15 UNION Square W #8A
MLS® #RLS10091078
Listing by Brown Harris Stevens Residential Sales LLC
2
Bedrooms
3
Baths
1,963
Sq. Ft.
1870
Year Built
Quick Summary
Property Highlights
- Exposure: East,West facing
- Style: Prewar architecture
- Character: Pre-war building (1870)
Property Details
Description
15 USW is the 21st century artistic metamorphosis of Tiffany & Company's 19th century headquarters overlooking historic Union Square Park. The dramatic original cast-iron arched windows are now set behind a new facade of black zinc and glass. The new addition has created six floors of unique penthouses with oversized terraces and gas fireplaces. This boutique condominium features 36 residences and amenities spaces custom designed by renowned interior designer Vincent Wolf with an exclusive line of kitchen and bathroom fixtures manufactured by Sherle Wagner. 15 USW offers luxurious five star hotel-worthy amenities including 24 hour doorman, onsite concierge services by Luxury Attaché, valet parking, a beautiful designed spa including a 50' lap pool with oversized whirlpool, and a state-of-the-art fitness center with yoga studio.
Projected real estate taxes are effective as of July 1, 2010. The complete terms are in an offering plan available from sponsor. File No. CD 07-0112. For complete information visit: www.15USW.com
Building Information
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
119
Median Asking Price
$2.29M
Median $/Sqft
$1,684
Avg Days on Market
N/A
New This Week
5
Price Reduced
30%
Sold (30 Days)
10
Median Sale Price
$2.80M
Live data from RLS at REBNY • Updated 3/27/26, 4:11 AM EST
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Location
15 UNION Square W #8A, Flatiron, New York County
Floor Plans
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 Brown Harris Stevens Residential Sales LLC - Shlomi Reuveni
Listing Contact: (212) 906-9234
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.
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RLS Data display by Keller Williams NYC. Data last updated on 3/27/2026 at 8:11 AM UTC