Skip to Content
  • Apartments
  • Overview & Photos
  • Maps
  • Ratings & Insider Info
  • Floorplans
  • Sales Data & Comps
  • Similar Buildings
  • All Units
343 East 78th Street
Last updated on Jun 6, 2025

343 East 78th Street

343 East 78th Street Location Map
Unit #
Beds
Baths
Size
Closing Price
Price / Ft2
Asking Price
Sold on
View Full Sales History

Overview of 343 East 78th Street

343 East 78th Street was built in 1910 and converted to co-op apartments in 1984. 343 East 78th Street has a total of 12 apartments and is located in Lenox Hill, a short walk to the 6 subway line.

Similar nearby buildings include 408 East 73rd Street, 200 East 74th Street, 525 East 82nd Street and 310 East 70th Street. See more ->

Doorman
None
Type
Co-op
Year Built
1910
Converted: 1984
Apartments
Floors
5
Neighborhood
Min Down
20%
{ "key" : "AIzaSyDquABdSLhathmwfnoTcYwA1BY6coZZyZk", "lat": 40.77223, "lng": -73.95395, "marker": { "icon": "https://img3.cityrealty.com/neo/i/w/amenities/base.png" } }

  1. 6
at Lexington Ave 0.32 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

Show:

Sales History by Apartment Size

View Full Closing History
Show:

Pricing Comparison of Similar Buildings

View Detailed Comparison
The Elisa
between Seventh Avenue & Eighth Avenue
Chelsea
An inimitable lifestyle cultivated by Isay Weinfeld. European elegance at the intersection of the West Village, Meatpacking, & Chelsea. Premium location | 1H 2024 occupancy
Learn More