How do I connect sewer services to my new home?

Connecting sewer is a critical step in the building process. It involves applying to your local council or water authority, engaging a licensed plumber or drainer, and ensuring the work complies with national plumbing standards. The process can take several weeks, so it’s important to plan ahead, especially if you're building in a rural area where mains sewer may not be available.

Step-by-step: Connecting to sewer

Apply to the local utility or council: Submit an application with your site and building plans to the relevant water authority (e.g. Sydney Water, Tweed Shire Council, Unity water). They’ll assess your site and issue a connection approval or service diagram showing where the sewer mains are located.

Pay connection and inspection fees: Fees vary depending on your location, distance to the nearest sewer main, and whether infrastructure upgrades are needed. You may also be charged developer contributions if your build increases demand on the network.

Engage a licensed plumber or drainer: Only a qualified and licensed contractor can carry out sewer connections. They’ll install the drainage pipes, connect to the mains, and ensure the system complies with the Plumbing Code of Australia and local standards.

Schedule inspections before backfilling: The council or water authority must inspect the sewer installation before trenches are filled. Inspectors check pipe sizing, alignment, gradient, and materials to ensure proper flow and durability.

Final approval and certification: Once the work passes inspection, the authority issues a compliance certificate. This is required before your Occupation Certificate can be granted.

Rural and off-grid properties

If your site is not connected to mains sewer, you’ll need an approved on-site wastewater treatment system, such as:

• Septic tanks

• Aerated wastewater treatment systems (AWTS)

• Composting toilets

These systems require separate council approvals, environmental assessments, and regular maintenance. Some councils may also require soil testing or effluent disposal plans.

How long does it take?

• Allow up to 6 weeks for approvals, installation, and inspections, or longer in rural or complex sites.

• Delays can occur due to weather, access issues, or utility scheduling.

Bottom line: Sewer connection is a regulated process that requires council approval, licensed trades, and formal inspections. Whether you're connecting to mains or installing a septic system, early planning is essential to avoid delays and ensure compliance.