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RLS IDX Data display by Real Estate Rebate Team. This information is not verified for authenticity or accuracy and is not guaranteed and may not reflect all real estate activity in the market. ©2025 The Real Estate Board of New York, Inc., All rights reserved. IDX information is provided exclusively for consumers’ personal, non-commercial use and it may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing.

 

All information furnished regarding property for sale, rental or financing is from sources deemed reliable, but no warranty or representation is made as to the accuracy thereof and same is submitted subject to errors, omissions, change of price, rental or other conditions, prior sale, lease or financing or withdrawal without notice. All dimensions are approximate. For exact dimensions, you must hire your own architect or engineer and for no listing shall the number of bedrooms listed be considered a legal conclusion.

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  1. Home
  2. Buy
  3. New York City
  4. Manhattan
  5. 10003
  6. 15 Union Square #16
Property thumbnail
1 / 22
Condominium•Flatiron

15 Union Square #16, New York City, NY 10003

Listing Courtesy of Triumph Property Group Ltd

$8,495,000

Potential Rebate: $127,425

Condominium
3 Beds
4 Baths
7 Rooms
2,849 sqft
Built 1870
12 Stories
2,982/ft²
Listed on Sep 30, 2025
108 days on market
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Overview

15 Union Square West — Residence 16<br><br>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.<br><br>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.<br><br>* Large Storage Transfers with Unit <br><br>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.<br><br>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.<br><br>This rare residence offers an unparalleled chance to own a home of this magnitude in Union Square’s most distinguished full-service condominium<br><br>* Pictures are virtually staged <br>*1% Flip Tax

Home Features

  • •Central Air
  • •Building Washer Dryer Install Allowed
  • •In Unit
  • •Building Storage
  • •Entrance Foyer
  • •Kitchen Window
  • •Dryer
  • •Washer

Estimated Monthly Payment

$55,718 per month

30 year fixed, 6.28% Interest

Principal and Interest
$41,977
Property Taxes
$5,575
Maintenance/Common Charges
$8,166

Estimated Rebate for this Home

One-time rebate at closing

$127,425

Monthly savings impact

$354/mo

Effective Purchase Price

$8,367,575

(Home Price - Estimated Rebate)

💡 Estimated rebate from our commission

The rebate is paid to you at closing and can help offset closing costs or other expenses.

Calculator Disclaimer: Commission structures vary by property, developer, and transaction. Resale properties typically offer around 3% buyer-side commission, and new developments around 5%, but this is not guaranteed. New developments are often open to negotiation, and each property and transaction is unique. Rebate amounts shown are estimates only. Please confirm commission terms and rebate eligibility with Regis Roumila for the specific property you are interested in. This information is not provided by the Real Estate Board of New York (REBNY).

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Listing Courtesy of Demsker Realty

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View Details

RLS IDX Data display by Real Estate Rebate Team. This 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. IDX information is provided exclusively for consumers’ personal, non-commercial use and it may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing.

 

All information furnished regarding property for sale, rental or financing is from sources deemed reliable, but no warranty or representation is made as to the accuracy thereof and same is submitted subject to errors, omissions, change of price, rental or other conditions, prior sale, lease or financing or withdrawal without notice. All dimensions are approximate. For exact dimensions, you must hire your own architect or engineer and the number of bedrooms listed is for informational purposes and is not a legal conclusion. Please consult with your own architect or engineer for exact dimensions and legal specifications.

The Real Estate Rebate Team

Listing Courtesy of Triumph Property Group Ltd

Data Source: TRESTLE #RLS20051861

RLS at REBNY

RLS at REBNY - Real Estate Board of New York Residential Listing Service

Why Buy With Us

Rebates Up To

2.5%

25+ Years

Experience

REBNY & NAR

Member

Verified

Listings

RLS IDX Data display by Real Estate Rebate Team. This 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. IDX information is provided exclusively for consumers’ personal, non-commercial use and it may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing.

 

All information furnished regarding property for sale, rental or financing is from sources deemed reliable, but no warranty or representation is made as to the accuracy thereof and same is submitted subject to errors, omissions, change of price, rental or other conditions, prior sale, lease or financing or withdrawal without notice. All dimensions are approximate. For exact dimensions, you must hire your own architect or engineer and the number of bedrooms listed is for informational purposes and is not a legal conclusion. Please consult with your own architect or engineer for exact dimensions and legal specifications.

The Real Estate Rebate Team

Listing Courtesy of Triumph Property Group Ltd

Data Source: TRESTLE #RLS20051861

RLS at REBNY

RLS at REBNY - Real Estate Board of New York Residential Listing Service

Price Analysis

Compare average listing prices and value metrics for 15 Union Square against the surrounding Flatiron market.

Based on 1 active unit in building vs 101 in area

Average List Price

Building$8.5M
Neighborhood$3.6M

Price Per SqFt

Building Avg$2,982/ft²
Neighborhood Avg$1,787/ft²
Premium Market

66.89% Higher

than the Flatiron price-per-sq-ft average

This building commands a premium compared to the neighborhood baseline. This typically indicates superior amenities, newer construction, or prime positioning within Flatiron.

Flatiron

Overview of Flatiron

Flatiron is named after its iconic building. It is a hub of tech and design. For buyers seeking Flatiron Manhattan real estate, it offers loft living. Living in Flatiron is central. As a Manhattan NYC neighborhood, it is fashionable.

Real Estate & Housing Market

The market for homes for sale in Flatiron includes sprawling lofts.

Lifestyle & Community

The lifestyle in Flatiron is sophisticated.

Transportation & Accessibility

Flatiron is served by the N/R/W trains.

Parks, Schools & Amenities

Madison Square Park is the front yard. Amenities: Eataly Eataly is a major draw.

Who This Neighborhood Is Best For

Flatiron is best for fashionistas and tech workers.
Flatiron GuideAll Neighborhoods
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