Quick answer
Possibly. Using licensed or registered tradespeople does not automatically remove owner-builder obligations. A homeowner can be an owner-builder without doing any of the physical work, particularly where they organise and manage the project.
But not every renovation is owner-builder work for Section 137B, and not every use of a trade contractor triggers a defects report. The actual work, contracts, responsibilities, completion date and law must be reviewed.
1. “All the trades were licensed. Why is my conveyancer asking about a 137B report?”
Take a hypothetical homeowner who renovated a bathroom and kitchen before selling. They engaged a licensed plumber, a licensed electrician, a waterproofer, a tiler and a carpenter. Every contractor invoiced the homeowner directly.
The seller tells their conveyancer: “I didn’t build anything myself. All the trades were licensed. Why would I need an owner-builder report?”
It is a fair question, but it mixes up the credentials of each tradesperson with who was responsible for the project as a whole.
Consumer Affairs Victoria says you are an owner-builder if you intend to use your own skills to build, extend or renovate your home, or if you manage sub-contractors to do the work. That does not mean every coordinated refurbishment triggers a Section 137B report. It means the conveyancer needs to establish what work was done and who was responsible before deciding the sale obligations.
2. Licensed tradesperson vs registered builder vs owner-builder
These are not interchangeable.
| Role | Typical involvement | What it does not prove on its own |
|---|---|---|
| Licensed or registered trade practitioner | Carries out a specific trade, such as plumbing or electrical work, under the licensing rules | That they took responsibility for the whole renovation |
| Registered domestic builder engaged for the project | Contracts to deliver the building work, coordinates subcontractors and is responsible under the contract | That every permit or certificate was completed correctly |
| Owner-builder | A property owner who does or manages building work on their own property | That the owner personally built, installed or waterproofed anything |
The key distinction is not whether the trades were competent. It is who contracted for, managed and took responsibility for the work, together with how the law classifies that work.
3. Three common arrangements
Scenario A: the owner hires and coordinates several trades
The owner chooses each trade, agrees prices, schedules the work, manages the sequence and pays each contractor separately. This can be owner-builder work even if everyone on site is properly licensed. Whether Section 137B applies still depends on the work and the sale.
Scenario B: a registered builder contracts to deliver the whole renovation
The owner signs with a registered domestic builder, who engages and manages the subcontractors. The contract, registration, insurance, permits and scope help establish who was responsible. Do not assume a report is required, or definitely unnecessary, until the documents have been checked.
Scenario C: minor stand-alone trade work
The owner engages an electrician for a repair, a painter to redecorate or a plumber for a routine replacement. Engaging a licensed trade for isolated work does not automatically make the seller an owner-builder with a Section 137B obligation. The nature of the work matters.
These scenarios are illustrations, not legal rulings.
4. Do trade certificates exempt the seller from Section 137B?
Not necessarily. A plumbing compliance certificate or electrical safety certificate is an important record of specific regulated work. But it is not:
- a building permit, where one was required;
- an Occupancy Permit or Certificate of Final Inspection;
- a building contract showing who the responsible builder was;
- a Section 137B defects inspection report; or
- any required domestic building insurance or Home Warranty document.
Each document does a different job, and a conveyancer may need several kinds of evidence to understand the approval and sale position.
5. What if no building permit was required?
A permit exemption does not settle the owner-builder question. Equally, the lack of a permit does not mean one should have been obtained. Replacing kitchen cupboards is very different from altering a load-bearing wall or building a new ensuite.
If a permit was required but never obtained, a Section 137B inspection cannot retrospectively legalise the work. More: Section 137B and renovations without a building permit and Owner-builder work without permits or certificates.
6. What should sellers gather before listing?
The quickest way to resolve uncertainty is to document what happened, rather than relying on “licensed trades did all the work”. Gather, where available:
- A room-by-room and exterior list of renovations and additions.
- Approximate start and completion dates for each project.
- Contracts, quotes, invoices and receipts identifying each contractor.
- Registration or licence details for the work done.
- Building permits and drawings, if any.
- The Occupancy Permit or Certificate of Final Inspection, if issued.
- Plumbing, electrical, glazing or other trade certificates.
- Builder, domestic building insurance or Home Warranty records.
- Who coordinated the trades and who was responsible under each contract.
If documents are missing, say so rather than assuming they never existed. Some can be recovered from contractors, the building surveyor or the council.
