Memorial Sloan Kettering Files Plans for 31-Story Skyscraper at 1233 York Avenue on Manhattan’s Upper East Side

1233 York Avenue. Designed by CannonDesign and Foster + Partners.

Earlier this week, Memorial Sloan Kettering Cancer Center (MSKCC) filed plans to construct the MSK Pavilion, a new 31-story inpatient hospital building at 1233 York Avenue in the Lenox Hill section of Manhattan’s Upper East Side. Designed in collaboration by CannonDesign and Foster + Partners, the structure could rise up to 594 feet tall and yield 900,000 square feet for inpatient clinical care (cancer care and surgery). The MSK Pavilion will replace an old building housing medical student residences and administrative offices on a plot bound by East 67th Street to the north, East 66th Street to the south, and York Avenue and Rockefeller University to the east.

Zoning documents call for 28 operating suites and 202 inpatient beds, as well as a skybridge over East 67th Street to MSK’s main hospital. Plans for the MSK Pavilion were first announced last spring and were submitted to the Community Board 8 Zoning Committee on Tuesday evening. The zoning diagram above shows the potential size of the new building and its scale over the surrounding neighborhood. A porte cochere is shown spanning between East 66th and East 67th Streets for easier access of ambulatory vehicles.

Memorial Sloan Kettering Cancer Center’s presence on the Upper East Side can be seen in the following map. The MSK Pavilion is the light-blue box at the southern corner of the main campus.

MSK’s Manhattan campus.

The following sectional diagrams break down the use of each floor. Parking space will occupy the three cellar levels, followed by a two-story lobby, 11 floors for surgery, four floors for clinical support, nine levels for inpatient beds, and three mechanical levels. Three other mechanical floors are interspersed throughout the MSK Pavilion’s height. The two-story sky bridge will stand 77 feet above street level and extend 60 feet with gently sloped floors to the Memorial Hospital Building.

1233 York Avenue. Designed by CannonDesign and Foster + Partners.

1233 York Avenue. Designed by CannonDesign and Foster + Partners.

Here we see a diagram looking west with a comparison of the nearby structures in relation to 1233 York Avenue.

1233 York Avenue. Designed by CannonDesign and Foster + Partners.

The below Google Street View image shows the current structure at the property.

Image via Google Maps

Image via Google Maps

If built to its full scope, the MSK Pavilion will become the second-tallest building on the Upper East Side, bested only by Robert A. M. Stern’s 520 Park Avenue on East 60th Street between Park and Madison Avenues.

A projected completion date for the MSK Pavilion has yet to be announced.

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9 Comments on "Memorial Sloan Kettering Files Plans for 31-Story Skyscraper at 1233 York Avenue on Manhattan’s Upper East Side"

  1. Hopefully we can make up for this loss of housing somewhere nearby. The building being torn down had 150 apartments, and if we don’t replace them there will be more displacement in other neighborhoods.

    • Is the existing building MSK staff housing?

    • “if we don’t replace them” or, if the city doesn’t strike a deal with MSK to help to offset the housing….? We aren’t building anything.

      • Where are all the residents going to live?

      • Instead of tearing down a building why not find a block of small buildings buy them out and then tear them down and then build
        It seems odd at best to read down a nice building with 150 units to build a new one.

        Look in the 70’s make generous offers and then vacate the buildings and build. 72nd and 73rd and york have small buildings thst can be purchased. Similar to what is occurring on 3rd avenue in the 1970’s

        • Hmmm… Pretty sure this tower needs to connect to the hospital, so that’s a key issue. Also, if the hospital already owns the existing building it makes sense for them to simple tear it down.

  2. This would be the highest hospital skyscraper in the world

  3. David : Sent From Heaven. | April 1, 2023 at 12:36 am | Reply

    A comparison to nearby structures the tower is getting ready on plans, with its extend 60 feet that make wider to a large area. Surgery and inpatient bed are in a greater amount of floors, and big proportion of a skyscraper in the atmosphere is rising; beautiful relation to a whole: Thanks to Michael Young.

  4. Is parking going to be free for employees is the question.. employees shouldn’t have to pay for parking..

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