The IOC has agreed to scrap plans for a new temporary venue near the London Olympic Park and will house badminton and rhythmic gymnastics in an existing venue because of the "exceptional circumstances" of the recession.
London 2012 organizers proposed switching venues to keep costs down and have both events at Wembley Arena during the longest and deepest downturn in decades, despite initial protest from the sports' bodies.
The decision follows months of uncertainty, but the IOC denied the deal would set a precedent for future bid cities to change their plans.
"We just hope we won't have a world financial crisis every four years," Denis Oswald, head of the IOC's co-ordination commission, said at the end of a two-day visit yesterday.