Can my neighbour erect a wall or fence on the boundary without planning permission?
Unless their property is a Listed Building, your neighbour can erect a ‘means of enclosure’ (gate, wall, fence, etc) up to one metre in height where it is adjacent to a highway, or up to two metres in height on any other boundary. If an existing means of enclosure is altered or repaired, it can extend to its former height. For more detailed or specific advice, visit the Planning Portal website or contact the Town Planning Advice Centre. You should be aware that the ownership of land and boundaries is a civil matter and cannot be dealt with by the planning department.