166 East 78th Street: Apartments for Sale & Rent

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Last updated on Dec 10, 2025

166 East 78th Street

166 East 78th Street is a five-story, 10-unit prewar walkup cooperative on the Upper East Side. It is conveniently located near popular amenities and public transportation.

All Apartments For Sale (1)
Recent Sales (2) $792 Avg. price/ft²
All Units in Building (10)

Apt. 2B
Quick view: 9 photos

1 bed

1 bath

$695,000 in contract

May 13, 2024

637 days

in contract

#2B: $695,000 - 1 bed

Apt. 5A

1 bed

1 bath

$595,000 -8.5%

$650,000

Dec 8, 2025

Apt. 1B

1 bed

1.5 baths

1,073 ft²

$850,000 -14.6%

$792

$995,000

Aug 11, 2022

View Full Sales History

Overview of 166 East 78th Street

166 East 78th Street is a five-story, 10-unit prewar walkup cooperative on the Upper East Side. It is well situated near popular restaurants, shopping, entertainment, and the 77th Street 6 train.

Doorman

None

Type

Co-op

Year Built

1920

Converted: 1984

Apartments

10 (view all units)

Floors

Neighborhood

Lenox Hill (Manhattan)

Min Down

20%

Maps &
3D Aerial Views

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Amenities

Resident Storage

Area Map StreetView

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at Lexington Ave 0.06 miles

at Lexington Ave 0.43 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)

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Sales Summary

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Sales History by Apartment Size

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Pricing Comparison of Similar Buildings

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Editorial Coverage

One Domino Square

between South 3rd Street & South 4th Street

Williamsburg

Spectacular Living on the Williamsburg Waterfront. One to three-bed condos by Annabelle Selldorf with wonderful views of NYC. Over 45,000 SF of amenities | Immediate Occupancy

1 beds starting at $1,975,000
2 beds starting at $2,085,000
3 beds starting at $3,060,000

Learn More

RLS IDX Data display by CityRealty.com, LLC. This information is not verified for authenticity or accuracy and is not guaranteed and may not reflect all real estate activity in the market. ©2026 The Real Estate Board of New York, Inc., All rights reserved. IDX information is provided exclusively for consumers’ personal, non-commercial use and it may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing.

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 and for no listing shall the number of bedrooms listed be considered a legal conclusion.

All closed sales data has been provided by the New York City Department of Finance via the Automated City Register Information System (ACRIS). No warranty or representation is made as to the accuracy of any data provided by ACRIS or any other sources.

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An equal housing opportunity

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166 East 78th Street

Overview of 166 East 78th Street

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Amenities

Sales History

Why are we displaying the estimated price per room?

Sales Summary

Sales History by Apartment Size

Pricing Comparison of Similar Buildings

Editorial Coverage

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