If you are planning to manage your own build, the first thing to understand is that there is no single national owner-builder system. Every state and territory regulates it separately, under its own legislation, through its own authority — and they do not even call it the same thing. What New South Wales calls an owner-builder permit, Victoria calls a certificate of consent, Western Australia calls an approval, the Northern Territory calls a certificate, and the ACT treats as a licence. South Australia does not issue one at all.
Owner-builder requirements differ by state and territory. The thresholds differ, the training differs, the waiting periods between projects differ, and whether you have to live in the finished dwelling differs. This guide sets out what each jurisdiction actually requires, using that jurisdiction’s own terminology, with each entry sourced separately.
All of it is current as at publication and general in nature. Building regulation changes regularly — always confirm the position with the relevant authority before you rely on it.
What it’s called, and when you need one
| Jurisdiction | What it is called | Broadly when it applies | Who issues it |
|---|---|---|---|
| NSW | Owner-Builder Permit | Residential building work valued over $10,000 where development consent is required | Building Commission NSW, applications via Service NSW |
| VIC | Certificate of consent | Domestic building work over $20,000 | Building and Plumbing Commission |
| QLD | Owner-builder permit | Building work valued more than $11,000 ($27,500 for farm buildings) | QBCC |
| WA | Owner-builder approval | Work over $20,000 where a building permit is required; $50,000 for Class 10a sheds, carports and garages | Building Services Board, via LGIRS |
| SA | No owner-builder permit exists | Owner-builders are regulated through contracting and insurance rules instead | Consumer and Business Services |
| TAS | Owner Builder Permit | Residential building work; a licensed building surveyor must be engaged first | CBOS, Department of Justice |
| ACT | Owner-builder licence | Building work on land you lease, where building approval is required | Construction and Workplace Licensing, EPSDD |
| NT | Owner builder certificate | Building or extending a home with work valued over $25,000 | Building Practitioners Board |
Six different names, six different thresholds and one jurisdiction with no permit system at all. That is the single most important thing to carry into the detail below.
New South Wales — Owner-Builder Permit
NSW requires an owner-builder permit where the reasonable market cost of the work, including both labour and materials, is valued over $10,000 and the work requires development consent. The permit is applied for through Service NSW and assessed by Building Commission NSW.
The work must relate to a single dwelling-house, a dual occupancy or a secondary dwelling. Permits are not issued for properties in a multi-dwelling strata complex or for commercial property.
To be eligible you must be at least 18, hold a current general construction induction card (white card), and be the owner or joint owner of the land — or a shareholder in the company that owns it, or hold a minimum three-year lease registered with NSW Land Registry Services. You must intend to live in the property once the work is finished, and you must already have an approved development application or complying development certificate.
The education requirement is tied to a second, higher threshold: you must have completed the approved owner-builder education requirements, or hold equivalent accreditation, if the cost of the building work is $20,000 or more. So NSW has two numbers doing two different jobs — $10,000 decides whether you need a permit, $20,000 decides whether you need the course.
If you have held an owner-builder permit within the last five years, or the work is a dual occupancy, you must additionally show evidence of special circumstances. Each application is considered on its merits and will be refused if special circumstances are not demonstrated.
Source: Service NSW, “Apply for an Owner-Builder Permit”, last published 14 September 2026.
Victoria — certificate of consent
Victoria does not issue a permit. It issues a certificate of consent, and the requirements sit in section 25E of the Building Act 1993.
It is worth noting who issues it, because this changed: the Victorian Building Authority now trades as the Building and Plumbing Commission, and the old VBA web address redirects to the Commission’s site. Guidance that still refers to “the VBA” is describing the same body under its former name.
A certificate of consent is needed where the value of the domestic building work is over $20,000. It is not needed if the total cost of work is $20,000 or less, if the work is not domestic building work, if a registered building practitioner is nominated on the building permit as responsible, or if the work is being done under an emergency order, building notice or building order.
To be eligible you must own the land — or be a director of the company, or beneficiary of the trust, that owns it. The work must relate to, or be ancillary to, a single domestic dwelling. You must reside or intend to reside in the dwelling, unless it is a small second dwelling. You must not be in the “business of building”. You must have completed the owner-builder eLearning assessment and undertaken construction induction training for the project.
Victoria’s repeat-project rule is a five-year one: you cannot have been issued a building permit as an owner-builder in the previous five years for a different property, unless it is a small second dwelling. An exemption can be requested where there are special circumstances, such as economic hardship resulting from refusal.
Victoria is also unusually specific about scope. Ancillary buildings and structures are acceptable owner-builder projects — garages, carports, sheds, bushfire shelters, pools, spas, fences, pergolas and retaining walls. But owner-builders cannot carry out demolition work, subfloor work such as re-stumping or re-blocking, or relocate a home. That work must be done by registered building practitioners.
