Did you know installing a rainwater tank at your home can save you up to 25% on water bills? It’s also great for the environment because it reduces the amount of potable water (tap water) you use.

Water collected in a rainwater tank can be used to flush toilets, water the garden, wash the car and wash laundry. You should always test rainwater collected in your tank if you want to drink it.

Although installing a water tank comes at a cost, over time you will save money.

If you’re building a new home, installing a rainwater tank will help you reach the required six star energy rating for your home. But the tank must be installed so that:

  • it captures the rainwater from a minimum catchment area of 50m2
  • it has a capacity of at least 2,000 litres
  • it is connected to all toilets in the building for flushing.

Do I need a planning permit for a rainwater tank?

Usually you won’t need a planning permit for a rainwater tank. However, it depends on your property location as in some areas, a planning permit will be required. To find out if this applies to your property, please contact Council’s Planning Unit.

Do I need a building permit for a rainwater tank?

You will not need a building permit for a rainwater tank if:

  • you are adding the tank to an existing building
  • the tank isn’t attached to the building (plumbing connections excepted)
  • the tank won’t impose any extra load on the building
  • there are no excavations that could affect footings of existing buildings.

You will need a building permit for a rainwater tank if:

  • it is part of new building works, such as a new building, extension or alteration to an existing building
  • the tank will be attached to a building or impose a load upon it (such as being installed inside the building or partially bearing on a wall)
  • any excavations are needed to install tank which will affect footings of existing buildings.

For more information on rainwater tank installation, please contact Council’s Building Services Unit on 5481 2200 or 1300 666 535.