Where it appears to the local planning authority that there has been a breach of planning control after the end of 1963, then, subject to any directions given by the Minister and to the following provisions of this section, the authority, if they consider it expedient to do so having regard to the provisions of the development plan and to any other material considerations, may serve a notice under this section (in this Act and the principal Act referred to as an " enforcement notice ") requiring the breach to be remedied.
There is a breach of planning control if development has been carried out, whether before or after the commencement of this Part of this Act, without the grant of planning permission required in that behalf in accordance with Part III of the principal Act, or if any conditions or limitations subject to which planning permission was granted have not been complied with.
Where an enforcement notice relates to a breach of planning control consisting in—
it may be served only within the period of four years from the date of the breach.
An enforcement notice shall be served on the owner and on the occupier of the land to which it relates and on any other person having an interest in that land, being an interest which in the opinion of the authority is materially affected by the notice.
An enforcement notice shall specify—
The steps which may be required by an enforcement notice to be taken include the demolition or alteration of any buildings or works, the discontinuance of any use of land, or the carrying out on land of any building or other operations.
Subject to section 16 below, an enforcement notice shall take effect at the end of such period, not less than twenty-eight days after the service of the notice, as may be specified in the notice.
The local planning authority may withdraw an enforcement notice (without prejudice to their power to serve another) at any time before it takes effect; and, if they do so, they shall forthwith give notice of the withdrawal to every person who was served with the notice.