SOLD FOR $5,800,000
· Closed August 9, 2020
15 UNION Square W #3B
MLS® #RLS10894366
Listing by Sotheby's International Realty, Inc.
3
Bedrooms
3.5
Baths
2,849
Sq. Ft.
2008
Year Built
Quick Summary
Property Highlights
- Views: City, Park Greenbelt
- Exposure: East,South facing
- Style: Prewar architecture
Property Details
Listing History
| Event | Date | Price | Change |
|---|---|---|---|
| Listed | Nov 27, 2019 | $7,250,000 | - |
| Currently | May 19, 2026 | $5,800,000 | -20.0% |
Description
Soaring 16' ceilings, captivating park views and architecturally significant attributes imbue this luxury 3-bedroom loft with breath-taking grandeur. A welcoming foyer opens into a coved ceiling gallery hallway that leads to the awe inspiring living, dining, and open chef's kitchen. Winter, Spring, Summer or Fall, the enchanting outdoor landscape offers a unique vantage point to the changing seasons. Drama pervades through-out this home with its palatial 3 bedrooms, all with en-suite baths and dramatic cubic volume. An art collector's paradise, the loft's walls provides for large-scale art installations. The high-end chef's kitchen boasts Sub-Zero refrigerator, wine cooler, Miele espresso machine, dishwasher and microwave, six-burner plus griddle Viking double oven with vented hood, Calcutta marble island with bar dining and the best of everything. The palatial corner living room boasts floor-to-ceiling windows with the original, circa 1868, arched Tiffany window frames exposed and deconstructed steel columns framed in a pin drop quiet glass curtain wall. The sumptuous grand master suite features 5-fixture bath with double vanity, claw foot bath, spa shower and separate WC, walk-in closet with voluminous storage. Other features include Crestron home system with automatic dual shades throughout, powder room with concealed laundry closet with full size Miele washer and dryer, storage galore, dark hardwood flooring and central air. 15 Union Square West's lobby is located at 22 East 15th Street at the crossroads of the Flatiron district and Greenwich Village. This amenity driven luxury condo offers LIV concierge services, 24 hour doorman, spa services, massage room, sauna, Tiffany blue pool, hot tub, fitness room, boxing room, yoga studio, game room and more. Steep in history, this former Tiffany headquarters has been reimagined as boutique residences blending past with present creating a significant timeless architectural masterpiece. A luxury lifestyle awaits
Features & Amenities
Interior 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
138
Median Asking Price
$2.38M
Median $/Sqft
$1,791
Avg Days on Market
N/A
New This Week
10
Price Reduced
31%
Sold (30 Days)
4
Median Sale Price
$1.55M
Live data from RLS at REBNY • Updated 5/18/26, 9:38 PM EST
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Location
15 UNION Square W #3B, 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 $6,133 per month. Confirm the exact amount with the listing broker before making an offer.
The current listed annual property tax is $43,104, or roughly $3,592 per month. Verify the current assessment with your attorney before closing.
This property has 3 bedrooms and 3 full bathrooms and 1 half bathroom.
The listed interior living area is 2,849 square feet. Verify dimensions independently during due diligence.
According to MLS records, the building was constructed in 2008, making it approximately 18 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 the listing broker for weight limits or breed restrictions.
At the current list price of $5,800,000 for 2,849 sq ft, the asking price per square foot is approximately $2,036. 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 Sotheby's International Realty, Inc. - Mara Flash Blum
Listing Contact: (212) 431-2447
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 5/19/2026 at 1:38 AM UTC