.jpg)
What Every Australian Owner Builder Needs to Know: The Definitive State-by-State Guide
By Owner Builder Institute - Updated Oct 2026 Thinking About Becoming an Owner Builder?
Taking on your own building project can give you greater control over your budget, design, contractors and construction process. But becoming an owner builder also means accepting many of the responsibilities normally carried by a licensed builder.
And one of the most important things to understand is that there is no single Australian owner-builder system.
Every state and territory has its own rules covering permits or licences, training, eligibility, project value thresholds, building approvals, safety obligations and restrictions on how often you can owner-build.
This guide provides a current overview of the owner-builder requirements across Australia as at October 2026.
Important: Owner-builder legislation and regulator requirements change. Always confirm the requirements for your individual project with the relevant state or territory regulator before starting work.
What Is an Owner Builder?
An owner builder is generally a property owner who takes responsibility for managing or carrying out building work on their own property rather than engaging a registered builder to take overall responsibility for the project.
Depending on the jurisdiction and project, an owner builder may be responsible for things such as:
obtaining the required approvals, permits or licences
engaging appropriately licensed trades
coordinating construction work
complying with approved plans and building requirements
arranging required inspections
managing site safety and applicable WHS obligations
maintaining contracts, certificates and project records
rectifying defective or non-compliant work.
An owner-builder permit or licence does not normally give you the right to carry out specialist licensed work, such as electrical, plumbing or gasfitting, unless you separately hold the relevant occupational licence.
Owner builder requirements around Australia
State/Territory | Permit Threshold | Education/Training | Key Regulator |
NSW | Work over $10,000 requiring DA/CDC | White Card; approved owner-builder education if work is over $20,000 | Building Commission NSW |
VIC | Domestic building work over $20,000 | BPC eLearning assessment + construction induction training | Building and Plumbing Commission (BPC) |
QLD | Work over $11,000 incl. GST | Approved owner-builder course; asbestos awareness may also be required | |
WA | Class 1a $20,000, Class 10a threshold $50,000 | WA owner-builder training/recognised experience + White Card | LGIRS |
ACT | No simple dollar threshold — licence relates to work under a specific Building Approval | Recognised ACT owner-builder course completed within 5 years, unless another recognised qualification pathway applies | |
NT | Prescribed residential work over $25,000 | Read Owner Builder Manual and complete declaration | Building Practitioners Board |
TAS | Depends on classification and approval pathway | Class 1a: owner-builder course + White Card + public liability insurance | |
SA | No equivalent single owner-builder dollar permit threshold | No general mandatory owner-builder course identified; building and development approval requirements still apply |
State-by-State Breakdown
New South Wales:
NSW has one of Australia's clearest dollar-based owner-builder systems.
You generally need an owner-builder permit if you want to supervise or carry out residential building work valued at more than $10,000, where the work requires development consent or a complying development certificate and you are not engaging a licensed builder to supervise the project. NSW Government
If the reasonable market cost of the work exceeds $20,000, you must also satisfy the approved owner-builder education requirements.
The current NSW education requirement comprises five units of competency covering WHS, plans and specifications, estimating, work planning and workplace communication. Applicants must also hold a current general construction induction card — commonly known as a White Card. NSW Government
Key NSW requirements
Owner-builder permit generally required for work over $10,000
Approved owner-builder education required if work exceeds $20,000
Current White Card required
Usually limited to one owner-builder permit within a five-year period, subject to exceptions
Work must relate to an eligible residential property and approved DA or CDC
Specialist licensed work must still be carried out by appropriately licensed trades.
An owner-builder permit is not a general builder licence. It only applies to the project covered by the relevant approval.
Victoria:
Victoria's owner-builder system is administered by the Building and Plumbing Commission (BPC).
As at October 2026, if you intend to undertake domestic building work as an owner builder and the value of the work is more than $20,000, you generally need an Owner-Builder Certificate of Consent from the BPC. Building and Plumbing Commission
This is important because older information online may still refer to a $16,000 threshold.
The main applicant must successfully complete the BPC's owner-builder eLearning assessment. Construction induction training is also required for owner-builder projects, with evidence of a current White Card submitted as part of the application where required. Building and Plumbing Commission
Key Victorian requirements
Certificate of Consent generally required for domestic building work over $20,000
Complete the BPC owner-builder eLearning assessment
Complete construction induction training / hold the required White Card
Work must generally relate to a single domestic dwelling in which you live or intend to live
Generally limited to one owner-builder home in a five-year period, subject to exceptions
Some work — including demolition and certain specialist work — must be undertaken by appropriately registered practitioners. Building and Plumbing Commission
If an owner-built property is sold within the prescribed period, additional inspection and insurance requirements can also apply.
Queensland:
Queensland owner builders are regulated by the Queensland Building and Construction Commission (QBCC).
An Owner-Builder Permit is generally required if you want to undertake or supervise building work valued at more than $11,000 including GST. A higher threshold of $27,500 applies to certain farm building work. QBCC
At least one applicant must usually complete an approved owner-builder course unless an exemption applies.
The course certificate must generally have been completed within the previous five years.
Asbestos awareness
Queensland may require asbestos awareness training where there is a chance you will be working with or around asbestos.
Owner Builder Institute provides a 100% online Asbestos Awareness course designed to help owner builders understand asbestos risks and how to work safely around asbestos-containing materials.
