Domestic Greywater Treatment Systems

If you plan to install a domestic greywater treatment system on your property, you will need to apply for a permit through the City of Stonnington.

To check if you need a permit, call our Environmental Health team on 03 8290 1333 or email council@stonnington.vic.gov.au

If a permit is required, you must not install or use the system until a permit is issued.

For more information on greywater use, visit our save water page.

How to apply

Check if the system is certified

Only greywater systems with a valid certificate under certain Australia Standards are permitted. 

To check if your system is certified, visit EPA Victoria.

Contact your local water retailer

Discuss your plans with your local water retailer. Depending on your address, this may be South East Water or Yarra Valley Water.

Prepare your documents

Your application must include a copy of a valid 'certificate of conformity' for the system. This should be provided by the manufacturer.

You will also need to provide a scaled site plan demonstrating all parts of the system, including:

  • storage chambers
  • pumps
  • irrigation area
  • overflow relief gully
  • diversion to sewer
  • the location of all fixtures supplying or connected to the system.

The site plan must also include any:

  • property boundaries
  • driveways
  • swimming pools
  • fall of land.

Submit your application

You can submit your application, along with the supporting documents, online.

Apply online

Once your application is received, we will contact you within 10 business days to arrange payment and a site inspection.

If you'd like a paper version of the application form, call our Environmental Health team on 03 8290 1333 or email council@stonnington.vic.gov.au

Site inspections

Once your application is received, we will contact you to arrange a preliminary site inspection. You must not install the system until a ‘permit to install’ has been issued.

Once the system is installed, you will need to arrange a final inspection. You must not use the system until a ‘permit to use' has been issued.

A permit will only be issued if all site inspections are complete.

Maintain your system

It is your responsibility to ensure the system is regularly maintained and serviced. Your permit will include conditions for ongoing maintenance and servicing.

For more information, visit the EPA Victoria website.