The Tokyo Metropolitan Government is considering building a complex including a convention center on the site of the closed Tsukiji fish market, a source close to the matter said Wednesday.

On Jan. 25 the Tokyo authorities will outline a draft redevelopment plan for the 23-hectare site of the former fish market, which closed last October after 83 years of operation, the source said. The draft plan is expected to be finalized by the end of March.

Tokyo has already decided to use the location temporarily as parking lots for athletes and staff during the 2020 Tokyo Olympic and Paralympic Games.