The first appellant owned two sectional title units (units 18 and 19) in the sectional title scheme known as Klub 40, situated on the farm Anniesrus near the Vaal River and within the Vaal River Barrage area. The scheme and its predecessors had erected habitable buildings and related structures below the defined flood control line without the written consent of the Rand Water Board, as required by the applicable Guide Plan and later the Regional Structure Plan under the Physical Planning Acts. Although a sectional title plan was conditionally approved in 1996, that approval required the removal of certain illegal structures. Most owners settled with the Rand Water Board and agreed to demolish the offending buildings. The first appellant persisted in opposing the demolition order, relying on the stamped approval on the sectional title plan and provisions of the Sectional Titles Act.