--- title: "850 Park Avenue #9C, New York City, NY 10075" description: "850 Park Avenue #9C, New York City, NY 10075 — Lenox Hill, New York City, NY. Listing Price $4,495,000. 3 bed, 3 bath Illustrative Buyer Commission Share of $67,425 at closing, based on a 3% buyer-broker commission." url: "https://realestaterebatesnewyork.com/buy/newyorkcity/manhattan/10075/850-park-avenue-9c-ny-10075" source: "Real Estate Rebate Team" dateModified: "2026-08-27T18:53:36.823Z" status: "Active" --- # 850 Park Avenue #9C, New York City, NY 10075 Lenox Hill, New York City, NY Courtesy of Compass Last updated: August 27, 2026, 2:53 PM ## At a Glance - **Listing Price**: $4,495,000 - **Beds**: 3 - **Total Baths**: 3 - **Common Charges**: $6,770 / mo - **Brokerage Fee**: Share Eligible ## The Private Brokerage Advantage As an independent luxury buyer representative, Régis shares 50% of the buyer-side commission he actually receives on your purchase. Eligible buyers receive that Buyer Commission Share directly at closing to offset closing costs, down payments, or renovations. The figures below are illustrative, based on a **3% buyer-broker commission**; your share follows the commission offered on the transaction. - **Contract Purchase Price**: $4,495,000 - **Illustrative Buyer Commission Share**: -$67,425* - **Illustrative Net Cost**: $4,427,575 *Illustrative Buyer Savings of $67,425 — 50% of a 3% buyer-broker commission, shared at closing.* [Request a private tour](https://realestaterebatesnewyork.com/contact) · [Estimate your Buyer Commission Share](https://realestaterebatesnewyork.com/calculators/buyer-closing-cost-calculator) ## Photos (10) ![850 Park Avenue #9C, New York City, NY 10075 — photo 1 of 10](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/df75f20d-2bef-4015-9f37-7be4101998a7.jpg) ![850 Park Avenue #9C, New York City, NY 10075 — photo 2 of 10](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/3fbf8fb6-626a-41eb-a30d-705ac7f85508.jpg) ![850 Park Avenue #9C, New York City, NY 10075 — photo 3 of 10](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/088373b6-deb0-43a2-8141-26b253d2e31c.jpg) ![850 Park Avenue #9C, New York City, NY 10075 — photo 4 of 10](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/b87e82da-c9c6-42e0-9975-10d95e9c6ec7.jpg) ![850 Park Avenue #9C, New York City, NY 10075 — photo 5 of 10](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/f8ad43d2-8f18-447e-a276-07a589c43d82.jpg) ![850 Park Avenue #9C, New York City, NY 10075 — photo 6 of 10](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/b78ff8dc-2c73-4ba6-b7d3-d653d16dcf87.jpg) ![850 Park Avenue #9C, New York City, NY 10075 — photo 7 of 10](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/6feda8cf-071f-4200-8888-56ba3c759a58.jpg) ![850 Park Avenue #9C, New York City, NY 10075 — photo 8 of 10](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/7f655707-82f4-445e-aea9-f4a8953e223f.jpg) ![850 Park Avenue #9C, New York City, NY 10075 — photo 9 of 10](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/4ddba8fd-c760-43f9-aa72-f88edc252599.jpg) ![850 Park Avenue #9C, New York City, NY 10075 — photo 10 of 10](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/5b282f8e-53b0-4f93-8dc6-409d674d8c64.jpg) ## Property Overview 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 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. ## Property Details - **Property Type**: Co-op - **Beds**: 3 - **Total Baths**: 3 - **Rooms**: 7 - **Stories**: 12 - **Year Built**: 1924 - **Common Charges**: $6,770.27 / Monthly - **Listed On**: Aug 24, 2026 - **Days on Market**: 22 Days ### Residence Features - Central - Building Washer Dryer Install Allowed - Common On Floor - Common Area - Laundry Room - In Unit - Building Courtyard - Breakfast Bar - Crown Molding - Entrance Foyer - Eat-in Kitchen - High Ceilings - Walk-In Closet(s) - Cooktop - Dishwasher - Wine Cooler - Hardwood ## Sales Evidence ### Recent closed sales 9 apartments at 850 Park Avenue have recorded sales since September 2021, the most recent for $1,150,000 in April 2026. Prices are the figures recorded with the City, not asking prices. | Unit | Beds | Sold Price | Sold | Source | | --- | --- | --- | --- | --- | | 1DR (Apartment) | 2 | $1,150,000 | April 21, 2026 | City