Paragraph 68

the building is a dwellinghouse or the building or structure is within the curtilage of a dwellinghouse;

the development is permitted by class 4A(1);

the development is permitted by Part 20;

it would result in the presence on the building or structure of–

in a designated area it would result in–

for a building or structure over 15 metres in height, the highest part of the microwave antenna or its supporting structure would be more than three metres higher than the highest part of the building or structure on which it is installed or is to be installed;

for a building or structure under 15 metres in height, with a chimney, the highest part of the microwave antenna or its supporting structure would be higher than the highest part of the chimney, or 60 centimetres measured from the highest part of the ridge tiles of the roof, whichever is the lower;

for a building or structure under 15 metres in height, without a chimney, the highest part of the microwave antenna or its supporting structure would be higher than the highest part of the roof; or

it involves construction or installation of a ground based mast.

the antenna shall, so far is practicable, be sited so as to minimise its effect on the external appearance of the building or structure on which it is installed;

a microwave antenna no longer needed for reception or transmission purposes shall be removed from the building or structure as soon as reasonably practicable;

the length of a microwave antenna is to be measured in any linear direction and shall exclude any projecting feed element, reinforcing rim, mounting or brackets.