When Britain-based architect Rod Sheard was tasked with designing the Olympic Stadium he also designed the stadium for the Sydney Games he was told he needed to build the most sustainable stadium ever and one that can could be transferred.

London 2012 chairman Sebastian Coe told Sheard that unlike previous Olympic Stadiums that are changed to accommodate a different sport after the games, he wanted a stadium that could be changed into an entirely different venue.

The final product is a stadium that will be reformatted from 80,000 seats to 25,000 seats after the games. What it will be used for could change all the time.

"We simply don't know, because it's capable of being whatever we want it to be," said Sheard, who mentioned outdoor concerts, professional sporting events and university functions.

"Do we really need to build these big fixed edifices that then stand idly by? We see this building as a blank canvas ready for other people to write their masterpiece."

Jenna Fryer Twitter http://twitter.com/jennafryer