For Sale · Listing by Sothebys International Realty
10 E 73rd Street
Lenox Hill, Manhattan
$35,000,000
10 E 73rd Street
MLS® #RLS20086046
Listing by Sothebys International Realty
- 6
- Bedrooms
- 6.5
- Baths
- 8,800
- Sq. Ft.
- 1910
- Year Built
Quick Summary
Property Highlights
- Views: City
- Exposure: North,South,West facing
- Outdoor Space: Building Terrace, Balcony
Property Details
Listing History
| Event | Date | Price | Change |
|---|---|---|---|
| Listed | Apr 22, 2026 | $35,000,000 | - |
| Currently | Sep 17, 2026 | $35,000,000 | - |
Description
Perfectly situated on one of the city’s most prized blocks, this stunning limestone mansion is distinguished by its elegant yet restrained façade and fortuitous placement just off Fifth Avenue. The house is also most fortunate to be flanked by and across from several houses of equivalent architectural merit, on an especially coveted block. Sun-filled, open and airy, the 22.5-foot wide residence is comprised of a total of five stories plus an immaculately finished basement. The interiors are simply beautiful, and perfectly reflect the very good taste exhibited by the exterior of the house. Moreover, the classic but updated floor plan hits just the right note for today’s lifestyle, while the serene and effortlessly chic rooms are an absolute delight. Entry is into a vestibule with double doors that open into a white marble clad Gallery that imbues the house with a European sensibility. Beyond there is a grand scale Dining Room that very easily accommodates thirty guests. The adjacent eat-in Kitchen and Pantry are absolutely pristine, and newly-renovated with a panoply of state-of-the-art appliances and fittings. Delightfully, the Kitchen benefits from serene outlooks onto the pretty garden. A wide and graciously ascending staircase leads to the exceptional Parlor Floor which is distinguished by a nice big and broad landing, nearly 11-foot tall ceilings, and hand-carved millwork. The tremendous Living Room and elegant wood paneled Library both feature charming tree-line outlooks and wood burning fireplaces. In terms of the private quarters, the very big Third Floor Primary Bedroom Suite includes a fireplace, a luxurious and classic white marble bathroom, a large Dressing Area, an abundance of closets, and a lovely Study. The Fourth Floor is comprised of three spacious and sunny bedrooms with ensuite marble baths and very ample closets. And the Fifth Floor, with two bedrooms and baths, is much the same but also includes an utterly charming and most picturesque south facing terrace as well as a pretty planting terrace to the north. This sublime house is a delight in every possible way. Effortlessly, it incorporates the amenities and custom touches now expected for today’s lifestyle with prewar architectural merit and detail treasured by any discerning townhouse buyer.
Features & Amenities
Interior Features
Exterior Features
Building Amenities
Appliances
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
563
Median Asking Price
$1.54M
Median $/Sqft
$1,579
Avg Days on Market
N/A
New This Week
47
Price Reduced
27%
Sold (30 Days)
81
Median Sale Price
$1.28M
Live data from RLS at REBNY • Updated 9/17/26, 2:36 PM EST
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Location
10 E 73rd Street, Lenox Hill, New York County
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 common charges are $0 per month. Confirm the exact amount with Milton Coste before making an offer.
The current listed annual property tax is $195,684, or roughly $16,307 per month. Verify the current assessment with your attorney before closing.
This property has 6 bedrooms and 6 full bathrooms and 3 half bathrooms.
The listed interior living area is 8,800 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
Pet policy requires confirmation with Milton Coste. Additional notes: UnitYes
At the current list price of $35,000,000 for 8,800 sq ft, the asking price per square foot is approximately $3,977. 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 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) 416-7433Listing Courtesy of Sothebys International Realty - Serena Boardman
Listing Contact: (212) 606-7611
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 9/17/2026 at 6:36 PM UTC
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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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