15 UNION Square W #6B
MLS® #RLS10033247
Listing by Sothebys International Realty
3
Bedrooms
4
Baths
N/A
Sq. Ft.
2010
Year Built
Quick Summary
Property Highlights
- Exposure: East,North facing
Property Details
Description
Exceptional and dramatic sun-filled corner apartment boasting double height 16-Ft floor-to-ceiling windows and stunning views directly on the verdant, leafy and iconic Union Square Park. Designed as Tiffany & Company's principal headquarters, the building was recently reinvented for luxury residential use and enrobed with a glass facade featuring massive window panes that incorporate the original cast iron architecture. Truly unique, the apartment features wide plank oak floors, a Crestron system that controls the lighting, solar and blackout shades for each window, and a four zone HVAC system. The exceptional finishes and gracious spaces are a superb example of designer Vincente Wolf's talents. Beyond the impressive marble Gallery with coved ceiling, there is a stunning 31'x22' Living/Dining Room with a coveted corner exposure and soaring 16' arched windows overlooking Union Square Park. The open Kitchen with an oversized white marble island is equipped with best-in-class appliances, such as a vented Viking range and oven, a Sub-Zero refrigerator and wine refrigerator, and a Miele dishwasher and built-in coffee system. Adjacent there is a Library/Third Bedroom with ensuite bath and a built-in Office console. The lovely 17'x22' Master Bedroom has a huge custom fitted Dressing Room and a large ensuite marble Bathroom. This luxurious bathroom with a double vanity includes a cast-iron freestanding soaking tub and shower. A Second Bedroom has ample closet space and an ensuite Bathroom. A handsome and well located Powder Room and Laundry Room complete the layout. Residents of this boutique condominium enjoy five star hotel-like amenities including a 24 hour doorman, an onsite concierge, a beautifully designed spa with a 50-Ft lap pool, a whirlpool, a sauna and a state-of-the-art fitness center with yoga studio.
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
121
Median Asking Price
$2.29M
Median $/Sqft
$1,678
Avg Days on Market
N/A
New This Week
7
Price Reduced
31%
Sold (30 Days)
11
Median Sale Price
$2.80M
Live data from RLS at REBNY • Updated 3/26/26, 12:40 PM EST
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Location
15 UNION Square W #6B, Flatiron, New York County
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Listing Courtesy of Sothebys International Realty - Serena Boardman
Listing Contact: (212) 606-7611
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RLS Data display by Keller Williams NYC. Data last updated on 3/26/2026 at 4:40 PM UTC