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139 East 66th Street
Last updated on Feb 4, 2026

139 East 66th Street

139 East 66th Street is a pre-war co-op building in Manhattan's Upper East Side, built in 1918 and converted in 1986. The 9-story building contains 22 units and offers amenities such as a part-time doorman, basement storage, and an elevator. Currently, 3 apartments are for sale.

139 East 66th Street Location Map
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Overview of 139 East 66th Street

139 East 66th Street is a pre-war co-op building in the Upper East Side's Lenox Hill neighborhood finished in 1918 and converted in 1986. Situated at 139 East 66th Street, between Lexington Avenue and Third Avenue, the building contains 22 units and rises 9 stories. The elevatored building's amenities include: part-time doorman, basement storage and elevator.

Doorman
Part Time
Type
Co-op
Year Built
1918
Converted: 1986
Apartments
Floors
9
Pets: Allowed
Neighborhood
Min Down
50%

Amenities

  • Attended Lobby
  • PT Doorman
  • Pre War
  • Resident Storage
  • Elevator
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  1. 6
at Lexington Ave 0.12 miles
  1. F
at Lexington Ave and 63rd 0.17 miles
  1. N
  2. Q
  3. R
  4. 4
  5. 5
at 3rd Ave and 60th 0.31 miles

Sales History

Price/Room (Est)

Why are we displaying the estimated price per room?

For some co-ops, instead of price per square foot, we use an estimate of the number of rooms for each sold apartment to chart price changes over time. This is because many co-op listings do not include square footage information, and this makes it challenging to calculate accurate square-foot averages.

By displaying the price per estimated room count, we are able to provide a more reliable and consistent metric for comparing sales in the building. While we hope that this gives you a clearer sense of price trends in the building, all data should be independently verified. All data provided are only estimates and should not be used to make any purchase or sale decision.

Price/Ft2 (Est)
View Full Closing History

Sales Summary

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Sales History by Apartment Size

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Pricing Comparison of Similar Buildings

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