7. Conveyancer checklist: “licensed trades did everything”
Separate facts about the work from legal consequences for the sale.
| Question | Why it matters |
|---|---|
| What exact renovations were completed? | Different work can have different approval, disclosure and report consequences |
| Who signed the contracts? | Identifies the responsible contracting parties |
| Was one registered builder responsible for the whole project? | Separates a builder-managed project from owner-coordinated trades |
| Was there a building permit? | Shows permit and nominated-builder details where relevant |
| Were final inspection or occupancy documents issued? | Helps with compliance history and with working out the period |
| Were trade certificates issued? | Supports specific components, not the whole project |
| When was the work completed? | The sale obligations are time-limited |
| What was the value and scope? | Relevant to some consent and insurance thresholds, not to whether a report is needed |
| Is a defects report required on these facts? | Needs the current law applied, not a blanket assumption |
A 137B inspection is a technical reporting service, not a legal classification service. More for practitioners: Section 137B for solicitors and conveyancers.
8. What about renovations over $16,000 or $20,000?
Neither figure is a Section 137B exemption. Official pages use money figures for particular obligations such as the owner-builder certificate of consent, written building contracts and insurance, and the current pages do not all use the same figures. Victoria also introduced Home Warranty changes from 1 July 2026.
Consumer Affairs Victoria says the defects report applies to owner-builder work regardless of value. The price of the renovation alone cannot tell you whether a 137B report is required.
9. What if the seller is already under contract?
If the question comes up after the contract is signed, the conveyancer needs to assess the contract, disclosure history and obligations urgently. A report prepared after signing does not automatically cure an earlier omission. Equally, the fact that several licensed trades worked at the property does not by itself prove a breach. See Missing Section 137B report after signing a contract.
10. How a Section 137B inspector can help
Owner Builder Inspection Melbourne carries out Section 137B owner-builder defects inspections across Melbourne. When instructed, we assess the visible and accessible parts of the relevant work and document the defects and observable non-compliance we identify, within the inspection limits.
We help sellers and conveyancers set the practical inspection scope. We do not give retrospective building approval, certify concealed work, give legal opinions, or decide whether insurance must be bought.
Not sure where to start? Enter the property address and the list of renovations online; the same scope flows into the quote.
The legal decision stays with the seller’s conveyancer or solicitor.
Frequently asked questions
I hired licensed plumbers and electricians. Am I still an owner-builder?
Possibly. Consumer Affairs Victoria says you are an owner-builder if you manage sub-contractors to do the work, not only if you build it yourself. Whether a Section 137B report is needed then depends on the work, the contracts, the dates and the sale.
If I did none of the physical work, do I still need a 137B report?
You may. Doing the work with your own hands is not the only way to be an owner-builder. Not every renovation triggers a report, though; the facts must be reviewed.
Is hiring a registered domestic builder different from hiring separate trades?
Yes, potentially. A registered builder contracted to deliver and manage the whole project has a different role from separate trades hired directly by the owner. Check who signed the contracts and who took responsibility.
Are plumbing and electrical certificates enough for a property sale?
They are useful records for specific trade work, but they do not replace a building permit, a final inspection document, a required 137B report or insurance documents.
Does every bathroom or kitchen renovation require a 137B report?
No. The room alone does not decide it. Consider the specific alterations, who was responsible, the timing and the law.
What if the owner was named on the building permit as the owner-builder?
That is an important document for the conveyancer, but the sale obligation still depends on the statutory criteria, the dates and the work.
Can a Section 137B report retrospectively approve renovation work?
No. A defects report is not a retrospective building permit or Certificate of Final Inspection. Approval issues may need a building surveyor.
Can I organise a report before my conveyancer finishes reviewing the documents?
You can get the inspection scoped and quoted, but confirm the purpose and scope with your conveyancer before treating a report as meeting any sale obligation.
Sources (checked 10 October 2026): Consumer Affairs Victoria — Owner builders, Consumer Affairs Victoria — Owner builders checklist, Building and Plumbing Commission — Selling an owner-built home and Building Act 1993 (Vic), s 137B. Diagram: original illustration.
General information for Victoria only, not legal, insurance or certification advice. Your conveyancer or solicitor should confirm the requirements for your renovation and sale. This guide does not mean that every trade-contractor renovation needs a Section 137B report. Last reviewed: 10 October 2026.