New South Wales Consolidated Regulations New South Wales Consolidated RegulationsDevelopment on flood affected land is to be sited and designed to minimise
impacts of flooding on property and have regard to the existing flood regime.
In particular:
• development is not to reduce flood storage area or impact upon the existing flood regime,
• habitable floor areas of buildings are to be at a level of at least 500mm above the 1% annual exceedence probability flood level, and
• buildings or works affected by flooding are to be constructed of flood compatible building materials.For the purposes of this clause, "flood affected land" means land below the 1 per cent annual exceedance probability flood level.