If you’re planning to convert a shed into a dwelling on a property without access to a deep sewer in the City of Busselton, you’ll need to meet specific environmental health requirements for onsite effluent disposal.
These requirements help ensure wastewater is managed safely and in line with local and state regulations.
Effluent Disposal Requirements in Non-Sewered Areas
Properties that aren’t connected to a deep sewer must install an approved onsite effluent system. The type and size of the system depend on your site conditions, expected daily water usage, and intended use of the building.
When converting a shed to a habitable dwelling, this typically means applying for approval through the City or, in some cases, the Department of Health WA.
Step 1: Check for Sewer Availability
Before starting any plans, contact the Water Corporation to confirm whether your property has access to deep sewer. If sewer is unavailable, you’ll need an on-site system.
Step 2: Engage a Licensed Plumber
A licensed plumber can assess your site and advise on the most suitable effluent system based on your daily usage needs and property layout.
Step 3: Apply for Approval
The approval process depends on the expected water usage.
Residential Use (<540L/day)
Submit an Application to Construct or Install an Apparatus for the Treatment of Sewage to the City of Busselton. An inspection will be required before the system can be used.
The City must complete the assessment within 21 days of receiving all documents and fees.
Larger Residential or Commercial Use (>540L/day)
These applications are assessed by the Department of Health WA. The City accepts the application and fee on behalf of the Department and submits it along with a supporting report.
Approval must be granted before installation begins.
Read more about the application process and details here: https://www.busselton.wa.gov.au/resident/public-health-and-safety/waste-water.aspx
Step 4: Decommissioning Existing Systems (if applicable)
If you later connect to a deep sewer, the existing onsite system must be decommissioned by a licensed contractor. The contractor must notify the City of the decommissioning, and your property records will be updated. Download the Decommissioning of a Septic Apparatus form here.
At Westspan Sheds, our team is familiar with the local compliance requirements and can help guide you through the Busselton shed-to-dwelling process, including effluent system considerations. We work closely with local professionals to make sure your project meets all regulations. Contact us today to discuss your project.
