434 West 20th Street, a 25-foot-wide Italianate brownstone built in 1856, is located on one of Chelsea's most picturesque, tree-lined blocks within the Historic District, directly across from the beautifully landscaped gardens of the General Theological Seminary.
This bright, top-floor one-bedroom home features 10-foot ceilings, a skylight, and two west-facing windows that fill the space with natural light. The open kitchen offers generous cabinet and counter space, along with a convenient breakfast bar. A wood-burning fireplace adds warmth and character to the living area.
French doors lead to a tranquil bedroom with southern exposure, treetop views, a walk-in closet, and additional storage. The en-suite marble bathroom also enjoys southern light and features a windowed shower.
A spiral staircase leads to a truly exceptional private roof terrace-nearly the size of the apartment itself and a rare find in Chelsea. This expansive outdoor oasis offers sweeping skyline views, with ample space for dining, lounging, and entertaining. Fully furnished and equipped with electricity and water, it serves as a seamless extension of the home-ideal for everything from quiet mornings to sunset gatherings.
Additional features include split-system air conditioning, two entry closets, a mudroom area, and a dedicated basement storage unit.
This boutique, self-managed seven-unit walk-up co-op is well maintained and offers a video intercom system and a laundry room with complimentary washer and
dryer. As a small, shareholder-run building, policies are in place to preserve its intimate character; subletting, pied-à-terre ownership, co-purchasing, and gifting are not permitted. 80% financing allowed.
Can be combined with Unit 7 on the floor below, which is also available for sale.
Active
$975,000
434 W 20th St #9, Manhattan, NY 10011
1beds
--sqft
Coop
Built in 1850
-- sqft lot
$964,000 Zestimate®
$--/sqft
$2,014/mo HOA
What's special
Mudroom areaTreetop viewsWalk-in closetSplit-system air conditioningEn-suite marble bathroomWindowed showerConvenient breakfast bar
- 121 days
- 628
- 51
Zillow last checked:
Listing updated:
Listed by:
Brown Harris Stevens 917-543-3401,
Debra Pendleton,
Joseph Ulam
Source: StreetEasy,MLS#: S1826784
Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 1
- Bathrooms: 1
- Full bathrooms: 1
Appliances
- Included: Dishwasher
- Laundry: Inside
Features
- Flooring: Hardwood
- Has fireplace: Yes
- Fireplace features: Wood Burning
Property
Features
- Patio & porch: Deck
- Exterior features: Private Roof Deck
- Has view: Yes
- View description: City, Park/Greenbelt
Details
- Parcel number: 00717006110125949
- Special conditions: Resale
Construction
Type & style
- Home type: Cooperative
- Property subtype: Coop
Condition
- Year built: 1850
Community & HOA
Community
- Subdivision: West Chelsea
HOA
- Has HOA: Yes
- Amenities included: Laundry
- Services included: Maintenance
- HOA fee: $2,014 monthly
Location
- Region: Manhattan
Financial & listing details
- Date on market: 5/6/2026
Estimated market value
$964,000
$916,000 - $1.01M
$4,853/mo
Price history
| Date | Event | Price |
|---|---|---|
| 5/6/2026 | Listed for sale | $975,000+10.4% |
Source: StreetEasy #S1826784 Report a problem | ||
| 1/5/2021 | Sold | $883,000+0.9% |
Source: Public Record Report a problem | ||
| 9/27/2020 | Pending sale | $875,000 |
Source: Compass Report a problem | ||
| 9/8/2020 | Listed for sale | $875,000+19% |
Source: Compass Report a problem | ||
| 8/27/2012 | Sold | $735,000-1.9% |
Source: Public Record Report a problem | ||
| 5/26/2012 | Listing removed | $749,000 |
Source: The Corcoran Group #2096665 Report a problem | ||
| 5/4/2012 | Price change | $749,000-3.4% |
Source: The Corcoran Group #2096665 Report a problem | ||
| 2/10/2012 | Listed for sale | $775,000 |
Source: The Corcoran Group #2096665 Report a problem | ||
| 11/17/2011 | Listing removed | $775,000 |
Source: The Corcoran Group #2096665 Report a problem | ||
| 6/11/2011 | Listed for sale | $775,000-4.2% |
Source: The Corcoran Group #2096665 Report a problem | ||
| 4/25/2011 | Listing removed | $809,000 |
Source: The Corcoran Group #2096665 Report a problem | ||
| 4/8/2011 | Price change | $809,000-1.2% |
Source: The Corcoran Group #2096665 Report a problem | ||
| 3/30/2011 | Listed for sale | $819,000-1.9% |
Source: The Corcoran Group #2096665 Report a problem | ||
| 2/26/2011 | Listing removed | $835,000 |
Source: The Corcoran Group #2096665 Report a problem | ||
| 1/8/2011 | Price change | $835,000-1.8% |
Source: The Corcoran Group #2096665 Report a problem | ||
| 11/3/2010 | Listed for sale | $850,000-1.2% |
Source: The Corcoran Group #2096665 Report a problem | ||
| 3/21/2008 | Sold | $860,000 |
Source: Public Record Report a problem | ||
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2010 | -- | -- |
| 2009 | -- | -- |
| 2008 | -- | -- |
| 2007 | -- | -- |
Find assessor info on the county website





