Prevu by reAlpha
BuySellBlogBrowse Listings

6 W 20TH Street 2New York (Manhattan), NY 10011

For Sale

$5,500,000

Smart Buyer Rebate $68,750

Opportunities like this rarely come up in Flatiron. Unit 2 at 6 West 20th Street is a full-floor loft of approximately 4,100 square feet in The Greenwich Building, a 1907 Schwartz & Gross landmark in the heart of the Ladies' Mile Historic District. Here is the chance to buy a true full-floor loft in one of Manhattan's most sought-after neighborhoods, renovate it to your exact taste, and build significant value along the way.

The loft already has a working kitchen and 1.5 baths. The rest is a vast, open space ready for your vision. Soaring 14-foot ceilings and giant original pivot windows fill the floor with north and south light, giving the space the volume and character that define classic pre-war loft living. With about 50 feet of frontage and a deep, regular floor plate, the layout can easily fit four bedrooms plus a home office, alongside generous living and dining space and a great room built for entertaining.

The loft also has approximately 300 square feet of private outdoor space, a rare feature for a full-floor home in Flatiron. Picture morning coffee, summer dinners, or a planted garden retreat right off your living space.

Bring your contractor and architect to build your dream home. With the floor wide open, you can design your home almost from scratch, from the number of bedrooms to every finish. Wet-over-dry layouts are permitted, giving you real freedom to place kitchens and bathrooms where they work best for your plan rather than where the building dictates.

The upside is clear. A recently renovated full floor with the same footprint in this building is currently offered at $8,500,000 (without outdoor space). Buyers who want to create a custom home and build substantial equity at the same time will be hard pressed to find a better starting point in downtown Manhattan.

The unit is currently approved for commercial use, however, the co-op board has confirmed it supports converting the unit to residential and is actively encouraging it, following the many floors above that have already made the change. This is a well-established path in the building, not an exception.

The Greenwich Building is a boutique, 11-story neo-Renaissance co-op with a striking landmarked facade and only a handful of homes. Residents enjoy keyed elevator access to their floor, two elevators, a ButterflyMX virtual doorman, and a pet-friendly policy.

Set just off Fifth Avenue on one of Flatiron's prettiest blocks, the building puts you steps from Madison Square Park, Union Square and its Greenmarket, Eataly, and some of the city's best restaurants and shops. A Citi Bike dock sits right across the street, and the subway lines at 23rd Street and Union Square are a short walk away.

Buy it, renovate it, and build your dream home, with real value built in from day one.

Several images have been virtually rendered. This unit requires a renovation.

Listed by Ryan Serhant

·

Serhant LLC

·

646-480-7665

Last updated October 03, 2026

·

Source: OneKey #1057942

Listing Facts

  • TypeCo-op
  • NeighborhoodFlatiron District
  • Bedrooms4
  • Bathrooms4
  • Days on Prevu29
  • HOA/Maint. Fees$8,670/month
  • Size4,400 sqft
  • Price per sqft$1,250

Amenities

  • Private Outdoor Space

Location

Mortgage Calculator

Listing History

10/02/2026
Listed by Serhant LLC
$5,500,000
  1. 10/02/2026$5,500,000
    Listed by Serhant LLC

Estimated Closing Costs

Attorney Fees
$4,000
NYC Mansion Tax
$123,750
Bank Attorney
$1,500
Other Closing Costs
$4,000
Total
$133,250

Estimated closing costs are based on the list price of $5,500,000 and a 20% downpayment. These estimates are for indicative purposes only. Actual closing costs may vary for each transaction. See the Closing Costs Calculator for calculations specific to your situation.

Property Details for 6 W 20TH Street 2

Association

Amenities

  • Pets Allowed: No

Exterior

Construction

  • Stories Total: 11
  • Year Built: 1907
  • Entry Level: 2

Features

  • Patio And Porch Features: Terrace
  • View: City

Measurements

  • Building Area Units: Square Feet

Interior

Measurements

  • Living Area: 4,400
  • Living Area Source: Other

Rooms

  • Bathrooms Full: 3
  • Bathrooms Half: 1
  • Bathrooms Total Integer: 4
  • Bedrooms Total: 4
  • Rooms Total: 8

Other

Location

  • Subdivision Name: Flatiron
  • Tax Block: 01824
  • Tax Lot: 0016

Schools

Elementary School

  • Elementary School District: Contact Agent

High School

  • High School: Contact Agent
  • High School District: Contact Agent

Frequently Asked Questions

How many bedrooms and bathrooms does this co-op have?

There are 4 bedrooms and 4 bathrooms in this co-op at 6 W 20TH Street 2.

What schools are nearby to 6 W 20TH Street 2?

Nearby schools include the Contact Agent High School.

How does 6 W 20TH Street 2 compare to other co-ops in Flatiron District?

This co-op is listed 42% above the average price for co-ops in Flatiron District and has been on the market for 83 less days than the typical home in this area.

What is the square footage on this co-op?

According to the MLS, this listing is 4,400 sqft.

6 W 20TH Street 2 is a 4-bedroom, 4-bath co-op for sale in New York (Manhattan) NY 10011. Available on Prevu for 29 days at $5,500,000. This residence features 4,400 square feet of living space, located in Flatiron District. The median listing price for co-ops in this area is $3,447,500. Nearby schools include Contact Agent High School. Property amenities include private outdoor space. Browse more co-op listings in Manhattan.

The data relating to real estate for sale on this website comes in part from the IDX Program of OneKey™ MLS. The source of the displayed data is either the property owner or public record provided by non-governmental third parties. It is believed to be reliable but not guaranteed. This information is provided exclusively for consumers’ personal, non-commercial use. Information Copyright 2026, OneKey™ MLS. All Rights Reserved.

Full MLS Disclaimers

Rebate estimate is indicative only and based on listing price and estimated buyer's agent commission paid by owner, if applicable. Final rebates are subject to Terms of Use and may vary due to final negotiated transaction terms.