Development and Preparation

The London Organising Committee of the Olympic Games (LOCOG) was created to oversee the staging of the Games after the success of the bid, and held its first board meeting on 3 October 2005. The committee, chaired by Lord Coe, was in charge of implementing and staging the Games, while the Olympic Delivery Authority (ODA) was in charge of the construction of the venues and infrastructure. The latter was established in April 2006.

The Government Olympic Executive (GOE), a unit within the Department for Culture, Media and Sport (DCMS), was the lead government body for coordinating the London 2012 Olympics. It focused on oversight of the Games, cross-programme programme management and the London 2012 Olympic Legacy before and after the Games that would benefit London and the United Kingdom. The organisation was also responsible for the supervision of the £9.3 billion of public sector funding.

In August 2011, security concerns arose surrounding the hosting of the Olympic Games in London due to the 2011 England riots, with a few countries expressing fear over the safety of the Games, in spite of the International Olympic Committee's assurance that the riots would not affect the Games.

The IOC's Coordination Commission for the 2012 Games completed its tenth and final visit to London in March 2012. Its members concluded that "London is ready to host the world this summer".