A view of the One World Trade Center in New York November 1, 2014.
A view of the One World Trade Center in New York November 1, 2014.Reuters

Thirteen years after the 9/11 terrorist attacks, the doors of the brand new World Trade Center were finally thrown open to its first tenants on Monday -- without much fanfare.

About 200 Conde Nast employees on Monday occupied their cubicles and offices in the newly built One World Trade Center.

Condé Nast's chief executive, Charles Townsend, told Reuters: "This is a terrific day for Lower Manhattan, a wonderful day for New York City and an absolutely great day for Condé Nast."

Over 3,000 employees of the publishing company, which owns The New Yorker, Vanity Fair and other magazines, will soon occupy floors 20 to 44.

The 104-story, $3.9 billion skyscraper is now the tallest building to dominate the Manhattan skyline.

Maryanne Casey, a Condé Nast employee, who once worked at the World Trade Center, said: "It's a great tribute to America to see this. I'm very proud to work here."

Despite the overall optimism, there have been concerns too. Telegraph reported that prior to moving into the new building, which is being dubbed as "the most secure office building in America", Conde Nast addressed any issues employees might have had about moving into the tower.

The concerns seems to have triggered architectural firm such as, T.J. Gottesdiener of the Skidmore, Owings & Merrill, to take "extra measures to strengthen the steel-and-concrete structure," which is now much stronger than the twin towers.

However, the whole moving in has been a quite affair. According to Wall Street Journal, the Port Authority of New York and New Jersey, which is jointly developing the tower, may have an official opening ceremony later in the month.

Reports claim that the new WTC building is 60% leased, with another 80,000 square feet office to be taken by Servcorp, a provider of executive offices, advertising firm Kids Creative, the BMB Group investment adviser and the stadium operator Legends Hospitality. 

Watch One World Trade Center Construction Video