Owner-builder Approval - Western Australia


You will need this approval if you intend to carry out building work on your own property on projects valued over $20,000. Owner builders can build, renovate or extend the following building types:

  • Class 1a(i) - a single-residential detached house or habitable building on the same property but separate to the main house, such as a granny flat
  • Class 10 - a non-habitable building or structure, such as a private garage, carport or shed
  • small commercial building - a one or two storey building with a floor space of less than 500 square metres that is not a Class 1a(i) detached house, Class 10 building or a farm building.

Service type


A licence defines the need to obtain recognition / certification and registration to undertake a certain business activity.

Eligibility requirements

To be eligible for approval you must:

  • be a natural person
  • own or have interest in the property
  • intend to live, occupy or use the property
  • hold a relevant insurance policy
  • have successfully completed the required training course or be a registered building practitioner.


This approval will expire in six months after it is granted unless the owner-builder is granted a building permit, in which case the approval will expire when the building is completed. If the building permit is not granted, the approval will expire simultaneously.


Fees Details for this service in table format.

Task Type Business Structure Description
Apply Application Sole Trader

Fee information is in the attached fee resource.


Other resources

Task Business Structure Resources Important
Comply Company, Co-operative, Incorporated Association, Other, Partnership, Sole Trader Building and Energy Fee Schedule - Building Services and Plumbing (Opens in new window)
Comply Sole Trader Owner-Builder Application Guidance (Opens in new window) Important

Act(s) name

Building Services (Registration) Act 2011 Western Australia

Home Building Contracts Act 1991 Western Australia

Regulation(s) name

Building Services (Registration) Regulations 2011 Western Australia

Administering agency

Department of Energy, Mines, Industry Regulation and Safety

Building and Energy

Contact details

Contact Email, Phone and Address Details for this service in simple two column table format, header then data.