Sumiyoshi Station (Tokyo)

Sumiyoshi Station (住吉駅) is a subway station in Kōtō, Tokyo, Japan, jointly operated by Tokyo Metropolitan Bureau of Transportation (Toei) and Tokyo Metro. The station numbers are Z-12 for the Tokyo Metro Hanzomon Line and S-13 for the Toei Shinjuku Line.

Lines
Sumiyoshi Station is served by the following two lines.
 * Toei Shinjuku Line (S-13)
 * Tokyo Metro Hanzomon Line (Z-12)

Station layout

 * B1 level: Concourses
 * B2 level: Ticket halls/gates; Toei Shinjuku Line platforms
 * B3 level: Tokyo Metro Hanzomon Line platform 1 (for Shibuya)
 * B4 level: Tokyo Metro Hanzomon Line platform 2 (for Oshiage)

Toei platforms
Two side platforms serving two tracks. Here, passengers must choose their direction before passing through the ticket gates.

Tokyo Metro platforms
Originally built as two island platforms, one above the other, but only one side is used, and the other side, originally reserved for future extension plan to Toyosu, are used as stabling tracks.

History
The station opened on 21 December 1978, initially served by the Toei Shinjuku Line only. The Tokyo Metro platforms opened on 19 March 2003.

The station facilities of the Hanzōmon Line were inherited by Tokyo Metro after the privatization of the Teito Rapid Transit Authority (TRTA) in 2004.

Surrounding area
Sumiyoshi Station is located about 15 minutes' walk away from Kinshichō Station, one of Kōtō, Tokyo's largest shopping areas and also lies in close proximity to Sarueonshi Park.

Future developments
In 2021, plans were announced to branch the Yurakucho line at Toyosu Station, traveling north for 4.8 km connecting up to Sumiyoshi Station. This branch line, expected to be in service in the mid-2030s, will connect Sumiyoshi Station with the region south of it.

A branch line from Toyosu Station has been planned since the early 1980s, heading north via Kameari Station (on the Jōban Line) to Noda in northwest Chiba Prefecture.