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311 E 71st St

311 E 71st St

311 E 71st St
Cooperative Building
New York, NY 10021
The Costar Building Rating

A rating for the building relative to other buildings of the same type throughout the country. Learn more

96 Units
13 Stories
1962 Year Built
$403K - $1.2M Value Range

Available Units

For Sale
For Rent
No Units Available

Highlights

  • City View
  • P.S. 183 - Robert L. Stevenson Rated A
  • Garage
  • Laundry Facilities
  • High-Rise Condominium
  • 4 min walk to St. Catherine's Park

A mid-century co-op in the heart of Lenox Hill

311 E 71st Street, known as The Diplomat, stands as a testament to mid-20th century urban living in Manhattan's Upper East Side. Completed in 1962, this 13-story co-op building houses 96 units, offering residents a blend of classic New York City living with modern conveniences. Situated in the desirable Lenox Hill neighborhood, The Diplomat provides easy access to the area's renowned medical facilities, upscale shopping, and cultural attractions. The building's straightforward design reflects the utilitarian aesthetic of its era, while its prime location and array of amenities cater to the needs of today's discerning residents.

Versatile layouts from cozy studios to spacious four-bedrooms

The Diplomat offers a diverse range of floor plans to suit various lifestyles and needs. Studios, starting at 450 square feet, provide efficient living spaces perfect for singles or pied-à-terre buyers. One-bedroom units, ranging from 500 to 1,100 square feet, are available from $480,000 to $500,000, offering ample space for young professionals or couples. For those seeking more room, two-bedroom apartments span 1,250 to 1,500 square feet and are priced around $1,140,000. These units often feature spacious living areas and updated kitchens with stainless steel appliances and marble countertops. Three-bedroom options, with sale prices around $1,740,000, provide even more space for families or those who desire extra rooms for home offices or guest accommodations. The most expansive offerings are the four-bedroom units, approximately 2,800 square feet in size, perfect for larger families or those who enjoy entertaining. Many apartments in The Diplomat have been thoughtfully renovated, featuring hardwood floors, custom built-ins, and elegant finishes. Some units boast unique features such as wraparound terraces or private patios, offering coveted outdoor space in the heart of the city. Regardless of size, many apartments in The Diplomat enjoy abundant natural light through oversized windows, with some offering picturesque city views. The building's flexible policies allow for customization, with some residents combining units to create larger, more personalized living spaces.

Modern conveniences with a touch of luxury

The Diplomat offers a range of amenities designed to enhance the living experience of its residents. The building's crown jewel is its professionally landscaped private patio, providing a serene outdoor retreat amidst the urban landscape. Some units even feature private wraparound terraces, offering exclusive outdoor spaces with panoramic city views. Security and convenience are prioritized with a doorman on duty from 7 am to 1 am daily, complemented by a live-in superintendent for prompt assistance with building matters. The recently renovated laundry room offers modern facilities for residents' convenience. For those with storage needs, the building provides both storage lockers and bike storage options. Car owners will appreciate the on-site garage, a rarity in many Manhattan buildings. Two elevators ensure smooth vertical transportation throughout the 13 stories. The Diplomat's amenities extend to practical services as well. A handyman is available for minor repairs and maintenance. These thoughtful touches contribute to a comfortable and hassle-free living environment in one of New York City's most coveted neighborhoods.

Lenox Hill: A blend of upscale living and cultural richness

The Diplomat's location in Lenox Hill places residents in the heart of one of Manhattan's most desirable neighborhoods. Known for its tree-lined streets, world-class medical facilities, and proximity to Central Park, Lenox Hill offers a perfect balance of urban convenience and residential charm. Culinary enthusiasts will delight in the neighborhood's diverse dining scene. Just steps away, JG Melon serves up some of the city's most beloved burgers in a classic New York setting. For those craving international flavors, Boqueria offers Spanish tapas in a lively atmosphere, while Tacombi brings the vibrant tastes of Mexico to the Upper East Side. Shopping options abound, with the iconic Bloomingdale's flagship store a short distance away. For everyday needs, residents can find everything from gourmet ingredients at Grace's Market to home essentials at the nearby Target. The area also boasts a number of boutique shops, offering unique finds and luxury goods. Green spaces are plentiful, with the expansive Central Park just a few blocks to the west. Closer to home, St. Catherine's Park provides a charming local retreat with its playground and recreational facilities. The East River Promenade offers scenic waterfront views and a perfect spot for jogging or leisurely walks. Cultural attractions in the vicinity include world-renowned museums like The Frick Collection, set to reopen after extensive renovations. The neighborhood's proximity to some of Manhattan's best private and public schools, including the Lycée Français de New York, makes it an attractive option for families. The area's character is defined by its mix of prewar and postwar buildings, elegant townhomes, and tree-lined streets, creating a sophisticated yet welcoming ambiance that has long attracted a diverse mix of residents, from young professionals to established families.

