For Sale · Listing by Sothebys International Realty
817 5th Avenue #7
Lenox Hill, Manhattan
$15,500,000
817 5th Avenue #7
MLS® #RLS20117040
Listing by Sothebys International Realty
- 2
- Bedrooms
- 2.5
- Baths
- 3,510
- Sq. Ft.
- 1925
- Year Built
Quick Summary
Property Highlights
- Views: Park Greenbelt
- Climate Control: Central Air
- Character: Pre-war building (1925)
Property Details
Listing History
| Event | Date | Price | Change |
|---|---|---|---|
| Listed | Sep 23, 2026 | $15,500,000 | - |
| Currently | Sep 23, 2026 | $15,500,000 | - |
Description
Occupying the entire seventh floor of 817 Fifth Avenue, this beautifully renovated 12-room residence, originally configured with four bedrooms, has been reimagined as an expansive two-bedroom, two-and-a-half-bath home combining grand proportions, exceptional craftsmanship, and magnificent Central Park views. A private elevator landing opens into a striking onyx-floored foyer, immediately establishing the residence's quality. Beyond is an extraordinary 25-by-28-foot double living room with oversized picture windows framing direct views of Central Park and the Manhattan skyline. Rich wood paneling, extensive custom millwork, and a ventless fireplace with a sculptural stone surround create an elegant setting for both large-scale entertaining and comfortable everyday living. Adjacent to the living room is a handsome media room with custom cabinetry and integrated audiovisual equipment. The formal dining room is conveniently positioned near the windowed kitchen, which features abundant custom wood cabinetry, granite countertops and floors, and generous storage. A powder room is discreetly located off the main gallery. The private quarters are anchored by an impressive corner primary suite. Oversized windows capture beautiful Central Park and open northern views, while refined fabric wall coverings and custom carpeting create a serene atmosphere. The suite includes an extensive dressing area, a 12-foot walk-in closet, and a luxurious primary bathroom finished in richly patterned onyx, a large soaking tub, and a separate glass-enclosed shower. The generously proportioned second bedroom offers open eastern city views, excellent closet space, and a newly renovated en-suite marble bathroom with a shower. Additional features include a substantial laundry and utility room, extensive storage, central air conditioning, and a sophisticated recessed lighting plan. Ceiling heights are just under 10 feet, with dropped sections thoughtfully designed to accommodate the integrated lighting and mechanical systems. Completed to an exceptionally high standard, this distinguished full-floor residence offers grand entertaining spaces and mesmerizing Central Park views in one of Fifth Avenue’s most desirable locations. Cash purchases only; financing is not permitted. There are no summer work restrictions. Purchases in trust are considered on a case-by-case basis, subject to Board approval. A storage room in the basement is included.
Features & Amenities
Interior 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
623
Median Asking Price
$1.64M
Median $/Sqft
$1,587
Avg Days on Market
N/A
New This Week
50
Price Reduced
27%
Sold (30 Days)
82
Median Sale Price
$1.32M
Live data from RLS at REBNY • Updated 9/23/26, 6:44 PM EST
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Location
817 5th Avenue #7, 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 common charges are $9,042 per month. Confirm the exact amount with Milton Coste before making an offer.
The current listed annual property tax is $59,244, or roughly $4,937 per month. Verify the current assessment with your attorney before closing.
This property has 2 bedrooms and 2 full bathrooms and 1 half bathroom.
The listed interior living area is 3,510 square feet. Verify dimensions independently during due diligence.
According to MLS records, the building was constructed in 1925, making it approximately 101 years old.
This listing is a condominium. Buyers receive a deed to their individual unit and own their space outright, subject to condo association rules.
Pets are permitted at this property. Contact Milton Coste for weight limits or breed restrictions.
At the current list price of $15,500,000 for 3,510 sq ft, the asking price per square foot is approximately $4,416. 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 - Maria Bazo
Listing Contact: (212) 606-7660
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 9/23/2026 at 10:44 PM UTC
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Quick Facts
Monthly Costs Estimate
$3,100,000
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 $15M to $19,999,999 at 3.50%, applied to the whole purchase price. It is due in cash at closing and cannot be financed.
Estimated mansion tax at asking
$542,500
Estimate based on the asking price. Confirm your own obligation with your real estate attorney.
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