Most commercial or industrial developments require connection approval from Unitywater, to ensure our networks can maintain reliable and efficient service to your property and our existing customers. Even if you already have a water meter or sewer connection, you may still need to make a connection application.

For water and sewerage connection approvals

Find a Registered Certifier

Get connected now

Before applying to connect:

The connection approvals process for commercial and industrial projects can be complex and involved, as we need to ensure that any new developments don’t put the health of our communities or our service standards at risk.

A Registered Certifier helps you navigate each of these phases and get your project to market quicker.

 For connection applications they assist with:

  • Preparing and submitting your connection application
  • Identifying allowable yield for the site
  • Finding any existing approvals on the site or on adjacent sites
  • Determining whether the existing water and sewer network can accommodate your development, or if additional infrastructure is required
  • Assessing firefighting requirements
  • Identifying sub-metering requirements
  • Providing design advice on Unitywater-approved allowable servicing solutions
  • Calculating Infrastructure Charges payable with development
  • Preparing your Certificate of Completion, for Unitywater’s approval.

 If network works are required, they also help with:

  • Preparing and submitting your network works application
  • Conducting an on-site pre-start meeting on our behalf
  • Ensuring your contractor understands Unitywater’s requirements
  • Flagging and fixing any issues that could delay your approval
  • Completing final inspections
  • Conducting final testing of construction works
  • Arranging live connections
  • Managing handover of network infrastructure to Unitywater.

Our Accreditation Register helps you find the right Registered Certifier to assist with your application and prevent any approval delays. To standardise the application process and achieve faster approvals, from 1 July 2021 we’ll only be accepting connection applications prepared by a Registered Certifier.

In addition to engaging a Registered Certifier, we recommend you request a Services Advice Notice (SAN) before starting your application.

This free service saves you time and cost by providing upfront advice that helps you understand what’s involved in applying to connect, and what supporting information is required to lodge a successful application.

Before lodging a SAN, talk to your certifier as they may be able to provide similar advice in a quicker timeframe.

Services Advice Notice 9289 (PDF 140KB) 


What to submit with your application after the Services Advice Notice:

You will need:

  • the land owner’s consent
  • consent from owners of any nearby property affected by the proposed work, e.g. if access is required
  • the Lot and Plan Number of your property
  • a street plan that adequately locates the property
  • construction plans showing gross floor area
  • hydraulic plans – including details of water supply and sewerage connection, and sub-meters (if applicable)
  • a network demand assessment
  • a document detailing the nature of your development.

You’ll also be asked to provide information regarding any high risk activities that may require backflow prevention devices, containment protection, pre-treatment devices or a trade waste meter. 

5 phases of connecting to our network: 

If your commercial or industrial development involves extensions or modifications to our mains infrastructure, there are 5 approval phases to work through before handing over the assets to Unitywater to maintain: Planning, Application, Construction, Connection and Final Acceptance.

If network extensions or modifications aren’t required, the Construction and Final Acceptance phases do not apply.

A Registered Certifier helps with each phase of the approvals process.

In this phase you will be planning your development and preparing plans and documents to submit to council and Unitywater for approval.

We recommend that you request a Service Advice Notice (SAN) during this phase.

The SAN is a free advisory service that helps you to submit a complete application and ensures your application is assessed in the shortest time possible.

Services Advice Notice F9289 (PDF 140KB)

The first step is to submit the documentation and plans for your connection application. If your development requires extensions or modifications to the existing mains, you also need to submit a networks works application. These applications can be submitted together or separately, by your Registered Certifier.

What you need:

  • A Unitywater SAN
  • Approvals from council, if received
  • Development plans/designs.

Apply now with a Connection Application Form F9293 (PDF 380KB)

This phase only applies to developments that involve you or your sub-contractors making extensions or modifications to our water or sewer mains.

The construction phase always starts with an onsite pre-start meeting between you or your consulting engineer, your contractor (or principal contractor and sub-contractor) and a Registered Certifier, who acts on Unitywater’s behalf.

A Major Connection Certifier and a Construction Certifier work together during this phase to prevent delays by ensuring all work is carried out to Unitywater’s satisfaction.

What you need:

  • Approvals from council and Unitywater
  • A contractor to complete the works.

All developments involve a live connection phase. In this phase you pay your Infrastructure Charges Notice (ICN) and receive a Certificate of Completion.

A Major Connection Certifier and a Construction Certifier work together to assist with arranging live connections, final inspections, network testing and managing handover of infrastructure to Unitywater.

Live connections to our network are carried out exclusively by our Private Works team. These industry specialists help guarantee the safety of our water supply by ensuring there is no risk of contamination during the connection process.

If your development did not involve network works, then the connection phase proceeds as below. 

You certifier requests your services to be connected
You pay your Infrastructure Charges Notice (ICN)
Unitywater establishes the live network connection

This is undertaken by our Private Works team.

Your certifier prepares your Certificate of Completion

And submits to Unitywater for approval.

What you need:

  • Completion of contracted works.

All developments involve a live connection phase. In this phase you pay your Infrastructure Charges Notice (ICN) and receive a Certificate of Completion.

For developments that did involve network works, this phase is referred to as the On-maintenance phase and proceeds as below.

Your certifier prepares and submits an On-maintenance Package
You pay a bond

This is returned after your works have successfully completed the defect liability period.

