For Sale · Listing by Compass
4 W 21st Street #14A
Flatiron, Manhattan
$1,200,000
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 | Jul 31, 2026 | $1,200,000 | - |
Description
Welcome to 4 West 21st Street, a beautifully designed two-bedroom, two-bath loft condop in the heart of Flatiron, where sophisticated design, full-service amenities, and exceptional flexibility come together in one of Manhattan’s most coveted neighborhoods. Bathed in southern light through floor-to-ceiling windows, this elegant residence offers the scale and warmth loft buyers crave, with 9.5-foot ceilings, dark oak hardwood floors, and an expansive open layout that is both stylish and functional. The spacious living and dining area is ideal for everyday living, entertaining, or displaying a curated art collection. At the center of the home is a sleek open chef’s kitchen featuring Poliform Varenna white gloss cabinetry, solid Pied Auberge stone countertops and backsplash, a Sub-Zero refrigerator, Miele gas range and dishwasher, and an oversized island with an extra-large Kohler sink and garbage disposal. The primary suite is a true retreat, complete with a massive walk-in California Closet and a spa-like en-suite bathroom appointed with honed Glastos stone floors and walls, a Caesarstone double vanity, frameless glass shower, deep soaking tub, and radiant heated floors. The generously sized second bedroom easily accommodates a queen-size bed and also works beautifully as a home office, guest room, or nursery. Additional highlights include a full second bathroom, abundant closet space, and a vented washer/dryer. Designed in 2006 by renowned architect Hugh Hardy, 4 West 21st Street offers the rare combination of prewar loft character and modern condominium-style living. Residents enjoy a 24-hour doorman, fitness center, parking garage, 2,500-square-foot landscaped courtyard with children’s play area, and a highly regarded live-in superintendent. This highly desirable Flatiron condop offers remarkable ownership flexibility with no board approval required and permits pets, unlimited subletting, pieds-à-terre, co-purchasing, gifting, and parents buying for children. Ideally positioned near Madison Square Park, world-class dining, shopping, transportation, and the energy of Flatiron, NoMad, Chelsea, and Union Square, this is a rare opportunity to own a refined luxury loft in Flatiron Manhattan. There is an ongoing capital assessment of $894.31/month through June 2027. Contact us today to schedule your private showing.
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
115
Median Asking Price
$2.20M
Median $/Sqft
$1,761
Avg Days on Market
N/A
New This Week
3
Price Reduced
34%
Sold (30 Days)
1
Median Sale Price
$2.60M
Live data from RLS at REBNY • Updated 7/31/26, 2:16 PM EST
Browse More NYC Properties
In This Neighborhood
By Property Type
By Borough
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)
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 $5,689.28 per month. Confirm the exact amount with Milton Coste 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 Milton Coste 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 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) 416-7433Listing 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 7/31/2026 at 6:16 PM UTC
See it in person
Interested in this property?
Thank you!
Milton will contact you shortly.
Your info is secure and never shared.
New listings in this building
You're signed up!
You'll be notified when new listings appear in 4W21.
Quick Facts
Monthly Costs Estimate
$240,000
Source: Freddie Mac PMMS
Est. Monthly Payment
$0
Estimates only. Consult a lender for exact figures.
Back to Search
Find more properties