History
Ochiai-minami-nagasaki Station opened on 19 December 1997 as part of the Toei Line 12 extension from Nerima to Shinjuku, in Shinjuku Ward, Tokyo. Line 12 was rebranded as the Ōedo Line on 20 April 2000. The station sits on the Shinjuku-Toshima boundary — its provisional name was simply Minami-Nagasaki, but officials hyphenated the names of the two neighbourhoods to acknowledge the location — and remains the westernmost and northernmost stop in Shinjuku Ward. PASMO IC-card acceptance began on 18 March 2007, and a third street-level entrance (A3) integrated with the i Terrace Ochiai-Minami-Nagasaki retail building was added on 30 March 2012. The platform is laid out as a single underground island serving two tracks with a noticeable curve.
History summarized from Japanese & English Wikipedia · last reviewed 2026-05-18.
Notes
The arrival announcement names nearby Kato Precision (Kato/Kantō Kinzoku) and the Hobby Center Kato as landmarks — a tip of the hat to the model-railway manufacturer headquartered just steps from the station.