三菱地所設計

The roots of Mitsubishi Jisho Sekkei lie in the Marunouchi Architectural Office, the architectural design firm founded in 1890 which designed Japan’s first modern office building, the Mitsubishi Ichigokan (Building No.1). Over the subsequent decades, as the country modernized, the firm went on to design a series of iconic brick buildings in the central Marunouchi district of Tokyo, the national capital. In the 1960s, responding to rapid economic growth and the burgeoning demand for office space,