In 2011, Three Mills Green underwent widespread landscaping works designed by Churchman Landscape Architects and 5th Studio. In Autumn 2011 Lee Valley Regional Park Authority, Olympic Park Legacy Company and The Legacy List ran an international design competition – run by the Architecture Foundation – for new proposals to introduce play to the site.

The Wild Kingdom scheme, by We Made That with Free Play was selected as the winning entry of this competition in September 2011. Following a subsequent fund-raising auction in November 2011, construction completed in Summer 2012.

The Three Mills Green playspace project is funded and supported by The Legacy List, London Legacy Development Corporation and Lee Valley Regional Park Authority.