London Olympics bill set to rise from £ 9.3 billion to around £ 11 billion according to new estimates . UK Parliament 's public accounts committee says security costs have doubled in recent years . They also warn of Olympic Stadium becoming a ` ` white elephant '' after the Games . A deal which would have seen West Ham Football Club move into the stadium after the Games collapsed in October 2011 . London Olympics start on July 27 ; Paralympics start on August 29 .
London Olympics bill set to rise from £ 9.3 billion to around £ 11 billion according to new estimates . UK Parliament 's public accounts committee says security costs have doubled in recent years . They also warn of Olympic Stadium becoming a ` ` white elephant '' after the Games . London Olympics start on July 27 ; Paralympics start on August 29 .