--- title: "404 East 66th Street #4-C, New York City, NY 10065" description: "404 East 66th Street #4-C, New York City, NY 10065 — Upper East Side, New York City, NY. Listing Price $600,000. Studio bed, 1 bath, 537 sqft Illustrative Buyer Commission Share of $9,000 at closing, based on a 3% buyer-broker commission." url: "https://realestaterebatesnewyork.com/buy/newyorkcity/manhattan/10065/404-east-66th-street-4c-ny-10065" source: "Real Estate Rebate Team" dateModified: "2026-09-23T20:27:20.788Z" status: "Active" --- # 404 East 66th Street #4-C, New York City, NY 10065 Upper East Side, New York City, NY Courtesy of William Raveis New York City LLC Last updated: September 23, 2026, 4:27 PM ## At a Glance - **Listing Price**: $600,000 - **Beds**: Studio - **Baths**: 1 - **Sqft**: 537 - **Common Charges**: $598 / mo - **Monthly Taxes**: $478 / mo - **Price per Sqft**: $1,117 - **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**: $600,000 - **Illustrative Buyer Commission Share**: -$9,000* - **Illustrative Net Cost**: $591,000 *Illustrative Buyer Savings of $9,000 — 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 (8) ![404 East 66th Street #4-C, New York City, NY 10065 — photo 1 of 8](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/ff5b97c7-f7eb-4d9b-bd8c-818bd78dbb09.jpg) ![404 East 66th Street #4-C, New York City, NY 10065 — photo 2 of 8](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/75e37bb9-d974-45a8-afd1-98065e58cb7a.jpg) ![404 East 66th Street #4-C, New York City, NY 10065 — photo 3 of 8](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/0e68ca41-8900-484d-9604-b9fb6982d2c1.jpg) ![404 East 66th Street #4-C, New York City, NY 10065 — photo 4 of 8](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/a99a9e6d-65bd-415e-add6-d323d1eb0cc8.jpg) ![404 East 66th Street #4-C, New York City, NY 10065 — photo 5 of 8](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/9f5ffec3-d573-4136-ac73-dbf558bf3679.jpg) ![404 East 66th Street #4-C, New York City, NY 10065 — photo 6 of 8](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/07b8b5e3-9269-40c8-acc1-1da042516974.jpg) ![404 East 66th Street #4-C, New York City, NY 10065 — photo 7 of 8](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/b48c5b61-bfc5-40e9-9d4c-81f3c53599de.jpg) ![404 East 66th Street #4-C, New York City, NY 10065 — photo 8 of 8](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/8fc28812-3458-4ecc-921a-2b738ec9dcc2.jpg) ## Property Overview This bright and spacious alcove studio offers a versatile layout, beautiful south-facing garden views, refinished hardwood floors, and abundant storage throughout. The welcoming entry foyer features three generous closets and leads to a sleek galley kitchen with stone countertops and stainless-steel appliances, including a drawer dishwasher and garbage disposal. The expansive main room comfortably accommodates distinct living and dining areas. Tucked within the sleeping alcove, a discreet queen-size Murphy bed can be easily concealed to maximize space for everyday living and entertaining. The flexible floor plan also offers the potential to create a one-bedroom with an en-suite bathroom. A full wall of south-facing windows fills the apartment with natural light while overlooking the building’s peaceful common garden. The renovated bathroom is appointed with a Toto vanity and toilet, and a walk-in closet provides additional storage. The Hardenbrook House is a full-service condominium ideally situated in the heart of Lenox Hill. Amenities include a 24-hour doorman, landscaped courtyard, central laundry room, and renovated common areas. The building is conveniently located near excellent restaurants, shopping, and subway transportation. ## Property Details - **Property Type**: Condominium - **Baths**: 1 - **Rooms**: 2 - **Sqft**: 537 sqft - **Stories**: 14 - **Year Built**: 1960 - **Price per Sqft**: $1,117 - **Common Charges**: $598 / Monthly - **Monthly Taxes**: $478 / mo - **Listed On**: Sep 15, 2026 - **Days on Market**: 21 Days ### Residence Features - Common Area - Building Storage - Building Garden - Private Outdoor