A new entrance building was built for the Königlichen Eisenbahn-Direktion (railway division of) Berlin to a design by the architects Charles Cornelius and Waldemar Suadicani.

The station has since possessed an island platform of typical Berlin design, a three-track reversing facility for suburban trains located to the east and a freight loading point on the long-distance tracks.

The electrification involved extensive work, including the adaptation of the signalling and the raising of the heights of platforms from 760 to 960 millimetres.

The Germania plan of the Nazis envisaged the upgrading of the line to Köpenick to six tracks, as a long-distance S-Bahn service (similar to the modern Regional-Express trains) would run between Köpenick and Ostkreuz and cover the nearly ten kilometre-long route without stopping.

Three years later, however, a single S-Bahn track was restored for electrical operations to Köpenick in January 1948 and as far as Erkner in November 1948.

Following financial difficulties and the resulting delay to the building of the Köpenick Regionalbahn station,[5] the plans were resumed in 2011 after the Berlin Secretary of State, Maria Krautzberger had asked for a parliamentary inquiry into the prospects for the assumption of the costs by the state of Berlin.

After funding was secured under the infrastructure project i2030 of the states Berlin and Brandenburg and planning was finished in 2022, construction at Berlin-Köpenick Station started in March 2023 and is set to continue until 2027.

Tram lines 62, 63 and 68 and several bus routes operated by Berliner Verkehrsbetriebe stop at the station.