If you do not live in an area with reticulated sewerage and you are building a house or extending an existing home to add more bedrooms, you need to apply for a permit to install or alter a septic tank system. Septic systems are based on the number of bedrooms in a home.
Permits are valid for two years and construction of the system must be installed as outlined in the permit to install.
A 'Permit to Use' will be issued once the system is installed and all necessary inspections have been completed and the plumber's compliance certificate submitted.
When you have completed a septic tank application form send your form with the following documents:
- Site plan for either installation or alteration
- Plan of the location of the site
- Site plan of the proposed installation
- Copy of the land capability assessment report (see list below)
- Copy of certificate of conformity (only required for aerated wastewater system)
- A full copy of current title for the property
A council officer will contact the customer to take payment.
Fees (valid from 1 July 2026)
- Install a septic tank system - application: $844
- Alter a septic tank system - application: $643
- Renew permit to install: $143
- Search for septic tank plans: $29
You can get more information and advice by calling us on 5153 9500.
The system you install must be approved by the Environment Protection Authority (EPA). Visit the EPA website for more information.
Decommissioning a Septic Tank
Please notify us when a septic tank has been decommissioned using the Septic Tank Decommissioning Notifcation Form.