Provincial ordinances, including the Town-Planning and Townships Ordinance 15 of 1986, confer authority on municipalities to regulate land use within their municipal areas through town-planning schemes and township establishment controls. Chapters V and VI of the national Development Facilitation Act 67 of 1995 (DFA) conferred similar powers on provincial development tribunals, enabling them to approve land development and land use changes within municipal areas, even contrary to municipal planning schemes and integrated development plans. The City of Johannesburg experienced instances where the Gauteng Development Tribunal approved rezoning and township developments within its jurisdiction, despite municipal opposition and inconsistency with its planning instruments. After failed intergovernmental engagement, the City applied to the South Gauteng High Court for a declaration that Chapters V and VI of the DFA were unconstitutional. The High Court dismissed the application, and the City appealed to the Supreme Court of Appeal.