Milton Coste

Licensed Real Estate Associate Broker

(917) 416-7433
51 E 90th Street #2-A

For Sale · Listing by Nest Seekers LLC

51 E 90th Street #2-A

Carnegie Hill, Manhattan

$1,425,000

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Active For Sale • Co-op

$1,425,000

51 E 90th Street #2-A

Carnegie Hill, Manhattan

MLS® #RLS20122259

RLS at REBNY

Listing by Nest Seekers LLC

2
Bedrooms
2
Baths
N/A
Sq. Ft.
1926
Year Built

Quick Summary

Bedrooms 2
Bathrooms 2
Year Built 1926
Ownership Co-op
Maintenance $3,877/mo
Neighborhood Carnegie Hill
Floor 2 of 10

Property Highlights

  • Exposure: North,South,West facing
  • Style: Prewar architecture
  • Climate Control: Wall Units

Property Details

Type Co-op
Ownership Stock Cooperative
Total Rooms 5
Baths 2 Full
Floor 2 of 10
Exposure North,South,West
Cooling Wall Units
Pets Yes
Cross Street Madison Avenue/Park Avenue
Year Built 1926
Architectural Style Prewar
Structure Type None
Block/Lot 1502/0023

Listing History

Event Date Price Change
Listed Oct 6, 2026 $1,425,000 -
Currently Oct 22, 2026 $1,425,000 -

Description

One block from Central Park, Residence 2A at 51 East 90th Street embodies the gracious proportions and enduring character of classic Carnegie Hill. Set along one of the neighborhood’s most desirable tree-lined blocks, this south-facing two-bedroom, two-bathroom residence offers three exposures, beautiful parquet floors, and the rare distinction of a separate formal dining room. The living and dining rooms create an elegant setting for both everyday living and entertaining, with generous proportions and a natural sense of flow. A classic butler’s door connects the formal dining room to the windowed kitchen, preserving the apartment’s traditional separation of spaces while adding to its functionality. The kitchen features a built-in wine rack and a private service door opening directly to the building’s service entrance. Double-pane windows throughout provide a quieter, more comfortable interior. The oversized primary bedroom enjoys corner exposures and an en-suite bath, while the second bedroom—currently configured as a private home office—offers flexibility as a bedroom, guest suite, or study. Both bathrooms are finished in floor-to-ceiling Italian marble and present an opportunity for a refined contemporary update. The well-proportioned layout offers additional possibilities for customization, subject to architectural review and required approvals, including the potential to reimagine the formal dining room as a third bedroom, generous den, or additional living space. Designed by architect George Pelham and completed in 1928, 51 East 90th Street is an intimate, full-service cooperative comprising just 38 residences. Building amenities include a full-time doorman, attended service elevator, live-in superintendent, bicycle storage, laundry room, and private storage, subject to availability. In-unit washer/dryers and through-wall air conditioning are permitted. The pet-friendly cooperative also permits pied-à-terre ownership and up to 60% financing. A monthly capital assessment of $1,286.25 remains in effect through June 2027. Ideally situated in Carnegie Hill, the residence is moments from Central Park’s Engineers’ Gate and the Jacqueline Kennedy Onassis Reservoir, and Museum Mile. Nearby schools include The Dalton School, Saint David’s School, The Spence School, The Nightingale-Bamford School, and Convent of the Sacred Heart. With its exceptional location, prewar character, gracious proportions, and potential for thoughtful modernization, Residence 2A presents a rare opportunity to create a distinctly personal home in one of Manhattan’s most coveted neighborhoods.

Features & Amenities

Interior Features

Kitchen Window Building Washer Dryer Install Allowed Common Area In Unit

Exterior Features

Building Storage

Building Amenities

Elevators

Appliances

Dryer Washer

Building Information

Building Data View Compliance & Permits
Stories 10
Structure None
Style Prewar

Financial Details

Maintenance $3,877/mo

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

106

Median Asking Price

$2.17M

Median $/Sqft

$1,540

Avg Days on Market

N/A

New This Week

8

Price Reduced

29%

Sold (30 Days)

17

Median Sale Price

$2.05M

Live data from RLS at REBNY • Updated 10/22/26, 4:30 PM EST

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Location

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51 E 90th Street #2-A, Carnegie Hill, New York County • Near Madison Avenue/Park Avenue

Virtual Tour

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: $4,130

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 $3,877 per month. Confirm the exact amount with Milton Coste before making an offer.

This property has 2 bedrooms and 2 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. Contact Milton Coste for weight limits or breed restrictions.

To schedule a private showing, contact Milton Coste at (917) 416-7433 or milton@miltoncoste.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: RLS20122259
First Listed: 10/22/2026
On Market: 10/6/2026
Price Changed: 10/22/2026
Contract Date: 10/6/2026

Listing Courtesy of Nest Seekers LLC - Ruth Yeskel

Listing Contact: (917) 620-0332

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.

How working with a buyer's agent works: I work for you, not the seller. Before I show you anything, New York brokerage rules ask us to put that in writing: an agreement and a disclosure that say I work for you and negotiate on your behalf. The agreement is non-exclusive: you can work with other agents, it runs for a short fixed term we agree on, and you can end it with a note. You may attend open houses independently without an agreement. Read how it works

RLS at REBNY

RLS Data display by Keller Williams NYC. Data last updated on 10/22/2026 at 8:30 PM UTC

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Milton Coste - NYC Real Estate Broker

Milton Coste

Licensed Real Estate Associate Broker

Keller Williams NYC

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Sale history, taxes, violations and comps for this unit

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Carnegie Hill Market Update

17 sales last 30 days · $2.17M median · 6.2 months supply

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Quick Facts

Status Active Type Co-op Neighborhood Carnegie Hill Borough Manhattan
County New York
Floor 2 of 10
Year Built 1926
First Listed 10/22/2026
Style Prewar
Maintenance $3,877/mo

Monthly Costs Estimate

Down Payment 20%

$285,000

Interest Rate Loading...

Source: Freddie Mac PMMS

Loan Term 30 years

Est. Monthly Payment

$0

Principal & Interest $0
PMI (under 20% down) $0
Maintenance $3,877
Total Monthly $0

Estimates only. Consult a lender for exact figures.

Mansion tax applies at this price point

New York State charges the buyer a mansion tax on residential purchases at $1,000,000 or more. At this asking price the tier is $1M to $1,999,999 at 1.00%, applied to the whole purchase price. It is due in cash at closing and cannot be financed.

Estimated mansion tax at asking

$14,250

Run the numbers on a different offer price

Estimate based on the asking price. Confirm your own obligation with your real estate attorney.

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