For Sale · Listing by Compass
850 Park Avenue #9C
Lenox Hill, Manhattan
$4,495,000
850 Park Avenue #9C
MLS® #RLS20104953
Listing by Compass
Open House Scheduled
Wednesday, August 26 • 2:00 PM – 4:00 PM
REBNY 2025: signed Buyer Representation Agreement required before any showing.
- 3
- Bedrooms
- 2.5
- Baths
- N/A
- Sq. Ft.
- 1924
- Year Built
Quick Summary
Property Highlights
- Exposure: North,South facing
- Fireplace: 1 fireplace
- Climate Control: Other
Property Details
Listing History
| Event | Date | Price | Change |
|---|---|---|---|
| Listed | Aug 24, 2026 | $4,495,000 | - |
| Currently | Aug 24, 2026 | $4,495,000 | - |
Description
Perfectly positioned in one of Park Avenue's most prestigious pre-war cooperatives, Residence 9C is a meticulously renovated seven-room home that seamlessly blends timeless architectural grandeur with the finest modern amenities. Accessed via a semi-private elevator landing, this exceptional residence offers an elegant lifestyle in one of the Upper East Side's most coveted white-glove buildings. A gracious entrance foyer introduces the home's remarkable scale, highlighted by soaring 11.5-foot ceilings, oversized windows, beautifully proportioned rooms, and impeccable craftsmanship throughout. Every detail of the renovation has been thoughtfully executed, preserving the home's classic pre-war character while elevating it for contemporary living. The sun-filled living and dining rooms are beautifully scaled for entertaining. The expansive living room is anchored by a working wood-burning fireplace, creating a warm and inviting atmosphere, while the formal dining room comfortably accommodates large gatherings. A sophisticated powder room just off the foyer completes the home's gracious entertaining spaces. At the heart of the residence is a spectacular Christopher Peacock eat-in chef's kitchen, masterfully expanded to incorporate the former staff room. Designed for both everyday living and effortless entertaining, the windowed kitchen features striking Calacatta Gold marble countertops, a Wolf gas range with custom hood, and a suite of premium appliances including Sub-Zero refrigerator and freezer columns, a beverage center, microwave, and a full-size washer and dryer. Custom cabinetry and generous pantry storage provide exceptional functionality without compromising elegance. Privately situated in its own wing, the bedroom quarters offer a tranquil retreat. The luxurious primary suite features a beautifully appointed, windowed Waterworks marble bathroom with refined metal detailing, a soaking tub, and plumbing in place for an additional vanity. Two generously sized secondary bedrooms share an equally elegant renovated bath, each finished with the same exceptional level of quality found throughout the home. Additional highlights include beautiful hardwood floors, brand-new windows, updated HVAC and plumbing systems, and a private storage unit that transfers with the apartment—providing every modern convenience while honoring the residence's historic character. Originally built in 1914 by Rouse & Goldstone, 850 Park Avenue is one of the Upper East Side's premier full-service cooperatives. Residents enjoy white-glove service along with an impressive collection of amenities, including a fitness center, laundry room, bike storage, basketball court, landscaped courtyard, and outdoor play area. The building is pet-friendly, permits financing of up to 30%, and has a 2.5% flip tax payable by the purchaser. Ideally situated between 76th and 77th Streets on one of Manhattan's most iconic avenues, Residence 9C offers the very best of Upper East Side living. Just moments from Central Park, residents enjoy immediate access to world-renowned museums, Madison Avenue's luxury boutiques, acclaimed restaurants, charming neighborhood cafés, and convenient transportation. This is a rare opportunity to own an impeccably renovated classic home in one of Park Avenue's most distinguished cooperative buildings.
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
421
Median Asking Price
$1.44M
Median $/Sqft
$1,527
Avg Days on Market
N/A
New This Week
10
Price Reduced
38%
Sold (30 Days)
48
Median Sale Price
$1.04M
Live data from RLS at REBNY • Updated 8/24/26, 2:38 PM EST
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Location
850 Park Avenue #9C, 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 monthly maintenance are $6,770.27 per month. Confirm the exact amount with Milton Coste before making an offer.
The current listed annual property tax is $0, or roughly $0 per month. Verify the current assessment with your attorney before closing.
This property has 3 bedrooms and 2 full bathrooms and 1 half bathroom.
According to MLS records, the building was constructed in 1924, making it approximately 102 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. Contact Milton Coste for weight limits or breed restrictions.
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 Compass - Philip Scheinfeld
Listing Contact: (917) 446-0523
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 8/24/2026 at 6:38 PM UTC
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Quick Facts
Monthly Costs Estimate
$899,000
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 $3M to $4,999,999 at 1.50%, applied to the whole purchase price. It is due in cash at closing and cannot be financed.
Estimated mansion tax at asking
$67,425
Estimate based on the asking price. Confirm your own obligation with your real estate attorney.
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