H. The installation, alteration or replacement of a satellite antenna on a dwellinghouse or within the curtilage of a dwellinghouse.
H.1 Development is not permitted by Class H if—
(a)the size of the antenna (excluding any projecting feed element, reinforcing rim, mountings and brackets) when measured in any dimension would exceed—
(i)45 centimetres in the case of an antenna to be installed on a chimney;
(ii)90 centimetres in the case of an antenna to be installed on or within the curtilage of a dwellinghouse on article 1(4) land other than on a chimney;
(iii)70 centimetres in any other case;
(b)the highest part of an antenna to be installed on a roof or a chimney would, when installed, exceed in height—
(i)in the case of an antenna to be installed on a roof, the highest part of the roof;
(ii)in the case of an antenna to be installed on a chimney, the highest part of the chimney;
(c)there is any other satellite antenna on the dwellinghouse or within its curtilage;
(d)in the case of article 1(5) land, it would consist of the installation of an antenna—
(i)on a chimney;
(ii)on a building which exceeds 15 metres in height;
(iii)on a wall or roof slope which fronts a waterway in the Broads or a highway elsewhere.
H.2 Development is permitted by Class H subject to the following conditions—
(a)an antenna installed on a building shall, so far as practicable, be sited so as to minimise its effect on the external appearance of the building;
(b)an antenna no longer needed for the reception or transmission of microwave radio energy shall be removed as soon as reasonably practicable.
I. For the purposes of Part 1—
“resulting building" means the dwellinghouse as enlarged, improved or altered, taking into account any enlargement, improvement or alteration to the original dwellinghouse, whether permitted by this Part or not; and
“terrace house" means a dwellinghouse situated in a row of three or more dwellinghouses used or designed for use as single dwellings, where—
it shares a party wall with, or has a main wall adjoining the main wall of, the dwellinghouse on either side; or
if it is at the end of a row, it shares a party wall with or has a main wall adjoining the main wall of a dwellinghouse which fulfils the requirements of sub-paragraph (a) above.