WA Owner‑Builder: Can You Sell Within 7 Years?

If you have built or renovated as an owner-builder in Western Australia, sooner or later you will ask: “Can I sell within seven years of my building permit?” The short answer is yes — but only if you meet strict home indemnity insurance rules designed to protect future buyers.

This guide explains the seven-year rule in plain English, what insurance you must arrange, and the practical steps to take before you list your owner-built home.

The seven-year rule for WA owner-builders

In WA, the key dates and thresholds are tied to your building permit and the value of your residential work.

• The “clock” starts on the date your building permit is granted, not when you finish construction.

• If the value of your owner-builder work is over $20,000, you are legally responsible for defects for seven years from that permit date.

• If you sell the home within that seven-year window, you must obtain home indemnity insurance (HII) and provide the certificate to the buyer.

So you can sell within seven years — but the sale triggers extra insurance and documentation requirements, not a blanket prohibition.

What is home indemnity insurance (HII) for owner-builders?

Home indemnity insurance protects the purchaser if serious defects emerge and the builder or owner-builder cannot or does not fix them — because they die, disappear or become insolvent.

For owner-builders in WA:

• HII is mandatory if you sell a home within seven years of the building permit and the building work was valued above $20,000.

• The policy covers major structural defects for the remainder of the seven-year period from the permit date, protecting your buyer and any subsequent purchaser.

• The insurance certificate must be attached to the contract or given to the buyer before settlement, not after the sale has gone through.

Without HII, the buyer has far less protection if something goes wrong with your owner-built work.

Are you allowed to sell within 7 years?

Yes — you are legally allowed to sell an owner-built home in WA within seven years, provided you obtain compliant home indemnity insurance and give the certificate to the purchaser.

Think of it this way:

• Under WA law, the duty to obtain HII sits with the person selling a home built by a registered builder or an owner-builder, where the work exceeded $20,000.

• The seven-year rule simply sets the timeframe during which that protection must be in place.

So the key question is not “Can I sell?”, but “Have I arranged the right insurance before I sell?”

What happens if you sell without home indemnity insurance?

Selling without home indemnity insurance can create a “fine mess” for owner-builders.

Consequences can include:

• Fines of up to $10,000 for failing to comply with the HII requirement.

• Delays or complications in settlement if the buyer or their conveyancer discovers the missing insurance.

• The buyer can void the contract at any time before settlement if the mandatory insurance was not provided.

Recent enforcement statements from WA’s Building Commissioner have specifically reminded owner-builders to obtain HII when selling within seven years, highlighting several cases where failing to do so proved costly. In one case, the magistrate noted the penalty should be more than the cost of purchasing HII — so offenders do not benefit financially by skipping the insurance.

Does the rule apply if you don’t sell?

If you keep living in the home and do not sell within seven years of the building permit date:

• You do not need to obtain home indemnity insurance for your own benefit.

• You still carry responsibility for defects during this period, but there is no purchaser to protect, so the HII trigger never activates.

The insurance requirement only comes into play when you transfer the property to someone else.

Practical checklist before you sell an owner-built home in WA

Before you call the agent or sign a contract:

1. Confirm your building permit date and work value. Check the original building permit paperwork to confirm the issue date and declared value of the owner-builder work.

2. Work out where you sit in the seven-year window. Count seven years forward from the permit date and see whether your proposed sale falls inside that period.

3. Arrange a defects or condition report. Insurers and buyers often expect a realistic assessment of the home’s condition before issuing cover or making an offer.

4. Apply for home indemnity insurance with a suitable provider. Be prepared to provide plans, approvals and evidence of the completed work to support the HII application.

5. Provide the HII certificate to your buyer. Ensure the certificate is attached to the contract or otherwise provided before settlement — keep copies in your own records.

Treat this checklist as part of your normal pre-sale preparation, just like staging, valuations and conveyancing.

How the WA Owner-Builder course prepares you for selling

Our WA Owner-Builder course goes beyond getting Form 75 approval — it covers the full lifecycle of your legal responsibilities, including what happens when you eventually sell.

You learn how to:

• Document your project clearly so insurers can assess HII applications efficiently

• Understand the seven-year defect period and how it interacts with contracts and consumer protections

• Avoid common missteps that have led other owner-builders into fines or prolonged disputes when selling

If you are planning to become an owner-builder — or already have approval and want to future-proof your project — the course gives you the clarity you need to manage both the build and any later sale with confidence. View our new WA Owner Builder Course and information here: Owner Builder Course WA | Owner Builder Institute

Frequently asked questions

What’s the difference between home indemnity insurance and my normal home insurance?

Home indemnity insurance protects the purchaser against major defects if the owner-builder dies, disappears or becomes insolvent and cannot meet their obligations. Standard home insurance (building and contents) covers events like fire, storm or theft — it does not replace the statutory defect protection required when selling owner-built work in WA.

How long does a WA owner-builder permit last?

Owner-builder approval (Form 75) is only the first step — you must apply for a building permit from your local government within six months, or the approval expires. Once the building permit is granted, your owner-builder approval remains valid for the duration of the permit. Building permits are valid for two years, though you can request a longer period when applying or ask your local government to extend an existing permit.

How long do my defect responsibilities last as an owner-builder?

For residential building work valued over $20,000, an owner-builder is responsible for defects for seven years from the date the building permit was issued. This is the same seven-year window in which home indemnity insurance must protect any purchaser if you sell.

Do I need home indemnity insurance if I don’t sell?

No. If you keep the home and do not sell within seven years of the building permit date, you are not required to take out home indemnity insurance on your own owner-built work. The requirement is only triggered if you sell within that window and the work was valued above $20,000.

What happens if I sell without home indemnity insurance?

Selling an owner-built home within seven years without home indemnity insurance can result in fines of up to $10,000, and the buyer can void the contract at any time before settlement. WA’s Building Commissioner has specifically warned owner-builders about these risks and urged them to obtain HII before listing or settling a sale.