In many cases, you can install a simple rainwater tank on your property without having to apply for a building or resource consent.
Where your tank will be placed and whether it will be connected to your internal plumbing or not are key factors to determine if you need building and/or resource consent.
Use our consent checker tool to find out if you need a consent for your rainwater tank.
The tool does not apply to:
This consent tool is currently unavailable due to maintenance work. It will be available again in mid-2023, or in the meantime you can view our rainwater tank standards document (PDF 596KB)
Building consent checks for health and safety, including structural stability and safety of drinking water.
| Rainwater tank use and set-up | Do I need a consent? |
|---|---|
| Tank for outdoor use only and sits on ground | No |
| Tank is on a supporting structure instead of on the ground | Maybe — building consent requirements depend on tank size in relation to height of support structure |
| Rainwater is for indoor use and/or connected to internal plumbing | Yes — you will also need to ensure the installation is carried out by a qualified, registered plumber |
Find out more about building consents to add a rainwater tank.
A resource consent is written approval to carry out a project that has an impact on the environment or could affect other people.
Recent changes to the Auckland Unitary Plan and Hauraki Gulf Islands District Plan made it simpler to install a rainwater tank in residential areas.
If you plan carefully where your rainwater tank is sited on your property and you don’t live in a Historic Heritage overlay, then you may not need a resource consent.
In most residential zones, you may not need a resource consent if:
Properties within the Historic Heritage Overlay require a resource consent for a rainwater tank. Email the Heritage team at heritage@aucklandcouncil.govt.nz for more information.
The zone or overlay you are in will determine where you can position a rainwater tank without needing a resource consent.
Find out more about requirements for the zone or overlay you live in.
We can advise you whether you need consent(s) tailored to your particular situation.
Email the Streamline Resource Consent team at streamlinerc@aucklandcouncil.govt.nz for any queries.
If you are replacing natural ground with sealed surfaces, in either a new build or the development of an existing property, you may be required to manage the additional stormwater runoff generated. A rainwater tank is one way to do this.
See the Auckland Design Manual website for more information on stormwater management devices.
