Milton Coste

Licensed Real Estate Associate Broker

(917) 416-7433

SOLD FOR $15,500,000

· Closed October 24, 2017

17 W 20th Street
Closed For Sale Mixed Use

$15,500,000

$925 per sq ft

17 W 20th Street

Flatiron, Manhattan

MLS® #RLS10090540

RLS at REBNY

Listing by Prime Manhattan Residential

Studio

0

Bath

16,750

Sq. Ft.

1910

Year Built

Quick Summary

Bedrooms Studio
Bathrooms 0
Living Area 16,750 sq ft
Year Built 1910
Neighborhood Flatiron

Property Highlights

  • Style: Prewar architecture
  • Character: Pre-war building (1910)

Property Details

Type Mixed Use
Baths 0 Full
Pets Yes
Cross Street Fifth Avenue/Sixth Avenue
Year Built 1910
Living Area 16,750 sq ft
Architectural Style Prewar
Parcel # 0822-0023
Block/Lot 822/23

Listing History

Event Date Price Change
Listed Apr 24, 2017 $15,500,000 -
Currently May 14, 2026 $15,500,000 -

Building Information

The 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 Neighborhood

Active Listings

135

Median Asking Price

$2.29M

Median $/Sqft

$1,775

Avg Days on Market

N/A

New This Week

7

Price Reduced

32%

Sold (30 Days)

0

Median Sale Price

N/A

Live data from RLS at REBNY • Updated 5/14/26, 7:32 PM EST

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Location

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17 W 20th Street, Flatiron, New York County • Near Fifth Avenue/Sixth Avenue

Building Information

Official NYC property records for this building

1949
Year Built
77 years old
3
Floors
60
Residential Units
R5
Zoning District
Walk-Up Apartments

Tax & Assessment

Assessed Value: $4,446,450
Land Value: $706,500
Exemptions: $4,446,450

Note: Individual unit taxes may differ. Verify current tax bills with NYC DOF.

Lot Area: 52,330 SF
Building Area: 45,117 SF
Built FAR: 0.86
Allowed FAR: 1.5

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

Frequently Asked Questions

Common questions about this property

This property has 0 bedrooms and 0 full bathrooms.

The listed interior living area is 16,750 square feet. Verify dimensions independently during due diligence.

According to MLS records, the building was constructed in 1910, making it approximately 116 years old.

Pets are permitted at this property. Contact the listing broker for weight limits or breed restrictions.

At the current list price of $15,500,000 for 16,750 sq ft, the asking price per square foot is approximately $925. 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) 416-7433
MLS® ID: RLS10090540
First Listed: 4/24/2017
Closed: 10/24/2017
Contract Date: 4/24/2017

Listing Courtesy of Prime Manhattan Residential - Robert Dankner

Listing Contact: (917) 951-2242

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 at REBNY

RLS Data display by Keller Williams NYC. Data last updated on 5/14/2026 at 11:32 PM UTC

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