Source: Building and Plumbing Commission, “Owner-builder eligibility”, last updated 30 June 2026.
Queensland — owner-builder permit
Queensland sets the lowest headline threshold of the mainland states that use one. You need an owner-builder permit to undertake or supervise a building project valued at more than $11,000. Farm buildings have their own, higher figure: you can build, renovate or alter farm buildings up to a value of $27,500 without a permit, and above that you need to engage a licensed contractor.
Most people must complete an owner-builder course before applying. QBCC or interstate licensees and some professionals are exempt — a current QBCC licensee simply includes their licence number on the application form.
Queensland’s repeat-project rule is six years: QBCC will generally only issue one permit every six years, though exemptions are sometimes granted. You also cannot apply if you or any applicant has had an owner-builder permit cancelled by QBCC in the last three years.
Two Queensland-specific consequences are worth knowing before you apply. First, a notification of the owner-builder permit attaches to the title of the property. Second, if you sell within six years of the completion date you must tell the prospective buyer in writing; you can apply to have the owner-builder administrative advice removed from the title six years after the work is completed, with the completion date being when your certifier signs off the final documents. QBCC also maintains a public online register of owner-builder permit holders, searchable by name or address.
Source: QBCC, “About owner-building” and “Apply for an Owner-builder permit”, accessed 18 September 2026.
Western Australia — owner-builder approval
WA issues an owner-builder approval, granted by the Building Services Board and administered by the Department of Local Government, Industry Regulation and Safety. The approval must be obtained before you apply to your local government for a building permit.
WA runs two thresholds by building class. An approval (or a registered building contractor) is needed where a building permit is required and the estimated value of the work exceeds $20,000 — but for Class 10a buildings, which includes sheds, carports and private garages, the threshold is $50,000. You cannot split one job into separate projects each valued below the threshold to avoid licensing.
The applicant must be an individual — not a company, trust or other entity — and must be an owner of the land. To demonstrate sufficient knowledge of an owner-builder’s duties, at least one applicant must hold a construction induction training card (white or blue card) and either hold current or previous WA building practitioner registration, be registered in WA as an architect, building surveyor or building engineer, or have completed owner-builder training with Western Australian specific content within the previous 24 months. That currency requirement is particular to WA.
WA’s repeat-project rule is six years, running from the date a building permit was granted rather than from the approval. It can be waived where hardship would result from refusal, or where the new permit is for the same land.
Two timing points matter. Approvals typically take around six to eight weeks to process, and fees are not refundable. Once granted, an owner-builder approval expires six months after issue if no building permit application has been made.
WA also has a distinctive scope: as well as detached houses and Class 10 buildings, owner-builder approvals extend to small commercial buildings, limited to two storeys and 500 square metres of floor area. And selling an owner-built dwelling within seven years of the building permit being granted is an offence unless home indemnity insurance is in place.
Source: wa.gov.au, “Owner-builder approval”, last updated 16 September 2026.
South Australia — no owner-builder permit
South Australia is the exception, and it catches people out. There is no owner-builder permit or licence to apply for. Owner-builders are regulated through contracting and insurance rules rather than through an approval.
Being an owner-builder in SA does not require formal trade qualifications, unless you are performing specialist work such as plumbing, gas fitting or electrical work, which must be done by appropriately licensed people. Licensed builders can be contracted to do some or all stages.
Where it gets consequential is insurance. If you contract out any building work costing $20,000 or more, your tradesperson must have a written contract with you, and if council approval is required for the project they must also take out building indemnity insurance. That insurance can only be taken out by a person, business or company holding a builder’s licence — which means owner-builders cannot take out building indemnity insurance themselves. For anyone planning to sell later, that is the detail with the longest tail.
SA also draws a firm line against using the owner-builder route as a business. A person cannot act as an owner-builder to build multiple properties as a business without being licensed, and anyone who sells or rents two or more buildings within five years that they have built or improved is considered to be a building work contractor unless they can prove otherwise — requiring a builder’s licence and building indemnity insurance.
Consumer and Business Services also warns that if a builder asks you to put yourself down as an owner-builder while they run the project, you should contact CBS for advice, because such arrangements are often illegal and expose you to significant risk. That warning is not unique to SA in substance, but SA states it plainly.
Source: South Australian Government Financing Authority, “Building Indemnity Insurance — Owner Builders”, modified 21 August 2026.
