Buying a home in Western Australia can move quickly. You find the property, attend the home open, make an offer and suddenly there are contract dates, finance requirements and settlement deadlines to manage.
So, when should you book a building inspection in WA?
For a private-treaty purchase, the best timing depends on your Offer and Acceptance (O&A) and any building or timber-pest inspection conditions included in it. If your accepted offer contains an inspection condition, arrange the inspection as early as practical after acceptance so there is enough time for access, inspection, reporting and any next steps required under your contract.
In some situations, buyers may choose to arrange an inspection before making an offer. If you’re buying at auction, inspecting before auction becomes particularly important because auction purchases generally cannot be made subject to building or pest inspection conditions.
Here’s how building inspections fit into the WA buying process.
Where Does a Building Inspection Fit Into the WA Buying Process?
For many private property sales in Western Australia, the process looks broadly like this:
Find a property → Review the property → Prepare your offer → Consider inspection conditions → Submit O&A → Offer accepted → Complete required inspections → Address conditions → Pre-settlement inspection → Settlement
The exact process can differ depending on your contract, finance, property and method of sale.
Most importantly, don’t confuse a pre-purchase building inspection with a pre-settlement inspection. They serve different purposes.
WA Consumer Protection explains that most WA property transactions use the O&A together with the Joint Form of General Conditions. Special conditions can deal with matters such as building, plumbing or termite inspections.
Should You Get a Building Inspection Before Making an Offer?
You can.
A building inspection before making an offer may suit a buyer who wants more information about the property’s accessible condition before deciding how to proceed.
This approach can be useful when:
- You already have significant concerns about the property
- The home is older or extensively renovated
- Visible cracking, staining or deterioration concerns you
- You’re considering an unconditional offer
- You’re preparing to bid at auction
- You want inspection information before committing to a price
The trade-off is that you may pay for an inspection without ultimately purchasing the property.
For private sales, another approach is to negotiate an appropriate inspection condition as part of your offer.
The correct approach depends on your circumstances and proposed contract terms.
When Should You Book After Your Offer Is Accepted?
If your O&A contains an inspection condition, don’t wait until the deadline is approaching.
Once acceptance has been communicated, the signed O&A becomes a binding contract, subject to its terms and conditions. WA Consumer Protection says special conditions should clearly identify what must happen, by when, who is responsible and what the consequences are if the requirement isn’t completed.
Practically, early booking gives time for:
Property access — the inspector needs to coordinate access with the relevant party.
The inspection — sufficient time is needed to assess the property within the booked scope.
Report preparation — you need the findings before the relevant contractual deadline, not afterwards.
Questions and further assessment — a report may identify an issue that warrants clarification or specialist assessment.
Contractual next steps — what happens following a particular finding depends on the wording of your O&A.
For Perth buyers, the safer practical habit is therefore:
Read the inspection condition first. Note the deadline. Then arrange the inspection promptly.
What Is an O&A in Western Australia?
The Offer and Acceptance form, commonly called the O&A, is central to many WA property purchases.
Together with the Joint Form of General Conditions for the Sale of Land, it forms the standard contract used for many Western Australian real-estate transactions.
An O&A can contain details such as:
- Purchase price
- Deposit
- Settlement date
- Finance arrangements
- Special conditions
- Building inspection conditions
- Timber pest inspection conditions
- Other agreed requirements
This is why generic advice such as “you have X days after your offer is accepted to get an inspection” can be misleading.
Your actual timeframe should come from your contract.
If you’re preparing to make an offer, our guide to What Every Perth Home Buyer Must Know Before Signing a Contract provides additional buying-stage context.
Why Does the Wording of the Building Inspection Condition Matter?
Because simply writing “subject to building inspection” may not clearly establish everything you expect it to.
WA Consumer Protection recommends precise wording for special conditions. At a minimum, a condition should make clear what must be done, the timeframe, responsibility for arranging or paying for it, and the consequences if it isn’t completed as required.