record · MLS | | 7D (Apartment) | 4 | $5,200,000 | October 23, 2024 | City record · MLS | | 5B (Apartment) | — | $6,000,000 | February 22, 2024 | City record | | 1D (Apartment) | 1 | $1,425,000 | November 30, 2023 | City record · MLS | | 7B (Apartment) | 2 | $3,650,000 | February 6, 2023 | City record · MLS | | 10A (Apartment) | 4 | $2,995,000 | October 12, 2022 | City record · MLS | | 4A (Apartment) | 3 | $4,000,000 | March 7, 2022 | City record · MLS | | 8B (Apartment) | 3 | $7,500,000 | November 4, 2021 | City record · MLS | | 6C (Apartment) | 4 | $4,200,000 | October 6, 2021 | City record · MLS | Every row is a recorded transaction, including ancillary spaces such as storage and staff rooms where they were sold separately. Those are excluded from the benchmark below. ### How this price compares The median closed price for comparable co-op three-bedroom sales in Lenox Hill is $2,583,500, based on 162 sales between September 2024 and July 2026. This home is asking $4,495,000, $1,911,500 above that median. The middle half of those sales closed between $1,806,250 and $3,507,500. - **Median closed price**: $2,583,500 - **Middle half**: $1,806,250 – $3,507,500 - **Based on**: 162 co-op three-bedroom sales in Lenox Hill - **Period**: September 2024 – July 2026 Square footage is recorded for only 41 of these 162 sales (25%), so no price per square foot is shown for this group. Co-op sales rarely carry a floor area, and a figure drawn from a handful of them would not describe the rest. Across the 157 of these sales with a published asking price, the median closed at 94.6% of what it originally asked. 73% of them closed below the original ask. This building has not had enough comparable sales of its own in the period to support a median, so the benchmark is drawn from Lenox Hill instead. ### How these sales were negotiated - **Sold vs original ask**: 94.6% of the original ask - **Closed below ask**: 73% of 157 sales - **Listed → in contract**: 69 days (about 10 weeks) - **In contract → closed**: 101 days (about 14 weeks) Across the 157 of these sales with a published asking price, the median closed at 94.6% of what it originally asked. 73% of them closed below the original ask. Half of these homes were in contract within 69 days (about 10 weeks) of coming to market, based on the 154 with a recorded listing date. Once a deal was agreed, closing took a further 101 days (about 14 weeks), based on the 157 with both dates recorded. A co-op board package and its interview account for much of that. These are two separate periods measured on different clocks — time to find a buyer, and time from agreed deal to closing. They are medians of different sets of sales and do not add together into a single "days on market" figure. Based on 162 co-op three-bedroom sales in Lenox Hill, September 2024 – July 2026. Each figure counts only the sales that recorded the dates it needs, which is why the denominators differ. ### Price trend Median sold price for co-op three-bedroom sales in Lenox Hill, 2016 to 2026. The series is held to one bedroom count and one ownership type for the same reason: an unfiltered median tracks which apartments sold, not what they were worth. | Year | Median sold price | Sales | | --- | --- | --- | | 2016 | $2,397,500 | 12 | | 2017 | $2,500,000 | 59 | | 2018 | $2,572,500 | 54 | | 2019 | $2,282,119 | 80 | | 2020 | $2,167,500 | 38 | | 2021 | $2,202,500 | 96 | | 2022 | $2,475,000 | 108 | | 2023 | $2,250,000 | 90 | | 2024 | $2,460,000 | 72 | | 2025 | $2,550,000 | 90 | | 2026 | $2,673,000 | 55 | This building does not have enough sales with a recorded floor area to chart its own price per square foot, which is usual for a co-op. The series above follows comparable homes across Lenox Hill instead. Sale prices are the consideration recorded with the City in ACRIS, and each sale is dated by the day the City recorded it. A closing date reported to the MLS typically falls one to two weeks earlier. Recorded sales describe what has already happened and are not an appraisal, a valuation, or an estimate of what this home will sell for. [See every recorded sale at 850 Park Avenue](https://realestaterebatesnewyork.com/buildings/new-york-city/manhattan/850-park-avenue) ## Price and Property History for 850 Park Avenue, Unit 9C Review