the building's groundbreaking took place in january 2008, and it opened to tenants and the public on november 13, 2013. , it is the third tallest skyscraper at the rebuilt world trade center, behind one and 3 world trade center. however, 2 world trade center is expected to surpass the height of both 3 and 4 wtc upon completion. the total floor space of the building includes 1.8 million square feet (167,000 square meters) of office and retail space.