary bedroom is tucked away for privacy and features three spacious closets and a luxurious, windowed five-fixture en-suite bathroom with a Kohler soaking tub and separate glass-enclosed shower. A second full bathroom, ideal for guests, adds flexibility and convenience. An in-unit washer/dryer completes the home.

Designed by Hugh Hardy with interiors by Anthony Todd, 4 West 21st Street is a full-service condop offering a 24-hour concierge, live-in superintendent, fitness center, landscaped outdoor spaces, and on-site parking garage.

Perfectly situated just moments from Fifth Avenue, Madison Square Park, Eataly, Trader Joe’s, and major transportation including the 1, 6, N, R, F, and M trains, this residence delivers sophisticated city living in one of Manhattan’s most coveted neighborhoods.

Monthly condop maintenance is $5,116, broken down as follows:

Maintenance: $1,872
Taxes: $2,543
Ground lease: $701

There is an assessment in place in the amount of $804.48 per month ending on June 1,2027.

Amenities

  • Doorman
  • Full-Time Doorman
  • Concierge
  • Deck
  • Common Roof Deck
  • Common Outdoor Space
  • Gym
  • Health Club
LISTING UPDATED: 05/05/2026 05:27 PM

Property Details for 4 West 21st Street, Unit 12C

StatusActive
Days on Market49
Taxes$2,543 / month
Maintenance$2,573 / month
Min. Down Pymt20%
Total Rooms4.0
Property TypeCondop
MLS TypeCo-op
Year Built2006
CountyNew York County
Buyer's Agent Compensation3%

Building

4W21

56 Units17 StoriesBuilt in 2006
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Location

Listing Courtesy of: .

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Building Information for 4 West 21st Street, Unit 12C

Building/Complex4W21Floor12Stories17Residences56Pet PolicyAllowedPet Policy Details3Year Built2006Building AgePost-war

Payment Calculator

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$11,033 per month

30 year fixed, 6.46% Interest

Principal and Interest

$5,917

Property Taxes

$2,543

Maintenance/Common Charges

$2,573

The Payment Calculator is for illustrative purposes only.

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Property History for 4 West 21st Street, Unit 12C

DateEvent & SourcePriceAppreciationLink
Apr 23, 2026

Price Change

Manual

$1,175,000——
Mar 24, 2026

Listed (Active)

Manual

$1,250,000——
Jun 15, 2012

Sold

RealPlus #17d0e7f4b1ef31663d185d17dc9d39e812eea5c4

$1,315,000——
DateEvent & SourcePrice
04/23/2026

Price Change

Manual

$1,175,000
03/24/2026

Listed (Active)

Manual

$1,250,000
06/15/2012

Sold

RealPlus #17d0e7f4b1ef31663d185d17dc9d39e812eea5c4

$1,315,000

For completeness, Compass often displays two records for one sale: the MLS record and the public record.

Public Records for 4 West 21st Street, Unit 12C

Taxable ValueLand-Additions-Total-
Home Facts
APN1008220045

Schools near 4 West 21st Street, Unit 12C

This home is within New York City Geographic District # 2.
Rating
School
Type
Grades
Distance
PS 11 Sarah J Garnett Elementary School (The)
Public - PK to 5
Nyc Lab Ms For Collaborative Studies
Public - 6 to 8
Middle 297
Public - 6 to 8
Lower Manhattan Community Middle School
Public - 6 to 8
Rating
School
Distance
PS 11 Sarah J Garnett Elementary School (The)
PublicPK to 5

Nyc Lab Ms For Collaborative Studies
Public6 to 8

Middle 297
Public6 to 8

Lower Manhattan Community Middle School
Public6 to 8

School ratings and boundaries are provided by GreatSchools.org and Pitney Bowes. This information should only be used as a reference. Proximity or boundaries shown here are not a guarantee of enrollment. Please reach out to schools directly to verify all information and enrollment eligibility.

Flatiron
Flatiron
A historic district with a modern finish. With its central location, Flatiron is great for those who want a little bit of everything. Bustling daytime transit dissipates into relaxed evening strolls as Flatiron bends to be energetic when you want it, and peaceful when you don’t.
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More information about 4 West 21st Street, Unit 12C, Flatiron

4 West 21st Street, Unit 12C is a condop for sale in Flatiron. This property was listed for sale on March 24, 2026 by Compass, it's currently listed at $1,175,000. It has been on the market for a total of 49 days and was last sold on June 15, 2012. This listing's school district is New York City Geographic District # 2. Nearby schools include PS 11 Sarah J Garnett Elementary School (The), Nyc Lab Ms For Collaborative Studies and Middle 297. 4 West 21st Street, Unit 12C is a 1-bed, 2-bath, 1,073 sqft condop built in 2006.

No guarantee, warranty or representation of any kind is made regarding the completeness or accuracy of descriptions or measurements (including square footage measurements and property condition), such should be independently verified, and Compass, Inc., its subsidiaries, affiliates and their agents and associated third parties expressly disclaims any liability in connection therewith. Photos may be virtually staged or digitally enhanced and may not reflect actual property conditions. Offers of compensation are subject to change at the discretion of the seller. No financial or legal advice provided. Equal Housing Opportunity.

This 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. The source of the displayed data is either the property owner or public record provided by non-governmental third parties. It is believed to be reliable but not guaranteed. This information is provided exclusively for consumers’ personal, non-commercial use. The data relating to real estate for sale on this website comes in part from the IDX Program of OneKey® MLS. Information Copyright 2026, OneKey® MLS. All data is deemed reliable but is not guaranteed accurate by Compass, Inc., its subsidiaries, affiliates and their agents and associated third parties. See Terms of Service for additional restrictions. Compass · Tel: 212-913-9058 · New York, NY 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 information is not guaranteed, should be independently verified and may not reflect all real estate activity in the market. Offers of compensation set forth here are for other RLSParticipants only and may not reflect other agreements between a consumer and their broker.©2026 The Real Estate Board of New York, Inc., All rights reserved.