Construction continues to rise on 270 Park Avenue, JPMorgan Chase‘s 70-story supertall headquarters in Midtown East. Designed by Norman Foster of Foster + Partners and developed by Tishman Speyer, the 1,388-foot-tall skyscraper will yield 2.5 million square feet of office space and set the record for the tallest building in New York to be powered by hydroelectric energy. Banker Steel is in charge of steel fabrication and NYC Constructors is the general contractor for the property, which spans a full block bound by East 48th Street to the north, East 47th Street to the south, Park Avenue to the east, and Madison Avenue to the west.It is expected to have a capacity to hold 15,000 employees.
The superstructure has continued to ascend steadily since our last update in mid-June, and has surpassed the roof level of the prewar building to the south. Patti & Sons has begun fireproofing the steel beams of the lower levels, as noted by the white finish on the first two office floors. This process will continue in step with the rising structure throughout the rest of the year and into 2023.
During our visit, we observed a constant parade of trucks delivering steel and rebar to the site, keeping the two construction cranes in constant motion hoisting the two-story columns and bundles of material up above East 47th Street.
Installation of the floor-to-ceiling glass and façade paneling has yet to commence, but could feasibly begin soon on the floors that have been fireproofed.
The following photo shows the diagonal steel columns two floors away from completing the first and largest diamond of the signature diagrid pattern. Above this peak, the massing will begin to set back from the street on the eastern and western elevations. Four more diamonds and three more setbacks will follow, each reducing in size up to the illuminated crown.
Meanwhile, work is ramping up on the multiple reinforced concrete cores within the base of 270 Park Avenue. The following photos show steel rebar protruding above formwork around the northwestern and southwestern corners behind the flared steel columns. Concrete pours should proceed imminently creating the walls that will surround the vertical trusses, and part of the assembly will be enclosed with large steel plates. The lobby floor will sit above street level, with staircases connecting the space to the sidewalk and ground-floor frontage.
YIMBY last reported that 270 Park Avenue is anticipated to be completed by 2025.