Milton Coste

Licensed Real Estate Associate Broker

(917) 416-7433

SOLD FOR $9,999,000

· Closed June 12, 2023

Closed For Sale Condo

$9,999,000

$3,690 per sq ft

21 W 20TH Street #PH4

Flatiron, Manhattan

MLS® #RLS10875323

RLS at REBNY

Listing by Sotheby's International Realty, Inc.

3

Bedrooms

2.5

Baths

2,710

Sq. Ft.

2016

Year Built

Quick Summary

Bedrooms 3
Bathrooms 3 full, 1 half
Living Area 2,710 sq ft
Lot Size 9,200 sq ft
Year Built 2016
Ownership Condo
HOA/Common Charges $5,396/mo
Property Taxes $56,844/yr
Neighborhood Flatiron
Floor 15 of 16

Property Highlights

  • Views: City
  • Exposure: East,North,South,West facing
  • Outdoor Space: Building Terrace, Terrace

Property Details

Type Condo
Ownership Condominium
Total Rooms 8
Baths 2 Full, 1 Half
Floor 15 of 16
View City
Exposure East,North,South,West
Cooling Central Air
Pets Yes
Year Built 2016
Living Area 2,710 sq ft
Lot Size 9,200 sq ft

Listing History

Event Date Price Change
Listed Apr 29, 2022 $11,995,000 -
Price Reduced Jun 12, 2023 $10,745,000 -10.4%
Currently May 18, 2026 $9,999,000 -6.9%

Description

Extraordinary one-of-a-kind duplex Condo in the sky! No expense was spared in the meticulous renovation to customize this 3-bedroom 2,710 square foot penthouse with an additional 950 square feet of exceptional outdoor space. The keyed elevator opens directly to the lower and upper levels of this sun filled home with unobstructed panoramic views with southern, northern and eastern exposures through floor to ceiling windows. A spectacular wrap around terrace awaits just outside the living room offering unparalleled views of the Freedom Tower to the Empire State Building. Seamlessly designed by world renowned landscape architect Edmund Hollander, this terrace is truly a masterpiece to behold. This outdoor oasis boasts a six-person hot tub, private outdoor shower, gas fireplace, full outdoor sound system, a weather resistant 4K television, full outdoor kitchen and dining area with gas BBQ, and a retractable canopy. The terrace can also be enjoyed year-round by a self-irrigation system servicing the lush greenery during the warmer months and snow-melting heated floors & heat lamps for those colder months. The possibilities for outdoor entertaining all year round are endless here! This home has an equally impressive indoor living area outfitted with the highest quality finishes and stunning upgrades throughout. Returning into the living room, you will find high-end audio, lighting, and a top-of-the-line Sony 4K projector with a custom motorized screen that easily transforms this room into your own home theater. The impeccably designed chef's kitchen is a masterful work of art with custom cabinetry featuring a complete Miele appliance package along with a most perfect wine fridge that would cater to any wine enthusiast's dream. The back area of the first level features two sunny guest bedrooms, full bathroom and washer/dryer. You will also be pleased to find a new air filtration center that cleverly uses ultra violet lights to sanitize all incoming air. On the upper level lies a meticulously designed, full floor master suite boasting magnificent views of the Freedom Tower and the Empire State through floor to ceiling glass windows. The custom windowed dressing room features a custom center island, and shelving while a second walk in closet sits right across. The primary bath offers the same iconic Empire State views and is outfitted with a LaCava soaking tub, steam shower, rain showerhead, double limestone vanities, and radiant heated floors. On the opposite wing of the primary suite is a home office with a second spectacular planted and self-irrigating terrace. Virtually every room in the house has been thoughtfully designed with hidden in-wall speakers. Other special features include Venetian plastered walls, a Savant home control center, multi zoned heating and cooling, air filtration center and motorized shades. Transferred with the sale is a large double unit storage cage. 21 West 20th is a WELL and LEED certified building offering a multitude of amenities including a 24 doorman, resident lounge, outdoor garden, cold storage, bike storage and pet wash room. Conveniently located between 5th and 6th Avenue, you will enjoy some of the finest restaurants, shopping and entertainment that NYC has to offer. Please note that there is currently a 421A tax abatement in place until July 2023.

Features & Amenities

Interior Features

Entrance Foyer Fireplace

Exterior Features

Building Terrace Terrace

Appliances

Dryer Washer Dryer Allowed Washer

Building Information

Financial Details

Common Charges $5,396/mo
RE Taxes $56,844/yr ($4,737/mo)
Original Price $11,995,000
Sale Price $9,999,000
Previous Price $10,745,000

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

137

Median Asking Price

$2.42M

Median $/Sqft

$1,788

Avg Days on Market

N/A

New This Week

10

Price Reduced

32%

Sold (30 Days)

3

Median Sale Price

$1.40M

Live data from RLS at REBNY • Updated 5/17/26, 11:47 PM EST

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Location

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21 W 20TH Street #PH4, Flatiron, New York County

Virtual Tour

Floor Plans

Floor Plan 1

Building Information

Official NYC property records for this building

1927
Year Built
99 years old
16
Floors
14
Residential Units
C6-4A
Zoning District
Condominiums Historic District: Ladies' Mile Historic District

Tax & Assessment

Assessed Value: $18,056,697
Land Value: $1,655,999
Exemptions: $0

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

Lot Area: 9,200 SF
Building Area: 80,907 SF
Built FAR: 8.79
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 $5,396 per month. Confirm the exact amount with the listing broker before making an offer.

The current listed annual property tax is $56,844, or roughly $4,737 per month. Verify the current assessment with your attorney before closing.

This property has 3 bedrooms and 2 full bathrooms and 1 half bathroom.

The listed interior living area is 2,710 square feet. Verify dimensions independently during due diligence.

According to MLS records, the building was constructed in 2016, making it approximately 10 years old.

This listing is a condominium. Buyers receive a deed to their individual unit and own their space outright, subject to condo association rules.

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

At the current list price of $9,999,000 for 2,710 sq ft, the asking price per square foot is approximately $3,690. 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 mcoste@kwnyc.com. 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: RLS10875323
First Listed: 4/29/2022
Price Changed: 6/12/2023
Closed: 6/12/2023
Contract Date: 4/29/2022

Listing Courtesy of Sotheby's International Realty, Inc. - Matthew Fox

Listing Contact: (212) 606-7660

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 5/18/2026 at 3:47 AM UTC

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