the recorded listing activity for 850 Park Avenue, Unit 9C, including asking-price changes and prior market dates. - **Last sold (recorded)**: $3,300,000 on July 30, 2015 | Date | Price | Listing event | | --- | --- | --- | | July 30, 2015 | $3,300,000 | Sold — recorded sale price | | April 7, 2015 | $3,650,000 | Asking price reduced by $145,000, or 3.8% | | February 12, 2015 | $3,795,000 | Listed for sale by Elliman | ## Property Taxes This apartment is part of a co-op that is taxed as one lot shared across 51 apartments. The corporation’s 2026 property tax bill was $2,304,660 for the whole building. Shareholders cover it through their monthly maintenance rather than a separate bill for this unit. [See the full property tax history for 850 Park Avenue](https://realestaterebatesnewyork.com/buildings/new-york-city/manhattan/850-park-avenue) [How we source and calculate NYC property tax data](https://realestaterebatesnewyork.com/nyc-property-tax-data-methodology) ## About The Building ### 850 Park Avenue Lenox Hill · Stock Cooperative 850 Park Avenue, New York, NY 10075 A building in Lenox Hill, currently featuring 2 active listings. - **Year Built**: 1914 - **Total Units**: 2 - **Floors**: 12 [View the building page](https://realestaterebatesnewyork.com/buildings/new-york-city/manhattan/850-park-avenue) ### Available Residences — For Sale (2) | Unit | Beds | Baths | Size | Price / Ft² | Price | Listing Office | Listed Date | Days on Market | | --- | --- | --- | --- | --- | --- | --- | --- | --- | | [9C](https://realestaterebatesnewyork.com/buy/newyorkcity/manhattan/10075/850-park-avenue-9c-ny-10075) | 3 | 3 | — | — | $4,495,000 | Compass | Aug 24, 2026 | 22 days | | [5D](https://realestaterebatesnewyork.com/buy/newyorkcity/manhattan/10075/850-park-avenue-5d-ny-10075) | 4 | 4 | — | — | $5,450,000 | Corcoran Group | Mar 12, 2026 | 187 days | ## Estimated Monthly Payment **$29,499 / month**, assuming a 20% down payment ($899,000), a 6.5% interest rate and a 30-year term. The page's calculator lets a buyer change all three. - **Principal & Interest**: $22,729 - **Common Charges**: $6,770 Estimates only. Actual payments may vary. Confirm terms with your lender. ## Potential NYC Second-Home Tax This property may be subject to New York City’s non-primary residence surcharge if it is not used as a qualifying primary residence. The surcharge is based on the NYC Department of Finance market value, not the listing price. [Estimate the Potential Surcharge](https://realestaterebatesnewyork.com/calculators/nyc-second-home-tax-calculator) ## Lenox Hill Overview of Lenox Hill [Explore Lenox Hill](https://realestaterebatesnewyork.com/neighborhoods/new-york-city/manhattan/lenox-hill) · [All Neighborhoods](https://realestaterebatesnewyork.com/neighborhoods) ### Nearby Lenox Hill - [Inwood real estate for sale](https://realestaterebatesnewyork.com/neighborhoods/new-york-city/manhattan/inwood) ## Related Links - [850 Park Avenue — building page](https://realestaterebatesnewyork.com/buildings/new-york-city/manhattan/850-park-avenue) - [Lenox Hill neighborhood guide](https://realestaterebatesnewyork.com/neighborhoods/new-york-city/manhattan/lenox-hill) - [Estimate your Buyer Commission Share and closing costs](https://realestaterebatesnewyork.com/calculators/buyer-closing-cost-calculator) - [Contact Régis Roumila](https://realestaterebatesnewyork.com/contact) --- > RLS IDX Data display by Real Estate Rebate Team. This 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. IDX information is provided exclusively for consumers’ personal, non-commercial use and it may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. > All information furnished regarding property for sale, rental or financing is from sources deemed reliable, but no warranty or representation is made as to the accuracy thereof and same is submitted subject to errors, omissions, change of price, rental or other conditions, prior sale, lease or financing or withdrawal without notice. All dimensions are approximate. For exact dimensions, you must hire your own architect or engineer and the number of bedrooms listed is for informational purposes and is not a legal conclusion. Please consult with your own architect or engineer for exact dimensions and legal specifications.