Tasmania — Owner Builder Permit
Tasmania issues an Owner Builder Permit through Consumer, Building and Occupational Services, approved by the Administrator of Occupational Licensing. A permit will only be issued for work on a residential building — a detached dwelling or a conjoined unit — and will not be issued for any work on commercial buildings.
Tasmania has a sequencing requirement the other jurisdictions do not: you must have engaged a licensed building surveyor before you can apply for the permit. The surveyor issues a Certificate of Likely Compliance, and you then apply for a building permit.
The repeat-project rule is expressed differently again — only two owner builder Class 1a projects are allowed in a ten-year period, and those two projects can include two entirely new dwellings. Owner-builders also cannot keep performing more work on what they have already constructed; each new building project requires a new Owner Builder Permit, and there is a fee for each one. CBOS notes that the fee and insurance requirements for owner-builders are the same as for a licensed builder.
Tasmania also differs on occupancy in a way worth noting if you are weighing jurisdictions: owner builders in Tasmania do not have to live in the residence. Licensed builders can also apply for an Owner Builder Permit.
On farm structures, Class 7b farm sheds do not require an Owner Builder Permit, although if the structure is over 200 square metres a building surveyor must be engaged and a Certificate of Likely Compliance issued. Some smaller sheds and outbuildings classified as low risk do not require owner builder registration at all. The Building Act 2016 sets out what a homeowner can build without a permit.
Source: CBOS, “Owner builder — restrictions, home projects and farmers”, accessed 18 September 2026.
Australian Capital Territory — owner-builder licence
The ACT treats owner-building as a licence rather than a permit or certificate, issued under the Construction Occupations (Licensing) Act 2004 and administered by Construction and Workplace Licensing within the Environment, Planning and Sustainable Development Directorate.
You need the licence if you are an individual intending to build or renovate on land you own, and it extends to the construction of ancillary structures such as pergolas, carports and decks.
To be eligible you must have completed an owner-builder course within the last five years, or hold an active class A, B or C builder licence in the ACT. Because the ACT is a leasehold jurisdiction, you must be the lessee for the block being developed, and where the block is co-leased you need the approval of the co-lessees. The building work must be your main home or ancillary to it.
The licence runs for up to three years.
Source: ABLIS (Australian Business Licence and Information Service), “Owner Builder Licence — ACT”, accessed 18 September 2026; Construction Occupations (Licensing) Act 2004.
Northern Territory — owner builder certificate
The NT issues an owner builder certificate through the Building Practitioners Board, required where you are building or extending your home with work valued over $25,000 — the highest headline threshold in the country.
It covers a single dwelling or detached house (class 1a); a garage, carport or shed attached to and built at the same time as an attached single dwelling (class 10); an unattached retaining wall supporting a class 1a or class 2 building; and extensions to any of those where you are increasing floor space. The construction, extension or renovation of duplexes, townhouses, flats or units cannot be done by an owner builder.
Only individual property owners can apply — a company or trust is not eligible — and if you are registered as a residential building contractor you do not need to apply at all.
The certificate is issued for one block of land for three years and can be renewed for a further three. It is not a building permit, and you can only hold one certificate at a time. All individuals on the property title must be included. If you want to apply for another property, you must wait six years from the issue of your previous certificate.
Before applying you must read the Building Practitioners Board’s owner builder manual and complete the declaration at the end of it. After the certificate is issued you still need a building permit to start construction — and before that, you must have residential building insurance in the form of a fidelity fund certificate.
The NT sets out the legal responsibilities plainly, including rectifying defective work for up to six years if you sell the property, and notes that engaging a project manager does not remove any of them.
Source: nt.gov.au, “Get an owner builder certificate”, modified 13 May 2026; Building Practitioners Board.
What is consistent across Australia
Despite the variation, a few principles hold everywhere:
- Licensed trades still have to be licensed. No owner-builder approval in any jurisdiction lets you do your own electrical, plumbing or gas work.
- You take on a builder’s responsibilities. Every jurisdiction makes the owner-builder responsible for compliance, site safety, supervising workmanship and rectifying defects — and several state explicitly that engaging a project manager does not shift those responsibilities.
- Selling later is where it bites. Every jurisdiction attaches some consequence to selling an owner-built home within a defined period, whether through insurance requirements, disclosure obligations or a notation on title.
- Repeat projects are restricted. The period differs — five years, six years, two projects in ten — but every jurisdiction that issues an approval limits how often you can get one.
- Be wary of being asked to be the owner-builder for someone else’s benefit. If a builder suggests you register as the owner-builder while they manage the project, that is a warning sign, and more than one regulator says so directly.
Getting the approval is one step — funding the build is another
An owner-builder approval tells the regulator you can manage the project. It does not tell a lender anything about how the build will be funded, and owner-builder finance is assessed quite differently from a standard construction loan.
