20.3.—(1) The court may deal with an appeal or any part of an appeal at a hearing or without a hearing.
(2) In considering whether it is necessary to hold a hearing, the court shall have regard to the matters set out in rule 3.6(5).
(3) Any person bound by an order of the court by virtue of rule 9.14 (persons to be bound as if parties) may seek permission under this Part.
(4) All parties to an appeal must comply with any relevant practice direction.
(5) Where permission is required, it is to be granted or refused in accordance with this Part.
(Rule 13.4 provides for reconsideration of orders made without a hearing or without notice to a person.)