History
Tanashi Station opened on 16 April 1927 on what is now the Seibu Shinjuku Line, in present-day Nishitōkyō, Tokyo. The station sustained heavy damage during a US Army B-29 raid on 12 April 1945. A 1961 reconstruction expanded its layout from a single island platform to two islands serving three tracks, with a bridge-style building completed on 12 October 1962. After the previous depot was demolished as part of a north-exit redevelopment in 1996, a new station hall fitted with elevators and escalators opened in March 1999, becoming the line's last station to receive automatic ticket gates. Station numbering assigned SS17 in fiscal 2012.
History summarized from Japanese & English Wikipedia · last reviewed 2026-05-18.
Notes
Citizen Watch is headquartered close to the station, and a Citizen clock built into the concourse ceiling chimes hourly inside the building.