Effortless connectivity to Manhattan and beyond

The Diplomat's location offers residents excellent transportation options, making it easy to navigate both the neighborhood and the wider city. The recently completed Second Avenue Subway has significantly enhanced the area's accessibility, with the 72nd Street station just a short walk away, providing Q train service for swift travel up and down Manhattan's east side. For those preferring the Lexington Avenue line, the 68th Street-Hunter College station is within easy walking distance, offering access to the 4 and 6 trains. This puts Midtown, the Financial District, and other key areas of Manhattan within quick reach. The building's proximity to major crosstown buses on 72nd Street provides convenient east-west transit options, ideal for reaching Central Park or the Upper West Side. For those venturing further afield, the nearby FDR Drive offers quick access to the city's airports and other outer boroughs. Cyclists will appreciate the area's bike-friendly nature, with numerous Citi Bike stations in the vicinity and easy access to the East River Greenway for scenic rides along the waterfront. The neighborhood's high walkability means that many daily errands and activities can be accomplished on foot, adding to the area's appeal for those who prefer an active, urban lifestyle. This comprehensive network of transportation options ensures that residents of The Diplomat can easily explore all that New York City and its surrounding areas have to offer, while enjoying the comfort and convenience of their Upper East Side home.

Available Co-ops

No units matching this criteria are available right now.

Building Details

Amenities

  • City Views
  • Laundry Facilities

Parking

  • Garage

Condo Association

  • $1,692 Monthly HOA Fees
  • Monthly HOA Fees Range from $1,391 - $2,929

Building Design

  • Co-Op
  • High-Rise Condominium

Unit Information

Unit
2B
2D
8E
8G
Beds
1 Bed
--
--
2 Beds
Baths
1 Bath
1 Bath
1 Bath
2 Baths
Sq Ft
700
0
--
--
Price
$695,000
$375,000
$333,000
$999,000
Price / Sq Ft
$993 / Sq Ft
--
--
--
List Date
05/16/2025
05/01/2025
11/06/2023
02/12/2025

Unit Size and Value Ranges

Studio Units
Sq Ft Range
None Available
Est. Values
$402,739 - $473,322
1 Bedroom Units
Sq Ft Range
700 - 900
Est. Values
$431,224 - $1,064,597
2 Bedroom Units
Sq Ft Range
1,200
Est. Values
$461,000 - $1,017,839
3 Bedroom Units
Sq Ft Range
None Available
Est. Values
$462,000 - $1,226,821
4 Bedroom Units
Sq Ft Range
None Available
Est. Values
$461,000
All Units
Sq Ft Range
700 - 1,200
Est. Values
$402,739 - $1,226,821

Map

Area Factors

Low Crime

Crime Score®

2 / 10

Very Bikeable

Bike Score®

84 / 100

Walker's Paradise

Walk Score®

100 / 100

Rider's Paradise

Transit Score®

100 / 100
Sources: WhatIsMyCrimeRisk.com, Walk Score
Sources: WhatIsMyCrimeRisk.com, Walk Score

WhatIsMyCrimeRisk.com, Powered by CAP Index provides objective, accurate, and consistent data to help measure, compare, and mitigate crime risks. Walk Score® measures the walkability of any address. Transit Score® measures access to public transit. Bike Score® measures the bikeability of any address.

Environmental Factors

Busy

Sound Score®

61 / 100

--

Air Pollution®

N/A / 10

--

Flood Factor®

N/A / 10

--

Fire Factor®

N/A / 10

--

Heat Factor®

N/A / 10

--

Wind Factor®

N/A / 10
Source: First Street, How Loud
Sources: First Street, How Loud

Sound Score® measures the noise level of any address. Environmental risk data is provided by First Street Foundation® and is designed to approximate risk and not intended to include all possible scenarios.

Parks in this Area

Schools

Source:
GreatSchools: The GreatSchools Rating helps parents compare schools within a state based on a variety of school quality indicators and provides a helpful picture of how effectively each school serves all of its students. Ratings are on a scale of 1 (below average) to 10 (above average) and can include test scores, college readiness, academic progress, advanced courses, equity, discipline and attendance data. We also advise parents to visit schools, consider other information on school performance and programs, and consider family needs as part of the school selection process. View GreatSchools Rating Methodology
Disclaimer: Please note that this building may not be in these schools' attendance zones.

Agents Active in this Area

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Property Tax History

Source: Public Records

Similar Condominium Buildings

Building Website

Building Team

Property Management
Maxwell Kates - 311 E 71st St
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