Converting the former Olympic Stadium to the London Stadium when it became home to the West Ham football club was a significant civil engineering feat. The landmark structure on the capital’s skyline initially cost £486 million when built to house the 2012 London Olympics.
A redevelopment between 2013 and 2016 to transform the Olympic monument into a football stadium for the Premier League club cost a further £323 million. The groundbreaking design included adding the most extensive cantilevered roof globally, powered by state-of-the-art technology typically used on North Sea oil rigs.
Additionally, the group installed 21,000 new retractable seats to bring fans in the lower tiers closer to the action, while they also added new catering facilities, toilets and executive facilities. The former Olympic stadium was almost totally rebuilt to create a 54,000-seat dual-use arena that would still be suitable for athletics.