"Our advice was, well, if there's that opposition, look for another site." Coates said. "And they have identified another site on the same island quite proximate and the stage we're at now is we've recommended that there'll be discussions with the International Federation."
Tokyo, which hosted the 1964 Olympics, won the right to host the 2020 Games last September with a plan emphasizing the city's safety and advanced infrastructure. Of the 33 competition venues, 28 will be within 5 miles (8 kilometers) of the Olympic Village, which will be built on reclaimed land in Tokyo Bay.
Coates added that any venue changes cannot be made unilaterally by games organizers but must also be approved by the bodies which run the individual sports.
"There will be no changes unless there is full sign-off from the international federations," Coates said.