A new plan to protect London's Westminster area was unveiled on Tuesday by English Heritage, the government's adviser on the historic environment. The new management plan has been created by a steering group chaired by English Heritage and made up of stakeholders including the Government Office for London, the Greater London Authority and Westminster Council. The plan aims to assess the impact of development proposals upon the Westminster area, 'including those for tall buildings'. Under the plan, the introduction of a new buffer zone aimed at protecting the Palace of Westminster and the Abbey from the impact of tall structures will also be considered.