In just under a decade, a vast area of idle land outside Tokyo where trucks loaded with building materials rush to and fro will become the site of Japan's biggest data-center campus, covering an area seven times as large as the Tokyo Dome baseball stadium.

Construction was launched in October by Daiwa House Industry Co., Japan's largest homebuilder. It is the first time for the company to build such a facility, eyeing a market that is set to boom in line with the sharp increase in data traffic due to the rapid digitalization of society.

According to Tokyo-based research company IDC Japan, the total floor area of data centers of 5,000 square meters or more is estimated to reach 1,412,000 square meters in 2024, an increase of 80% compared with 2018.