Class 15 – One or more garden sheds or summer houses may be erected within the curtilage of a dwelling provided;
a) the general conditions applicable to Section A
Section A —General Conditions as amended
1) No part of the development may be constructed within 9 metres (measured at ground level) of the route of any overhead electrical line carrying 11kv or more (High tension power cable);
2) No part of the development may be constructed within 9.1 metres of the bank of any designated watercourse under the Flood Risk Management Act 2013;
Also included from Schedule 4 of the Order
(2A) The operations specified must not be constructed (including any foundations) so as to involve the felling, lopping or limbing of any tree (other than a tree referred to in section 3(3) of the Tree Preservation Act 1993).
b) the height of the garden shed or summer house must not exceed 2.8 meters above ground level;
c) the area of the ground covered by the garden shed or summer house must not cumulatively exceed 15 sq metres in total; and
d) no part of the garden shed or summer house may be nearer to any highway which bounds the curtilage of the dwelling house than
i) that part of the dwellinghouse nearest to the highway, or
11) 20 metres
whichever is the nearer.