The Town and Country Planning (General Permitted Development) Order 1995

Development not permittedE+W

A.1  Development is not permitted by Class A if—

(a)it would consist of or include the provision or alteration of a dwelling;

(b)the height of any building or works within 3 kilometres of the perimeter of an aerodrome would exceed 3 metres in height; or

(c)any part of the development would be within 25 metres of the metalled portion of a trunk road or classified road.