Media agency Carat calculates that with about 11 venues scattered across the capital to be used for Olympic events, buying poster sites will cost in the region of £2m for the weeks leading up to the Games and for the duration of the Olympics, according to research conducted exclusively for Marketing. Proposed sites include the All-England Club at Wimbledon and a purpose-built stadium at Stratford.
The acquisition of media space is a precondition for host cities to prevent rival brands ambushing official partners such as Visa, Coca-Cola and McDonald's.
Buying outdoor sites would be the responsibility of a London 2012 Organising Committee.