15 Union Square W #16
MLS® #RLS20051861
Listing by Triumph Property Group Ltd
3
Bedrooms
4.5
Baths
2,849
Sq. Ft.
1870
Year Built
Quick Summary
Property Highlights
- Exposure: East,North facing
- Style: Prewar architecture
- Climate Control: Central Air
Property Details
Description
15 Union Square West — Residence 16
A rare opportunity to own a dramatic corner three-bedroom, three-and-a-half-bath residence in the iconic 15 Union Square West, once home to Tiffany & Co.’s headquarters.
With 16-foot ceilings and soaring arched windows overlooking Union Square Park, this home offers scale, light, and drama that are simply unmatched. The expansive living and dining space flows into a custom chef’s kitchen with professional-grade appliances, marble island, and bespoke finishes—perfect for both entertaining and everyday living. Each bedroom features an en-suite bath with refined stone and wood finishes, while a powder room and full laundry room add convenience.
* Large Storage Transfers with Unit
15 Union Square West combines historic cast-iron architecture with a modern zinc-and-glass facade, offering full-service luxury and premier amenities, including a 50-foot swimming pool, cold plunge, whirlpool, spa with massage rooms and saunas, fitness center, yoga studio, residents’ lounge, and 24-hour doorman/concierge.
Situated directly on Union Square Park, this boutique condominium places you at the center of downtown’s most vibrant neighborhoods. The Union Square Greenmarket, Whole Foods, and some of Manhattan’s best restaurants—including ABC Kitchen, Gramercy Tavern, and Breads Bakery—are at your doorstep. A true transportation hub, the N, Q, R, W, 4, 5, 6, and L trains are just steps away, with the West Village, Flatiron, Gramercy, NoMad, and Washington Square Park all within walking distance.
This rare residence offers an unparalleled chance to own a home of this magnitude in Union Square’s most distinguished full-service condominium
* Pictures are virtually staged
*1% Flip Tax
Features & Amenities
Interior Features
Exterior Features
Building Amenities
Appliances
Building Information
Financial Details
About Flatiron
View All Flatiron ListingsThe Flatiron District is a vibrant 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
95
Median Asking Price
$2.75M
Median $/Sqft
$1,787
Avg Days on Market
N/A
New This Week
2
Price Reduced
31%
Sold (30 Days)
7
Median Sale Price
$2.95M
Live data from RLS at REBNY • Updated 2/15/26, 9:10 PM EST
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Location
15 Union Square W #16, Flatiron, New York County • Near East 14th Street/East 15th Street
Listing Data
RLS® at REBNY (Real Estate Board of New York) via Trestle API. Updated in real-time.
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.
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Listing Courtesy of Triumph Property Group Ltd - Shachar Dinour
Listing Contact: (646) 693-1212
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.
RLS Data display by Keller Williams NYC. Data last updated on 2/16/2026 at 2:10 AM UTC