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      Highly sophisticated facilities and services are in place to ensure business continuity for all Marunouchi tenants.

      Urban planning for peace of mind

      Marunouchi boasts one of Tokyo’s lowest rates of building damage and fires following earthquakes. Recognized as a Business Continuity District (BCD), highly resilient Marunouchi is designed to ensure prompt recovery from suspension of business operations in the event of a disaster. Urban planners do everything they can to keep the district safe and secure. Learn more about BCD at http://www.mec.co.jp/e/safety/


      Disaster preventation booklet

      Stable Energy Supply

      In the Otemachi-Marunouchi-Yurakucho district, the backbone of Japan’s economy, an underground Super Tube infrastructure provides a stable and secure power supply even during disasters.

      Electricity & Gas

      Marunouchi employs multiple measures to ensure a highly stable energy supply. Its midpressure gas pipelines withstand disasters better than standard city gas pipelines, as proven in the Great Hanshin-Awaji Earthquake and East Japan Great Earthquake.


      Marunouchi district’s heating and cooling system employs conduits from plants built deep in the earth to reduce seismic shock. The district heating and cooling system is monitored 24/7 by special staff to respond immediately in times of disaster.

      Advanced information systems and networks

      Extensive power facilities and emergency power feeds ensure up to 72 hours of self-generated power in the event of disasters in the Otemachi, Marunouchi and Yurakucho districts. All buildings in these districts are connected to our data center via fiber-optic cable network, and the number of free WiFi spots is increasing.

      For corporations

      Office buildings Otemachi, Marunouchi and Yurakucho districts Marunouchi data center Otemachi data center Optical fibers Telecommunications businesses /data centers

      Nearly 70% of the office buildings in Otemachi, Marunouchi and Yurakucho feature supremely reliable optical fiber networks (Marunouchi Broadband) that link directly with local data centers such as Marunouchi Data Center and Otemachi Data Center.

      For visitors


      JAPAN FREE WIFI is provided throughout Otemachi, Marunouchi and Yurakucho in public spaces, office building entrances, etc. This free service is available in 4 languages (English, Chinese, Korean and Japanese) for visitors to Japan.


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