--- title: "823 Park Avenue #4th Floor, New York City, NY 10021" description: "823 Park Avenue #4th Floor, New York City, NY 10021 — Upper East Side, New York City, NY. Listing Price $12,750,000. 5 bed, 5 bath, 4,184 sqft Illustrative Buyer Commission Share of $191,250 at closing, based on a 3% buyer-broker commission." url: "https://realestaterebatesnewyork.com/buy/newyorkcity/manhattan/10021/823-park-avenue-4thfloor-ny-10021" source: "Real Estate Rebate Team" dateModified: "2026-09-15T13:30:47.340Z" status: "Active" --- # 823 Park Avenue #4th Floor, New York City, NY 10021 Upper East Side, New York City, NY Courtesy of Sothebys International Realty Last updated: September 15, 2026, 9:30 AM ## At a Glance - **Listing Price**: $12,750,000 - **Beds**: 5 - **Total Baths**: 5 - **Sqft**: 4,184 - **Common Charges**: $9,973 / mo - **Monthly Taxes**: $4,964 / mo - **Price per Sqft**: $3,047 - **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**: $12,750,000 - **Illustrative Buyer Commission Share**: -$191,250* - **Illustrative Net Cost**: $12,558,750 *Illustrative Buyer Savings of $191,250 — 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) ![823 Park Avenue #4th Floor, New York City, NY 10021 — photo 1 of 10](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/27f7be13-2097-4880-b105-ddda98cb2288.jpg) ![823 Park Avenue #4th Floor, New York City, NY 10021 — photo 2 of 10](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/b2f5e1cd-8b6f-4c1c-9042-929e35fabaa6.jpg) ![823 Park Avenue #4th Floor, New York City, NY 10021 — photo 3 of 10](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/61608a6c-2c1c-416a-a3e4-31401bc2afe6.jpg) ![823 Park Avenue #4th Floor, New York City, NY 10021 — photo 4 of 10](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/d43bfef6-5988-4d9a-aed8-788917b52841.jpg) ![823 Park Avenue #4th Floor, New York City, NY 10021 — photo 5 of 10](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/e7e7ca6c-88f6-40d8-b933-899844a8fa0d.jpg) ![823 Park Avenue #4th Floor, New York City, NY 10021 — photo 6 of 10](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/ba77990b-982d-4c2b-8873-fba12a267678.jpg) ![823 Park Avenue #4th Floor, New York City, NY 10021 — photo 7 of 10](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/8e214378-0636-49f5-85ae-c343854dfec2.jpg) ![823 Park Avenue #4th Floor, New York City, NY 10021 — photo 8 of 10](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/68758e44-8934-4ba4-ba5c-ddb8439bd975.jpg) ![823 Park Avenue #4th Floor, New York City, NY 10021 — photo 9 of 10](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/9bc9b061-7a30-4837-b0d5-788f13397de8.jpg) ![823 Park Avenue #4th Floor, New York City, NY 10021 — photo 10 of 10](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/c6092a5a-d8cc-4502-9591-8575f0c85cf4.jpg) ## Property Overview Please note: Showings are Monday through Friday, 1:30-4:30PM. A minimum of 36 hours’ notice is requested. Ideally located on Park Avenue at East 75th Street, this rare and delightful pre-war condominium is defined by its leafy outlooks, generous and elegant entertainment rooms, and thoughtful layout. From a private elevator landing, the Foyer opens into a sweeping Living Room and Library that face west over Park Avenue. These impressive rooms open to one another and are anchored at each end by a gas fireplace. Nearby, there is a handsome Dining Room, currently configured as a Den. Beyond, a bright fully-equipped chef’s Eat-in Kitchen is impeccably renovated in a classic and inviting style with custom cabinets, a panoply of state-of-the-art appliances, gray marble countertops and backsplashes, and very ample storage. A stylish Powder Room completes the very welcoming and generous entertainment rooms in this very chic and pleasant home. Private quarters are serene and pretty. The spacious Primary Bedroom Suite, with abundant closets including a generous dressing closet, and a large marble-clad Bathroom featuring Waterworks fixtures and radiant heated floors. There are four additional Bedrooms and three Baths, two of which are ensuite, as well as very ample closets. Throughout, there are thoughtful and attractive details, as well as the hallmarks of coveted pre-war design, such as herringbone oak floors, 10’ ceilings, a vented laundry room, central air conditioning, and Crestron entertainment system. Built in 1912 and converted to a condominium in 2006, with an extensive renovation by design firm Pickering and Walker, 823 Park Avenue consists of all full-floor residences in an ideal and sought-after location. Residents in this boutique, white glove building benefit from excellent service, with full-time doormen and a live-in resident manager, as well as a fully equipped health club and private storage. Pets are welcome. ## Property Details - **Property Type**: Condominium - **Beds**: 5 - **Total Baths**: 5 - **Rooms**: 9 - **Sqft**: 4,184 sqft - **Stories**: 13 - **Year Built**: 1910 - **Price per Sqft**: $3,047 - **Common Charges**: $9,973 / Monthly - **Monthly Taxes**: $4,964 / mo - **Listed On**: Sep 4, 2025 - **Days on Market**: 377 Days ### Residence Features - Central Air - In Unit - Dryer - Washer/Dryer Stacked - Dishwasher - Washer - Hardwood - City ## Sales Evidence ### Recent closed sales 3 apartments at 823 Park Avenue have recorded sales