West Ham United has said it would cost £180m converting the Olympic Stadium in east London for use as a football venue after the 2012 Games.
Vice chairman Karren Brady told BBC London the club would be the "best anchor tenant" for the stadium, which would also incorporate athletics, rugby and cricket.
In March, West Ham officially launched its bid to take over the venue after the Olympics, supported by the local Newham Council, with plans to reduce the stadium's capacity to 60,000 after the Games.
Brady said it would cost between £150m and £180m to convert the venue by extending the roof, creating a pitch, turnstiles, toilets and space for corporate hospitality.
She said the club would raise the money by making use of the extra space and offering the stadium for other events when it is not in use for football.
Currently, plans are for the stadium to be downgraded from its 80,000 capacity during the Olympics to a 25,000-seat arena after the Games, for use as an athletics venue for the capital. However, there are fears that this could lead it to become a 'white elephant'.
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