History
Tokorozawa Station opened on 21 March 1895 as a Kawagoe Railway station, predecessor of the Seibu Shinjuku Line, and gained a second route on 15 April 1915 with the opening of the Musashino Railway, today's Seibu Ikebukuro Line. The two routes meet at this junction, which doubles as Seibu's main hub in Saitama Prefecture. From 1958 onward both lines were progressively double-tracked through Tokorozawa, and in November 1963 the Ikebukuro Line ran the first 10-car train in Japanese private-railway service through here. A multi-phase rebuild of the station and concourse began in 2010 and the new elevated station building opened on 8 March 2012, with phase II completing on 2 September 2020.
History summarized from Japanese & English Wikipedia · last reviewed 2026-05-22.
Notes
Since 3 November 2020 the platforms have used melodies from "My Neighbor Totoro": the Tokorozawa area is the setting of the film, and bronze Totoro figures stand in the east-side bus rotary.