The construction or installation of a stage or platform used for a community event is development specified for this code if it is not exempt development and is carried out on any of the following land--
(a) land in the following zones--(i) a business zone,(ii) an employment zone, other than Zone E5,(iii) a mixed use zone,(iv) an industrial zone, other than a heavy industrial zone,(v) an open space zone,(vi) a special purpose zone,(vii) Zone W4,
(b) land that is unzoned.