Additions to and deletions from record of protected structures.

54.—(1) A planning authority may add to or delete from its record of protected structures a structure, a specified part of a structure or a specified feature of the attendant grounds of a structure, where—

(a) the authority considers that—

(i) in the case of an addition, the addition is necessary or desirable in order to protect a structure, or part of a structure, of special architectural, historical, archaeological, artistic, cultural, scientific, social or technical interest, whether or not a recommendation has been made under section 53 , or

(ii) in the case of a deletion, the protection of the structure or part is no longer warranted,

and

(b) the addition or deletion is made when making a development plan under Part II or in accordance with section 55 .

(2) The making of an addition to, or a deletion from, a record of protected structures shall be a reserved function.