21 East 90th Street

21 East 90th Street Cooperative in Carnegie Hill, Manhattan

Highline Residential
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21 East 90th Street

21 East 90th Street

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Photo for 21 East 90th Street - 21 East 90th Street Cooperative in Carnegie Hill, Manhattan
Unit 2D | 3BD | 2BA Listing Courtesy of Corcoran Group | RLS by REBNY
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21 East 90th Street at 21 East 90th Street Building Details
Set on a pristine tree-lined block between Fifth and Madison Avenues, 21 East 90th Street is a distinguished full-service cooperative that exudes timeless Upper East Side charm. Built in the 1920s and nestled just a few steps from Central Park and the Guggenheim Museum, this elegant 15-story building captures the essence of refined Carnegie Hill living. Its stately limestone base, decorative masonry, and classic setbacks present a distinguished presence on the block, while the canopied entrance welcomes residents with a sense of exclusivity and grandeur.

Apartments in the building are generously scaled and feature classic six-, seven-, and eight-room layouts with graceful flow, grand foyers, wood-burning fireplaces, and soaring ceilings. Crown moldings, herringbone hardwood floors, and oversized windows are hallmarks of these homes, creating spaces filled with light and old-world sophistication. Many residences have been meticulously renovated, blending modern luxury with preserved pre-war detailing. Whether entertaining in a formal dining room or enjoying views over landmarked townhouses, residents are enveloped in a quiet, cultivated atmosphere.

The building is discreet yet luxurious, offering a highly desirable boutique co-op experience with white-glove service and unmatched access to cultural institutions, top schools, and the lush greenspaces of Central Park and the Reservoir. With just a handful of apartments per floor and a reputation for exclusivity, 21 East 90th Street is perfect for those who value privacy, tradition, and Upper East Side prestige.
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Are You an Owner Wanting to Rent or Sell Your Apartment?

21 East 90th Street Building Amenities
  • Bike room
  • Full-time doorman
  • Live-in superintendent
  • On-site laundry
  • Pets - Cats ok
  • Pets - Dogs ok
  • Elevator
  • Gym/Fitness
  • Storage
Active Listings & Units
21 East 90th Street Residences
Recent Activity at 21 East 90th Street
Apartment Floor Plans
Building Facts for 21 East 90th Street, New York 10128
  • Available Sales Listings: 1
  • Street Address: 21 East 90th Street, New York, NY 10128
  • Property Type: Cooperative
  • Elevator Building
  • Doorman: Full-time doorman
  • Neighborhood: Carnegie Hill / Manhattan
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Map Location of 21 East 90th Street and nearby points of interest
Map of the building location
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Alternate Addresses for 21 East 90th Street in NYC
  • 19 EAST 90 STREET
  • 21 EAST 90 STREET
  • 1260 MADISON AVENUE
  • 1262 MADISON AVENUE
  • 1264 MADISON AVENUE
  • 1266 MADISON AVENUE
21 East 90th Street is a Cooperative in Carnegie Hill, Manhattan, located at 21 East 90th Street, New York 10128.

Frequently asked questions about 21 East 90th Street

- What is the address of 21 East 90th Street in NYC?
The address of 21 East 90th Street is 21 East 90th Street, New York, NY 10128
- How many residential units does 21 East 90th Street have?
21 East 90th Street has None residential units.
- Are there available sales or rental listings at 21 East 90th Street?
Yes, there are currently several rental and 1 sale listings available at 21 East 90th Street
- What year was 21 East 90th Street built in?
21 East 90th Street was built in 1927
Looking for 21 East 90th Street sales and new to homebuying? Check out our NYC closing cost calculator
All information regarding an apartment or property for sale or rent as well as tax or financing information is deemed to come from reliable sources. No representation or guarantee, however, is made as to the accuracy thereof, and such information is subject to errors, omission, changes, prior to sale or rental, commission or withdrawal without notice. All square footage, dimensions, or number of rooms are approximate and provided for guidance and on a best-efforts basis only. Please verify square footage yourself before making any decisions. Exact dimensions and room counts can be obtained by retaining the services of a professional architect or engineer.
This information is not verified for authenticity or accuracy and is not guaranteed and may not reflect all real estate activity in the market. ©2025 The Real Estate Board of New York, Inc., All rights reserved. RLS IDX Data display by Highline Residential, LLC. IDX information is provided exclusively for consumers' personal, non-commercial use and that it may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. The data relating to real estate for sale on this website comes in part from the IDX Program of OneKey™ MLS. The source of the displayed data is either the property owner or public record provided by non-governmental third parties. It is believed to be reliable but not guaranteed. This information is provided exclusively for consumers’ personal, non-commercial use. Information Copyright 2023, OneKey™ MLS. All Rights Reserved.
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RLS Data display by Highline Residential. This advertisement does not suggest that the broker has a listing in this property or properties or that any property is currently available.
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By submitting your contact details you agree that a Licensed Real Estate Professional from Highline Residential may call/text/email you about your inquiry, which may involve use of automated means. This Web site has no affiliation to the building, developer, or management company.
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Either email or phone number is required
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This field is required
By submitting your contact details you agree that a Licensed Real Estate Professional from Highline Residential may call/text/email you about your inquiry, which may involve use of automated means. This Web site has no affiliation to the building, developer, or management company.
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Either email or phone number is required
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By submitting your contact details you agree that a Licensed Real Estate Professional from Highline Residential may call/text/email you about your inquiry, which may involve use of automated means. This Web site has no affiliation to the building, developer, or management company.
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By submitting your contact details you agree that a Licensed Real Estate Professional from Highline Residential may call/text/email you about your inquiry, which may involve use of automated means. This Web site has no affiliation to the building, developer, or management company.