Wastewater: industrial, commercial and subdivisions

You must seek approval from the Department of Health before you can:

  • install an on-site wastewater system on industrial or commercial property
  • or install a large scale or decentralised wastewater system on a commercial, industrial or residential subdivision.

Read more about wastewater works design approval, including how to apply.

All wastewater systems must be installed by a licensed plumber. If the system is to be installed inside a building control area, the design and installation must be certified.

Subdivision and development

If you plan to develop or subdivide land read the guidelines for land capability assessment for on-site wastewater management.

Guidelines for land capability assessment for on-site wastewater management (1.3 mb)
Guidelines for land capability assessment for on-site wastewater management (1.4 mb)

Read about wastewater codes and guidelines.

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Last updated: 27 June 2017