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340 East 51st Street
340 East 51st Street
340 East 51st Street
340 East 51st Street
340 East 51st Street
340 East 51st Street
340 East 51st Street
Last updated on Apr 3, 2026

Stonehenge 51,
340 East 51st Street

Doorman Rental located in Midtown East, between First Avenue & Second Avenue
340 East 51st Street Location Map

Overview of Stonehenge 51 at 340 East 51st Street

Stonehenge 51 is a 14 story, 115 unit post-war rental at 340 East 51st Street in Midtown East. Also known as Allen House, the red brick building was designed by Sidney Goldhammer and completed in 1965. Its street frontage is marked by a canopy and polished black granite entrance surround, with the entrance set four steps below grade.

Apartments range from studios and one bedroom layouts to larger configurations, with separate kitchens, hardwood or parquet floors, and ample closet space recurring in many homes. Several south facing apartments overlook the rear courtyard or neighboring townhouse gardens. The building's most distinctive residence is a four bedroom duplex with nearly 3,000 square feet inside and about 2,500 square feet across three terraces, along with floor-to-ceiling windows framing city and river views.

The building has a 24 hour doorman, live-in superintendent, central laundry room, fitness room, and lounge. Its mid-block East 51st Street address is west of Beekman Place and Sutton Place, with the United Nations complex to the south.

Doorman
Full Time
Type
Rental
Year Built
1965
Apartments
Floors
14
Neighborhood

Amenities

  • FT Doorman
  • High-Rise
  • Post War
  • Washer/Dryer in building
  • Elevator
  • Terraces / Balconies
Stonehenge 51 building photo 1
Stonehenge 51 building photo 2
Stonehenge 51 building photo 3
Stonehenge 51 building photo 4
Stonehenge 51 building photo 5
Stonehenge 51 building photo 1
Stonehenge 51 building photo 2
Stonehenge 51 building photo 3
Stonehenge 51 building photo 4
Stonehenge 51 building photo 5
Stonehenge 51 building photo 6
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  1. M
  2. 6
  3. E
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

18
/44
Architecture
+
24
/36
Location
+
9
/39
Features
+
8
Editor’s Points
=
59
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

Editorial Coverage

Alternate Addresses

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