History
The Seibu station here opened on 15 October 1927 as Toshima Station on the Musashino Railway's Toshima Branch and was renamed Toshimaen on 1 March 1933. The branch terminated next to the Toshimaen amusement park, which had opened the previous year and remained the main draw for travellers until its closure in August 2020. A Toei Ōedo Line station opened on 10 December 1991, with the subway and Seibu facilities standing about 100 m apart. Seibu numbering in fiscal 2012 assigned this stop SI39. In April 2023 the Seibu building was reskinned to evoke "Hogsmeade Station" for the Warner Bros. Harry Potter studio tour next door.
History summarized from Japanese & English Wikipedia · last reviewed 2026-05-18.
Notes
The Seibu platform is unusually wide because a former centre track was paved over in the mid-1960s when the original three-track configuration was reduced to two; the rebuilt island uses the resulting space for advertising panels and a flower bed where the third platform used to face.