DHCLG stated in its response that the ‘Call for Evidence has highlighted a number of concerns about the impact of basement developments in certain areas. It has also provided examples of existing and emerging good practice by local authorities in using the existing tools available to them in the planning system to mitigate these local impacts, both before development has started and once it is underway. This includes the introduction of local plan policies and Article 4 directions to control basement development. Local planning authorities whose areas are affected by basement developments may wish to consider similar approaches’.