History
Takanawadai Station opened on 15 November 1968 as a subway station on Toei Line 1, which was renamed the Toei Asakusa Line on 1 July 1978. The single island platform sits between two single-bore shield tunnels, with the tunnel wall running down the middle of the platform; short cross passages at either end of the platform link the two sides, an arrangement similar to Kokkai-gijidō-mae on the Tokyo Metro Chiyoda Line. Until the Mita Line's extension between Hibiya and Mita opened on 27 November 1973, it was the deepest station on Toei subways at 18.2 m, and was the network's first to receive escalators between concourse and platform.
History summarized from Japanese & English Wikipedia · last reviewed 2026-05-18.
Notes
Takanawadai's island platform actually sits inside two separate single-bore tunnels, with the tunnel wall running down its middle and short cross passages at either end linking the two sides.