Milton Coste

Licensed Real Estate Associate Broker

(917) 416-7433
9 E 88TH Street

For Sale · Listing by Berkshire Hathaway HomeServices New York Properties

9 E 88TH Street

Carnegie Hill, Manhattan

$35,000,000

Interested in this property?

$35,000,000

9 E 88TH Street

Carnegie Hill, Manhattan

MLS® #RLS20115228

RLS at REBNY

Listing by Berkshire Hathaway HomeServices New York Properties

8
Bedrooms
8.5
Baths
N/A
Sq. Ft.
1899
Year Built

Quick Summary

Bedrooms 8
Bathrooms 9 full, 2 half
Lot Size 2,600 sq ft
Year Built 1899
Ownership None
Property Taxes $97,524/yr
Neighborhood Carnegie Hill
Floor 1 of 6

Property Highlights

  • Views: Other
  • Outdoor Space: Terrace
  • Climate Control: Other

Property Details

Type Single Family Residence
Ownership None
Total Rooms 25
Baths 8 Full, 2 Half
Floor 1 of 6
View Other
Cooling Other
Pets Yes
Year Built 1899
Structure Type Townhouse
Basement Other
Lot Size 2,600 sq ft
Parcel # 1500-0008
Block/Lot 01500/0008

Listing History

Event Date Price Change
Listed Sep 15, 2026 $35,000,000 -
Currently Sep 15, 2026 $35,000,000 -

Description

Twenty-six feet wide, six stories tall, and set on one of Manhattan's most protected blocks, 9 East 88th Street is a rare Beaux-Arts mansion just off Fifth Avenue, with the Guggenheim nearby and Central Park at the end of the block. Built in 1902 by James R. Turner and William G. Killian, its interiors were later reimagined by John Russell Pope, architect of the Jefferson Memorial and National Gallery of Art. Behind a rose-brick facade with limestone and marble detailing, the home opens to a dramatic reception hall with herringbone floors, a carved stone fireplace, and a sweeping wrought-iron staircase. The parlor floor features a grand formal salon and an exceptional mahogany-paneled dining room with silk curtains, a carved marble fireplace, and leaded-glass windows. Above, the bowed library is lined in mahogany bookcases and opens to an iron balcony. The dedicated kitchen floor is designed for full service, with a Viking range, double ovens, marble-topped island, prep sink, extensive cabinetry, and access to the rear stair and outdoor space. Three staircases and a wood-paneled elevator serve the home from basement to sixth floor. Eight bedrooms and ten bathrooms occupy the upper levels, including a refined primary suite with bowed windows, marble fireplace, and a slab-marble bath with steam shower. Fireplaces appear throughout the residence. At the top, a glass conservatory with vaulted skylight opens onto more than 1,500 square feet of planted rooftop terrace. Approximately 14,125 square feet in total, the home also offers central air, updated mechanical and security systems, and irrigated terraces. Located within the Carnegie Hill Historic District, this is an extraordinary combination of scale, architecture, location, and history.

Features & Amenities

Interior Features

Smoke Free Washer Hookup In Unit

Exterior Features

Garden Private Outdoor Space Under60 Sqft Terrace

Building Amenities

Green Building

Appliances

Dishwasher Washer Dryer Allowed

Building Information

Building Data View Compliance & Permits
Total Units 1
Stories 6
Structure Townhouse

Financial Details

RE Taxes $97,524/yr ($8,127/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

91

Median Asking Price

$2.25M

Median $/Sqft

$1,694

Avg Days on Market

N/A

New This Week

16

Price Reduced

32%

Sold (30 Days)

16

Median Sale Price

$2.20M

Live data from RLS at REBNY • Updated 9/15/26, 2:38 PM EST

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Location

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9 E 88TH Street, Carnegie Hill, New York County

Floor Plans

Floor Plan 1

Building Information

Official NYC property records for this building

1932
Year Built
94 years old
6
Floors
174
Residential Units
R7A
Zoning District
Elevator Apartments

Tax & Assessment

Assessed Value: $8,990,100
Land Value: $471,150
Exemptions: $237,331

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

Lot Area: 52,333 SF
Building Area: 222,787 SF
Built FAR: 4.26
Allowed FAR: 4

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 annual property tax is $97,524, or roughly $8,127 per month. Verify the current assessment with your attorney before closing.

This property has 8 bedrooms and 8 full bathrooms and 2 half bathrooms.

According to MLS records, the building was constructed in 1899, making it approximately 127 years old.

This listing is None

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 [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: RLS20115228
First Listed: 9/15/2026
On Market: 9/15/2026
Price Changed: 9/15/2026
Contract Date: 9/15/2026

Listing Courtesy of Berkshire Hathaway HomeServices New York Properties - Brian K Meier

Listing Contact: (917) 656-3230

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 9/15/2026 at 6:38 PM UTC

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Carnegie Hill Market Update

16 sales last 30 days · $2.25M median · 5.7 months supply

Read Full Report

New listings in this neighborhood

Quick Facts

Monthly Costs Estimate

Down Payment 20%

$7,000,000

Interest Rate Loading...

Source: Freddie Mac PMMS

Loan Term 30 years

Est. Monthly Payment

$0

Principal & Interest $0
PMI (under 20% down) $0
Est. Taxes $8,127
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 $25M and above at 3.90%, applied to the whole purchase price. It is due in cash at closing and cannot be financed.

Estimated mansion tax at asking

$1,365,000

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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