Key Queensland requirements
Permit threshold: more than $11,000 including GST
Owner-builder course usually required unless exempt
Course must generally be no more than five years old
Additional asbestos awareness training may be required depending on the project
Owner Builder Institute provides online Asbestos Awareness training for owner builders who want to better understand asbestos risks before renovating or building
Generally restricted from obtaining another owner-builder permit within six years, subject to exemptions
Owner-builders cannot access the Queensland Home Warranty Scheme for their own owner-builder work
Western Australia:
Western Australia requires owner-builder approval before you can apply for the relevant building permit where the owner-builder regime applies.
For most owner-builder projects, the threshold is more than $20,000. For certain Class 10a buildings, such as sheds, carports and private garages, the threshold is more than $50,000.
To be approved as an owner builder in WA, you must be able to demonstrate that you understand your responsibilities, including managing trades, building approvals, safety, contracts, inspections and compliance.
One way to meet this requirement is by completing an approved owner-builder course.
WA Owner Builder Course
Owner Builder Institute provides a 100% online WA Owner Builder Course designed specifically for Western Australian owner builders.
The course is self-paced, practical and focused on the information you need before applying for owner-builder approval.
Start the WA Owner Builder Course
Key WA requirements
Owner-builder approval generally required for work over $20,000
Class 10a threshold generally more than $50,000
Complete approved owner-builder training or meet an accepted experience/qualification pathway
White Card required for the relevant applicant
Must generally intend to live in or personally use the property
Usually limited to one owner-builder building permit within six years, unless a waiver is granted
Owner-builder approval must be obtained before applying to the local government for the building permit
For most people without an existing recognised building qualification, completing the WA Owner Builder Course is the simplest pathway to demonstrating the required knowledge.
Key WA requirements
General threshold: more than $20,000
Class 10a threshold: more than $50,000
WA-specific owner-builder training or recognised experience/registration pathway
White Card required for the relevant applicant
Must generally intend to occupy or personally use the property
Generally only one owner-builder building permit within six years, unless a waiver applies
Approval must be obtained before applying to the local government for the building permit.
Australian Capital Territory:
In the ACT, owner-builder licensing is linked to the building work and Building Approval for the project rather than a simple dollar threshold.
Applicants must meet the current Access Canberra eligibility requirements and complete a recognised owner-builder course, unless another accepted qualification pathway applies.
Owner Builder Institute is currently working through the ACT approval process for its online ACT Owner Builder Course.
Key ACT requirements
Owner-builder licence relates to a specific Building Approval
Applicant must meet current Access Canberra eligibility requirements
Recognised owner-builder education is required unless another accepted pathway applies
Specialist licensed work must still be carried out by appropriately licensed practitioners
Always check the latest ACT Government requirements before applying
Tasmania:
Tasmania uses a risk-based building approval framework, but there are still specific owner-builder requirements.
For Class 1a residential owner-builder work, current CBOS application material requires:
completion of an approved owner-builder course within 12 months before applying
a White Card
public liability insurance with at least $5 million cover. CBOS
Owner builders are generally limited to two Class 1a owner-builder projects within a ten-year period. CBOS
The owner must generally engage a building surveyor and obtain the appropriate Certificate of Likely Compliance and building permit where required.
The owner builder must also notify the building surveyor at the mandatory notification stages identified for the project. CBOS
Smaller low-risk structures may fall outside the owner-builder permit regime, depending on their classification and size.
South Australia:
South Australia does not operate the same kind of simple owner-builder dollar-threshold permit system used in states such as NSW, Queensland or WA.
An owner builder takes responsibility for organising and managing their own building project, while development and building consent requirements continue to apply through the South Australian planning system.
PlanSA's current building-consent system specifically recognises Owner Builder status for Class 1 and Class 10 building work. PlanSA
Owner builders do not need formal trade qualifications simply because they are owner builders, although specialist work such as electrical, plumbing and gasfitting must still be performed by appropriately licensed people. SAFA
There is also an important distinction around Building Indemnity Insurance.
A genuine owner builder cannot take out Building Indemnity Insurance for their own owner-builder work. However, where an owner builder contracts a licensed builder to perform applicable work valued at $20,000 or more, that builder may be required to provide a written contract and Building Indemnity Insurance for their contracted work.
Northern Territory:
As at October 2026, you generally need an Owner-Builder Certificate where prescribed residential building work is valued at more than $25,000. NT Government
Eligible work includes construction or extension of certain Class 1a dwellings and associated prescribed structures.
Key NT requirements
Owner-builder certificate threshold: over $25,000
Applicant must be an individual property owner
Companies and other entities are generally not eligible
Read the NT Owner Builder Manual
Sign the declaration confirming it has been read
Certificate relates to one block of land
Generally only one owner-builder certificate at a time
A six-year restriction applies before another property can generally be undertaken
A building permit is still required after receiving the owner-builder certificate
Residential building insurance/fidelity cover requirements also apply before building work begins. NT Government
NT WorkSafe should also be consulted about construction-site safety and White Card obligations.
Final Notes for Owner Builders
There is no single Australian owner-builder licence or course.
NSW, Victoria, Queensland, Western Australia, the ACT, Northern Territory, Tasmania and South Australia each take a different approach to owner-builder eligibility, training and approvals.
The safest approach is simple:
Check the rules for your jurisdiction, complete any required education before applying, engage appropriately licensed trades, and make sure your approvals and safety systems are in place before construction begins.
Owner Builder Institute provides owner-builder education and practical resources designed to help Australians better understand the responsibilities involved in managing their own building project.
Comments