A building inspection report may identify:
- Cracking
- Structural concerns
- Moisture-related observations
- Roof-space defects
- External deterioration
- Drainage concerns
- Other significant accessible defects
But discovering an issue doesn’t automatically mean you can cancel the purchase, demand repairs or reduce the price.
Your options depend on the wording of your contract and relevant special conditions. WA Consumer Protection similarly notes that the way inspection-report issues can be dealt with is governed by the special conditions included in the O&A.
If you’re unsure about a condition’s legal effect, seek advice from an appropriately qualified legal or settlement professional before relying on it.
Should You Book Building and Pest Inspections Together?
For an established property, it is worth considering whether you need both.
A building inspection assesses relevant accessible building elements within its scope.
A timber pest inspection looks for matters such as current timber pest activity, previous damage and relevant conditions associated with future risk.
WA Consumer Protection advises established-home buyers to consider obtaining a timber pest inspection report and states that pest inspections should be undertaken to the applicable timber-pest inspection/reporting standard.
StructSure offers:
- Building Only — $299
- Standard Building + Pest — $499
- Premium Building + Pest — $699
If you’re unsure how the two inspection types differ, read What Is a Building and Pest Inspection?.
For timber-pest-specific information, see our Termite Inspection Checklist or Termite & Pest Inspection Perth service.
How Early Should You Contact the Building Inspector?
You don’t necessarily need to wait until the last possible moment—or even until acceptance—to speak with an inspector.
If you’re serious about a property, you can contact the inspection company early to understand:
- Current availability
- Inspection packages
- What each package covers
- Expected report turnaround
- Property access requirements
- Whether building and pest can be completed together
- Whether additional inspection tools are available
Then, once your contractual position and inspection requirement are clear, the booking can move quickly.
This is particularly useful in an active Perth property market where your O&A may give you a defined timeframe to satisfy an inspection condition.
What If the Property Is Being Sold “As Is”?
Pay particular attention to the contract.
WA Consumer Protection describes an “as is” sale as one where the property is sold in the condition viewed by the buyer and the seller does not agree to meet additional special conditions such as building and pest inspections.
That doesn’t make understanding the property’s condition unimportant.
In fact, you may want more information before committing, depending on the sale circumstances.
StructSure has a dedicated guide on Buying an “As Is” Property in Perth that explores this situation in more detail.
When Should You Get a Building Inspection Before an Auction?
Before you bid.
This is one of the biggest timing differences WA buyers need to understand.
WA Consumer Protection’s auction guidance says that, unlike a private-treaty offer where special conditions may be negotiated, an auction bid cannot be made subject to conditions such as a building inspection or termite inspection.
If you’re seriously considering bidding, arranging your due diligence beforehand can therefore be particularly important.
That may include:
- Reviewing the auction contract
- Obtaining appropriate legal advice
- Checking finance arrangements
- Researching the property
- Arranging building inspection
- Considering timber pest inspection
- Reviewing the inspection findings before bidding
Don’t assume you’ll be able to win the auction and then add an inspection condition afterwards.
What Happens After the Building Inspection?
Once the inspection is completed, read the report carefully rather than jumping straight to the final summary.
A report may identify minor maintenance items, significant defects or areas where further specialist assessment is recommended.
Pay attention to:
- Significant findings
- Photographic evidence
- Areas that couldn’t be accessed
- Recommended further investigation
- Structural observations
- Moisture-related findings
- Timber pest findings if included
If you’re unsure about a finding, discuss it with your inspector.
Then consider the report in the context of your O&A and obtain appropriate contractual advice where necessary.
Our guide to Negotiating After a Building Inspection explains what buyers should consider when using inspection findings during a property purchase.
What If the Inspector Finds a Structural Problem?
Don’t assume every crack means structural failure.
Visible cracking can vary considerably in significance depending on its location, pattern and surrounding conditions.
An engineer-led inspection can help put visible observations into context and identify when further investigation may be appropriate.
For more information, read Structural Faults in Perth Homes: A Guide for Buyers and Inspectors.
We also address a very specific buyer concern in Is a 5mm Wall Crack a Major Structural Defect in a Perth House?.
