Milton Coste

Licensed Real Estate Associate Broker

(917) 416-7433

SOLD FOR $2,200,000

· Closed April 16, 2015

4 W 21st Street #5-B
Closed For Sale Condop

$2,200,000

$1,467 per sq ft

4 W 21st Street #5-B

Flatiron, Manhattan

MLS® #RLS10408838

RLS at REBNY

Listing by Nest Seekers International

2

Bedrooms

3

Baths

1,500

Sq. Ft.

2006

Year Built

Quick Summary

Bedrooms 2
Bathrooms 3
Living Area 1,500 sq ft
Year Built 2006
Ownership Condop
HOA/Common Charges $3,199/mo
Parking Garage
Neighborhood Flatiron
Floor 5 of 17

Property Highlights

  • Views: City
  • Exposure: North,South facing
  • Climate Control: Other

Property Details

Type Condop
Ownership Condop
Total Rooms 6
Baths 3 Full
Floor 5 of 17
View City
Exposure North,South
Cooling Other
Pets Yes
Cross Street Fifth Avenue/Avenue of the Americas
Year Built 2006
Living Area 1,500 sq ft
Parking Garage Available
Block/Lot 822/45

Listing History

Event Date Price Change
Listed Mar 27, 2013 $2,200,000 -
Currently Jun 10, 2026 $2,200,000 -

Description

This luxury loft like 2 bedroom 3 bath has it all - Empire state views, luxurious material, exquisite craftsmanship, sleek open kitchen and refined baths. This superior building was recently constructed and has a contemporary glass and stainless steel facade designed by well-known architect Hugh Hardy and interior design by Antony Todd who merged understated elegance with modern convenience. The large open kitchen has custom Poliform Varenna white high gloss lacquer cabinets, complimented by Pied Auberge stone counter tops and back splash, Sub-Zero refrigerator and Miele appliances and garbage disposal. Entertaining is easy with the open kitchen flowing seamlessly into the dining and living area. The master suite is oversized with a custom built out walk-in closet and the spa like master bathroom has a Kohler Tea for two bathtub, large glass shower, double sinks and features Glastos and Pietra Cardosa in honed finish. All bathrooms feature custom vanities, Robern medicine cabinets and custom lighting. This floor through unit has double painted, oversized windows with dramatic light, high ceilings, central air and W/D. Prime location, just off Fifth avenue with outstanding restaurants, shopping (Eataly, Trader Joe's) and steps from Madison Square Park . This superior building offers white glove amenities such as 24 hour doorman/concierge, state of the art fitness center, 2,500 sq ft landscaped outdoor terrace and onsite parking with direct building access. 421-A tax abatement in place. Pets, pied-a-terres and sublets are allowed. "The Residences at 4 W 21 represent smart apartment living- with attention to detail throughout that creates an immediately inviting and personable space that is upbeat and fresh." Anthony Todd

Features & Amenities

Interior Features

Building Washer Dryer Install Allowed Common Area

Exterior Features

Building Courtyard Building Roof Deck

Appliances

Dryer Washer

Building Information

Financial Details

Common Charges $3,199/mo
Sale Price $2,200,000

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

136

Median Asking Price

$2.20M

Median $/Sqft

$1,778

Avg Days on Market

N/A

New This Week

6

Price Reduced

38%

Sold (30 Days)

14

Median Sale Price

$2.25M

Live data from RLS at REBNY • Updated 6/10/26, 1:36 AM EST

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Location

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4 W 21st Street #5-B, Flatiron, New York County • Near Fifth Avenue/Avenue of the Americas

Floor Plans

Floor Plan 1

Building Information

Official NYC property records for this building

2005
Year Built
21 years old
17
Floors
54
Residential Units
C6-4A
Zoning District
Elevator Apartments Historic District: Ladies' Mile Historic District

Tax & Assessment

Assessed Value: $18,077,400
Land Value: $900,000
Exemptions: $2,290

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

Lot Area: 9,384 SF
Building Area: 119,136 SF
Built FAR: 12.7
Allowed FAR: 10

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 common charges are $3,199 per month. Confirm the exact amount with the listing broker before making an offer.

This property has 2 bedrooms and 3 full bathrooms.

The listed interior living area is 1,500 square feet. Verify dimensions independently during due diligence.

According to MLS records, the building was constructed in 2006, making it approximately 20 years old.

This listing is a condop, a hybrid structure where the building is legally a co-op but individual units are sold with greater flexibility, often including subletting rights similar to condos.

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

At the current list price of $2,200,000 for 1,500 sq ft, the asking price per square foot is approximately $1,467. 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: RLS10408838
First Listed: 3/27/2013
Closed: 4/16/2015
Contract Date: 3/23/2013

Listing Courtesy of Nest Seekers International - Caroline Grane

Listing Contact: (917) 601-2703

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 6/10/2026 at 5:36 AM UTC

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