Effect of completion notice
65.—(1) A completion notice shall not take effect unless and until it is confirmed by the Department.
(2) In confirming a completion notice the Department may substitute a longer period for that specified in the notice as the period at the expiration of which the planning permission is to cease to have effect.
(3) If, within such period as may be specified in a completion notice (which shall not be less than 28 days from its service) any person on whom the notice is served so requires, the Department, before confirming the notice, must give that person and the council an opportunity of appearing before and being heard by the planning appeals commission.
(4) If a completion notice takes effect, the planning permission referred to in it shall become invalid at the expiration of the period specified in the notice (whether the original period specified under section 64(1) or a longer period substituted by the Department under subsection (2)).
(5) Subsection (4) shall not affect any permission so far as development carried out under it before the end of the period mentioned in that subsection is concerned.