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434 West 20th Street 9New York, NY 10011

For Sale

$900,000

Smart Buyer Rebate $10,000

Pre–Civil War Chelsea brownstone with a private roof terrace

THE SPACE:
This top-floor one-bedroom is full of light with windows in every room. It has 10-foot ceilings, a skylight, and an open kitchen with a breakfast bar perfect for a home cook. It also has a wood-burning fireplace that anchors the living area. French doors open to a quiet south-facing bedroom with treetop views, a walk-in closet and extra storage. The en-suite bath also gets southern light and has a windowed shower.

Other features include split-system air conditioning, two entry closets, a mudroom area and a private basement storage unit. The building is a well-kept, self-managed co-op with seven units in a walk-up. It offers a video intercom and a laundry room with a free washer and dryer.

THE PRIVATE ROOF:
A spiral staircase leads up to the home's standout feature: a private roof terrace nearly as large as the apartment itself, something rarely found in Chelsea. It has sweeping skyline views from Hudson Yards to the Empire State Building, with room to dine, lounge and entertain. The terrace comes fully furnished, with electricity and water, and works as a true extension of the living space, from morning coffee to sunset gatherings.

THE BLOCK:
Set on one of Chelsea's most storied blocks, the home faces the gardens and Gothic Revival spires of the General Theological Seminary, which has stood on land donated by Clement Clarke Moore since the 1820s. With no stores, leafy trees and a row of historic 19th-century townhouses, the street feels like a quiet retreat, yet the High Line is just steps away.

MERRILL HOUSE HISTORY:
Built in 1857 for William H. Merrill, a jeweler whose firm was Merrill, Fitch & Allin, this brownstone townhouse has lived many lives. It was home to an NYPD Harbor Unit captain and an architect, then a boarding house for Chelsea's young working women, before being renovated into apartments in 1982.

To maintain its intimate, shareholder-run character, the co-op does not permit subletting, pied-à-terre use, co-purchasing or gifting. Financing up to 80% is allowed. 3rd floor walkup.

Listed by FRANK J GIORDANO

·

CHARNEY REAL ESTATE LLC

·

(845) 797-4749

Listed by Phillip Wang

·

CHARNEY REAL ESTATE LLC

Last updated October 30, 2026

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Source: REBNY #RLS20118606

RLS Data display by Prevu Real Estate LLC

Listing Facts

  • TypeCo-op
  • NeighborhoodChelsea
  • Bedrooms1
  • Bathrooms1
  • Days on Prevu36
  • HOA/Maint. Fees$2,015/month

Amenities

  • Dishwasher
  • Pets Allowed

Location

Mortgage Calculator

Listing History

10/26/2026
Price Decreased
$900,000
09/25/2026
Listed by CHARNEY REAL ESTATE LLC
$950,000
  1. 10/26/2026$900,000
    Price Decreased
  2. 09/25/2026$950,000
    Listed by CHARNEY REAL ESTATE LLC

Estimated Closing Costs

Attorney Fees
$4,000
Bank Attorney
$1,500
Other Closing Costs
$4,000
Total
$9,500

Estimated closing costs are based on the list price of $900,000 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 434 West 20th Street 9

Association

Amenities

  • Pets Allowed: Building Yes, Yes

Fees

  • Association Fee: $2,015.00 Monthly

Financial

  • Flip Tax Remarks: Call Listing Agent

Exterior

Construction

  • Number Of Units Total: 7
  • Stories Total: 5
  • Structure Type: High Rise
  • Year Built: 1857

Features

  • View: City, Skyline

Measurements

  • Building Area Total: 11,125
  • Building Area Units: SquareFeet
  • Lot Size Dimensions: 25
  • Lot Size Units: SquareFeet

Financial

Taxes

  • Parcel Number: 0717-0061-00434-000-0000009

Interior

Features

  • Appliances: Dishwasher
  • Fireplace Features: Family/Living/Great Room
  • Fireplace: Yes
  • Fireplaces Total: 1
  • Interior Features: Breakfast Bar, High Ceilings, Storage, Walk-In Closet(s)

Measurements

  • Living Area Units: SquareFeet

Rooms

  • Bathrooms Full: 1
  • Bathrooms Total Integer: 1
  • Bedrooms Total: 1
  • Rooms Total: 3

Other

Location

  • City Region: Manhattan
  • Subdivision Name: Chelsea
  • Tax Block: 00717
  • Tax Lot: 0061

Frequently Asked Questions

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

There is 1 bedroom and 1 bathroom in this co-op at 434 West 20th Street 9.

Are pets allowed at 434 West 20th Street?

Yes, 434 West 20th Street allows pets.

How does 434 West 20th Street 9 compare to other co-ops in Chelsea?

This co-op is listed 37% below the average price for co-ops in Chelsea and has been on the market for 75 less days than the typical home in this area.

434 West 20th Street 9 is a 1-bedroom, 1-bath co-op for sale in New York NY 10011. Available on Prevu for 36 days at $900,000. This includes a recent price decrease of $50,000. This home is located in Chelsea. The median listing price for co-ops in this area is $1,750,000. The home offers dishwasher and pets allowed. Browse more co-op listings in Manhattan.

RLS Data display by Prevu Real Estate LLC The Registrant acknowledges each other RLS Broker's ownership of, and the validity of their respective copyright in, the Exclusive Listings that are transmitted over the RLS. The information is being provided by RLS at REBNY Listing Service, Inc. Information deemed reliable but not guaranteed. Information is provided for consumers' personal, non-commercial use, and may not be used for any purpose other than the identification of potential properties for purchase. This information is not verified for authenticity or accuracy and is not guaranteed and may not reflect all real estate activity in the market. 2026 RLS at REBNY Listing Service, Inc. All rights reserved. Based on information from the Real Estate Board of New York and/or other sources. This information is not verified for authenticity or accuracy and is not guaranteed and may not reflect all real estate activity. 2026 The Real Estate Board of New York, Inc., 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.