Development not permitted
T.3—(1) Subject to sub-paragraph (2), development is not permitted by Class T(a) if it will result in the installation of more than 1 item of apparatus (“the original apparatus”) on a site in addition to any item of apparatus already on that site on the relevant day.
(2) In addition to the original apparatus which may be installed on a site by virtue of Class T(a), for every 4 items of apparatus which existed on that site on the relevant day, 1 additional item of small apparatus may be installed.
(3) In sub-paragraph (2), “small apparatus” means—
(a)a dish antenna, other than on a building, not exceeding 5 metres in diameter and 7 metres in height;
(b)an antenna, other than a dish antenna and other than on a building, not exceeding 7 metres in height;
(c)a hard standing or other base for any apparatus described in paragraphs (a) and (b), not exceeding 7 metres in diameter;
(d)a dish antenna on a building, not exceeding 1.3 metres in diameter and 3 metres in height;
(e)an antenna, other than a dish antenna, on a building, not exceeding 3 metres in height;
(f)a mast on a building, not exceeding 3 metres in height;
(g)equipment housing not exceeding 3 metres in height and of which the area, when measured at ground level, does not exceed 9 square metres.