Under Contract – Backup offers may be accepted
21 E 90TH Street #3C
MLS® #RLS20081504
Listing by Brown Harris Stevens Residential Sales LLC
2
Bedrooms
2
Baths
N/A
Sq. Ft.
1927
Year Built
Quick Summary
Property Highlights
- Views: City
- Exposure: East,West facing
- Fireplace: 1 fireplace
Property Details
Listing History
| Event | Date | Price | Change |
|---|---|---|---|
| Listed | Apr 6, 2026 | $2,295,000 | - |
| Currently | Jul 2, 2026 | $2,295,000 | - |
Description
Charming Prewar Classic Five Room with Low Maintenance Entering through the gracious foyer from a semi-private elevator landing, one is immediately struck by the size and scale of each room, the high ceilings, the beautiful hardwood floors and the sunny east-facing wall of windows. The living room features custom built-in bookcases, storage and a stately decorative fireplace mantle. The elegant dining room separates the living room and the kitchen and has a large hidden walk-in closet. The heart of the home-the windowed eat-in kitchen-features Bertazzoni and Bosch appliances, a charming tripartite window, room for a comfortable kitchen table, along with a washer/dryer and separate service entrance. On the opposite side of the apartment, there is an elegant hallway separating the two king-sized bedrooms from the living area. The sunny primary bedroom faces east and has built-in bookshelves, an en-suite windowed bathroom and a large custom walk-in closet. The 2nd bedroom faces west and has a windowed en-suite bathroom and large closet of its own. There is built-in thru-wall AC in every room, and the apartment transfers with storage. 21 East 90th Street is an esteemed Carnegie Hill white-glove full-service cooperative built in 1927 by notable architect George F. Pelham. The building features a 24-hour doorman, on-site resident manager, recently renovated lobby, an exercise room, courtyard, storage, laundry room and only two apartments per landing. Pied-a-terre and pets are permitted with board approval and there is a 2% flip tax paid by purchaser.
Features & Amenities
Interior Features
Exterior Features
Building Amenities
Appliances
Building Information
Financial Details
About Carnegie Hill
View All Carnegie Hill ListingsCarnegie Hill is a low-traffic residential section of the Upper East Side defined by proximity to Central Park and Museum Mile. The area features low-rise historic architecture and large pre-war cooperatives, with landmarked blocks and boutique retail along Madison Avenue.
Carnegie Hill Live Market Data
View NeighborhoodActive Listings
109
Median Asking Price
$2.69M
Median $/Sqft
$1,664
Avg Days on Market
N/A
New This Week
2
Price Reduced
47%
Sold (30 Days)
15
Median Sale Price
$2.44M
Live data from RLS at REBNY • Updated 7/2/26, 4:20 AM EST
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Location
21 E 90TH Street #3C, Carnegie Hill, New York County
Floor Plans
Building Information
Official NYC property records for this building
Tax & Assessment
Note: Individual unit taxes may differ. Verify current tax bills with NYC DOF.
Source: NYC PLUTO (Primary Land Use Tax Lot Output), NYC Department of City Planning (data.cityofnewyork.us)
Want help estimating ownership costs or understanding building compliance? Let's discuss
Listing Data
RLS® at REBNY (Real Estate Board of New York) via Trestle API. Updated in real-time.
Building Data
NYC PLUTO (Primary Land Use Tax Lot Output), NYC Department of City Planning. Updated quarterly.
Market Data
RLS® at REBNY (Real Estate Board of New York). Live data updated in real-time.
Map & Location
OpenStreetMap contributors via Leaflet. Geocoding via Nominatim.
All data is provided for informational purposes only and should be independently verified. See our Data Sources Policy for more information.
Frequently Asked Questions
Common questions about this property
The current listed monthly maintenance are $3,667 per month. Confirm the exact amount with the listing broker before making an offer.
This property has 2 bedrooms and 2 full bathrooms.
According to MLS records, the building was constructed in 1927, making it approximately 99 years old.
This listing is a co-op (stock cooperative). Buyers purchase shares in a corporation rather than real property, and the board must approve all sales.
Pets are permitted at this property. Contact the listing broker for weight limits or breed restrictions.
To schedule a private showing, contact Milton Coste at (917) 416-7433 or mcoste@kwnyc.com. Per REBNY guidelines effective 2025, a Buyer Representation Agreement is required before a buyer's broker can show you properties. You may attend open houses independently without one.
Have a question not answered here?
(917) 416-7433Listing Courtesy of Brown Harris Stevens Residential Sales LLC - Justin Duffy
Listing Contact: (212) 606-7660
Listing information for certain New York City properties provided courtesy of the Real Estate Board of New York's Residential Listing Service (the "RLS"). The information contained in this listing has not been verified by the RLS and should be verified by the consumer. The listing information provided here is for the consumer's personal, non-commercial use. Retransmission, redistribution or copying of this listing information is strictly prohibited except in connection with a consumer's consideration of the purchase and/or sale of an individual property. This listing 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. This advertisement does not suggest that the broker has a listing in this property or properties or that any property is currently available.
Broker Commission Disclosure: Broker commissions are not set by law and are fully negotiable.
Buyer Notice: Planning to work with a buyer's broker? A Buyer Representation Agreement is required before your broker can show you properties, per REBNY/UCBA guidelines (effective 2025). You may attend open houses independently without one.
RLS Data display by Keller Williams NYC. Data last updated on 7/2/2026 at 8:20 AM UTC