4 W 21st Street #14A
MLS® #RLS20081101
Listing by Compass
2
Bedrooms
2
Baths
1,225
Sq. Ft.
2006
Year Built
Quick Summary
Property Highlights
- Exposure: South facing
- Climate Control: Central Air
- Parking: Private garage
Property Details
Listing History
| Event | Date | Price | Change |
|---|---|---|---|
| Listed | Apr 2, 2026 | $1,200,000 | - |
| Currently | May 18, 2026 | $1,200,000 | - |
Description
More Elevated / Luxury-Forward Version Sophisticated Flatiron loft living begins at 4 West 21st Street. This sun-filled two-bedroom, two-bath residence blends downtown character with refined modern finishes in one of Manhattan’s most sought-after full-service buildings. With 9.5-foot ceilings, floor-to-ceiling south-facing windows, and an expansive open layout, the home offers a seamless balance of volume, light, and style. The oversized living and dining space flows into a beautifully appointed chef’s kitchen with Poliform Varenna cabinetry, Pied Auberge stone counters and backsplash, Sub-Zero and Miele appliances, and a large island designed for both entertaining and everyday use. The tranquil primary suite features an enormous walk-in California Closet and a spa-caliber bath with radiant heated floors, a deep soaking tub, frameless glass shower, and double vanity. A spacious second bedroom offers excellent flexibility for guests, a nursery, or a polished work-from-home setup. Additional features include dark oak floors, generous storage, a vented washer/dryer, and a second full bath. Designed by acclaimed architect Hugh Hardy, 4 West 21st Street is a coveted Flatiron condop offering a 24-hour doorman, fitness center, parking garage, landscaped courtyard, children’s play area, and live-in superintendent. With no board approval required and policies that allow pets, unlimited subletting, pieds-à-terre, co-purchasing, gifting, and parents buying for children, this home offers a rare level of flexibility in a prime Manhattan location near Madison Square Park, Union Square, Chelsea, and NoMad. Capital assessment: $894.31/month through June 2027. CONTACT US TODAY FOR A PRIVATE TOUR.
Features & Amenities
Interior Features
Building Amenities
Appliances
Building Information
Financial Details
About Flatiron
View All Flatiron ListingsThe Flatiron District is a busy intersection of history, technology, and luxury living. Named after the iconic Flatiron Building, the neighborhood is centered around Madison Square Park and is a hub for the city's 'Silicon Alley.' The real estate market is famous for its grand cast-iron loft buildings with high ceilings and expansive floor plans, alongside ultra-luxury glass towers that offer modern amenities and central Manhattan convenience.
Flatiron Live Market Data
View NeighborhoodActive Listings
138
Median Asking Price
$2.38M
Median $/Sqft
$1,791
Avg Days on Market
N/A
New This Week
11
Price Reduced
32%
Sold (30 Days)
4
Median Sale Price
$1.55M
Live data from RLS at REBNY • Updated 5/18/26, 10:56 AM EST
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Location
4 W 21st Street #14A, Flatiron, New York County
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.
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 $5,689 per month. Confirm the exact amount with the listing broker before making an offer.
The current listed annual property tax is $0, or roughly $0 per month. Verify the current assessment with your attorney before closing.
This property has 2 bedrooms and 2 full bathrooms.
The listed interior living area is 1,225 square feet. Verify dimensions independently during due diligence.
According to MLS records, the building was constructed in 2006, making it approximately 20 years old.
This listing is a condop, a hybrid structure where the building is legally a co-op but individual units are sold with greater flexibility, often including subletting rights similar to condos.
Pets are permitted at this property. Contact the listing broker for weight limits or breed restrictions.
At the current list price of $1,200,000 for 1,225 sq ft, the asking price per square foot is approximately $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 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 Compass - ELKIN J SERNA
Listing Contact: (917) 578-9551
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 5/18/2026 at 2:56 PM UTC