Berlin Brandenburg Airport surrounding the three existing airports — Tegel, Schönefeld and Tempelhof. Therefore, it was mandatory for Tegel and Schönefeld to close (Tempelhof was already decommissioned in 2008) once Berlin's air traffic is concentrated at the new airport. By 2009 the construction cost was budgeted at €2.83 billion. FBB raised the financing for the project by a credit raising of €2.4 billion, a bank deposit of €430 million by the FBB partners and an additional €440 million of equity capital provided by FBB. During construction, it became clear that the airport would become significantly more expensive due to underestimating the actual costs,
Airport city other food services; specialty retail and factory outlet centres; cultural and entertainment attractions; hotels; banks and currency exchanges; business offices and complexes; convention and exhibition centres; leisure, recreation and fitness venues; logistics and distribution; perishables and cold storage; and free trade zones and customs-free zones. Airport cities may be found in varying stages of development surrounding major airports worldwide, particularly in Europe, where older airports are being redeveloped or expanded on large tracts of unused airport land. Many new airports in Asia are being planned as airport cities or aerotropolises. North America, South America, and Africa all boast airport city