The Green Enterprise District is a regeneration project of the Mayor of London in east London, England, with a stated aim to create a low-carbon economy region in Greater London. It coincides with the Lower Lea Valley and London Riverside sections of the Thames Gateway, which corresponds to parts of the boroughs of Barking and Dagenham, Havering, Newham and Tower Hamlets. The flagship project is The Crystal (in planning known as the Siemens Pavilion) at Royal Victoria Dock, which is built on land owned by the London Development Agency and Newham London Borough Council and opened in 2012.