[4] The station has an entrance hall, an extension formerly used as a Fürstenbahnhof ("Princes' station", that it was built to be used by royalty) and a train shed built by MAN in 1910;[5] which is the smallest train shed in the DB network.

It was built because of the great importance of Bad Ems as a spa before the First World War.

A pedestrian subway, which was built later, connects the entrance building with the island platform and Braubacher Straße (L 327) on the other side of the station.

This contains stairs and a lift connecting with the subway to the platform and to Braubacher Straße.

[6] Station points were installed and the signals were renewed in August 2015 to allow more trains to pass over the Lahntal railway during the busiest periods.