Milton Coste

Licensed Real Estate Associate Broker

(917) 416-7433

SOLD FOR $4,495,000

· Closed October 1, 2025

21 E 87th Street #6D
Closed For Sale Co-op

$4,495,000

21 E 87th Street #6D

Upper East Side, Manhattan

MLS® #RLS20019791

RLS at REBNY

Listing by Compass

3

Bedrooms

3

Baths

N/A

Sq. Ft.

1927

Year Built

Quick Summary

Bedrooms 3
Bathrooms 3
Year Built 1927
Ownership Co-op
Maintenance $4,844/mo
Neighborhood Upper East Side
Floor 6 of 13

Property Highlights

  • Exposure: East,North,West facing
  • Fireplace: 1 fireplace
  • Climate Control: Wall Units

Property Details

Type Co-op
Ownership Stock Cooperative
Total Rooms 7
Baths 3 Full
Floor 6 of 13
Exposure East,North,West
Heating Wall Furnace
Cooling Wall Units
Pets Yes, CatsOk, DogsOk
Year Built 1927
Structure Type HighRise
Flooring Hardwood
Furnished Unfurnished
Parcel # 1499-0014-00021-000-000006D
Block/Lot 01499/0014

Listing History

Event Date Price Change
Listed Apr 29, 2025 $4,495,000 -
Currently Apr 25, 2026 $4,495,000 -

Description

Welcome to 21 East 87th Street, Apartment 6D, a stunningly renovated classic seven-room home in a premier Carnegie Hill cooperative. Spanning approximately 2,400 square feet, this elegant three-bedroom, three-bath residence offers a rare combination of scale, comfort, and prewar detail. A gracious gallery opens into a well-proportioned floor plan with exposures to the east, west, and north, providing pleasant natural light throughout the day. The expansive living room features a decorative fireplace and flows into the dining room or den, ideal for entertaining. At the heart of the home is the oversized chef’s kitchen, thoughtfully designed with marble countertops, custom cabinetry, high-end appliances, and a relaxed eat-in area. Just beyond the kitchen is a home office with built-in millwork, a washer and dryer, and a full en-suite bath. It can also serve as a cozy fourth bedroom. The private bedroom wing includes three generously sized bedrooms, including a serene and exquisite primary suite with a windowed marble en-suite bath featuring a shower, and a walk-in closet. Located just one block from Central Park, 21 East 87th Street is an Emery Roth–designed building offering a full-time doorman, live-in superintendent, fitness room, bike room, private storage room, and laundry room. A monthly capital assessment of $785.83 is in place through December 2025. The building is pet-friendly, permits up to 65% financing, and has a 2% flip tax.

Features & Amenities

Interior Features

Built In Features Entrance Foyer Eat In Kitchen High Ceilings Walk In Closets Building Washer Dryer Install Allowed Common On Floor Common Area In Unit Flooring: Hardwood Fireplace (1)

Building Amenities

Elevators

Appliances

Dishwasher

Building Information

Building Data View Compliance & Permits
Total Units 72
Stories 13
Structure HighRise

Financial Details

Maintenance $4,844/mo
Sale Price $4,495,000

The Upper East Side remains the gold standard for classic New York elegance. Known for 'Museum Mile' and its low-traffic, tree-lined streets, the neighborhood offers a refined lifestyle away from the midtown bustle. While famous for its historic cooperatives, the area has seen a recent surge in ultra-luxury new construction condos, particularly along the Second Avenue Subway corridor, making it a top choice for both traditionalists and modern buyers.

Upper East Side Live Market Data

View Neighborhood

Active Listings

340

Median Asking Price

$1.57M

Median $/Sqft

$1,559

Avg Days on Market

N/A

New This Week

30

Price Reduced

26%

Sold (30 Days)

31

Median Sale Price

$1.52M

Live data from RLS at REBNY • Updated 4/25/26, 11:09 AM EST

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Location

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21 E 87th Street #6D, Upper East Side, New York County

Floor Plans

Floor Plan

Building Information

Official NYC property records for this building

1925
Year Built
101 years old
2
Floors
1
Residential Units
R2
Zoning District
One Family Dwellings

Tax & Assessment

Assessed Value: $117,480
Land Value: $27,660
Exemptions: $0

Note: Individual unit taxes may differ. Verify current tax bills with NYC DOF.

Lot Area: 4,000 SF
Building Area: 2,290 SF
Built FAR: 0.57
Allowed FAR: 0.75

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

Frequently Asked Questions

Common questions about this property

The current listed monthly maintenance are $4,844 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 3 bedrooms and 3 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) 416-7433
MLS® ID: RLS20019791
First Listed: 4/29/2025
On Market: 4/29/2025
Price Changed: 4/29/2025
Closed: 10/1/2025
Contract Date: 3/17/2025

Listing Courtesy of Compass - Knight Patterson Meem

Listing Contact: (917) 318-6242

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 at REBNY

RLS Data display by Keller Williams NYC. Data last updated on 4/25/2026 at 3:09 PM UTC

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