The Shinjuku Sumitomo Building—a pioneering skyscraper in the Shinjuku Subcenter—has been reborn while retaining its iconic nickname “Sankaku Biru” (the Triangular Building), and now features a large glass-roofed event space at its base: Sankaku Hiroba (Triangular Plaza). Directly connected to Tochomae Station, the venue accommodates up to 2,000 people and stands out in Shinjuku, home to Shinjuku Station, Japan’s busiest terminal station. From popular food festivals and trade fairs to sports activities, press conferences, and exhibitions, it can host a wide range of events.

Sankaku Hiroba website (JP)

We operate Tokyo Garden Theater, a theater-style event hall with a maximum capacity of approximately 8,000 people, located within Ariake Garden, a large-scale mixed-use complex. Equipped with advanced stage systems, premium acoustics, and one of the largest event spaces in Tokyo, it can accommodate a wide variety of events, including concerts, international conferences, seminars, and award ceremonies.

TOKYO GARDEN THEATER (EN /JP)

We operate event halls/conference centers in central Tokyo. Customers can select from a wide variety of venues and packages according to their purpose and preferences. With a comprehensive range of facilities, we have a proven track record of supporting various occasions, from entertainment events to academic conferences and shareholder meetings.

Sumitomo Fudosan Bellesalle Co., Ltd. (JP)