15 UNION Square W #5A
MLS® #RLS20093571
Listing by Corcoran Group
2
Bedrooms
2.5
Baths
2,200
Sq. Ft.
1870
Year Built
Quick Summary
Property Highlights
- Views: City Lights, City, Park Greenbelt
- Exposure: East,West facing
- Parking: Private garage
Property Details
Listing History
| Event | Date | Price | Change |
|---|---|---|---|
| Listed | May 27, 2026 | $6,500,000 | - |
| Currently | May 27, 2026 | $6,500,000 | - |
Description
Discover unparalleled luxury living in this stunning 2-bedroom, 2.5-bathroom loft , nestled in the vibrant heart of Union Square. With 15-foot ceilings and original grand cast-iron arched windows , this exquisite residence offers breathtaking views of Greenwich Village and Union Square Park, seamlessly blending historic charm with modern elegance .
Kitchen:
The expansive open layout is designed for both comfort and entertaining. A chef's dream kitchen features an elongated Calacatta marble island, custom lighting, and top of the line appliances , including a built-in Miele espresso machine, Sub-Zero fridge, Viking six-burner range, wine fridge, and garbage disposal - perfect for hosting unforgettable gatherings.
Primary Bedroom:
The primary suite is a serene retreat, featuring two oversized closets , charming Soho-style views, a spa-inspired en-suite bath with a luxurious wet room, clawfoot tub, shower, and dual sinks .
Second Bedroom:
The spacious second bedroom offers its own elegant en-suite bath , creating a private oasis for guests.
Additional highlights include a laundry room, stylish half bath, mahogany flooring, central HVAC , and an integrated Crestron system for lighting, shading and climate control .
Building:
Beyond your private sanctuary, five-star amenities await. Residents enjoy a state-of-the- art gym, full-length lap pool, hot tub, sauna, spa and treatment rooms . The concierge and dedicated staff ensure every need is met with white-glove service.
Located just west of Union Square on 15th Street, this coveted address offers easy access to the Union Square Greenmarket, Michelin-rated dining, fantastic shops, and major subway lines (N, Q, R, W, 4, 5, 6). Seamless luxury, privacy, and convenience in one of NYC's most vibrant neighborhoods.
A conversion of Tiffany & Company's 19th century headquarters, 15 Union Square West is a rare downtown gem.
We can't wait to show you this home!
Leased for 25,000/month until 04/2027.
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
138
Median Asking Price
$2.49M
Median $/Sqft
$1,782
Avg Days on Market
N/A
New This Week
4
Price Reduced
34%
Sold (30 Days)
11
Median Sale Price
$2.25M
Live data from RLS at REBNY • Updated 5/27/26, 11:30 AM EST
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Location
15 UNION Square W #5A, 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 $6,268 per month. Confirm the exact amount with the listing broker before making an offer.
This property has 2 bedrooms and 2 full bathrooms and 1 half bathroom.
The listed interior living area is 2,200 square feet. Verify dimensions independently during due diligence.
According to MLS records, the building was constructed in 1870, making it approximately 156 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 $6,500,000 for 2,200 sq ft, the asking price per square foot is approximately $2,955. 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 mcoste@kwnyc.com. 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 Corcoran Group - Meris G Blumstein
Listing Contact: (917) 613-8553
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 5/27/2026 at 3:30 PM UTC