21 E 87th Street #7B
MLS® #RLS20081893
Listing by Sothebys International Realty
4
Bedrooms
4
Baths
2,638
Sq. Ft.
1927
Year Built
Quick Summary
Property Highlights
- Views: City
- Exposure: East,South facing
- Character: Pre-war building (1927)
Property Details
Listing History
| Event | Date | Price | Change |
|---|---|---|---|
| Listed | Apr 7, 2026 | $6,195,000 | - |
| Currently | May 22, 2026 | $5,750,000 | -7.2% |
Description
21 East 87th Street, #7B Spacious, light flooded, prewar, 9-room apartment in prime Carnegie Hill location, this gracious property has the original floorplan and has been beautifully maintained by the same family for about eighty years. It formerly housed a magnificent, world renowned collection of Old Master drawings. One enters the apartment through an elevator vestibule, shared by one other tenant, into a large foyer leading into a grand, east-facing living room with decorative fireplace and two large, double-hung windows overlooking Madison Avenue. The adjacent formal dining room, easily seating twelve, is linked to the kitchen by a butler’s pantry with sink, refrigerator and dishwasher. In the eat-in kitchen, there is a washer/dryer and, off it, two maid’s rooms with a connecting bath. The four good-sized bedrooms, all accessed from corridors off the foyer, face south and have ample closet space. The primary one, serviced by a large fitted dressing room closet, is situated on the corner and therefore also has a wonderful, additional eastern exposure and a view overlooking the Park Avenue Synagogue. It has an en suite bathroom with separate shower and bathtub. One of the three bedrooms also has a small bathroom en suite, while the other two (one now used as a library) have a larger connecting bathroom that also provides a powder room for the apartment Apartments in the B-line of 21 East 87th Street rarely come on the market. Designed by Emery Roth in 1927, this building, situated near some of the best schools, restaurant and museums in New York City, is one of the most sought-after on the upper Eastside. It is a full-service building with resident super and full-time doormen, as well as such amenities as a gym, a central laundry, bike storage, and a private storage unit. There is a 2% flip tax. 65% financing permitted. Current monthly assessment of $515.08 through 2026.
Features & Amenities
Interior 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
137
Median Asking Price
$2.75M
Median $/Sqft
$1,702
Avg Days on Market
N/A
New This Week
4
Price Reduced
36%
Sold (30 Days)
6
Median Sale Price
$2.81M
Live data from RLS at REBNY • Updated 5/22/26, 5:29 PM EST
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21 E 87th Street #7B, 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)
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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 $6,416 per month. Confirm the exact amount with the listing broker before making an offer.
The current listed annual property tax is $0, or roughly $0 per month. Verify the current assessment with your attorney before closing.
This property has 4 bedrooms and 4 full bathrooms.
The listed interior living area is 2,638 square feet. Verify dimensions independently during due diligence.
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.
At the current list price of $5,750,000 for 2,638 sq ft, the asking price per square foot is approximately $2,180. This figure is for reference only and may differ from appraised or assessed values.
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 Sothebys International Realty - Armin B Allen
Listing Contact: (917) 533-7949
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 5/22/2026 at 9:29 PM UTC