This study addresses the governance of the London 2012 Olympics legacy. It presents legacy not as a retrospective but a prospective concept concerned with shaping the future through interactions between the state, market and society. This entails designing systems of governance to guide and steer collective actions towards a consensus amongst various parties concerned. Four modes of governance and a range of policy instruments were examined in the delivery of sustainable London Olympics sport legacy including coercive, voluntarism, targeting and framework regulation. The British government actively created a new policy space and promoted institutional conduct consistent with its legacy visions. The current global legacy framework is lacking the governance dimension and its logic needs to be reconsidered. A meaningful sport legacy requires not top-down approaches but locally informed strategies supported by a developmental design of the Olympic Games informed by sustainable principles.