Contractor Balfour Beatty has won the £41M contract to transform the London 2012 Olympic Stadium roof.
The E20 Stadium Partnership between the London Legacy Development Corporation and London Newham Council awarded the contract late last month and work to dismantle the existing roof and floodlight towers will begin in the autumn.
Once the existing roof and floodlight towers are removed a new roof will be built and lifted into position. It will be twice the size of the original at around 45,000m2.
The announcement came ahead of the first anniversary of the 2012 Games opening ceremony and coincided with the beginning of the phased opening of the Queen Elizabeth Olympic Park, which will be fully reopened by next spring.