Paragraph G.2 Conditions
Development is permitted by Class G subject to the following conditions—
in the case of any Class G(d) development, on the completion of that development, or at the end of a period of six months from the beginning of that development (whichever is the sooner) any such plant or machinery shall be removed and the land shall be restored as soon as reasonably practicable to its condition before the development took place,
in the case of any Class G(f) development, approval of details of the design and external appearance of the buildings shall be obtained, before development is begun, from—
in Greater London or a metropolitan county, the local planning authority,
in a National Park, outside a metropolitan county, the county planning authority,
in any other case, the district planning authority.