Residential subdivisions

There are two types of residential subdivisions, Urban Residential and Rural Residential.

  • Urban Residential subdivisions have an average lot size smaller than 2,000 m2 and have frontages of 15 to 25 metres
  • Rural Residential subdivisions have an average lot size greater than 2,000 m2 each.

If you’d like to see areas on our electricity network that can support a new subdivision, refer to our interactive Network Capacity Map.

The Developers Handbook (PDF 298.2 kb) provides further information about the complete connection process, including the connection offer stage and supporting explanations.

Network connection process

1. Enquiry

You will first need to decide who will be undertaking the design and construction of your subdivision electrical works. Subdivision construction is considered contestable work (excluding overhead supplied subdivisions which can only be constructed by us).

If you would like to use an Ergon approved service provider to design and construct the electrical works, please engage an Ergon Approved Subdivision Designer (PDF 174.1 kb) who will complete the online developer enquiry form.

If you would like to engage us to design and construct your electrical works, please lodge a detailed enquiry on the Customer Self Service Portal.

We will contact you within 5 business days (or other agreed date) to confirm details and provide more information on the process.

We’ll also provide you with a Works Request number. This number should be referenced on all future communications with us.

Information about multiple stage developments

If you have multiple (two or more) stages, a Master Plan showing the lots and transformation locations for the entire development is required.

If a formal planning study is needed, we’ll provide a quote and time frame for this work.

A design concept/master planning meeting can be requested by selecting the ‘Concept meeting’ check box on your developer enquiry form.

2. Design

Your design must be completed by a design consultant from our Approved Subdivision Designers list (PDF 174.1 kb).

3. Application

To apply for connection to our network, you must email a completed Subdivision Application Form (PDF 317.7 kb) to

There will be various costs, including an application fee, design fee and site inspection charges. See our latest price lists on our Connections charges webpage.

In order for us to process your application, the following is required:

  • Acceptance of the application fee, design fee and any other relevant charges
  • An electronic copy of the proposed subdivision Electrical Reticulation/Street Lighting plan and other plans detailing other services (i.e. sewerage, water, storm water, telecommunications and gas)
  • A copy of the local government’s conditions for the development approval
  • Details of the construction contractors you have engaged from our Approved Subdivision Construction Contractors list (PDF 185.8 kb)
  • Nomination of the materials suppliers for any Category A materials (refer to Developers Handbook (PDF 298.2 kb)).

4. Offer

We will make a connection offer within 65 business days of receiving your completed application. It must be accepted within 20 business days.

You may accept our connection offer and enter into a new Negotiated Connection Establishment Contract by:

  • Returning signed copies of the relevant documents
  • Paying any relevant fees
  • Satisfying all other requirements set out in the contract by the due date.

Read more about connection offer terms

If the connection offer is not accepted within 20 business days (or other date agreed in writing with us), it will automatically lapse.

If you wish to recommence the project at a later date, a new connection application will be required along with the relevant application fee.

5. Construct

Site construction works may only commence following a pre-start meeting and confirmation that design plans have been reviewed and approved by us.

We need to inspect conduits or other such infrastructure before its buried or hidden from view. We may also do random audits at any time during the construction phase without notice.

We’ll conduct a final audit after construction is completed. Any defects found during this final audit must be rectified before a Certificate of Acceptance can be issued.

6. Connection

It’s important that you notify us of the expected completion date well in advance, so we can schedule the final testing and commissioning works. This helps to ensure the timely connection of the development.