Space Under 60 Sqft - Entrance Foyer ## Estimated Monthly Payment **$4,110 / month**, assuming a 20% down payment ($120,000), a 6.5% interest rate and a 30-year term. The page's calculator lets a buyer change all three. - **Principal & Interest**: $3,034 - **Property Taxes**: $478 - **Common Charges**: $598 Estimates only. Actual payments may vary. Confirm terms with your lender. ## Sales and market data ### Recent sales 24 apartments at Hardenbrook House have recorded sales since October 2021, the most recent for $770,000 in March 2026. Prices are the figures recorded with the City, not asking prices. | Unit | Beds | Sq Ft | Sold Price | $/ft² | Sold | Source | | --- | --- | --- | --- | --- | --- | --- | | 1G (Apartment) | — | 877 | $770,000 | $878/ft² | March 16, 2026 | City record | | 7C (Apartment) | — | 537 | $620,000 | $1,155/ft² | May 21, 2025 | City record | | 2B (Apartment) | Studio | 560 | $560,000 | $1,000/ft² | March 11, 2025 | City record · MLS | | 3H (Apartment) | — | 874 | $650,000 | $744/ft² | February 28, 2025 | City record | | 2A (Apartment) | 1 | 721 | $690,000 | $957/ft² | December 18, 2024 | City record · MLS | | 6H (Apartment) | 1 | 875 | $795,000 | $909/ft² | October 21, 2024 | City record · MLS | | 4N (Apartment) | 1 | 700 | $700,000 | $1,000/ft² | June 28, 2024 | City record · MLS | | 4E (Apartment) | 2 | 1,200 | $1,300,000 | $1,083/ft² | June 26, 2024 | City record · MLS | | 1F (Apartment) | Studio | 551 | $499,000 | $906/ft² | June 25, 2024 | City record · MLS | | 10E (Apartment) | — | 1,180 | $1,515,000 | $1,284/ft² | May 28, 2024 | City record | | 8D (Apartment) | — | 888 | $873,000 | $983/ft² | October 31, 2023 | City record | | 6R (Apartment) | — | 450 | $528,000 | $1,173/ft² | September 15, 2023 | City record | | 3P (Apartment) | — | 711 | $725,000 | $1,020/ft² | March 20, 2023 | City record | | 10E (Apartment) | — | 1,180 | $1,140,000 | $966/ft² | March 16, 2023 | City record | | 1B (Apartment) | Studio | 560 | $515,000 | $920/ft² | February 24, 2023 | City record | | 7-E (Apartment) | 2 | 1,180 | $1,225,000 | $1,038/ft² | December 16, 2022 | City record · MLS | | 4G (Apartment) | 3 | 1,196 | $1,475,000 | $1,233/ft² | December 7, 2022 | City record · MLS | | 2G (Apartment) | 2 | 1,196 | $299,000 | $250/ft² | August 17, 2022 | City record | | 12-H (Apartment) | Studio | 600 | $610,000 | $1,017/ft² | July 19, 2022 | City record · MLS | | 5H (Apartment) | 1 | 874 | $820,000 | $938/ft² | May 26, 2022 | City record | | 12J (Apartment) | 1 | 732 | $890,000 | $1,216/ft² | April 11, 2022 | City record · MLS | | 6D (Apartment) | — | 888 | $832,500 | $938/ft² | February 9, 2022 | City record | | 11G (Apartment) | 2 | 1,360 | $2,125,000 | $1,563/ft² | December 23, 2021 | City record · MLS | | 12J (Apartment) | 1 | 732 | $670,000 | $915/ft² | October 12, 2021 | City record | 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 - **This home**: $600,000 - **Median sold price**: $537,500 - **Difference**: +$62,500 (+11.6%) - **This home, $/ft²**: $1,117 - **Median $/ft²**: $960 - **Comparable sales**: 4 - **Sales from**: July 2022 – March 2025 - **Middle half of those sales**: $511,000 – $572,500 Based on studio sales at Hardenbrook House. ### How these sales were negotiated - **Typical time to find a buyer**: 48 days (3 sales) - **Typical time to close**: 76 days (3 sales) Based on studio sales at Hardenbrook House with the required listing and closing data. Sample sizes vary by metric. 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. ### Price trend Median price per square foot, sales at Hardenbrook House | Year | Median $/ft² | Sales | | --- | --- | --- | | 2017 | $1,114/ft² | 5 | | 2018 | $1,186/ft² | 3 (thin) | | 2019 | $1,189/ft² | 5 | | 2020 | $1,179/ft² | 4 (thin) | | 2021 | $1,061/ft² | 6 | | 2022 | $1,017/ft² | 7 | | 2023 | $983/ft² | 5 | | 2024 | $979/ft² | 6 | | 2025 | $1,000/ft² | 3 (thin) | Based on recorded sales at Hardenbrook House. Years marked "thin" rest on fewer than 5 sales, where a single unusual apartment moves the median a long way. Read those points as the small samples they are rather than as the market turning. Sales data through March 2026. 