History
Shin-Koshigaya Station opened on 23 July 1974 to give Tobu's Skytree Line an interchange with Minami-Koshigaya on the year-old Musashino Line; transfer passengers had previously walked roughly one kilometre from Gamō. Land negotiations delayed the opening by about fifteen months. Elevation work began in 1989; down platforms were raised on 8 October 1993 and up platforms on 2 November 1994. Quadruple-tracking south to Sōka was completed in March 1997 and the station became a rapid stop at the same revision. A five-storey building housing the Variē shopping complex opened on 26 March 1998. Station number TS-20 was assigned on 17 March 2012 and platform edge doors entered service in March 2021.
History summarized from Japanese & English Wikipedia · last reviewed 2026-05-18.
Notes
Because the Musashino Line had been built elevated first, the later raising of the Tobu line required Shin-Koshigaya's platforms to span across the JR viaduct at roughly the height of a five-storey building.