Under Contract – Backup offers may be accepted
829 PARK Avenue #10B
MLS® #RLS20081660
Listing by Brown Harris Stevens Residential Sales LLC
3
Bedrooms
3
Baths
N/A
Sq. Ft.
1909
Year Built
Quick Summary
Property Highlights
- Climate Control: Other
- Character: Pre-war building (1909)
Property Details
Listing History
| Event | Date | Price | Change |
|---|---|---|---|
| Listed | Apr 6, 2026 | $2,850,000 | - |
| Currently | Jun 1, 2026 | $2,850,000 | - |
Description
High above Park Avenue, featuring soaring ceilings, views of the tree-lined avenue and the iconic Carlyle Hotel through expansive living room windows, and offering three bedrooms (flex four), a private landing, and three bathrooms, apartment 10B embodies the pre-war elegance and grace of a classic Upper East Side duplex. Apartment 10B also provides an open canvas for your imagination to create the home of your dreams.
From the private elevator landing, an entry gallery leads to the sun-drenched corner great room measuring nearly 30 feet, which highlights a wood-burning fireplace, original hardwood floors, and six oversized windows directly over Park Avenue. The 10'3" ceilings-both downstairs and upstairs-lend to the airy, sunny atmosphere of an apartment that feels more like a private home than a Manhattan apartment.
Off the grand living room is a dining area adjacent to a windowed kitchen. Three bedrooms and two full bathrooms are located upstairs. The corner primary bedroom faces west, with a large window overlooking Park Avenue.
Options for new configurations include expanding the kitchen into a large eat-in chef's kitchen, adding a fourth bedroom and a home office in the former downstairs staff rooms, and combining two of the three upstairs bedrooms into a spacious primary suite with a dressing or lounging area.
Built in 1909, this preeminent pre-war co-op features a full-time doorman, a stately high-ceilinged lobby with original marble floors, a live-in resident manager, private storage, and a state-of-the-art fitness center, completely renovated and upgraded in 2024. The building allows pets and 50% financing. There is a 2% flip tax.
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
648
Median Asking Price
$1.31M
Median $/Sqft
$1,367
Avg Days on Market
N/A
New This Week
30
Price Reduced
33%
Sold (30 Days)
46
Median Sale Price
$1.20M
Live data from RLS at REBNY • Updated 6/1/26, 2:17 PM EST
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Location
829 PARK Avenue #10B, 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)
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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 monthly maintenance are $8,434 per month. Confirm the exact amount with the listing broker before making an offer.
This property has 3 bedrooms and 3 full bathrooms.
According to MLS records, the building was constructed in 1909, making it approximately 117 years old.
This listing is a co-op (stock cooperative). Buyers purchase shares in a corporation rather than real property, and the board must approve all sales.
Pets are permitted at this property: No Restrictions,Building Pets Allowed Comments:No Restrictions. Contact the listing broker 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 Brown Harris Stevens Residential Sales LLC - Katharine F Tuckerman
Listing Contact: (212) 906-9228
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 6/1/2026 at 6:17 PM UTC