http://en.wikipedia.org/wiki/One_World_Trade_Center#Owners_and_tenantsThe building is owned principally by the Port Authority of New York and New Jersey. Around 5% equity of the building was sold to the Durst Organization in exchange for an investment of at least US$100 million. Durst Organization assists in supervising the building construction, manages the building for the Port Authority and is responsible for leasing, property management and tenant installations.<45><46>
The State of New York has agreed to a 15-year lease of 415,000 square feet (38,600 m2) of space inside 1 WTC, with an option to extend the term of the lease and occupy up to 1,000,000 square feet (90,000 m2).<47> The General Services Administration (GSA) has agreed to lease approximately 645,000 square feet (59,900 m2) of space,<33><47> New York State's Office of General Services (OGS) plans to lease approximately 412,000 square feet (38,300 m2) of space. In April 2008, the Port Authority announced that it was seeking a bidder to operate an 18,000 square feet (1,700 m2) observation deck on the tower's 102nd floor.<48>
The building's first lease was announced on March 28, 2009, as a joint project between the Port Authority of New York and New Jersey and Vantone Industrial Co. based in Beijing, that will create a 190,810 sq ft (17,727 m2) "China Center", a business and cultural facility located between floors 64 and 69, that is said will represent business and cultural communities in China and serve as a hub for Chinese firms developing United States operations, as well as for US companies that wish to conduct business in China. The lease is for 20 years and 9 months.<49>
On August 3, 2010, Condé Nast signed a tentative agreement to move the headquarters and offices of its 18 magazines into up to 1,000,000 square feet (90,000 m2) of the building.<50> Nine months later, on May 17, 2011, Condé Nast reached a final agreement with the Port Authority to lease the space, a deal estimated to be valued at $2 billion over 25 years.<51>
On May 25, 2011, Conde Nast finalized its lease agreement with the Port Authority. The lease is for 1,008,012 square feet (93,647.4 m2) of office space, occupying floors 20–41. The lease also covers an additional 30,000 square feet (2,800 m2) of usable space in the podium and below grade floors for mail, messenger services, and storage use.