The cost was initially slated to be $81.61 million (8.9 billion yen), as stated in the candidature file presented to the International Olympic Committee (IOC) in 2013.
The organisers cited reasons such as increase in construction prices and bolstering the earthquake-resistance system for the cost hike. The building will be used, after the Games, as an exhibition hall until 2030.
They added the initial price reflected only the construction cost, while Shimzu's bid included design cost as well.
The Tokyo Olympic and Paralympic organising committee and the Tokyo metropolitan government will soon meet to talk about ratio of sharing expense.
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IOC President Thomas Bach met Tokyo Governor Yuriko Koike in October and had proposed a committee to look into ways to cut cost after the overall estimates were found to be "very large".
Venues for rowing/canoe sprint, swimming and volleyball have come under the scanner as part of cost-cutting measures.
($1 = 109.0500 yen)
(Reporting by Debanjan Bose in Bengaluru; editing by Amlan Chakraborty)
