For Sale · Listing by Berkshire Hathaway HomeServices New York Properties
9 E 88TH Street
Carnegie Hill, Manhattan
$35,000,000
$35,000,000
9 E 88TH Street
MLS® #RLS20115228
Listing by Berkshire Hathaway HomeServices New York Properties
- 8
- Bedrooms
- 8.5
- Baths
- N/A
- Sq. Ft.
- 1899
- Year Built
Quick Summary
Property Highlights
- Views: Other
- Outdoor Space: Terrace
- Climate Control: Other
Property Details
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
Exterior Features
Building Amenities
Appliances
Building Information
Financial Details
About Carnegie Hill
View All Carnegie Hill ListingsCarnegie 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 NeighborhoodActive 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
9 E 88TH Street, Carnegie Hill, New York County
Floor Plans
Building Information
Official NYC property records for this building
Tax & Assessment
Note: Individual unit taxes may differ. Verify current tax bills with NYC DOF.
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
Listing Data
RLS® at REBNY (Real Estate Board of New York) via Trestle API. Updated in real-time.
Building Data
NYC PLUTO (Primary Land Use Tax Lot Output), NYC Department of City Planning. Updated quarterly.
Market Data
RLS® at REBNY (Real Estate Board of New York). Live data updated in real-time.
Map & Location
OpenStreetMap contributors via Leaflet. Geocoding via Nominatim.
All data is provided for informational purposes only and should be independently verified. See our Data Sources Policy for more information.
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) 416-7433Listing 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 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
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Quick Facts
Monthly Costs Estimate
$7,000,000
Source: Freddie Mac PMMS
Est. Monthly Payment
$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
Estimate based on the asking price. Confirm your own obligation with your real estate attorney.
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