As a component part of the future Lea River Park, Three Mills Green aimed to provide a high quality open space as a resource for the local community but also that will act as a catalyst for future development and a link to the wider Lea Valley Regional Park and the Olympic Park. The specific objectives of the project were to enhance a flexible open space with capacity to host events, strengthen the convergence of key routes along the Lea Valley, introduce play and sport opportunities, and protect and enhance ecological values whilst minimising future maintenance costs and ensuring flexibility for future changes due to future development.