The court observed that even if the Regional, Town and Country Planning Act were interpreted as granting power to cancel permits, the respondent could only depart from the requirements of notice and hearing in exceptional circumstances as provided in s 3(3) of the Administrative Justice Act, such as where the enabling statute expressly provides otherwise, or where the departure is reasonable and justifiable considering factors like urgency, public interest, and efficient administration. The respondent proffered no such justification. The court also noted that s 26(12) of the Regional, Town and Country Planning Act provides a mechanism for amending permits (with the holder's agreement and where the amendment is minor), suggesting this is the appropriate statutory avenue for modifying permit conditions rather than outright cancellation.