History
The station opened on 25 April 1985 as Yūenchi-nishi Station with the conversion of the Seibu Yamaguchi Line to a new-transit automated guideway system. It replaced the earlier light-rail Yūenchi-mae Station that had stood further west on the line's original alignment. Although it shares its opening day with the rebuilt Yamaguchi Line, the station's own records do not inherit any earlier history. On 13 March 2021 it was renamed Seibuen-yūenchi to reflect the renovation of the Seibuen amusement park, whose former central gate was closed and whose former western entrance was redeveloped as the new main gate alongside the station.
History summarized from Japanese & English Wikipedia · last reviewed 2026-05-18.
Notes
The station sits in Saitama Prefecture but only just — its location in southernmost Tokorozawa makes it the southernmost railway station of the prefecture, with the Tokyo border passing just beyond the Seibu Dome a short walk away.