To apply for a sewer service diagram or sewer location diagram (sewer drainage diagram), please submit an application.
Lodging sewer service diagrams
Sewer service diagrams must be submitted on a NSW Fair Trading template (found above).
These diagrams must include details of existing drainage and need to be authorised by the licenced plumbing contractors.
The sewer service diagram, along with the contractors’ Certificate of Compliance, needs to be submitted to our Plumbing Inspector at the time of final inspection.
You can contact us on 1300 133 455 if you have any questions that aren't answered below or you require further information.
Frequently Asked Questions
What if the Sewer Service Diagram won’t fit on either A4 or A3?
If the Sewer Service Diagram can’t be drawn onto either A4 or A3, you can use a larger paper size (A2 and A1). Any sizes larger than A3 should be submitted electronically as a PDF document.
As the licenced plumbing contractor, do I have to draw the Sewer Service Diagram myself?
No, you don’t have to draw the Sewer Service Diagram yourself, but you must authorise it before it’s submitted. You can engage a drafting consultant or someone else to complete the Sewer Service Diagram on your behalf.
Does the Sewer Service Diagram have to be drawn to scale?
Yes, the Sewer Service Diagram must be drawn to scale. NSW Fair Trading has preferred scales of 1:100, 1:200, 1:250 and 1:500. Other scales can be used, but the range prescribed by NSW Fair Trading should be sufficient for most development types.
Does the Sewer Service Diagram have to include existing drainage details?
Yes, the Sewer Service Diagram must include all details of existing drainage. Where a Sewer Service Diagram of an existing property is not available, the licensee conducting new work must investigate the existing drainage to make sure it’s connected and working. The assumed drainage must be shown on the Sewer Service Diagram as a dashed line (refer to the SSD symbols template and instructions above).
Call us on 1300 133 455 if you have any further questions.