Your Construction Certifier inspects the works
If defects are found, these need to be rectified and the work re-inspected. 
You pay your Infrastructure Charges Notice (ICN)
Unitywater establishes the live network connection
This is undertaken by our Private Works team.
Your certifier prepares your Certificate of Completion
And submits to Unitywater for approval.
Your development enters the On-maintenance period
This is usually 12 months long. 

After receiving the Certificate of Completion and the network is live, you remain financially liable for any defects identified until the defect liability period ends and the works pass an Off-maintenance inspection.

What you need:

  • Payment of Infrastructure Charges
  • Payment of live connection fee

This phase involves the Final Acceptance of the network assets and their maintenance to Unitywater. It only applies if network works were required.

You initiate this by submitting an Off-maintenance Request to Unitywater when the On-maintenance period has ended.

Once the works have been inspected to the satisfaction of a Construction Certifier, we return your bond and your development is complete. 

If defects are detected, they need to be rectified and re-inspected before Final Acceptance is finalised. 

What you need:

  • Inspection by a Construction Certifier
  • Your certifier submits an Off-Maintenance
    Package.
Building a commercial and industrial property

How a certifier can help

A Registered Certifier helps make the approvals process easier and faster by preparing, assessing and submitting your applications for Unitywater’s approval.

 For connection applications they help with:

  • Preparing and submitting your connection application
  • Identifying whether the existing water and sewer network can accommodate your development, or if additional infrastructure is required
  • Providing design advice on Unitywater-approved allowable servicing solutions
  • Calculating Infrastructure Charges payable with development
  • Assessing firefighting requirements
  • Identifying sub-metering requirements
  • Drafting Certificates of Completion for Unitywater’s approval.

 If network works are required, they help with:

  • Preparing and submitting your network works application
  • Conducting pre-start meetings on our behalf
  • Completing final inspections
  • Conducting final testing of construction works
  • Arranging live connections
  • Managing handover of network infrastructure to Unitywater.

Our Accreditation Register helps you find the right Registered Certifier to assist with your application and prevent any approval delays.

To standardise the approvals process, from 1 July 2021 we’ll only be accepting connection applications prepared by a Registered Certifier. We’ll assess submitted Certification Packages and issue Decision Notices within 10 business days from receipt.

In the planning phase, you will be planning your development and preparing plans and documents to submit to council and Unitywater for approval.

We recommend that you request a Service Advice Notice (SAN) during this phase. The SAN is provided free by Unitywater and will help you submit a complete application and ensure your application is assessed in the shortest time possible.

Services Advice Notice F9289 (PDF 140KB)

You check if there are any water or sewerage easements on your property

Do this by purchasing a title search and survey plan via Department of Natural Resources and Mines.

You design your building work to avoid encroaching on any Unitywater easement if identified within your property

If this is not possible then you can ask us for approval for an encroachment.

Unitywater will assess your encroachment application (if needed)

The first step is to submit the documentation and plans for your connection application. If your development requires extensions or modifications to the existing mains, you also need to submit a networks works application. These applications can be submitted together or separately, by your Registered Certifier.

What you need:

  • A Unitywater SAN
  • Approvals from council, if received
  • Development plans/designs.

You check if there are any Unitywater assets on your property or your neighbour's property

Do this by requesting a Detailed Infrastructure Plan from us online. 

If there are any assets, you need to engage a building certifier

The building certifier assess your proposed building work against the Queensland Development Code MP 1.4 – Building over or near relevant infrastructure. 

If the code conditions cannot be met, then your certifier will help you apply to build over or near infrastructure

You must use the documents and checklist on our building and renovating page if you need to build over or near infrastructure.

This phase only applies to developments that involve you or your sub-contractors making extensions or modifications to our water or sewer mains.

The construction phase always starts with an onsite pre-start meeting between you or your consulting engineer, your contractor (or principal contractor and sub-contractor) and a Registered Certifier, who acts on Unitywater’s behalf.

A Major Connection Certifier and a Construction Certifier work together during this phase to prevent delays by ensuring all work is carried out to Unitywater’s satisfaction.

What you need:

  • Approvals from council and Unitywater
  • A contractor to complete the works.

All developments involve a live connection phase. In this phase you pay your Infrastructure Charges Notice (ICN) and receive a Certificate of Completion.

Live connections to our network are carried out exclusively by our Private Works team. These industry specialists help guarantee the safety of our water supply by ensuring there is no risk of contamination during the connection process.

If your development did not involve network works, then the connection phase proceeds as below.

All developments involve a live connection phase. In this phase you pay your Infrastructure Charges Notice (ICN) and receive a Certificate of Completion.

Developments that involve upgrades or extensions to our mains (network works), go through an On-maintenance phase to ensure infrastructure is operating correctly. This proceeds as follows:

This phase involves the Final Acceptance of the network assets and their maintenance to Unitywater. It only applies if network works were required.

You initiate this by submitting an Off-maintenance Request to Unitywater when the On-maintenance period has ended.

Once the works have been inspected to the satisfaction of a Construction Certifier, we return your bond and your development is complete. 

If defects are detected, they need to be rectified and re-inspected before Final Acceptance is finalised. 

What you need:

  • Inspection by a Construction Certifier
  • Your certifier submits an Off-Maintenance
    Package.

A surcharge will apply for credit card payments (Mastercard and Visa) on Sundry accounts being paid at our Maroochydore and Caboolture counters or over the phone with the Credit Card Payment Authority form. Find out more