47.—(1) Subject to subsection (2), F68[a person] in the performance of his or her functions under this Act, may, for the purpose of surveying and carrying out a valuation of any relevant property, at any reasonable time—

(a) enter on that property, and

(b) if it is necessary in order to so enter on that property or to survey or carry out a valuation thereof, enter on any other property,

and may survey and carry out a valuation of the first-mentioned property accordingly.

(2) F68[A person] shall not, without the consent of the occupier of the property, exercise the powers under subsection (1) in relation to a property referred to in paragraph (a) or (b) of that subsection unless, at least 3 days before the date on which he or she intends to so exercise those powers, he or she serves on the occupier of the property a notice of that intention.

(3) A person who obstructs or impedes F68[a person] in the exercise of any of his or her powers under this section shall be guilty of an offence.