[4] The Finnish Heritage Agency has proclaimed the Mikkeli station a nationally significant built cultural environment.

In the next decade, the plans for the Savo railway started to take form, in which Mikkeli would have housed a junction station for a south-north line through eastern Finland.

In the end, the Savo line toward Kuopio was built starting from Kouvola with Mikkeli becoming just an intermediate station, as the Jyväskylä branch was set to begin from Pieksämäki instead.

This made it possible to connect the railway to the Mikkeli harbour on lake Saimaa, as well as to allow the city center to expand more naturally in the future.

Its appearance has changed significantly over the years; for example, the open porch facing the railway was closed up, and the ornamental details on the roof were removed.