The facility will be a gathering place for athletes and their teams, as well as the site of welcome ceremonies and press briefings during the Games.

The unusual structure is made mostly from wood, with the floors, walls and parts of the roof using timber including larch, Japanese cedar and Japanese cypress.

The vast complex nods to both modern and traditional elements.

“It’s based on Japanese traditional wood buildings, but not on any specific building in particular,” said Nariki Makihara, Tokyo 2020 senior manager for venues sustainability.