For the third consecutive year, the tallest building on our annual construction countdown is 270 Park Avenue, JPMorgan Chase’s 1,389-foot supertall headquarters in Midtown East, Manhattan. Designed by Norman Foster of Foster + Partners with Adamson 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. The property occupies a full city 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.