Twenty-five years after the September 11th attacks, construction has begun on the final commercial office tower at the World Trade Center. The 55-story, nearly 2-million-square-foot building, designated 2 World Trade Center, broke ground in July and is set to become American Express's new global headquarters when it opens in 2031.

With the commencement of 2 World Trade Center, every site on the 16-acre campus will either be finished or under construction, according to the Port Authority of New York and New Jersey. Developer Larry Silverstein, who purchased the lease for the original Twin Towers in 2001, stated, "After 9/11, I made a promise to New Yorkers that we would rebuild the World Trade Center, commemorate those we lost [and] restore commerce to Lower Manhattan."

A Long Road to Completion

The path to constructing 2 World Trade Center has been lengthy, spanning over two decades and involving a complex insurance dispute and extensive bureaucratic hurdles. Following the 2001 purchase of the Twin Towers lease for $3.2 billion, Silverstein engaged in a five-year legal battle with more than 20 insurance companies over payouts. This dispute was resolved after then-Gov. Eliot Spitzer intervened.

The initial funds, supplemented by federal Liberty Bonds, were first directed towards rebuilding 7 World Trade Center, One World Trade Center, and 3 and 4 World Trade Center. These projects were crucial for demonstrating the site's viability and attracting tenants before further speculative construction could be financed. The process was further complicated by the Port Authority's ownership of the land and oversight from 19 different government agencies.

American Express Leads the Way

The major turning point arrived this year when American Express committed to being the anchor tenant for the entire building. This commitment provided Silverstein Properties with the necessary guarantee to secure financing. While excavation and foundation work for 2 World Trade Center were completed in 2013 in conjunction with the construction of the Oculus transit hub, the current groundbreaking signifies the start of vertical construction.

American Express will not only anchor the new tower but will also own it outright, making it the only building on the World Trade Center site that Silverstein will not lease. This move represents a return to Lower Manhattan for the company, which has been headquartered nearby for nearly 40 years and has roots in the area dating back almost two centuries. Denise Pickett, President of Enterprise Shared Services at American Express, noted at the groundbreaking, "When many questioned what the future would hold, American Express chose to stay. [With the tower] we reaffirm that choice, and our confidence in the future of this remarkable neighborhood, by building here once again."

The new 55-story tower is designed to accommodate up to 10,000 employees, with its distinctive features including over an acre of outdoor terraces and gardens integrated throughout the structure. Interior plans are still being finalized, with the next major milestone being the topping out, anticipated around 2029.

Site 5 Remains Unresolved

Meanwhile, 5 World Trade Center, planned as a residential tower with approximately 1,200 units on the site of the former Deutsche Bank building, remains stalled. Rising construction costs, which one Port Authority official attributed partly to instability in the Middle East, have created financial challenges. The Port Authority has stated its commitment to delivering a world-class tower at Site 5, with a goal of one-third of the units being affordable. Silverstein Properties is working with the Port Authority to find a path forward, but a definitive timeline has not yet been established. A rendering of 5 World Trade Center which will be fully residential.

Dara McQuillan, chief marketing and communications officer for Silverstein Properties, expressed the significance of completing the final office building, stating, "There’s an enormous amount of pride in not just working at the World Trade Center, but completing the final office building here is of major significance."