A building and pest inspection is a visual, non-invasive check of a home's accessible areas that reports major defects, safety hazards and timber pest activity before you commit to buy. The building half is done to Australian Standard AS 4349.1-2007 and the pest half to AS 4349.3-2010, both still the current editions and both flagged by Standards Australia as pending revision. In 2026 a combined inspection on a standard three-bedroom house in Sydney, Melbourne or Brisbane is advertised at roughly $500 to $750.
What it leaves out matters as much. The standard lets the inspector skip electrical wiring, concealed plumbing, gas, pools, insulation and the presence of asbestos, and anything behind stored boxes, a locked door or a roof hatch too small to fit through is simply recorded as not inspected. Queensland requires pre-purchase inspectors to hold a specific licence; NSW and Tasmania do not.
What does a building and pest inspection cover?
The building inspection (AS 4349.1)
The standard's purpose is narrow: identify major defects and form an opinion on the general condition of the property on the day. Where they exist, the inspector looks at the interior, the roof space, the exterior, the subfloor, the roof exterior and the site within 30 metres of the building. The report must locate and describe each major defect, give a general impression of the extent of minor defects, flag anything that may be a serious safety hazard, list what could not be inspected and why, and recommend specialists where needed.
The pest inspection (AS 4349.3)
The timber pest standard covers subterranean and dampwood termites, borers of seasoned timber and wood decay fungi; drywood termites are outside its scope. The NSW Government makes the key point plainly: a building report should pick up visible termite damage, but it will not tell you whether termites are still there. That is the pest inspector's job, which is why the two are usually sold together.
What "visual, non-invasive" means in practice
AS 4349.1 defines an inspection as careful scrutiny carried out without dismantling anything. Reasonable access to a roof space means a hatch of at least 400 by 500 millimetres reachable from a 3.6 metre ladder, with 600 by 600 millimetres of crawl space. The inspector will not cut access holes or undo screws on covers, and is not required to look under floor coverings, behind furniture or through stored goods. A fully furnished house with a packed garage gets a thinner report than an empty one, through no fault of the inspector.
What a building inspection does not cover
The standard's list of items the inspector need not report on includes:
- footings below ground, concealed damp-proofing and soil conditions
- electrical installations and smoke alarms, gas, air conditioning and concealed plumbing
- swimming pools, fireplaces and chimneys
- framing sizes, concealed tie-downs and bracing, and insulation
- health hazards, including the presence of asbestos.
That last item catches people. The Asbestos and Silica Safety and Eradication Agency says homes built before 1990 can contain asbestos inside and out, that you usually cannot tell by looking, and that pre-purchase building reports generally do not cover it. If you plan to renovate an older house, a separate asbestos assessment is the only way to know. South Australia's guidance adds a practical step: get a written quote that lists what the inspector will check, because not all of them look at air conditioners, plumbing or electrical work. And flood exposure is a separate check entirely; our flood risk guide covers it.
Building and pest inspection cost in 2026
These are published price ranges for a combined inspection, not an independent survey, so use them as a budget guide and get two quotes.
| City | Apartment or unit | Standard 3-bed house | Large or older house | Source |
|---|---|---|---|---|
| Sydney | $419 to $550 | $500 to $650 | $525 to $730 (4-bed); $650+ (5-bed) | Rapid Building Inspections, August 2026 |
| Melbourne | $450 to $600 | $550 to $750 | $650 to $850 (large); $700 to $900+ (older) | Rapid Building Inspections, August 2026 |
| Brisbane | $475 to $600 | $550 to $750 | $650 to $850 (large); $750 to $900+ (older character) | Rapid Building Inspections, August 2026 |
| Perth | $300 to $600 (building only) | $450 to $900 | $700 to $1,400 (large, heritage or inner-city) | What's The Damage?, October 2026 |
A spot check of single providers' list prices on 7 September 2026 by the guide site Homechecker found $655 including GST in Sydney and $500 plus GST in Melbourne and Brisbane. Extras such as thermal imaging cost more; the Perth guide puts specialist add-ons at $150 to $600 each.
Two jurisdictions change the maths. In the ACT the seller must attach a building and compliance inspection report, and a pest report for an occupied home, to the contract, each done no more than three months before the property was first advertised. You reimburse the seller for the first report at settlement, and if it was false or prepared without reasonable skill and care, you can claim compensation for your loss. In NSW, agents must record any pre-purchase reports they know about, including whether each is available to buy, and disclose that record when you ask for a copy of the contract. Ask before you book your own.
Who can do a building and pest inspection?
| State | Building inspector | Pest inspector |
|---|---|---|
| QLD | QBCC completed residential building inspection licence, reporting to AS 4349.1 | QBCC termite management (chemical) licence, which also requires a Queensland Health pest management licence |
| NSW | No specific licence; guidance says use a licensed builder, surveyor or architect with professional indemnity insurance | No EPA licence needed to inspect only; one is needed to apply pesticides |
| VIC | Guidance says a qualified building inspector, surveyor or architect; check the Building and Plumbing Commission register | Recommended, no licensing rule stated |
| WA | Guidance says a building inspector, surveyor or architect with full professional indemnity insurance | Should be done to AS 4349.3 |
| SA | Guidance says a surveyor, architect or building consultant; a structural engineer for structural soundness | Guidance says a licensed pest inspector |
| TAS | No building services provider licence required | Not specified |
| ACT | Seller supplies the report with the contract | Seller supplies the report for an occupied home |
How to read a building and pest report
Under AS 4349.1, a major defect is one serious enough that it has to be fixed to avoid unsafe conditions, loss of use or further deterioration. A minor defect is everything else, and the inspector only has to describe their overall extent, not list each one. Any observed item that may be a present or imminent serious safety hazard must be identified, and the standard treats a safety hazard as a major defect.
