Milton Coste

Licensed Real Estate Associate Broker

(917) 416-7433

SOLD FOR $9,000,000

· Closed March 7, 2022

6 W 20th Street #8-FLR
Closed For Sale Co-op

$9,000,000

$2,195 per sq ft

6 W 20th Street #8-FLR

Flatiron, Manhattan

Greenwich Building, The

MLS® #RLS10759222

RLS at REBNY

Listing by Compass

4

Bedrooms

3.5

Baths

4,100

Sq. Ft.

1907

Year Built

Quick Summary

Bedrooms 4
Bathrooms 4 full, 1 half
Living Area 4,100 sq ft
Year Built 1907
Ownership Co-op
Maintenance $6,503/mo
Neighborhood Flatiron
Floor 8 of 11

Property Highlights

  • Exposure: East,North,South facing
  • Style: Prewar architecture
  • Climate Control: Central Air

Property Details

Type Co-op
Ownership Stock Cooperative
Total Rooms 6
Baths 3 Full, 1 Half
Floor 8 of 11
Exposure East,North,South
Cooling Central Air
Pets Yes
Cross Street Fifth Avenue/Avenue of the Americas
Year Built 1907
Living Area 4,100 sq ft
Architectural Style Prewar
Block/Lot 821/49

Listing History

Event Date Price Change
Listed Oct 27, 2014 $9,000,000 -
Currently May 18, 2026 $9,000,000 -

Description

This triple-mint, recently completed, precisely gut-renovated private full-floor loft off Fifth Avenue is just moments from Madison Square Park. Designed by Russell Riccardi Architect and executed by John Hummel and Associates this voluminous and wide loft spanning 50 feet of frontage is bathed in natural light all day. The key-locked elevator opens directly into the spacious entry gallery to reveal this extraordinarily detailed renovation. You are immediately captivated by the soaring (almost 12ft) ceilings with gleaming naturally finished white oak plank herringbone floors beneath that have been installed with a 15mm sound-absorbing mat for quiet. This is but one indicator that this renovation is not merely about cosmetics. The lavishly scaled north-facing Living room features a wide custom Ecosmart fireplace. Just off of the living room is a hidden wall panel that leads into the brick-walled library/office fitted with floor-to-ceiling custom millwork and built-in pull-down bunk beds. The adjacent powder room features Monte Nero black marble floors, Fantini hardware with Murano glass, and a monolithic Corian custom vanity. The chef's kitchen is sumptuously milled out of East Indian Laurelwood and steel with Cristallo Quartzite slabs for the counters and backsplash. It is open but is easily closed off with intelligently engineered pocket doors. There is a Wolf 8-burner range top with griddle, Wolf 58' high capacity hood (vented out), Wolf 30' M series oven, Wolf Convection 30' M series steam oven, Wolf warming drawer, Gaggenau 36' French door refrigerator, dual Subzero 30' refrigerator drawers, 3 Sub Zero 30' wine refrigerators (435-bottle capacity) and 2 Miele dishwashers and a deep sink with Dornbracht fixtures. Just off of the kitchen is a very large pantry that leads into the full laundry room with Venezia Terrazo floor, Vega Quartz vanity, and large-format Electrolux washer and vented dryer. The south-facing media room adjoining the kitchen features Optimum steel-casement windows with an open AV wall made of East Indian Laurel, separating the kitchen and the full dining room. The dining room easily seats 12 (with room to spare) and features a stunning custom-designed Arrebeuri chandelier. This is the perfect setting to entertain on a grand scale. The spacious master suite is accessed via a vestibule with oversized steel doors with frosted glass panes and features a custom-crafted built-in walnut bed with side tables and new dual-pane, oversized north-facing windows. The expertly detailed custom-built dressing room and closets are of an epic scale. The master bathroom is a calming mix of elegant materials with a separate wet room and water closet with Corian ceilings in the wet areas. The floating book-matched slab Danby Fantastico marble feature wall behind the freestanding soaking tub qualifies as a work of art. Studium marble tile floors, Fantini fixtures, radiant heated floors and heated towel rack, nano white Glassos for the sink counters, and bathroom walls combine to make this room an oasis of calm and refinement. The well proportioned second and third bedrooms, both face south and also feature impressive thermally broken custom dual pane steel casement windows with UV protection. The second bedroom features an en-suite bathroom with a separate shower, Bianco Dolomiti herringbone marble floors, Vega quartz vanity top, Dornbracht fixtures, and radiant heated floors, and a pass-thru custom dressing area with floor to ceiling custom millwork closets and separate built-in desk-workstation. The third bedroom is almost identical and is serviced by a bathroom across the hall that has Borroccu ash grey tile floors, Vega quartz vanity top, Dornbracht fixtures, and radiant heated floors. The attention to detail throughout this home is remarkable: custom hardware and invisible hinges, thermally broken custom dual pane steel casement windows with UV protection, an abundance of custom millwork (storage) features throughout. A food-grade water filtration, multi-zone high capacity heat pump central HVAC with built-in humidification system (for art) as well as redundant steam heat provide year-round comfort. The extensive lighting systems were designed by Clinard Design Studio and powered by a Lutron Homeworks system. A Savant home automation system controls the home locally or remotely: multi-source audio and video, lighting, motorized window treatments, HVAC, and security camera monitoring. Intelli-tec security and enterprise-grade Wi-Fi by Ruckus complete the package Conveniently located in the Ladies' Mile Area in the heart of the Flatiron District, moments from Eataly, Whole Foods, and every form of transportation, restaurant, and amenity, 6 W 20th is a well-run coop with very low monthly carrying costs and superb provenance, home to some of the world's great photographers. The building will be installing new passenger and freight elevators and renovating the lobby. The building recently installed all-new water pipes, electrical risers, and gas pipes throughout, as well as a new water pump system. Part-time concierge 8am-4pm Monday - Friday

Features & Amenities

Interior Features

Dining Area Den Pantry Building Washer Dryer Install Allowed

Appliances

Dryer Washer

Building Information

Financial Details

Maintenance $6,503/mo
Sale Price $9,000,000

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

139

Median Asking Price

$2.42M

Median $/Sqft

$1,788

Avg Days on Market

N/A

New This Week

12

Price Reduced

32%

Sold (30 Days)

4

Median Sale Price

$1.55M

Live data from RLS at REBNY • Updated 5/18/26, 11:26 AM EST

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Location

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6 W 20th Street #8-FLR, Flatiron, New York County • Near Fifth Avenue/Avenue of the Americas

Building Information

Official NYC property records for this building

M1-5M
Zoning District

Tax & Assessment

Assessed Value: $1,228,950
Land Value: $1,228,950
Exemptions: $1,228,950

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

Lot Area: 4,600 SF

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 $6,503 per month. Confirm the exact amount with the listing broker before making an offer.

This property has 4 bedrooms and 3 full bathrooms and 1 half bathroom.

The listed interior living area is 4,100 square feet. Verify dimensions independently during due diligence.

According to MLS records, the building was constructed in 1907, making it approximately 119 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. Contact the listing broker for weight limits or breed restrictions.

At the current list price of $9,000,000 for 4,100 sq ft, the asking price per square foot is approximately $2,195. 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: RLS10759222
First Listed: 10/27/2014
Closed: 3/7/2022
Contract Date: 8/5/2019

Listing Courtesy of Compass - Leonard Steinberg

Listing Contact: (646) 375-1932

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 3:26 PM UTC

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