Hongo-sanchome

Weekday departures: 1,019/day · Sat & holiday departures: 780/day

First / last train (weekday): 0:18 / 24:20

Busiest hour: 8:00–9:00 (81)

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0:00 ─ 23:00

Counts are departures in the timetable data shown on our live map.

• Marunouchi Line: Korakuen ⇄ Ochanomizu
• Oedo Line: Kasuga (Tokyo) ⇄ Ueno-okachimachi

Hongō-sanchōme Station opened on 20 January 1954 as a Teito Rapid Transit Authority Marunouchi Line stop. The original side platforms were 80 m long, sized for four-car trains, with 40 m of tunnel reserved at the Ikebukuro end for future expansion; that extension was carried out in 1960 to allow six-car operation. The April 1965 residential-address reform shifted the surrounding district from Hongō 3-chōme to Hongō 2-chōme without moving the station. Toei opened a separate Ōedo Line platform here on 12 December 2000; the two stations are not connected underground because building a through-passage would have required acquiring private land. A two-year rebuild of the Marunouchi entrance finished on 22 November 2002, and platform doors entered service in 2006.

Because Tokyo Metro and Toei chose not to fund a connecting under-street passage to keep land-acquisition costs down, transferring between the Marunouchi and Ōedo lines at Hongō-sanchōme requires leaving the paid area and crossing two streets; Tokyo Metro reconsidered the linkage in 2011 but no through-passage has been built.