Article 3 restrictions on permitted development rights
Article 3 of the Town and Country Planning (General Permitted Development) (England) Order 2015 grants planning permission for a series of classes of development described as permitted development in Schedule 2 of the Order. There are parts of Article 3 itself that restrict the general rights to permitted development that it grants.
Article 3 stipulates that there is no permitted development for anything which creates an obstruction to the view of persons using any highway used by vehicular traffic and which causes them danger.
The Article also stipulates that if a development requires the submission of an Environmental Impact Assessment under the relevant Regulations it cannot be permitted development.