West Ham United have six weeks in which to finalise their plans for moving into the Olympic Stadium following Wednesday's launch of the formal bidding process.

The Barclays Premier League club are among a group of interested parties hoping to win a long-term lease of the venue after the 2012 London Olympic Games.

The Olympic Park Legacy Company are open to ideas for the stadium to be reduced from its Games-time capacity of 80,000 to anywhere between 25,000 and 60,000.

The initial market testing phase of the process attracted over 100 participants and they all backed plans for a multi-use stadium, including a running track.

London's bid to host the 2012 Olympics included the guarantee that the iconic centre-piece of the Games would retain an athletics legacy.

Those organisations now wishing to formalise their interest have until noon on September 30 to make a formal bid by completing a questionnaire.