Tokyo - The new olympic stadium for Tokyo-2020 will cost some two billion dollars, 54 percent more than the fixed budget, announced the Japanese Sports Council.

Despite reducing the original volumen last May to one billion 372 million dollars, the present design will be still more expensive than planned.

This plan reduced the size of the olympic stadium to 220 thousand square meters, 70 thousand meters less than originally intended.

Besides, the minister of Sports, Hakubun Shimomura, proposed that if the new olympic stadium were built without the retractile roof and the number of seats were reduced, the cost and time of construction would be diminished.

Despite those modifications, the final price of the project could go up by 700 million dollars due to the increase in prices of materials, said sources of the Government to the state network NHK.

New modifications will be introduced to try reduce the cost even more of the stadium and added that until then no contract will be signed with the companies in charge of the stadium to start construction.

It is expected that authorities take a definitive decision on the project next week.

According to Shimomura, organizers can look for alternative options to the original plan, designed by architect Zaha Hadid, and even offered a positive evaluation of the proposal presented at the beginning of the month by architect Fumi hiko Maki.

The design by Hadid has received many criticisms due to the great magnitude and high price of the project, besides generating a confrontation between the central Executive and the Tokyo Metropolitan Area on the distrtibution of the cost of the stadium.

The old Olympic stadium of the Japanese capital, scenario of the 1964 Olympic Games and a capacity for 48 thousand spectators, was already demolished and the construction of the new one will begin in September with the ambition of ending it before 2019, when it will serve as venue for the World Rugby event.