Last updated on Apr 3, 2026

Stonehenge 51,
340 East 51st Street

This red-brick apartment building, known as Allen House, was erected in 1965 and designed by Sidney Goldhammer. The 13-story building features a doorman, canopied entrance, and is conveniently located near the United Nations, Beekman Place, and Sutton Place.

Overview of Stonehenge 51 at 340 East 51st Street

Stonehenge 51, also known as Allen House, is a red-brick apartment building located at 340 East 51st Street in Midtown East, New York City. Designed by Sidney Goldhammer and erected in 1965, this 13-story building features a polished black granite entrance surround and a canopied entrance with a doorman. The building is conveniently situated near the United Nations, Beekman Place, and Sutton Place, with excellent cross-town bus service and numerous nearby restaurants.

The building offers a range of amenities, including a 24 hour doorman, elevator, on-site laundry, a lounge, and a gym. Apartments in Stonehenge 51 vary from studios to spacious duplexes, with features such as separate kitchens, hardwood floors, and ample closet space. Some units offer stunning city views and have been recently renovated with modern finishes, including granite countertops and state-of-the-art appliances.

Notable apartment options include a unique four-bedroom duplex with nearly 3,000 square feet of interior space and approximately 2,500 square feet of outdoor space across three terraces. This apartment boasts floor-to-ceiling windows, providing panoramic city and river views, and includes a fully equipped laundry room and elegant bathrooms. The building maintains a no pet and no smoking policy, with diplomats considered on a case-by-case basis.

Overall, Stonehenge 51 provides a comfortable and convenient living experience in a desirable Midtown East location, with easy access to multiple subway lines, including the 4, 5, 6, E, M, N, R, W, and 7 trains. The building's recent renovations and full-service amenities make it an attractive option for those seeking a rental in this vibrant neighborhood.

Doorman

Full Time

Type

Rental

Year Built

1965

Apartments

115 (view all units)

Floors

Neighborhood

Midtown East (Manhattan)

Maps &
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Amenities

FT Doorman
High-Rise
Post War
Washer/Dryer in building
Elevator
Terraces / Balconies

Area Map StreetView

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at Lexington Ave and 53rd 0.23 miles

Pros & Cons

Doorman
Polished black granite entrance surround
Some terraces
Discrete air-conditioners
Good bus service
Canopied entrance
Close to Subway

No garage
Many apartments
No sidewalk landscaping
Four-step-down entrance

CityRealty Rating

/44

Architecture

/36

Location

/39

Features

Editor’s Points

CITYREALTY
RATING

How is the CityRealty Rating calculated?
Architecture

30+ remarkable

20-29 distinguished

11-19 average

< 11 below average
Location

27+ remarkable

18-26 distinguished

9-17 average

< 9 below average
Features

22+ remarkable

16-21 distinguished

9-15 average

< 9 below average
CityRealty’s Ratings Explained

Building Management

Stonehenge NYC is recognized for its above-and-beyond customer service platform and five-star lifestyle programming.

More about Stonehenge NYC

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Editorial Coverage

Celebrity moves of September 2019: NYC homes linked to Bette Midler, Tommy Hilfiger, and Wendy Williams Tuesday, October 1, 2019

Alternate Addresses

332 East 51st Street
334 East 51st Street
336 East 51st Street
338 East 51st Street

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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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Stonehenge 51,340 East 51st Street

Overview of Stonehenge 51 at 340 East 51st Street

Maps &3D Aerial Views

Amenities

Pros & Cons

CityRealty Rating

How is the CityRealty Rating calculated?

Building Management

Pricing Comparison of Similar Buildings

Editorial Coverage

Alternate Addresses

Search

Market Data

Market Insight

CityRealty

My Account

Stonehenge 51,
340 East 51st Street

Maps &
3D Aerial Views