For Sale
House for sale at 323 E 21st Street #M-4, New York City, NY 10010 | MLS# RLS20104045 | Listing updated on 2026-07-28
Photo 1 of House for sale at 323 E 21st Street #M-4, New York City, NY 10010 | MLS# RLS20104045 | Listing updated on 2026-07-28
Photo 2 of House for sale at 323 E 21st Street #M-4, New York City, NY 10010 | MLS# RLS20104045 | Listing updated on 2026-07-28
Photo 3 of House for sale at 323 E 21st Street #M-4, New York City, NY 10010 | MLS# RLS20104045 | Listing updated on 2026-07-28
Photo 4 of House for sale at 323 E 21st Street #M-4, New York City, NY 10010 | MLS# RLS20104045 | Listing updated on 2026-07-28
9+
Beds Icon

Street View

$495,000

Monthly Est:$2,464

  • Beds Icon1 Bed
  • Beds Icon
    1 Bath
  • Beds Icon550sqft

323 E 21st Street #M-4, New York City, NY 10010

Get Pre-Approved

  • Apartment

  • Built in 1910

  • $1,838/mo HOA

  • -- sqft lot

  • $900/sq.ft

Description

Tucked away beyond a private courtyard is a rarely available one-bedroom home in a prewar co-op built in 1910 known as the Colonial Mews. A renovated windowed kitchen and en suite bathroom complement original details which preserve the apartment's charm, such as a decorative fireplace against exposed brick. With treetop views from both the living room and bedroom overlooking the courtyard to the South, and treetop views from the kitchen to the West, this corner apartment is uniquely private, as it is set back from the street. Additional features include two spacious closets, and thru-wall air-conditioning units in both the living room and bedroom.

Perhaps best of a
ll, there is a remarkably liberal sublet policy, rarely seen in co-ops. After two years of ownership, unlimited subletting is allowed with co-op board approval.

Kindly note that the apartment is located on the third floor of a non-elevator building (three flights up). Pets will be considered on a case-by-case basis. Shown exclusively by appointment only. Disclaimer: Some photos have been virtually staged.

  • Houzeo last checked: 12 hours ago
  • Listing updated: July 28, 2026 at 2:54 pm
  • Listing Provided by: Amanda Rosenberg (917) 923-3066 | The Heller Organization Inc (212) 366-5034
  • Source: Rebny MLS-NY | MLS#: RLS20104045 Rebny MLS-NY

This condo is in:

Property Details

  • Status

    Active

  • Type

    Condominium

  • No. of Stories

    5

  • County

    New York County

  • City

    New York City

  • Neighborhood

    --

  • Year Built

    1910

  • HOA Fees

    $1838/mo

  • Finished Area

    550 sqft

  • Lot Size

    -- sqft lot

  • Basement Area

    - sqft

  • MLS Name

    Rebny MLS

  • MLS Number

    RLS20104045

  • Days on Market

    110

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Location

HOA Management

N/A

HOA Fees

$1,838/ Monthly

Disclaimer: Amenities are based on third-party information and may vary; buyers must independently verify all amenities, as information is deemed reliable but not guaranteed.

Facts & Features

Rooms

  • Bedrooms & bathrooms

    Bedroom: 1

    Bathroom: 1

Interior

  • Exterior Features

    Building Garden

  • Interior Features

    Dining Area, Entrance Foyer, Kitchen Window

  • Cooling

    Wall Units

Construction

  • Year Built

    Year Built: 1910

  • Home type

    Apartment

  • Architectural Style

    Prewar, Walk Up

Utilities & Energy

  • Laundry Features

    Building Washer Dryer Install Allowed

  • Fireplace Features

    Decorative

Other Features

  • Subdivision Name

    Gramercy Park

Price History

DateEventPrice

07/16/2026

Source: mls_logoRebny MLS-NY #RLS20104045

Listed for Sale

$495,000

$900/sqft

The real estate listing data marked with this icon comes from the IDX program of the RLS at REBNY Listing Service (RLS). Listing information for certain New York City properties provided courtesy of the Real Estate Board of New York's Residential Listing Service (the "RLS") through Nov 02, 2026, 02:15PM. Information deemed reliable but not guaranteed. Information is provided exclusively for consumers' personal, non-commercial use, and may not be used for any purpose other than the identification of potential properties for purchase. 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. Buyer to verify all information. © 2026 The Real Estate Board of New York, Inc. All rights reserved.

Advertising Broker: Derek Greene | The Greene Realty Group

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