Milton Coste

Licensed Real Estate Associate Broker

(917) 416-7433

SOLD FOR $2,999,000

· Closed July 10, 2024

40 E 21ST Street #10
Closed For Sale Co-op

$2,999,000

40 E 21ST Street #10

Flatiron, Manhattan

MLS® #RLS10987115

RLS at REBNY

Listing by Douglas Elliman Real Estate

2

Bedrooms

2

Baths

N/A

Sq. Ft.

1912

Year Built

Quick Summary

Bedrooms 2
Bathrooms 2
Year Built 1912
Ownership Co-op
Maintenance $3,074/mo
Neighborhood Flatiron
Floor 10 of 11

Property Highlights

  • Views: City
  • Style: Loft architecture
  • Character: Pre-war building (1912)

Property Details

Type Co-op
Ownership Stock Cooperative
Total Rooms 6
Baths 2 Full
Floor 10 of 11
View City
Pets Yes
Year Built 1912
Architectural Style Loft
Basement Other
Block/Lot 00849/7503

Listing History

Event Date Price Change
Listed Mar 22, 2024 $3,250,000 -
Currently May 13, 2026 $2,999,000 -7.7%

Description

Welcome to your dream two-bedroom loft in mint condition, boasting unparalleled luxury and comfort in the heart of Flatiron. With four exposures, this immaculate residence is flooded with amazing natural light, highlighting its high ceilings and large windows that frame open views of surrounding iconic landmarks including the Empire State Building.

Step into a serene oasis where every detail has been carefully curated. Enjoy the tranquility of pindrop serenity in this peaceful retreat, offering an escape from your busy city life.

The spacious interior is complemented by an open layout, and large living and dining area, perfect for entertaining or simply relaxing in style. Ample closet space ensures effortless organization, while the newly renovated Chef's kitchen with custom cabinets, marble counters and integrated high end appliances are the heart of the home.

Upstairs, you'll find a private roof deck shared only by the residents of the building providing a serene outdoor sanctuary. Ideal for soaking in the breathtaking views or hosting intimate gatherings under the stars, this is truly a special space where you can your guests will enjoy taking in some fresh air.

Located in one of the most coveted neighborhoods, you will delight in the incredible variety of restaurants, shopping, and transportation options right at your doorstep. Experience the vibrant energy of Union Square's Green Market, indulge in the culinary delights of nearby Michelin-rated meccas, and enjoy convenient access to Midtown, Trader Joe's, and Whole Foods, all just minutes away.

Don't miss the opportunity to make this exceptional loft your new home, where luxury living meets unparalleled convenience in the heart of Flatiron. Schedule your viewing today and prepare to be captivated by the epitome of urban sophistication.

Features & Amenities

Interior Features

Separate Formal Dining Room Smoke Free Building None Washer Hookup In Unit

Exterior Features

None

Appliances

Washer Dryer Allowed

Building Information

Building Data View Compliance & Permits
Total Units 10
Stories 11
Style Loft

Financial Details

Maintenance $3,074/mo
Original Price $3,250,000
Sale Price $2,999,000
Previous Price $3,250,000

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

133

Median Asking Price

$2.29M

Median $/Sqft

$1,788

Avg Days on Market

N/A

New This Week

9

Price Reduced

32%

Sold (30 Days)

12

Median Sale Price

$2.54M

Live data from RLS at REBNY • Updated 5/13/26, 6:35 PM EST

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Location

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40 E 21ST Street #10, Flatiron, New York County

Floor Plans

Floor Plan 1
Floor Plan 2

Building Information

Official NYC property records for this building

1920
Year Built
106 years old
1
Floors
M3-1
Zoning District

Tax & Assessment

Assessed Value: $2,969,100
Land Value: $807,750
Exemptions: $0

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

Lot Area: 80,916 SF
Building Area: 57,200 SF
Built FAR: 0.71

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

The current listed monthly maintenance are $3,074 per month. Confirm the exact amount with the listing broker before making an offer.

This property has 2 bedrooms and 2 full bathrooms.

According to MLS records, the building was constructed in 1912, making it approximately 114 years old.

This listing is a co-op (stock cooperative). Buyers purchase shares in a corporation rather than real property, and the board must approve all sales.

Pets are permitted at this property: Pets Allowed ,Building Pets Allowed Comments:Pets Allowed. Contact the listing broker for weight limits or breed restrictions.

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: RLS10987115
First Listed: 3/22/2024
On Market: 3/22/2024
Price Changed: 9/24/2024
Closed: 7/10/2024
Contract Date: 3/22/2024

Listing Courtesy of Douglas Elliman Real Estate - Joshua Rubin

Listing Contact: (917) 727-6321

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 5/13/2026 at 10:35 PM UTC

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