We have covered that side in full — how lenders approach owner-builder projects, how funds are released, and what to have ready — in owner-builder loans and finance in Australia. That is the page to read once you know which approval applies to you.
Insurance sits alongside both, and varies by state in its own right: see owner-builder insurance.
If you want the broader mechanics of staged construction funding, how construction loans work and land and construction loans cover the ground.
Owner-builder approval FAQs
Is there one national owner-builder permit in Australia?
No. Each state and territory regulates owner-building separately, under its own legislation and its own authority, and uses its own terminology — permit, certificate of consent, approval, certificate or licence. An approval from one jurisdiction does not carry to another.
Which state has the lowest threshold before you need an approval?
Of the jurisdictions that use a headline value threshold, New South Wales is lowest at building work valued over $10,000, followed by Queensland at more than $11,000. Victoria and Western Australia sit at over $20,000, and the Northern Territory at over $25,000. South Australia does not issue an owner-builder approval at all.
Do I need to do a course to be an owner-builder?
It depends on where you are building, and in NSW it also depends on the value of the work. NSW requires approved education where the cost of the work is $20,000 or more; Victoria requires an eLearning assessment and construction induction training; Queensland requires a course unless you are exempt; WA requires either building practitioner registration or owner-builder training with WA-specific content completed within the previous 24 months; the ACT requires a course within the last five years. Check the requirement for your jurisdiction rather than assuming.
How long do I have to wait before I can be an owner-builder again?
The restriction exists nearly everywhere but is expressed differently. Victoria and NSW work on a five-year basis, Queensland, WA and the NT on six years, and Tasmania limits owner-builders to two Class 1a projects in a ten-year period. Exemptions or waivers are available in several jurisdictions in defined circumstances.
Do I have to live in the home I build as an owner-builder?
Usually, but not always. NSW, Victoria, Queensland, WA, the ACT and the NT all tie owner-builder status to occupying or intending to occupy the property in some form. Tasmania is the notable exception — CBOS states that owner builders do not have to live in their residence.
Can a company or trust apply to be an owner-builder?
Generally no. WA and the NT both state that the applicant must be an individual and that a company or trust is not eligible, and Tasmania excludes companies, trusts and self-managed superannuation funds. Victoria takes a different approach, allowing a director of a company or beneficiary of a trust that owns the land to apply in their own capacity.
What happens if I sell an owner-built home?
Every jurisdiction attaches consequences, and they differ. Queensland notes the permit against the property title and requires written disclosure to a buyer within six years of completion. WA makes it an offence to sell within seven years of the building permit unless home indemnity insurance is in place. The NT holds owner-builders responsible for rectifying defective work for up to six years if the property is sold. In SA, the fact that owner-builders cannot take out building indemnity insurance is itself the constraint. Check your jurisdiction before you plan a sale.
Planning an owner-builder project?
Once you know which approval applies in your state or territory, the next question is usually how the build gets funded — and that is where we can help. Tell us what you are planning and where, and we will talk you through how owner-builder finance is assessed and what lenders will want to see.
Start an application · Talk to Little Home Loans · 1300 391 390
Sources
Every figure and requirement above was taken from the relevant regulator or government source, read on 18 September 2026:
- NSW — Service NSW, Apply for an Owner-Builder Permit (page states last published 14 September 2026); assessed by Building Commission NSW.
- VIC — Building and Plumbing Commission, Owner-builder eligibility (last updated 30 June 2026); Building Act 1993 s25E.
- QLD — Queensland Building and Construction Commission, About owner-building and Apply for an Owner-builder permit.
- WA — Government of Western Australia, Owner-builder approval (last updated 16 September 2026); Department of Local Government, Industry Regulation and Safety.
- SA — South Australian Government Financing Authority, Building Indemnity Insurance — Owner Builders (modified 21 August 2026); Consumer and Business Services.
- TAS — Consumer, Building and Occupational Services, Owner builder — restrictions, home projects and farmers; Building Act 2016.
- ACT — Australian Business Licence and Information Service, Owner Builder Licence — ACT; Construction Occupations (Licensing) Act 2004.
- NT — Northern Territory Government, Get an owner builder certificate (modified 13 May 2026); Building Practitioners Board.
Written and reviewed by the Finance Director at Little Home Loans.
This article is general information only, current as at 18 September 2026. Owner-builder requirements, thresholds, training obligations and fees are set by each state and territory and change from time to time. Nothing here is legal, building or financial advice, and it is not a substitute for checking the current requirements with the relevant authority in your jurisdiction before you apply or commit to a project. All finance is subject to lender approval. Consider whether any finance is appropriate for your circumstances.
