20.—(1) The inspector shall, as soon as practicable after reaching his decision, notify his decision on an appeal, and his reasons for it in writing to—
(a)the appellant and the local planning authority;
(b)all other persons entitled to appear at the inquiry who did appear; and
(c)any other person who, having appeared at the inquiry, has asked to be notified of the decision.
(2) Any person entitled to be notified of the inspector’s decision under paragraph (1) may apply to the Secretary of State in writing for an opportunity to inspect any documents listed in the notification and any report made by an assessor and the Secretary of State shall give him that opportunity.
(3) Any application made pursuant to paragraph (2) shall be sent to the Secretary of State within 6 weeks of the date of the decision.