s 214B Rights to enter without warrant.
(1) Any person duly authorised in writing by a local planning authority may enter any land for the purpose of— (a) surveying it in connection with making or confirming a tree preservation order with respect to the land; (b) ascertaining whether an offence under section 210 or 211 has been committed on the land; or (c) determining whether a notice under section 207 should be served on the owner of the land, if there are reasonable grounds for entering for the purpose in question. (2) Any person duly authorised in writing by the Secretary of State may enter any land for the purpose of surveying it in connection with making, amending or revoking a tree preservation order with respect to the land, if there are reasonable grounds for entering for that purpose. (3) Any person who is duly authorised in writing by a local planning authority may enter any land in connection with the exercise of any functions conferred on the authority by or under this Chapter. (4) Any person who is an officer of the Valuation Office may enter any land for the purpose of surveying it, or estimating its value, in connection with a claim for compensation in respect of any land which is payable by the local planning authority under this Chapter (other than section 204). (5) Any person who is duly authorised in writing by the Secretary of State may enter any land in connection with the exercise of any functions conferred on the Secretary of State by or under this Chapter. (6) The Secretary of State shall not authorise any person as mentioned in subsection (2) without consulting the local planning authority. (7) Admission shall not be demanded as of right— (a) by virtue of subsection (1) or (2) to any building used as a dwellinghouse; or (b) by virtue of subsection (3), (4) or (5) to any land which is occupied, unless twenty-four hours’ notice of the intended entry has been given to the occupier. (8) Any right to enter by virtue of this section shall be exercised at a reasonable hour.