Milton Coste

Licensed Real Estate Associate Broker

(917) 416-7433

SOLD FOR $1,675,000

· Closed May 18, 2026

51 E 90TH Street #5B
Closed For Sale Co-op

$1,675,000

51 E 90TH Street #5B

Carnegie Hill, Manhattan

MLS® #RLS20045812

RLS at REBNY

Listing by Brown Harris Stevens Residential Sales LLC

3

Bedrooms

3

Baths

N/A

Sq. Ft.

1926

Year Built

Quick Summary

Bedrooms 3
Bathrooms 3
Year Built 1926
Ownership Co-op
Maintenance $4,776/mo
Neighborhood Carnegie Hill
Floor 5 of 10

Property Highlights

  • Views: City
  • Exposure: South facing
  • Climate Control: Other

Property Details

Type Co-op
Ownership Stock Cooperative
Total Rooms 6
Baths 3 Full
Floor 5 of 10
View City
Exposure South
Cooling Other
Pets Yes
Year Built 1926
Structure Type HighRise
Basement Other
Block/Lot 01502/0023

Listing History

Event Date Price Change
Listed Jan 5, 2026 $1,750,000 -
Currently May 29, 2026 $1,675,000 -4.3%

Description

Prime Carnegie Hill Classic 6 with Southern Light and Exceptional Layout

This elegant Classic 6 residence offers an ideal layout paired with timeless prewar charm. With only three neighboring units per floor, this home begins with a gracious entry foyer that flows into a large living room and a generously sized formal dining room. Off the dining room is a small room with a large window perfect for an office/nursery. Both bedrooms are located off a bedroom hallway and face East 90th Street. The oversized primary bedroom features an en suite bath and ample closet space. The second bedroom is also generously proportioned, with abundant natural light and lovely neighborhood views.

The renovated, windowed kitchen includes a separate pantry and offers abundant storage. Adjacent to the kitchen is a small third bedroom with a windowed full bath. Every room, including all three bathrooms, benefits from natural light and ventilation with its own window. Other features include 9-foot beamed ceilings, newly installed windows, and sun-drenched southern exposures with views of treetops and open sky. Through-wall AC and washer/dryer is allowed per board approval.

Built in 1926, 51 East 90th Street is a full-service cooperative featuring a 24-hour doorman, live-in superintendent, bike room, and private storage. Situated on a beautiful tree-lined block between Madison and Park Avenues, it's just a short stroll to the Engineers" Gate entrance of Central Park and the Jacqueline Kennedy Onassis Reservoir. 60% financing permitted. Pet-friendly and pied-a-terre allowed. 2% flip tax paid by buyer.

Features & Amenities

Interior Features

Building Other

Exterior Features

None

Building Amenities

Bike Storage Elevators

Building Information

Building Data View Compliance & Permits
Total Units 38
Stories 10
Structure HighRise

Financial Details

Maintenance $4,776/mo
Original Price $1,750,000
Sale Price $1,675,000
Previous Price $1,750,000

Carnegie 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 Neighborhood

Active Listings

134

Median Asking Price

$2.85M

Median $/Sqft

$1,703

Avg Days on Market

N/A

New This Week

2

Price Reduced

38%

Sold (30 Days)

10

Median Sale Price

$1.89M

Live data from RLS at REBNY • Updated 5/29/26, 11:34 AM EST

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Location

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51 E 90TH Street #5B, Carnegie Hill, New York County

Floor Plans

Floor Plan 1

Building Information

Official NYC property records for this building

1960
Year Built
66 years old
2
Floors
1
Residential Units
R2
Zoning District
One Family Dwellings

Tax & Assessment

Assessed Value: $66,960
Land Value: $12,720
Exemptions: $1,420

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

Lot Area: 5,000 SF
Building Area: 2,250 SF
Built FAR: 0.45
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 $4,776 per month. Confirm the exact amount with the listing broker before making an offer.

This property has 3 bedrooms and 3 full bathrooms.

According to MLS records, the building was constructed in 1926, making it approximately 100 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: Pets Allowed,Building Pets Allowed Comments:Pets Allowed. Contact the listing broker for weight limits or breed restrictions.

To schedule a private showing, contact Milton Coste at (917) 416-7433 or [email protected]. 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: RLS20045812
First Listed: 9/3/2025
On Market: 1/5/2026
Price Changed: 5/18/2026
Closed: 5/18/2026
Contract Date: 9/3/2025

Listing Courtesy of Brown Harris Stevens Residential Sales LLC - Katharine F Tuckerman

Listing Contact: (212) 906-9228

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 5/29/2026 at 3:34 PM UTC

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