since September 2021, the most recent for $24,200,000 in December 2025. Prices are the figures recorded with the City, not asking prices. | Unit | Beds | Sq Ft | Sold Price | $/ft² | Sold | Source | | --- | --- | --- | --- | --- | --- | --- | | PH (Apartment) | 5 | 7,200 | $24,200,000 | $3,361/ft² | December 18, 2025 | City record · MLS | | 7 (Apartment) | 5 | 4,200 | $10,750,000 | $2,560/ft² | April 23, 2025 | City record · MLS | | 10 (Apartment) | 5 | 4,184 | $13,500,000 | $3,227/ft² | April 19, 2023 | 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 five-bedroom sales at 823 Park Avenue is $13,500,000, based on 3 sales between April 2023 and December 2025. This home is asking $12,750,000, $750,000 below that median. The middle half of those sales closed between $12,125,000 and $18,850,000. - **Median closed price**: $13,500,000 - **Middle half**: $12,125,000 – $18,850,000 - **Based on**: 3 five-bedroom sales at 823 Park Avenue - **Period**: April 2023 – December 2025 - **Median $/ft²**: $3,227/ft² Across the 3 of these sales with a published asking price, the median closed at 89.6% of what it originally asked. 100% of them closed below the original ask. ### How these sales were negotiated - **Sold vs original ask**: 89.6% of the original ask - **Closed below ask**: 100% of 3 sales - **Listed → in contract**: 202 days (about 29 weeks) - **In contract → closed**: 30 days (about 4 weeks) Across the 3 of these sales with a published asking price, the median closed at 89.6% of what it originally asked. 100% of them closed below the original ask. Half of these homes were in contract within 202 days (about 29 weeks) of coming to market, based on the 3 with a recorded listing date. Once a deal was agreed, closing took a further 30 days (about 4 weeks), based on the 3 with both dates recorded. 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 3 five-bedroom sales at 823 Park Avenue, April 2023 – December 2025. Each figure counts only the sales that recorded the dates it needs, which is why the denominators differ. 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 823 Park Avenue](https://realestaterebatesnewyork.com/buildings/new-york-city/manhattan/823-park-avenue) ## Price and Property History for 823 Park Avenue #4th Floor, Unit 4th Floor Review the recorded listing activity for 823 Park Avenue #4th Floor, Unit 4th Floor, including asking-price changes and prior market dates. | Date | Price | Listing event | | --- | --- | --- | | September 15, 2026 | $12,750,000 | Returned to the market | | August 31, 2026 | $12,750,000 | Listing removed from the market | | August 14, 2025 | $12,750,000 | Listed for sale by Sothebys International Realty | ## About The Building ### 823 Park Avenue Lenox Hill · Condominium 823 Park Avenue, New York, NY 10021 A building in Lenox Hill, currently featuring 2 active listings. - **Year Built**: 1910 - **Total Units**: 2 - **Floors**: 13 [View the building page](https://realestaterebatesnewyork.com/buildings/new-york-city/manhattan/823-park-avenue) ### Available Residences — For Sale (2) | Unit | Beds | Baths | Size | Price / Ft² | Price | Listing Office | Listed Date | Days on Market | | --- | --- | --- | --- | --- | --- | --- | --- | --- | | [4th Floor](https://realestaterebatesnewyork.com/buy/newyorkcity/manhattan/10021/823-park-avenue-4thfloor-ny-10021) | 5 | 5 | 4,184 sqft | $3,047 | $12,750,000 | Sothebys International Realty | Sep 4, 2025 | 377 days | | [5](https://realestaterebatesnewyork.com/buy/newyorkcity/manhattan/10021/823-park-avenue-5-ny-10021) | 5 | 5 | 4,184 sqft | $2,808 | $11,750,000 (-6.0%) | Compass | Jan 7, 2025 | 617 days | ## Estimated Monthly Payment **$79,408 / month**, assuming a 20% down payment ($2,550,000), a 6.5% interest rate and a 30-year term. The page's calculator lets a buyer change all three. - **Principal & Interest**: $64,471 - **Property Taxes**: $4,964 - **Common Charges**: $9,973 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) ## Upper East Side Overview of Upper East Side [Explore Upper East Side](https://realestaterebatesnewyork.com/neighborhoods/new-york-city/manhattan/upper-east-side) · [All Neighborhoods](https://realestaterebatesnewyork.com/neighborhoods) ### Nearby Upper East Side - [Central Park real estate for sale](https://realestaterebatesnewyork.com/neighborhoods/new-york-city/manhattan/central-park) - [Roosevelt Island real estate for sale](https://realestaterebatesnewyork.com/neighborhoods/new-york-city/manhattan/roosevelt-island) - [Upper West Side real estate for sale](https://realestaterebatesnewyork.com/neighborhoods/new-york-city/manhattan/upper-west-side) - [Midtown real estate for sale](https://realestaterebatesnewyork.com/neighborhoods/new-york-city/manhattan/midtown) - [Theater District real estate for sale](https://realestaterebatesnewyork.com/neighborhoods/new-york-city/manhattan/theater-district) - [East Harlem real estate for sale](https://realestaterebatesnewyork.com/neighborhoods/new-york-city/manhattan/east-harlem) ## Related Links - [823 Park Avenue — building page](https://realestaterebatesnewyork.com/buildings/new-york-city/manhattan/823-park-avenue) - [Upper East Side neighborhood guide](https://realestaterebatesnewyork.com/neighborhoods/new-york-city/manhattan/upper-east-side) - [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.