London Olympics bill set to rise from £9.3 billion to around £9.3 billion according to new report . Committee public accounts committee says security costs have doubled in recent months . The bill for staging the 2012 London Olympics and Paralympics is set to rise by nearly 20 % to £11 billion ( $ 17.2 billion ) a UK government committee has warned . Committee also warn of Olympic Stadium becoming a ` a white elephant after the Games . the Olympic Games begin on July 27 ; Paralympics start on August 29 .
London Olympics bill set to rise from £9.3 billion to around £9.3 billion according to new report . Committee public accounts committee says security costs have doubled in recent months . Committee also warn of Olympic Stadium becoming a ` a white elephant after the Games . the Olympic Games begin on July 27 ; Paralympics start on August 29 .