(1) An authorised officer of a planning entity may, at a reasonable time, enter land or a building to conduct an inspection, a survey, study, an examination or investigation necessary for the performance of the functions of the planning entity under this Act or to abate a nuisance, prevent a breach or carry out an enforcement pursuant to the provisions of this Act.

(2) A survey or investigation in subsection (1) includes the taking of photographs.

(3) The authorised officer of a planning entity shall, before exercising the power under subsection (1), give three days’ notice to the owner or occupier.

(4) The authorised officer of a planning entity shall, on request by the occupant of the land or building, produce the authorisation.

(5) Despite subsection (3), an authorised officer may enter any land or building without notice in order to carry out the functions specified under section 121.