The installation, alteration or replacement on any building or other structure of a height of less than 15 metres of a satellite antenna.
Development is not permitted by Class B if—
(a)the building is a dwellinghouse or the building or other structure is within the curtilage of a dwellinghouse;
(b)it would consist of development of a kind described in paragraph A of Part 24;
(c)it would consist of the installation, alteration or replacement of system apparatus within the meaning of section 8(6) of the Road Traffic (Driver Licensing and Information Systems) Act 1989 (definitions of driver information systems etc.);
(d)the size of the antenna (excluding any projecting feed element, reinforcing rim, mountings or brackets) when measured in any dimension would exceed—
(i)90 centimetres in the case of an antenna to be installed on a building or structure on article 1(4) land;
(ii)70 centimetres in any other case;
(e)the highest part of an antenna to be installed on a roof would, when installed, exceed in height the highest part of the roof;
(f)there is any other satellite antenna on the building or other structure on which the antenna is to be installed;
(g)it would consist of the installation of an antenna on a chimney;
(h)it would consist of the installation of an antenna on a wall or roof slope which fronts a waterway in the Broads, or a highway elsewhere.
Development is permitted by Class B subject to the following conditions—
(a)the antenna shall, so far as practicable, be sited so as to minimise its effect on the external appearance of the building or structure on which it is installed;
(b)an antenna no longer needed for the reception or transmission of microwave radio energy shall be removed from the building or structure as soon as reasonably practicable.