New home or renovation
If you're planning building or excavation work on your property, we'll need to assess your plans before construction can start.
This includes projects like new homes, extensions, sheds, pools, decks or retaining walls.
We'll check your building plans to make sure our water and sewer network stays protected and accessible when needed.
Follow these steps
1. Before you start
Check what's on your property
Choose one of the following:
Option 1: Get a free utility plan
Use Before You Dig Australia to see the location of underground services on your property.
Option 2: Buy a Hunter Water asset location plan
Purchase a detailed asset location plan if you need more information about our assets on your property.
Found an asset on your plan?
View our photos and descriptions to help identify it and see whether it may affect your project.
Important: If your project is close to or over our pipes or assets, you may need to submit a build over asset application ($183). A build over asset application helps protect our assets and maintain access for future repairs. If you're unsure, submit your plans and we'll let you know.
Get your plans ready
When you submit your application, you need to include a complete set of building plans, including:
- Site plan: A drawing that shows your entire property from above. It identifies where the building, driveway, fences and other structures are located on the block.
- Floor plan: A top-down view of the inside of the building. It shows the layout of rooms, walls, doors, windows, and fixtures including kitchens and bathrooms.
- Elevation plan: A drawing that shows what the building will look like from the outside. It shows features like windows, doors, the roof, and external finishes.
File format: PDF or Word, maximum file size: 200 MB
2. Submit your plans
Register or sign in to the Property Self Service Portal to submit your plans. We'll guide you through the application and tell you what information you'll need.
You can track the status of your application at any time in the Property Self Service Portal.
3. After you apply
Assessment process
We review your plans to make sure our water and sewer network remains protected and accessible.
- If your plans don't affect our assets, we'll review and stamp your site plan.
- If your plans affect our assets, we'll stamp your site plan and let you know the if there are any additional applications or assessments required.
Download your stamped plans
Your stamped site plan can be downloaded from our portal. You can then submit the plan to your local council or certifier.
Additional applications
If a build over sewer application is required, we'll let you know by email.
Connect to our services (new homes only)
Once construction is complete, your plumber can:
- connect your water and sewer services
- apply for any required new connections
- arrange installation of your water meter
Help and advice
Get in touch with our team:
- call us on 1300 657 657 (Monday to Friday, 8am – 5pm)
- use Live Chat during business hours
- send us an email