434 W 20th Street #7
MLS® #RLS20084568
Listing by Sothebys International Realty
1
Bedroom
1
Bath
N/A
Sq. Ft.
1855
Year Built
Quick Summary
Property Highlights
- Exposure: South,West facing
- Fireplace: 1 fireplace
- Character: Pre-war building (1855)
Property Details
Listing History
| Event | Date | Price | Change |
|---|---|---|---|
| Listed | Apr 15, 2026 | $595,000 | - |
| Currently | Jul 15, 2026 | $545,000 | -8.4% |
Description
First time available in nearly 50 years. Located on Chelsea's coveted Seminary Row, this authentic one-bedroom apartment is one of just seven residences in an Italianate brownstone built in 1856. Owned by the same family for nearly half a century, the apartment retains the warmth, scale, and architectural character that make historic Chelsea brownstones so enduringly desirable. Just two flights up, this charming one-bedroom enjoys both western and southern exposures, filling the home with warm light. Soaring 10-foot ceilings, original hardwood floors, and a beautifully preserved fireplace create an inviting living space that feels both elegant and comfortable. The entry foyer with two closets provides excellent storage, while the bedroom offers a step-in closet, overhead storage, and a windowed bath. An additional private storage unit transfers with the apartment. The apartment is being offered in as-is condition, presenting an exceptional opportunity for a purchaser to restore, update, or personalize the home while preserving its authentic prewar character. Please note that some images are virtually staged. Located on Seminary Row, one of Chelsea's most picturesque blocks, you're just one block from the High Line and moments from Chelsea's renowned galleries, restaurants, cafés, Chelsea Piers, Hudson River Park, and multiple subway lines including the A/C/E, L, and 1/2/3. The boutique, self-managed cooperative offers complimentary laundry, video intercom, and attentive shareholder stewardship. To preserve the character of the building, subletting, pied-à-terre ownership, co-purchasing, and gifting are not permitted. Apartment 7 may also be purchased together with Apartment 9, located directly above, creating a rare opportunity to combine two residences in one of Chelsea's finest historic brownstones. Please contact the exclusive listing agents to schedule a private showing.
Features & Amenities
Interior Features
Building Information
Financial Details
About Chelsea
View All Chelsea ListingsChelsea is the epicenter of New York’s contemporary art world and a hub for innovative architecture. Home to the High Line and Chelsea Market, the neighborhood mixes industrial history with modern luxury. The real estate market here is dominated by high-end condominium developments designed by world-renowned architects, alongside historic pre-war lofts and historic townhouses in the Chelsea Historic District.
Chelsea Live Market Data
View NeighborhoodActive Listings
302
Median Asking Price
$1.71M
Median $/Sqft
$1,866
Avg Days on Market
N/A
New This Week
8
Price Reduced
40%
Sold (30 Days)
42
Median Sale Price
$1.65M
Live data from RLS at REBNY • Updated 7/15/26, 1:57 AM EST
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Location
434 W 20th Street #7, Chelsea, New York County
Floor Plans
Building Information
Official NYC property records for this building
Tax & Assessment
Note: Individual unit taxes may differ. Verify current tax bills with NYC DOF.
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
Listing Data
RLS® at REBNY (Real Estate Board of New York) via Trestle API. Updated in real-time.
Building Data
NYC PLUTO (Primary Land Use Tax Lot Output), NYC Department of City Planning. Updated quarterly.
Market Data
RLS® at REBNY (Real Estate Board of New York). Live data updated in real-time.
Map & Location
OpenStreetMap contributors via Leaflet. Geocoding via Nominatim.
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Frequently Asked Questions
Common questions about this property
The current listed monthly maintenance are $1,815 per month. Confirm the exact amount with the listing broker before making an offer.
The current listed annual property tax is $0, or roughly $0 per month. Verify the current assessment with your attorney before closing.
This property has 1 bedroom and 1 full bathroom.
According to MLS records, the building was constructed in 1855, making it approximately 171 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.
Pet policy requires confirmation with the listing broker. Additional notes: No pets.,Building Pets Allowed Comments:No pets.
To schedule a private showing, contact Milton Coste at (917) 416-7433 or [email protected]. 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) 416-7433Listing Courtesy of Sothebys International Realty - Kathryn A Swift
Listing Contact: (212) 810-4955
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 Data display by Keller Williams NYC. Data last updated on 7/15/2026 at 5:57 AM UTC