The venue held canoe slalom events at the Games and will be converted under a £4.5m deign and build contract.
The original venue was built by Morrison.
A contractor will be appointed in December with work set to start next January and last until September 2013.
Work will involve the remodelling of hard and soft landscaping areas, building a training and administration facility for use by the British Canoe Union, the construction of a Park Pavilion containing café and toilet facilities for visitors to the site, alterations and improvements to the existing facilities building and provision of additional car parking spaces on the site.
Firms have until September 24 to register their interest by completing PQQ documents at www.leevalleypark.org.uk/go/current-tenders (MT Ref:91718).
For more information contact Lee Valley Regional Park Authority Myddelton House, Bulls Cross Parklands & Venues (Section Manager APMD) David Allen EN2 9HG Enfield +44 1992717711 dallen@leevalleypark.org.uk +44 1992719937