London 2012 Olympic main venue design blueprint, this plan which is considered as one of the largest projects in Europe was planned by London Olympic Delivery Authority, started construction in April 2008 and will be commissioned in 2012. According to relevant person in charge of London Olympics said, this project will be built in London's East End, which is also one of the poverty-stricken areas in London. The area of this main venue will reach 600 acres (about 250 hectares), with a total of 80,000 seats.