City of Marion v Paior

The City of Marion appealed a decision of the Environment, Resources and Development Court concerning its jurisdiction and powers. The dispute arose from the Council's categorisation of a proposed development as Category 1, which led to the granting of development authorisation without notification to adjacent owners, the Paiors. The Paiors subsequently sought a review of this categorisation, arguing the development should have been classified as Category 3, and sought to have the development authorisation set aside.

The Court was required to determine two primary legal issues. First, whether the Court's jurisdiction to review a categorisation decision under section 86(1)(f) of the Development Act 1993 (SA) ceased upon the grant of development authorisation. Second, whether the Court possessed the power, on such a review, to set aside a development authorisation that was consequential to an erroneous categorisation decision.

The Full Court, dismissing the appeal, held that the Court's jurisdiction to review a categorisation decision under section 86(1)(f) does not terminate upon the grant of development authorisation. Furthermore, the Court affirmed that it has the power under section 88(1) of the Act, when setting aside an incorrect categorisation determination, to make a consequential order setting aside a development authorisation that was predicated on that erroneous categorisation. The Court found that the Paiors' application for review was validly brought and that the Court had the necessary jurisdiction and powers to grant the relief sought.