Milton Coste

Licensed Real Estate Associate Broker

(917) 416-7433

SOLD FOR $1,300,000

Listed at $1,395,000 · Sold 6.8% below asking · Closed July 15, 2024

4 W 21st Street #4-D
Closed For Sale Condop

$1,395,000

$933 per sq ft

4 W 21st Street #4-D

Flatiron, Manhattan

MLS® #RLS10986723

RLS at REBNY

Listing by The Agency Brokerage

2

Bedrooms

2.5

Baths

1,495

Sq. Ft.

2006

Year Built

Quick Summary

Bedrooms 2
Bathrooms 3 full, 1 half
Living Area 1,495 sq ft
Year Built 2006
Ownership Condop
HOA/Common Charges $6,168.79/mo
Parking Garage
Neighborhood Flatiron
Floor 4 of 17

Property Highlights

  • Views: City
  • Exposure: North,South facing
  • Style: Loft architecture

Property Details

Type Condop
Ownership Condop
Total Rooms 4
Baths 2 Full, 1 Half
Floor 4 of 17
View City
Exposure North,South
Cooling Central Air
Pets Yes
Cross Street Fifth Avenue/Avenue of the Americas
Year Built 2006
Living Area 1,495 sq ft
Parking Garage Available
Architectural Style Loft
Block/Lot 822/45

Listing History

Event Date Price Change
Listed May 3, 2024 $1,395,000 -
Currently May 17, 2026 $1,395,000 -

Description

Located in the distinguished Flatiron District, Apartment 4D at 4 West 21st Street captures the essence of modern elegance with its expansive interiors and exceptional location. The apartment boasts a sophisticated loft-like living room highlighted by 10-foot ceilings and expansive floor-to-ceiling windows. These windows not only fill the room with abundant natural light but also offer a tranquil northern exposure.

The state-of-the-art chef’s kitchen is a culinary dream, featuring high-end Miele and Subzero appliances. It is complemented by a sink disposal, under-cabinet lighting, and extensive white enamel cabinets against a backdrop of gray granite countertops and backsplash. This kitchen is perfect for casual meals or large gatherings.

The spacious primary suite includes a large walk-in closet and an additional linen closet. The en-suite primary bathroom is designed for relaxation, complete with sleek white granite tiling, a large soaking tub, a glass-enclosed shower, and double sinks.

The second bedroom is equipped with a double closet and an en-suite bathroom that maintains the home’s elegant white and gray granite aesthetic. Additional features include a vented washer/dryer and central air conditioning for the utmost comfort.

This home’s prime location in the Flatiron District places it within close proximity to Madison Square Park, top-tier shopping, and dining experiences. Not only does the residence work wonderfully as a primary home, but the building is very investor-friendly, and this apartment has amazing rental history of $11k+ per month offering over a 4% cap rate.

Features & Amenities

Interior Features

Building Washer Dryer Install Allowed Common Area In Unit

Exterior Features

Building Storage Building Courtyard Building Roof Deck

Appliances

Dryer Washer

Building Information

Financial Details

Common Charges $6,168.79/mo
Sale Price $1,300,000
Land Lease Yes

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

134

Median Asking Price

$2.32M

Median $/Sqft

$1,775

Avg Days on Market

N/A

New This Week

8

Price Reduced

33%

Sold (30 Days)

3

Median Sale Price

$1.40M

Live data from RLS at REBNY • Updated 5/17/26, 6:13 PM EST

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Location

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4 W 21st Street #4-D, 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 $6,168.79 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 1,495 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 $1,395,000 for 1,495 sq ft, the asking price per square foot is approximately $933. 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: RLS10986723
First Listed: 5/3/2024
On Market: 5/3/2024
Closed: 7/15/2024
Contract Date: 5/3/2024

Listing Courtesy of The Agency Brokerage - Tyler Whitman

Listing Contact: (866) 371-6468

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 5/17/2026 at 10:13 PM UTC

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