The overground part consists mainly of two low-floor platforms on the Neumarkt square used by the East-western trains of lines 1, 7, and 9.

Currently the underground part of the station is also operating at maximum capacity with train headways being 2 minutes, but with the construction of the North-South Stadtbahn, line 16 will avoid the congested city center tunnel and instead follow the new tunnel to Dom/Hbf.

The HUGO-Passage is an underground concourse connecting both parts of the Station and the nearby Schildergasse.

Inside, there are shops as well as a service center of the Kölner Verkehrs-Betriebe (Cologne Transport Authority).

The name HUGO-Passage is usually shown by a green H in a yellow circle, the German sign for a tram stop (Haltestelle) representing the overground station, a white U in a blue box, the German sign for an underground (U-Bahn), and the word GO, depicting the possibilities for walkers to use the passage to avoid waiting at traffic lights.