Sewered commercial plumbing applications

This information is designed to assist you with the preparation of the required documentation for a plumbing application for a sewered commercial site, so that it may be assessed in a timely manner.

Please note, applications missing information may experience processing delays.

The expected timeframe for a plumbing application on a sewered commercial site is 10 business days for preliminary assessment, then 20 business days for plan assessment.

Alterations or additions to existing stuctures

If your application relates to an addition or alteration to an existing structure, you may not need to complete this application.  Your building certifier may advise you to engage a concurrence agency to determine if an application is necessary.


STEP 1 Complete the checklist

STEP 2 – Complete the state government forms

STEP 3 – Submit your application

STEP 4 Approval and inspections

STEP 5 Final inspection and plumbing compliance

STEP 6 Submit a trade waste application if required



Related information

Class 2-9 plumbing checklist 

Construction of buildings in flood hazard areas

Example house drain plans and templates

Form 1 Application for compliance assessment

Form 7 Notification of responsible person

Minimum standards for hydraulic plans 


Water supply