The O₂ arena is a multi-purpose indoor arena located at the centre of the O2, a large entertainment complex on the Greenwich peninsula in South East London. With a capacity of up to 23,000 depending on the event, it is one of the largest indoor arenas in Europe alongside the MEN Arena in Manchester. In 2008, shortly after its construction by Sir Robert McAlpine, the O2 arena took the crown of the World's Busiest Arena from the MEN Arena, a title which it had held since 2001.

Priority1 was used to issue snags and outstanding tasks to subcontractors.