History
Kita-Ayase Station opened on 20 December 1979 as a Teito Rapid Transit Authority (TRTA) station built on the lead-in track to Ayase Depot. Originally only a three-car shuttle to Ayase ran from its single elevated side platform, reflecting modest demand when the surrounding district was sparsely settled. Operation transferred to Tokyo Metro on 1 April 2004 when TRTA was privatised. After a major rebuild that lengthened the platform by roughly 135 metres, ten-car through services to Yoyogi-Uehara began on 16 March 2019, transforming the station from terminus shuttle stop into a full Chiyoda Line terminus.
History summarized from Japanese & English Wikipedia · last reviewed 2026-05-18.
Notes
Kita-Ayase began life in 1969 as a depot-access signal post and only became a passenger station a decade later in response to local petitions, a path it shares with JR West's Hakata-Minami Station.