The station consists of two
side platforms serving two tracks on the second basement ("B2F") level.
Platforms {{jpf|pfn=1|first=2|name=Mita Line|symbol=|dir={{plainlist| • for and • for and •
Sotetsu Main Line for via the Tokyu/Sotetsu Shin-Yokohama Line •
Sotetsu Izumino Line for via the Tokyu/Sotetsu Shin-Yokohama Line File:Shibakoen-Sta-Gate-For-Shibakoen.JPG|The ticket barriers at the northern end of the station in May 2011 File:Toei-subway-I05-Shibakoen-station-platform-20230916-123539.jpg|The platforms in September 2023 ==History==