History
Sangen-Jaya Station first opened on 6 March 1907 as a stop on the surface Tamagawa Electric Railway tramway in what is now Setagaya, Tokyo. The current Setagaya Line tram service over the connecting alignment began on 18 January 1925, the original Tamagawa Line was withdrawn on 10 May 1969, and an underground Shin-Tamagawa Line opened beneath the Route 246 corridor on 7 April 1977. Tram platforms were shifted to a temporary site on 11 November 1992 to allow redevelopment and moved into the new Carrot Tower terminus on 15 November 1996. The Shin-Tamagawa Line was absorbed into the Den-en-toshi Line on 6 August 2000, and platform-edge doors entered service on the subway level on 24 December 2017.
History summarized from Japanese & English Wikipedia · last reviewed 2026-05-18.
Notes
The Setagaya Line tracks here start at the 0.2-kilometre marker rather than zero, because the original terminus was demolished during redevelopment and the new platform inside Carrot Tower sits about 170 metres west of its predecessor.