The original building is one of the oldest big city railway stations in Germany. It is a three-storey ashlar building bounded by tower-like corner projections. The main entrance in the middle of the building is a four-columned portico, with emphasised Corinthian capitals and has strong antique ornamentation. The ground floor originally had arched openings and it has six rectangular windows on each level and on each side of the portico. It was necessary in 1900 to build a ground-floor entrance porch to cater for the growing need for space for counters and waiting rooms.