Construction is climbing higher on JPMorgan Chase‘s 1,388-foot supertall headquarters at 270 Park Avenue in Midtown East. Designed by Lord Norman Foster of Foster + Partners with Adamsom Associates as the architect of record and developed by Tishman Speyer, the 60-story skyscraper will yield 2.5 million square feet of office space with a capacity of 15,000 employees, and will become the tallest structure in New York completely powered by hydroelectric energy. AEOCOM Tishman is the general contractor for the full-block property, which is 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.

Crews have assembled more office levels of the steel superstructure since our last update in early May, when construction had just reached the top of the second and tallest section in 270 Park Avenue’s five-tiered massing. A tower crane has been disassembled since springtime, leaving just two remaining in service. Recent photos show progress hovering around the 45th floor, which is roughly the midway point of the third tier. Crews will soon reach the 300-meter (984-foot) supertall mark before transitioning to the final two tiers, which have some of the tallest ceiling spans of the remaining 15 levels. Many of these final stories will be reserved for mechanical space. Based on the pace of progress and the reduced size of the upper floor plates, topping out could likely happen before the end of the year.

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