History
Hamadayama Station sits on the Keio Inokashira Line in Suginami ward, Tokyo, 7.5 km from the Shibuya terminus and numbered IN11. It opened on 1 August 1933 as a Teito Electric Railway stop, was folded into Odakyū in May 1940, joined the wartime Tōkyū combine in 1942, then passed to the newly separated Keio Teito Electric Railway on 1 June 1948. Only all-stations local services stop here. The station was rebuilt in 1995–96, moving the station building underground and lengthening the platform to accept the new 20-metre, five-car Keio 1000 series trains, and eliminating an in-station road crossing in the process. Station number IN11 was introduced on 22 February 2013 and platform doors entered service on 6 December 2025.
History summarized from Japanese & English Wikipedia · last reviewed 2026-05-18.
Notes
The station has only a north-side exit; reaching the platform from the south requires crossing what locals call the "unopenable" Kichijōji-end pedestrian crossing, and Suginami's planned south-side concourse project was suspended in January 2023 after lease talks with the landowner stalled.