What you can do contractually following a structural finding is a separate question and depends on your O&A.
Is the Building Inspection the Same as the Pre-Settlement Inspection?
No.
This distinction is important.
A pre-purchase building inspection is a professional assessment of the accessible condition of the property within the agreed inspection scope.
A pre-settlement inspection is a later check before settlement. WA Consumer Protection describes it as the buyer’s final inspection to make sure the property is in the expected condition before the transaction is finalised.
You shouldn’t wait until the pre-settlement inspection and assume it replaces earlier building due diligence.
Consumer Protection has specifically warned that discovering faults only at the final inspection can create problems late in the transaction.
Perth Buyer’s Building Inspection Timeline
Here’s a simple way to think about the process.
Before Making an Offer
Research the property, attend the home open and identify concerns.
Decide whether you want an inspection before making an offer or whether an appropriate inspection condition should form part of your O&A.
For an auction, arrange relevant inspection due diligence before bidding.
When Preparing the O&A
Understand exactly what any proposed building or timber pest inspection condition says.
Don’t rely on vague wording if the outcome of the inspection matters to your purchase.
After Your Offer Is Accepted
If an inspection is required under the contract, note the deadline and book promptly.
Provide the inspector with relevant property and access information.
After the Inspection
Read the report, ask questions and arrange any recommended specialist assessment where appropriate.
Consider the findings against the actual terms of your O&A.
Before Settlement
Complete the appropriate pre-settlement inspection.
Check the property’s condition and any matters required under your contract before settlement is finalised.
What Should You Have Ready When Booking?
A few details can make the booking process smoother:
Property address — so the inspector knows exactly what property is being assessed.
Property type — house, townhouse, unit or other residential property.
Relevant deadline — particularly where your O&A includes an inspection timeframe.
Inspection package — Building Only or Building + Pest.
Specific concerns — for example visible cracking, ceiling staining or a particular wet area.
Access information — where known.
If you’re unsure which inspection scope you need, read 10 Questions to Ask Before Booking a Building and Pest Inspection.
Frequently Asked Questions
When should I book a building inspection in WA?
If your accepted O&A contains an inspection condition, arrange the inspection promptly and early enough to comply with the timeframe stated in your contract. Buyers can also choose to inspect before making an offer.
Should I get a building inspection before or after making an offer?
Both approaches are possible in a private sale. The right approach depends on your buying strategy and contract. If inspecting after acceptance, make sure your O&A appropriately addresses the inspection if you intend to rely on its findings contractually.
Can I put a building inspection condition in an offer in WA?
WA Consumer Protection states that building and termite inspections can be addressed through special conditions in an O&A. Conditions should be clearly and precisely drafted.
Is there a cooling-off period after buying a house in WA?
There is no mandatory cooling-off period for real-estate contracts in Western Australia. This makes understanding the O&A and completing appropriate due diligence particularly important.
Should I get a building inspection before a Perth property auction?
If you want the property inspected, arrange it before bidding. WA auction purchases generally cannot be made subject to building or termite inspection conditions.
How quickly should I book after my offer is accepted?
Check your O&A immediately. If it contains an inspection deadline, arrange the inspection as early as practical rather than assuming a standard number of days applies to every WA purchase.
Should I book a pest inspection at the same time?
For an established home, consider whether you also need a timber pest inspection. StructSure’s Standard and Premium Building + Pest packages combine the two assessments.
Is a pre-settlement inspection the same as a building inspection?
No. A pre-settlement inspection is a later check of the property before settlement; it does not replace a professional pre-purchase building inspection.
Book a Pre-Purchase Building Inspection in Perth
The best time to think about a building inspection isn’t the day before your deadline.
Understand your O&A, know what inspection scope you need and arrange the inspection early enough to give yourself time to understand the findings.
StructSure provides engineer-led Pre-Purchase Building Inspections Perth with clear photographic reporting and Building + Pest options.
- Building Only — $299
- Standard Building + Pest — $499
- Premium Building + Pest — $699
Call StructSure: +61 422 370 505
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