Updated 11 hours ago
In contract

The O'Neill Building

655 Sixth Ave, PH-B

Chelsea, Manhattan | West 20th Street & West 21st Street

Loft 8 Rooms4 Beds3.5 Baths4,819 Square FeetCondo

$12,250,000
Common Charges$8,388
RE Taxes$7,046
Price Per SF
$2,542

Listing Features

  • Abundant Closets
  • Dressing Area
  • Duplex
  • Entry Foyer
  • Family Room
  • Galley Kitchen
  • High Ceilings [14']
  • Home Office
  • Laundry Room
  • Penthouse/Top Flr
  • Recessed Lighting
  • Separate Dining Area
  • Walk-in Closet
  • Washer / Dryer
  • Oversized Windows
  • Wall of Windows
  • Adjoining Pantry
  • Center Island
  • Dishwasher
  • Eat-in Kitchen
  • Microwave
  • S Steel Appliances
  • Service Entrance
  • Double Vanity
  • En Suite Bathroom
  • Powder Room
  • Soaking Tub
  • Stall Shower

Outdoor space and views

  • Balcony
  • Juliet Balcony
  • Terrace
  • Chrysler Building
  • City Views
  • Empire State Bldg
  • Skyline Views
  • East Exposure
  • North Exposure
  • South Exposure
  • West Exposure

Building Amenities

  • Full Service
  • Elevator
  • Facility Kitchen
  • Roof Deck
  • Storage

Policies

  • Pets Allowed
  • Pieds A Terre Ok

Property Description for 655 Sixth Ave, PH-B

Occupying a prominent corner within the landmarked O'Neill Building, Penthouse B is a premier duplex residence that balances Gilded Age scale with contemporary architectural precision. Originally constructed in 1887 as a premier department store in the Ladies' Mile historic district, the building was reimagined into a collection of luxury residences that retain the soaring volumes of its cast-iron heritage. This trophy home spans 4,819 square feet of interior space, complemented by a triple-terrace outdoor program totaling over 2,500 square feet.

The Great Room serves as the residence's focal point, spanning 53 feet in length and framed by over 220 linear feet of windows. High ceilings and a dual southern and eastern exposure provide superlative natural light and panoramic views of the Manhattan skyline. The layout is currently configured as a three-bedroom home but was originally designed for four true bedrooms, allowing for significant flexibility in how the space is utilized.

A signature element of the property is the historic gold-coated Neo-Grec cupola. One of only a handful remaining in New York, this 43-foot high belfry can be converted into a private media room or home office, offering a 360-degree architectural experience. The kitchen is designed for high-capacity entertaining, featuring a large center island, Viking and Sub-Zero appliances, a butler's pantry, and a separate breakfast room.

The upper level is dedicated to the primary suite, providing a secluded sanctuary with an oversized spa bath and two walk-in dressing rooms. This level opens onto a private terrace, one of three expansive outdoor spaces that wrap the home. Additional features include a private service entry, a dedicated 250-square-foot storage unit adjacent to the apartment, and a laundry room.

The O'Neill Building is a full-service condominium offering a 24-hour doorman, concierge, and a 4,000-square-foot common roof deck with an outdoor kitchen. Located in the heart of Chelsea, the building provides immediate access to the West Village and Flatiron, as well as many of the city's most established culinary and cultural destinations.


Video Walkthrough


Listing History for 655 Sixth Ave, PH-B

Now
07/16/2026
Contract Signed by Peter Ocean
Serhant LLC
05/26/2026
$12,250,000 [-$500,000] [3.9%]
Price Drop by Peter Ocean
Serhant LLC

Building Details for 655 Sixth Ave

OwnershipCondo
Building TypeLoft
Service LevelFull Service
AgePre-War
AccessElevator
Year Built1887
Financing Allowed90%
Floors/Apts7/49
Learn More About the Building

Transit and Citi Bike

Subway

23 St
0.13 miles
18 St
0.19 miles
23 St
0.21 miles
14 St
0.23 miles
23 St
0.25 miles

Citi Bike

W 21 St & 6 Ave
0.03 miles
W 18 St & 6 Ave
0.11 miles

Building Availability

APPSF
Median
Average
$2,159
$7,472,500
$7,472,500
Last 12 months
$1,628
-
-
Last 12 months
$105
-
-

Loft3+ Bedrooms in Chelsea

APPSF
Median
Average
$1,582
$7,125,000
$7,125,000
$2,125
$8,400,000
$8,400,000

Chelsea | Manhattan

Quick Profile

The row houses portray the world-class architecture of Greek Revival, Italianate and Georgian styles. The population is both ethnically and socially diverse, which is reflected in the restaurants and retail businesses in the neighborhood. 

Western Chelsea is the center of the NYC art world, where you will find more than 200 art galleries housed in rehabbed factories and warehouses, as well as in newly-constructed buildings.

While people of many different cultures call Chelsea home, it has been a mecca over the years for people in the LGBTQ community. One census reported that as many as 22% of its residents were gay couples. Eighth Avenue is a trendy area for LGBTQ-oriented dining and shopping. Although it no longer draws the LGBTQ population that it once did, Chelsea still has many popular alternative bars.  

Chelsea is primarily residential, consisting of a mixture of diverse complexes, low-rise apartment blocks, tenements, townhouses, renovated row houses, and luxury high-rises. 

Chelsea is an interesting and sought-after place to live, with unique clothing boutiques, restaurants, and delis representing cultures from around the world. In addition to its quirky establishments, Chelsea has fine dining restaurants and a vibrant, hip nightlife, which adds to its allure.

Chelsea is well-served by public transportation. At least six city bus routes traverse Chelsea. There are three NYC subway routes with stops on Seventh Avenue, three on Eighth Avenue, and two more on Sixth Avenue. The 34th Street - Hudson Yards Station opened in 2015 with its main entrance in Chelsea.  

All information furnished regarding property for sale, rental or financing is from sources deemed reliable, but no warranty or representation is made as to the accuracy thereof and same is submitted subject to errors, omissions, change of price, rental or other conditions, prior sale, lease or financing or withdrawal without notice. All dimensions are approximate. For exact dimensions, you must hire your own architect or engineer.
OLR ID: 188424