SOLD FOR $34,500,000
· Closed March 17, 2026
15 E 63RD Street
MLS® #RLS11029238
Listing by Brown Harris Stevens Residential Sales LLC
7
Bedrooms
8.5
Baths
18,000
Sq. Ft.
1910
Year Built
Quick Summary
Property Highlights
- Views: Other
- Outdoor Space: Terrace
- Style: WalkUp architecture
Property Details
Listing History
| Event | Date | Price | Change |
|---|---|---|---|
| Listed | Jan 15, 2025 | $39,500,000 | - |
| Currently | Apr 28, 2026 | $34,500,000 | -12.7% |
Description
SPECTACULAR BEAUX-ARTS LIMESTONE MANSION
A Rare Opportunity to Acquire a 1901 Gilded Age Masterpiece
Nestled just off Fifth Avenue's prestigious Gold Coast, this approximately 18,000-square-foot Beaux-Arts limestone mansion is a once-in-a-lifetime offering. With six above-grade floors and two below-grade levels, this architectural treasure is one of the few remaining mansions of the Gilded Age in Manhattan
Behind its commanding limestone facade lies an array of extraordinary rooms with soaring ceilings, exceptional proportions, and an abundance of irreplaceable original architectural details. Highlights include a majestic marble staircase, a copper-balconied landing overlooking the parlor, intricately coffered ceilings, and exquisite period moldings throughout.
Designed in 1901 by John H. Duncan, one of America's preeminent architects of the era, the mansion exemplifies his timeless craftsmanship. Duncan is celebrated for landmark projects such as General Grant "s National Memorial (1897) overlooking the Hudson River and the Soldiers" and Sailors" Arch in Brooklyn's Grand Army Plaza. His influence resonates in every corner of this magnificent home.
A Layout that Marries Historic Grandeur with Modern Potential
Entrance Floor:
The grand entrance begins with a stately vestibule secured by original double bronze doors, opening to a breathtaking 56'gallery with 12'7" soaring ceilings. A sweeping marble staircase ascends gracefully to the parlor level, complemented by an elevator featuring exquisite period paneling. The gallery leads to a stunning oval dining room adorned with carved woodwork. Beyond is a large, windowed space which would be perfect as a service kitchen connecting to the main kitchen below.
Parlor Floor:
The parlor floor is unparalleled in its architectural richness, featuring 16'9" ceilings - A remarkable height.
A grand paneled library with a fireplace and two huge, south-facing Palladian French windows overlooks 63rd Street. Opposite the landing is a resplendent drawing room with a fireplace, mirrored walls, intricate moldings, and ornate stonework extending to the ceilings. Beyond are an Anteroom, Bar area and Pantry. French door lead to an entertaining terrace and complete this level.
Third Floor:
Designed as an opulent master suite, this floor features 12" ceilings and includes a front-facing sitting room with two tall French windows, a spacious dressing area, and two luxurious marble bathrooms.
Fourth Floor:
The fourth floor offers two expansive bedrooms, each featuring its own large sitting room, fireplace, and ensuite bath.
Fifth Floor:
A remarkable double-height sitting room with a fireplace and a dramatic Palladian window defines the fifth floor. This level also includes two additional bedrooms with dressing areas and ensuite baths, as well as a kitchenette and dining area.
Sixth Floor:
The sixth floor features a balcony and atrium overlooking the sitting room below, along with an additional and large, sunny bedroom with ensuite bath. This floor boasts two terraces: a north-facing terrace with views of the Upper East Side's landmarks and a south-facing terrace offering breathtaking panoramas of Midtown's skyline including Billionaires'Row to the west and partial views of Central Park.
First Lower Level:
Originally designed as a very large eat-in kitchen, this level features up to 11" vaulted ceilings, beautiful original cabinetry, and a service entrance on the 63rd Street side secured with double doors. At the rear is an outdoor atrium/walled garden which fills the space with natural light. Part of this first lower level may also be perfect to accommodate large staff and security quarters.
Second Lower Level:
Fully built out and partially windowed, this recreation level presents endless possibilities for a spa, gym, or even an indoor swimming pool.
A Rare Chance to Own a New York City Landmark
15 East 63rd Street is a truly extraordinary offering. For the discerning buyer, it represents an unparalleled opportunity to preserve the wealth of architectural provenance while allowing the lucky buyer to incorporate state-of-the-art technology and amenities
Features & Amenities
Interior Features
Exterior Features
Building Amenities
Building Information
Financial Details
About Lenox Hill
View All Lenox Hill ListingsLenox Hill occupies a residential section of the Upper East Side, defined by proximity to Central Park, major medical institutions (Memorial Sloan Kettering, Weill Cornell, Lenox Hill Hospital), and the Madison Avenue retail corridor. Housing stock ranges from large pre-war cooperatives to modern condominiums with East River and skyline views.
Lenox Hill Live Market Data
View NeighborhoodActive Listings
607
Median Asking Price
$1.20M
Median $/Sqft
$1,315
Avg Days on Market
N/A
New This Week
27
Price Reduced
34%
Sold (30 Days)
62
Median Sale Price
$1.26M
Live data from RLS at REBNY • Updated 4/28/26, 8:24 AM EST
Similar Listings in Lenox Hill
View All125 E 65TH Street
Single Family Residence • RLS #RLS20053868
16 E 76TH Street
Single Family Residence • RLS #RLS20003853
167 E 74TH Street
Single Family Residence • RLS #RLS20080634
52 E 69TH Street
Single Family Residence • RLS #RLS20069582
134 E 62ND Street
Single Family Residence • RLS #RLS20083860
113 E 64TH Street
Single Family Residence • RLS #RLS20085912
Browse More NYC Properties
In This Neighborhood
By Property Type
By Borough
Location
15 E 63RD Street, Lenox 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 $204,948, or roughly $17,079 per month. Verify the current assessment with your attorney before closing.
This property has 7 bedrooms and 8 full bathrooms and 4 half bathrooms.
The listed interior living area is 18,000 square feet. Verify dimensions independently during due diligence.
According to MLS records, the building was constructed in 1910, making it approximately 116 years old.
This listing is None
Pets are permitted at this property. Contact the listing broker for weight limits or breed restrictions.
At the current list price of $34,500,000 for 18,000 sq ft, the asking price per square foot is approximately $1,917. 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 [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 Brown Harris Stevens Residential Sales LLC - Sami Hassoumi
Listing Contact: (212) 906-9267
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 4/28/2026 at 12:24 PM UTC