History
Ayase Station opened on 1 April 1943 as a Japanese Government Railways stop on the Joban Line in Adachi, Tokyo. The platforms moved roughly 250 m toward Kameari in February 1968. On 20 April 1971 the new Chiyoda Line subway absorbed the Joban Line's local service between Kita-Senju and Ayase, and the Teito Rapid Transit Authority took over day-to-day operation; the short Kita-Ayase branch line followed on 20 December 1979. The segment between Ayase and Kita-Senju is physically a Chiyoda Line tunnel, but JR East still uses it for Joban Line fare calculation. TRTA was privatised as Tokyo Metro on 1 April 2004, and platform-edge doors entered service across all four platforms by 2020.
History summarized from Japanese & English Wikipedia · last reviewed 2026-05-18.
Where the English and Japanese sources differ, this account follows the Japanese source.
Notes
Ayase is the only station on the Tokyo Metro network with a "Platform 0" — a stub bay reserved for three-car Kita-Ayase shuttle trains, cut into the side of the through platforms.