A terminal station with six tracks was built to serve this traffic next to the suburb platform, with a private pavilion for the Emperor.

The current station building and the bridge over the street now called Treskowallee was built with the raising of the tracks, which was completed in 1902.

The Soviet dictator, Stalin took part in the Potsdam Conference and insisted on a trip without changing trains.

At certain times, Karlshorst was also the terminus of some express trains, if the capacity of other Berlin railway stations was insufficient.

In 2007, the Deutsche Bahn replaced the viaduct for the long-distance tracks over the Treskowallee by a temporary bridge because of its state of disrepair.

After the completion of new abutment, the first new steel superstructure with a weight of 240 tons to accommodate the two mainline tracks was then installed in June 2013.

[9] The construction of the new pedestrian overpass was interrupted on October 12, 2013 when a seven-ton section of the bridge fell six metres to the surface of the concourse.

Upon completion of bridge works the district will, in coordination with the BVG and the Berlin water authority, reconstruct the street of Treskowallee and the new tram stops will be installed.

Regional trains RE7 and RB14 connecting to central Berlin and Berlin-Schönefeld Airport station stopped at Karlshorst until December 2017.