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

E.1    Development not permitted

Development is not permitted by Class E if—

(a) it relates to a dwelling or a satellite antenna;

(b) any part of the building or enclosure to be constructed or provided would be nearer to any highway which bounds the curtilage than—

(i) the part of the original dwellinghouse nearest to that highway, or

(ii) any point 20 metres from that highway,

whichever is nearer to the highway;

(c) where the building to be constructed or provided would have a cubic content greater than 10 cubic metres, any part of it would be within 5 metres of any part of the dwellinghouse;

(d) the height of that building or enclosure would exceed—

(i) 4 metres, in the case of a building with a ridged roof; or

(ii) 3 metres, in any other case;

(e) the total area of ground covered by buildings or enclosures within the curtilage (other than the original dwellinghouse) would exceed 50% of the total area of the curtilage (excluding the ground area of the original dwellinghouse); or

(f) in the case of any article 1(5) land or land within the curtilage of a listed building, it would consist of the provision, alteration or improvement of a building with a cubic content greater than 10 cubic metres.