SOLD FOR $1,050,000
· Closed November 2, 2020
4 W 21st Street #17-B
MLS® #RLS10343133
Listing by Compass
1
Bedroom
1
Bath
790
Sq. Ft.
2006
Year Built
Quick Summary
Property Highlights
- Views: City
- Exposure: North,South,West facing
- Climate Control: Central Air
Property Details
Listing History
| Event | Date | Price | Change |
|---|---|---|---|
| Listed | Oct 26, 2005 | $1,050,000 | - |
| Price Reduced | Mar 7, 2018 | $1,150,000 | +9.5% |
Description
Modern, elegant and spacious, this high floor airy one bedroom loft is the epitome of downtown luxury with dreamlike city views. Housed in a contemporary building designed by preeminent architect Hugh Hardy, 4 West 21st Street offers residents unparalleled luxury and style in its every amenity a 24 hour concierge, a fully equipped gym, a 2500 square foot landscaped common outdoor space, and onsite parking in the building. Enter Residence 17B through an over-sized solid oak door into a dramatic foyer perfect for displaying your art collection. This gracefully leads you down a wide hallway into the covetable chef's kitchen outfitted with top-of-the-line fixtures including sleek Poliform Varenna white gloss cabinets, solid Pied Auberge stone countertops, a Sub-Zero refrigerator, Miele gas range and dishwasher, and an extra-large Kohler sink with disposal. The sun-flooded living room has floor-to-ceiling windows highlighting the picturesque northern and western views. 17B also features custom closets throughout the apartment, a full-size vented washer/dryer, striking dark-stained oak floors, central air-conditioning, and a spa-like bathroom with Glastos honed floors and walls, and a frameless glass shower. Best of all, you can sublet freely in this condop. 90% financing is allowed, pets are welcome, and pieds-a-terre, co-purchasing, and subleasing are permitted. Contact us for a private viewing.
Features & Amenities
Interior Features
Exterior Features
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
139
Median Asking Price
$2.42M
Median $/Sqft
$1,788
Avg Days on Market
N/A
New This Week
12
Price Reduced
32%
Sold (30 Days)
4
Median Sale Price
$1.55M
Live data from RLS at REBNY • Updated 5/18/26, 7:28 PM EST
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Location
4 W 21st Street #17-B, Flatiron, New York County • Near Fifth Avenue/Avenue of the Americas
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 $3,147 per month. Confirm the exact amount with the listing broker before making an offer.
This property has 1 bedroom and 1 full bathroom.
The listed interior living area is 790 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 $1,050,000 for 790 sq ft, the asking price per square foot is approximately $1,329. 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 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 11:28 PM UTC