16 As Mr Hayes QC, for the defendant, pointed out, anomalies arise from the plaintiff's interpretation of Clause 2 of the schedule. If Mr and Mrs Mere applied for consent to build their existing house and proposed carport, and if it complied with the conditions contained in Table Un1 of the City of Unley Development Plan (which conditions are not unusual conditions for detached dwellings), the whole building would be a complying development under the Development Plan. As such it would be a Category 1 development by virtue of Clause 1 of Schedule 9 of the Development Regulations. No notice of the application would need to be given, and no third party rights of representation would be conferred. There would be no third party appeal to the ERD Court. Yet, if the attached carport were sought to be added later, that addition, on the plaintiff's argument, would have to be treated as a Category 3 development, requiring general public notice, conferring a right upon any member of the public to make representations, including an opportunity to appear personally or by representative to be heard in support of the representation, and conferring a right of appeal to the ERD Court by a person who has made a representation.