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The O'Neill Building

655 Sixth Ave, 5-B

Manhattan | West 20th Street & West 21st Street

Loft 6 Rooms3 Beds3.5 Baths2,989 Square FeetCondo

$5,795,000
Common Charges$5,624
RE Taxes$4,861
Price Per SF
$1,939

Listing Features

  • Abundant Closets
  • Corner Apartment
  • Entry Foyer
  • High Ceilings [14']
  • Separate Dining Area
  • Storage Closet
  • Walk-in Closet
  • Washer / Dryer
  • Oversized Windows
  • Adjoining Pantry
  • Dishwasher
  • Eat-in Kitchen
  • Gourmet Kitchen
  • S Steel Appliances
  • Windowed Kitchen
  • Double Vanity
  • En Suite Bathroom
  • Marble Bathroom
  • Powder Room
  • Soaking Tub

Outdoor space and views

  • City Views
  • East Exposure
  • North 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, 5-B

Residence 5B at The O'Neill Building is a grandly scaled three-bedroom, three-and-a-half-bathroom corner loft offering 2,989 square feet, soaring 12-foot ceilings, and 28 oversized windows across three exposures. Positioned along the north, east, and west corners of the building, the residence is defined by exceptional volume, natural light, and an expansive layout centered around a dramatic turreted great room.

The great room serves as the centerpiece of the home, with proportions that comfortably accommodate multiple seating areas and a substantial formal dining space. Oversized windows frame open city views while original cast-iron columns and wide-plank hardwood floors preserve the character of the building's historic loft architecture.

The windowed eat-in kitchen offers generous storage and flows directly into the main living and dining spaces. Adjacent to the kitchen are a large pantry and dedicated laundry room. A gracious entry foyer, powder room, and multiple storage closets further enhance the functionality of the home.

The corner primary suite offers north and west exposures, a substantial custom walk-in closet, and a windowed en-suite bath with soaking tub, separate shower, dual vanity, and marble finishes. Two additional bedrooms are generously proportioned and each feature en-suite baths.

Originally built in 1887 as the Hugh O'Neill Dry Goods Store and reimagined by CetraRuddy as a boutique condominium, The O'Neill Building is one of Flatiron's most distinctive architectural landmarks. The full-service condominium offers a 24-hour doorman, concierge, and a 4,000-square-foot common roof deck with an outdoor kitchen.

Located at the intersection of Flatiron and Chelsea, the building is moments from Madison Square Park, Union Square, Whole Foods, Eataly, and some of downtown Manhattan's leading dining, shopping, and cultural destinations, with convenient access to multiple subway lines.

A grand-scale Manhattan loft with the space, light, and architectural presence to match.


Listing History for 655 Sixth Ave, 5-B

Now
10/14/2026
Contract Signed by Ofier Sarfaty
Serhant LLC
09/15/2026
$5,795,000
Initial Price by Ofier Sarfaty
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
$1,939
$5,795,000
$5,795,000
Last 12 months
$1,849
-
-
$118
$15,900
$15,900
Last 12 months
$105
-
-

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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: 188413