Milton Coste

Licensed Real Estate Associate Broker

(917) 416-7433

SOLD FOR $26,000,000

· Closed December 28, 2022

15 E 90TH Street #NA

$26,000,000

$2,136 per sq ft

15 E 90TH Street #NA

Upper East Side, Manhattan

MLS® #RLS10816608

RLS at REBNY

Listing by Corcoran Group

5

Bedrooms

5.5

Baths

12,173

Sq. Ft.

N/A

Year Built

Quick Summary

Bedrooms 5
Bathrooms 6 full, 3 half
Living Area 12,173 sq ft
Year Built N/A
Neighborhood Upper East Side

Property Highlights

  • Fireplace: Wood-burning or decorative fireplace

Property Details

Type Single Family Residence
Total Rooms 20
Baths 5 Full, 3 Half
Pets Yes
Living Area 12,173 sq ft
Parcel # 1502-0011

Listing History

Event Date Price Change
Listed Jul 8, 2022 $29,500,000 -
Currently May 4, 2026 $26,000,000 -11.9%

Description

Welcome to 15 East 90th street, the landmarked Emily Trevor Mansion, a unique piece of Manhattan history.

This nearly 26 feet wide Park block Carnegie Hill Mansion boasts over 12,000 square feet, including two stunning terraces. The Mansion designed by Mott Schmidt underwent a complete renovation and modernization completed in 2022, with a special effort to preserve its original spirit, architecture and style.

All floors are accessible by the elevator, which has fully renewed equipment.

One enters into a grandly scaled traditional marble reception room, equipped with a wood-burning fireplace and stunning original ceiling murals based on the work of British architect Robert Adam, entirely restored by a specialty art conservation. A separate discreet service entrance allows direct passage to the spacious chef's kitchen.

The central kitchen has new Miele appliances, an oversized island, and direct access to the garden terrace. This area provides access to the lower level with not one but two gyms.

The enormous parlor floor comprises a grandly scaled south-facing living room flooded with light and a wood-burning fireplace. On the opposite side is a 26-foot butler's kitchen that services the dining room, perfect for hosting dinner parties.

On the third floor is the primary bedroom with its fireplace, spacious closets and stunning bathroom made in solid Quartz. Also situated on the third floor is the restored South facing library, made from substantial woodwork brought by boat in the XIX century. In this room, you can also find the fourth fireplace.

The upper staircase brings one to the fourth floor, where a media room separates two additional large bedrooms under a skylight.

Lastly, ascending to the sun-blasted 5th floor is a lounge, two additional bedrooms, a steam shower and a fully fitted sauna. The terrace on the 5th floor boasts 450 square feet and faces south, allowing the sun to shine throughout the day.

Lighting fixtures throughout the house are by Edward Caldwell
New hardwood floors throughout
The boiler is renewed
The roof was redone in 2022
The stone, millwork and plumbing were redone throughout the house.

This extraordinary house represents a rare opportunity to acquire a uniquely particular property, one of the most admired on the Upper East Side, in the heart of Carnegie Hill, a stone's throw from Central Park.

Features & Amenities

Interior Features

Fireplace

Appliances

Washer Dryer Allowed

Building Information

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

338

Median Asking Price

$1.75M

Median $/Sqft

$1,536

Avg Days on Market

N/A

New This Week

22

Price Reduced

28%

Sold (30 Days)

36

Median Sale Price

$1.53M

Live data from RLS at REBNY • Updated 5/4/26, 4:34 AM EST

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Location

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15 E 90TH Street #NA, Upper East Side, New York County

Floor Plans

Floor Plan 1

Building Information

Official NYC property records for this building

1965
Year Built
61 years old
1
Floors
R7B
Zoning District

Tax & Assessment

Assessed Value: $4,491,900
Land Value: $3,442,500
Exemptions: $4,491,900

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

Lot Area: 238,550 SF
Building Area: 2,125 SF
Built FAR: 0.01
Allowed FAR: 3

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

This property has 5 bedrooms and 5 full bathrooms and 3 half bathrooms.

The listed interior living area is 12,173 square feet. Verify dimensions independently during due diligence.

Pets are permitted at this property. Contact the listing broker for weight limits or breed restrictions.

At the current list price of $26,000,000 for 12,173 sq ft, the asking price per square foot is approximately $2,136. 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) 416-7433
MLS® ID: RLS10816608
First Listed: 7/8/2022
Price Changed: 12/29/2022
Closed: 12/28/2022
Contract Date: 7/8/2022

Listing Courtesy of Corcoran Group - David Mayer

Listing Contact: (917) 783-0707

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 5/4/2026 at 8:34 AM UTC

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