Not less than four days before the date stated in the summons, the owner or any right holder of the building concerned may, if he intends to show cause why an order should not be made—
(a) in the case of the owner, deliver to the clerk of court, the authority and any right holder;
(b) in the case of any right holder, deliver to the clerk of court, the authority and the owner;
copies of a written statement setting out his reasons for opposing the making of the order.