Carter's Review

The Mayfair, an 18-story, white-brick building, is located on a very attractive block in the heart of the Upper East Side. Built in 1960, it has 195 apartments and was converted to a cooperative in 1987. Its central location is convenient to transportation, especially the Q subway stop, and a wide range of stores, boutiques and restaurants.

The Mayfair is a full-service building with laundry on every other floor, a 24-hour doorman, a beautifully renovated lobby, storage units, a bike room, and a furnished roof deck with stunning views. Currently, there is an assessment of $256.32.

Co-op built in 1963
3 apartments currently for sale ($695K to $1.45M)
Located in Lenox Hill
195 total apartments 195 total apartments
10 recent sales ($435K to $910K)
Doorman
Pets Allowed

One United Nations Park

between East 39th Street & East 40th Street

Murray Hill

One United Nations Park is an unprecedented interplay of privacy and light—a balance that reflects the architecture’s bold exterior and luminous interiors.

2 beds starting at $3,695,000
3 beds starting at $6,150,000
4 beds starting at $4,870,000

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One United Nations Park - Exterior View - Building

One United Nations Park - Exterior/Interior View - Terrace and Living Room

One United Nations Park - Interior - Corner View - Living Room

One United Nations Park - Interior - Living Room - View of ESB

One United Nations Park - Interior View - Colorful Living Room

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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.

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