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 Hardenbrook House](https://realestaterebatesnewyork.com/buildings/new-york-city/manhattan/hardenbrook-house) ## Property Tax History Taxes at 404 East 66th Street #4-C were $7,310 in 2026, up 13.6% from 2025. | Year | Tax Assessment | Land | Additions | Billable Value | Property Tax | Tax Rate | | --- | --- | --- | --- | --- | --- | --- | | 2026 (FY 2026/27) | $59,284 | $10,563 | $48,721 | $58,481 | $7,310 | 12.5% (estimated) | | 2025 (FY 2025/26) | $62,579 | $10,563 | $52,016 | $57,484 | $6,433 | 12.5% (estimated) | | 2024 (FY 2024/25) | $58,358 | $10,563 | $47,795 | $57,000 | $6,339 | 12.5% | | 2023 (FY 2023/24) | $56,944 | $10,563 | $46,381 | $56,026 | $6,218 | 12.502% | | 2022 (FY 2022/23) | $55,247 | $10,563 | $44,684 | $54,437 | $3,276 | 12.267% | | 2021 (FY 2021/22) | $54,298 | $10,563 | $43,735 | $52,064 | $3,112 | 12.235% | | 2020 | The City did not publish assessment data for this year. | — | — | — | — | — | | 2019 | The City did not publish assessment data for this year. | — | — | — | — | — | | 2018 (FY 2018/19) | $51,870 | $10,563 | $41,307 | $45,188 | $5,390 | 12.612% | | 2017 (FY 2017/18) | $52,726 | $10,563 | $42,163 | $46,022 | $5,564 | 12.719% | | 2016 (FY 2016/17) | $51,154 | $10,563 | $40,591 | $43,162 | $5,260 | 12.892% | | 2015 (FY 2015/16) | $45,390 | $10,563 | $34,827 | $40,351 | $4,896 | 12.883% | | 2014 (FY 2014/15) | $41,911 | $10,563 | $31,348 | $38,581 | $4,657 | 12.855% | | 2013 (FY 2013/14) | $38,955 | $10,563 | $28,392 | $37,147 | $4,587 | 13.145% | | 2012 (FY 2012/13) | $38,419 | $10,563 | $27,856 | $35,874 | $4,729 | 13.181% | | 2011 (FY 2011/12) | $42,366 | $10,563 | $31,803 | $35,761 | $4,804 | 13.433% | | 2010 (FY 2010/11) | $39,774 | $10,563 | $29,211 | $34,060 | $4,548 | 13.353% | The City has not published the official FY2026/27 and FY2025/26 tax rates yet. We calculated the tax for those years using the prior year’s rate, so treat them as an estimate rather than a figure the City has adopted. Every rate without the Estimated marker is the published one. Tax Assessment is the assessed value on the City’s roll, and it is the figure other listing sites publish. It is not what the bill is calculated on. New York phases assessment changes in gradually for some tax classes, so the City bills the Billable Value shown beside it, less any exemption the owner holds. It usually trails the assessment, and it can sit above it for a few years after an assessment falls. Figures are the New York City Department of Finance assessment roll for tax lot 1014601033. Assessed and billable values are determined by the City for tax purposes and are not an appraisal or an estimate of market value. Tax classes and rates are set annually and can change. [How we source and calculate NYC property tax data](https://realestaterebatesnewyork.com/nyc-property-tax-data-methodology) ## About The Building ### Hardenbrook House 404 East 66th Street, New York, NY 10065 A building in the neighborhood, currently featuring 1 active listing. - **Year Built**: 1960 - **Active Units**: 1 - **Floors**: 14 [View the building page](https://realestaterebatesnewyork.com/buildings/new-york-city/manhattan/hardenbrook-house) ### Available Residences — For Sale (2) | Unit | Beds | Baths | Size | Price / Ft² | Price | Listing Office | Listed Date | Days on Market | | --- | --- | --- | --- | --- | --- | --- | --- | --- | | [4-C](https://realestaterebatesnewyork.com/buy/newyorkcity/manhattan/10065/404-east-66th-street-4c-ny-10065) | Studio | 1 | 537 sqft | $1,117 | $600,000 | William Raveis New York City LLC | Sep 15, 2026 | 21 days | | [5H](https://realestaterebatesnewyork.com/buy/newyorkcity/manhattan/10065/404-east-66th-street-h-5H-ny-10065) | 1 | 1 | 894 sqft | $894 | $799,000 (-2.0%) — In contract | Corcoran Group | Jun 3, 2026 | 125 days | ## 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 - [Hardenbrook House — building page](https://realestaterebatesnewyork.com/buildings/new-york-city/manhattan/hardenbrook-house) - [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.