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,
Mannheim City Airport Mannheim City Airport Mannheim City Airport ("City-Airport Mannheim" in German, formerly Mannheim-Neuostheim/Neuhermsheim) is a minor regional airport serving the German city of Mannheim. It is mainly used for general aviation. The airport is located 3.5 km (2.2 mi) east of the city center in the district of Neuostheim. It is surrounded by highways to the east (B38a) and the south (B37/A656), there is a power transmission line to the east and several high rise buildings to the west making Mannheim City a challenging airport. Because of its proximity to the city center and the lack of space for an expansion,