SCHEDULE 2Permitted development rights
PART 16Communications
Class A – electronic communications code operators
Development not permitted: ground or base area
(4)
Development is not permitted by Class A(a) if, in the case of the installation, alteration or replacement of any apparatus other than—
(a)
a mast;
(b)
an antenna;
(c)
a public call box;
(d)
any apparatus which does not project above the level of the surface of the ground; or
(e)
radio equipment housing,
the ground or base area of the structure would exceed 1.5 square metres.