For Sale · Listing by Compass
16 W 21st Street #8A
Flatiron, Manhattan
$3,295,000
16 W 21st Street #8A
MLS® #RLS20102540
Listing by Compass
- 3
- Bedrooms
- 3
- Baths
- 2,736
- Sq. Ft.
- 2009
- Year Built
Quick Summary
Property Highlights
- Exposure: North,South facing
- Climate Control: Central Air
Property Details
Listing History
| Event | Date | Price | Change |
|---|---|---|---|
| Listed | Jul 9, 2026 | $3,295,000 | - |
| Currently | Aug 8, 2026 | $3,295,000 | - |
Description
Near the top of a centrally located full-service Flatiron condominium lies this custom renovated stunning three-bedroom-plus-office duplex with private outdoor space, beautiful all-day light, and modern amenities. The loft encompasses the entire eighth and ninth floors of 16W21, and is accessed via key-locked elevator on either floor. The home has been renovated twice by the current owners in partnership with renowned architect West Chin, resulting in one of the most turnkey and livable layouts available in the downtown marketplace today. The lower level houses the chef’s open kitchen, dining area, and two guest bedrooms, as well as two full bathrooms. The kitchen was gut renovated in 2020, work that included the addition of Japanese marble countertops and backsplash, custom millwork, and the expansion of the pantry to a full-depth storage space. Appliances include Miele and Sub Zero, including a wine refrigerator. The kitchen spills open to the huge dining area, fit for entertainment. Down the hallway to the southern end of the apartment, there is custom cabinetry and wood paneling by West Chin throughout, creating an incredible amount of storage throughout. The south-facing bedrooms are large in size, one has an en-suite bath, and they each have custom-built closets. The upper level, accessed either up a glass-walled staircase or the key-locked elevator, houses the full-width living room, the primary suite, a home office, and a balcony. The living room has a custom built-in for storage and style, leading into another hallway with custom storage all the way down. The current owners removed the upstairs powder room (easily put back in place) to create a handy home office, the perfect amenity for the modern era. The crown jewel of this stunner is the primary suite, again top-to-bottom outfitted by the current owners. The primary bath has been redone, has a double vanity, stall shower, and tons of storage. The primary suite now has two enviable, large, walk-in dressing rooms, both custom outfitted. The south-facing balcony extends the width of the apartment and has enough space for chairs and a table to enjoy the fresh air. The entire home has the touches of a modern renovation: custom automatic shades throughout, Sonos sound system hardwired throughout, and recessed lighting installed top to bottom. There is multi-zoned central air and a full-sized washer/dryer. 16W21 is a boutique LEED Silver boutique condominium situated in the heart of the Flatiron District. There is a part-time doorman/concierge (on site daily), keyed elevator, package room and refrigerated storage, spa and fitness center, and common roof deck. Out your front door is immediate access to world-class parks, shopping, dining, culture and nightlife.
Features & Amenities
Interior Features
Exterior 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
105
Median Asking Price
$2.25M
Median $/Sqft
$1,845
Avg Days on Market
N/A
New This Week
3
Price Reduced
31%
Sold (30 Days)
6
Median Sale Price
$2.48M
Live data from RLS at REBNY • Updated 8/8/26, 4:44 PM EST
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16 W 21st Street #8A, 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 $5,316.86 per month. Confirm the exact amount with Milton Coste before making an offer.
The current listed annual property tax is $64,523.64, or roughly $5,377 per month. Verify the current assessment with your attorney before closing.
This property has 3 bedrooms and 3 full bathrooms.
The listed interior living area is 2,736 square feet. Verify dimensions independently during due diligence.
According to MLS records, the building was constructed in 2009, making it approximately 17 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. Contact Milton Coste for weight limits or breed restrictions.
At the current list price of $3,295,000 for 2,736 sq ft, the asking price per square foot is approximately $1,204. 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 [email protected]. 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 - Ian Slater
Listing Contact: (646) 645-8192
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 8/8/2026 at 8:44 PM UTC
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Quick Facts
Monthly Costs Estimate
$659,000
Source: Freddie Mac PMMS
Est. Monthly Payment
$0
Estimates only. Consult a lender for exact figures.
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