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Development approval is required when a water tank matches any of the following:

  • The water tank will be located within a State or local heritage place
  • The water tank is not part of the roof-drainage system
  • The water tank will have a total floor area exceeding 10m²
  • Any part of the water tank will be below ground
  • Any part of the water tank is higher than 4m above the natural surface of the ground.
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