London has raised the bar: Rogge

London 2012 will be a blueprint for future Olympic Games, IOC president Jacques Rogge said on Wednesday ahead of a three-day inspection of the venues.

"London has raised the bar on how to deliver a lasting legacy," Rogge told a news conference alongside British Prime Minister David Cameron. "We can already see tangible results in the remarkable regeneration of East London. This great historical city has created a legacy blueprint for future Games hosts,’’ he added.

Rogge met Cameron at Downing Street to discuss preparations for the Games which start on July 27 and met several London 2012 ambassadors including former heptathlete Denise Lewis.

The inspection visit by the IOC, the last one scheduled before the start of the Games, coincides with the publication of the Government's new legacy blueprint. "Legacy has been built into the DNA of London 2012," Cameron said. "But by definition, of course, the true legacy of London 2012 lies in the future,’’ he added.

"Though much has been done, I am acutely aware that the drive to embed and secure the benefits of London 2012 is still to come. That is our biggest challenge. It's also our greatest opportunity,’’ Cameron said.

London organising committee (LOCOG) chairman Sebastian Coe, writing in the legacy document "Beyond 2012", said Britain was delivering on its pledge to regenerate a run-down part of the capital.

"I am immensely proud that sport has also been a catalyst for the jaw-dropping transformation in East London," Coe said.