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Plumbing Approvals

If you're planning any plumbing works as part of your development you'll most likely need a plumbing approval.

A plumbing approval is required to carry out water, sewerage and stormwater works to a property and must be obtained before a plumber starts work on any job.

Application process

You can apply for a plumbing approval by downloading the Plumbing Works Application, completing and lodging it upon payment at our Kiewa Street office or by email to You'll need to submit with your application:

  • Site plan - indicating all levels, existing structures and vegetation
  • BASIX certificate - where relevant
  • Floor plan - existing and proposed works shown separately
  • Hydraulic design - for larger commerical projects

Applications are generally processed and issued within 5 working days from the date of system lodgement or with the Development Consent where relevant.

Before any plumbing works are started, you'll need to submit a Notice of Work at least 2 working days prior.

A Sewer Service Diagram and Certificate of Compliance must be submitted to before a final inspection is booked and carried out. This information is required to undertake the inspection.

Please ensure your Plumbing Approval number is included on all documentation.


The cost to provide a plumbing approval can be viewed in our fees and charges.

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