In preparation for the opening of Berlin-Brandenburg Airport in Schönefeld in the south of Berlin, the S-Bahn line will be extended from the current terminus at Berlin-Schoenefeld Airport in a long curve to the new terminal. Directly below the not yet opened terminal, Berlin Brandenburg, a station has been built with six platform tracks. Four through platform tracks are provided for long-distance services. Two tracks are being built for the S-Bahn on the approach from the west. In early July 2008, the first 185-metre-long section of the station was completed so that the terminal could be built. On 24 July 2009, the airport company transferred the completed shell of the airport railway station and the first part of the tunnel to DB. The new line includes the stations of "Waßmannsdorf" and "Berlin Brandenburg Airport" and has a length of approximately 7.8 kilometres. The construction cost was specified as €636 million. This amount also included the cost of construction of long-distance tracks.