Avison Young, as the exclusive agent, is pleased to offer for sale 668 Sixth Avenue, a 4-story walk-up building featuring 20’ of frontage on the east side of Sixth Avenue between West 20th and 21st Streets in Flatiron District. The Property spans approximately 6,673 ± square and consists of two (2) commercial spaces on the first and second floor with two (2) residential units above. The ground floor retail space is occupied by fast-casual restaurant, Madras Dosa Co. through 2035 while the second-floor retail space is occupied by Xcellent Nail Salon through 2028. Both residential units are in good condition and configured as oversized two-bedroom, one bathroom units with excellent natural light, recessed lighting and exposed brick. Each unit features bedrooms with western sun exposure and ample closet space, while open kitchens flow into spacious living areas, creating efficient and highly functional layouts suitable for a wide range of renters. The units also present a valueadd opportunity with the potential to convert to three
bedrooms and increase rents substantially.
Active
$5,500,000
668 6th Ave, New York, NY 10010
4beds
6,673sqft
Mixed Use
Built in 1920
-- sqft lot
$5,366,400 Zestimate®
$824/sqft
$-- HOA
What's special
Exposed brickExcellent natural lightRecessed lightingAmple closet space
- 239 days
- 489
- 9
Zillow last checked:
Listing updated:
Listed by:
Avison Young New York LLC 718-581-4629,
David Shalom,
Miles Davis-Bosch
Source: StreetEasy,MLS#: S1806101
Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 4
- Bathrooms: 4
- Full bathrooms: 2
- 1/2 bathrooms: 2
Cooling
- Central Air
Appliances
- Included: Dishwasher
Features
- Flooring: Hardwood
- Has fireplace: Yes
Interior area
- Total structure area: 6,673
- Total interior livable area: 6,673 sqft
Property
Features
- Patio & porch: Other, Terrace
- Exterior features: Courtyard, Garden, Terrace
Details
- Special conditions: Resale
Construction
Type & style
- Home type: SingleFamily
- Property subtype: Mixed Use
Condition
- Year built: 1920
Community & HOA
Community
- Subdivision: Flatiron
Location
- Region: New York
Financial & listing details
- Price per square foot: $824/sqft
- Annual tax amount: $154,008
- Date on market: 1/12/2026
Estimated market value
$5,366,400
$5.10M - $5.63M
Not available
Price history
| Date | Event | Price |
|---|---|---|
| 5/4/2026 | Price change | $5,500,000-9.1%$824/sqft |
Source: StreetEasy #S1806101 Report a problem | ||
| 1/12/2026 | Listed for sale | $6,050,000$907/sqft |
Source: StreetEasy #S1806101 Report a problem | ||
Public tax history
Tax history is unavailable.







