Environmental impact assessment for Marunouchi 2-2-1 and other blocks (Marunouchi Building / Mitsubishi Shoji Building)

Applicable laws and regulations: Tokyo Metropolitan Environmental Impact Assessment Ordinance
Eligible projects: Construction of high-rise buildings (height over 100m and total floor area over 100,000㎡)
Completed: 2003

Since Mitsubishi Estate announced the "Marunouchi Redevelopment Plan" in 1988, a redevelopment council was organized by related landowners and the government, and discussions were held on how to develop the area, building momentum for redevelopment in the Marunouchi area. In this context, the decision was made to rebuild the Maru Building and Shoji Building, marking the first application of assessment in the area.
The Marunouchi Redevelopment Plan was groundbreaking in that it incorporated environmental impact considerations into its concept and presented and questioned the public, making it a pioneering attempt in strategic assessment. The Maru Building and Shoji Building as individual projects were also groundbreaking in that they were planned using a method of increasing the volume of land within a block of buildings through the city planning of specific blocks.
This assessment was the first of its kind in the Marunouchi area, which is undergoing renewal as a city that can be proud of around the world as the heart of Japan, and is significant as a pioneer in the numerous assessment projects in the area that followed, for example, it utilized the spirit at the time the "Marunouchi Redevelopment Plan" was announced and promoted interaction with society based on information disclosure while moving forward with the project, and it was planned with cutting-edge environmental considerations at Marunouchi Building.