Then read the sections people skip:
- Limitations and "access restricted" areas. The report must name every area it could not inspect and why: an enclosed patio, a slab floor, a double brick cavity, a low-pitched roof space. Each one is an unanswered question, not a pass. Ask the seller for access and pay for a return visit.
- Recommendations for further inspection. A referral to an electrician, plumber, structural engineer or geotechnical engineer means the inspector saw enough to worry.
- The overall conclusion. It rates the incidence of defects against reasonably maintained buildings of about the same age, so "above average" in a 1920s weatherboard means something different from the same words on a 2015 brick veneer.
- Cost. The standard does not require the inspector to estimate repair costs, and says any estimate should be treated as a guide only. Get quotes.
Finally, ring the inspector. Ten minutes on the phone about the two items that worry you is worth more than the summary page.
Red flags in a building and pest report
| Finding | What it can mean | What to do |
|---|---|---|
| Live termites or termite damage | Structural timber may be weakened; home insurance typically excludes termite damage | Get a treatment quote and a builder's view on repairs, and price both into your offer |
| Moisture, damp or leaks | Failed waterproofing, drainage or plumbing; wet timber invites decay | Have the source identified and quoted by a plumber or waterproofer |
| Cracking | Under AS 4349.1 a crack can be cosmetic, a serviceability problem (sticking doors, water getting in) or structural | Get a structural engineer for anything the inspector rates as structural |
| Possible asbestos in a pre-1990 home | Only a laboratory test confirms it | Commission an asbestos assessment before renovation plans and budget for licensed removal |
| Unapproved or non-compliant work | An extension, deck or conversion without approvals | Check council approval records; Tasmania's 337 certificate shows whether completion certificates were issued |
| Safety hazard | A present or imminent serious risk | Have it fixed before you move in, and negotiate who pays |
Unapproved work is a Queensland blind spot in particular: the seller disclosure statement does not have to cover structural soundness or previous building approvals, so the report and a council search are your evidence.
What to do with a bad building and pest report
- Separate the deal-breakers from the noise. Major defects, safety hazards and big access limitations first; minor defects are normal in most homes.
- Get quotes, not guesses. Two trade quotes beat any figure in the report.
- Renegotiate. South Australia's guidance says you can use the report to negotiate the price and the contract conditions.
- Or ask for repairs, in writing, with a pre-settlement inspection to confirm the work was done. WA's regulator is explicit that agreements with the seller should be in writing.
- Or walk away inside your window. That means the cooling-off period, which our state-by-state cooling-off guide sets out, or your building inspection condition, which you end by written notice on the terms the condition sets.
Say you are under contract on a $780,000 1970s house in Brisbane with a building and pest condition, and the $650 inspection finds termite damage to two subfloor bearers plus an old shower leak. Say the quotes come back at $4,500 for treatment and $9,000 for timber and waterproofing repairs. You can ask the seller to fix it, ask for $13,500 off, or end the contract under the condition and lose only the $650. Any of the three beats discovering the bearers after settlement.
Check that condition's wording before you sign. South Australia's guidance warns that standard subject-to-inspection clauses usually only give you rights if major structural defects are found, so negotiate rights over minor defects if they matter to you. Buying a new or near-new home brings builder risk as well, which our builder insolvency guide covers.
Apartments versus houses
On a strata or company title unit, AS 4349.1 limits the inspection to the interior and immediate exterior of the unit itself, and the inspector does not review the owners corporation's records. The standard notes that strata records only disclose defects formally raised with the owners corporation, while your share of repair costs covers the whole common property. So a unit inspection is worth less on its own; pair it with a strata report, and for NSW, read our guide to the 2026 NSW strata reforms.
In NSW, newer apartment buildings that fall outside home building compensation insurance come with a defects bond. The developer lodges 2% of the contract price before the occupation certificate, an independent inspector reports 15 to 18 months after completion and again at 21 to 24 months, and the bond can be used to fix defects those inspections identify. A planned rise to 3% has been deferred to 1 July 2028. Buying into a building in that window, ask for both reports.
On a house, the expensive surprises usually sit in the subfloor and the roof space, so access to both matters.
Building and pest inspections before an auction
There is no cooling-off at auction, and South Australia's guidance confirms a winning bidder cannot make the contract subject to an inspection report. So the inspection has to be done, and read, before auction day; our auction playbook covers the rest of that homework. Ask the agent first whether reports already exist, and book early, because a report that arrives the night before the auction leaves no time to ring the inspector. Budget for repeats: if you bid at three auctions before you win, you may pay for three inspections.
Frequently asked questions
How much does a building and pest inspection cost in 2026?
For a standard three-bedroom house, published 2026 ranges run $500 to $650 in Sydney and $550 to $750 in Melbourne and Brisbane. Apartments start around $420 to $475 in those cities, and older or larger homes can exceed $900. Perth ranges from $450 to $900 for a standard house.
What does a building inspection not cover?
Under AS 4349.1 the inspector need not report on electrical, gas, concealed plumbing, pools, insulation, framing sizes or health hazards such as asbestos, and timber pest activity belongs to the separate pest inspection. Areas without safe, reasonable access are excluded and listed in the report as limitations.
Can I pull out if the building and pest inspection is bad?
Yes, if you are still inside the cooling-off period or the contract has a building and pest condition you can rely on. After that, or after an auction, a bad report gives you no exit, which is why the inspection should come first.
Do building inspectors need a licence?
In Queensland, yes: a QBCC licence for building inspections and a QBCC termite licence backed by a Queensland Health licence for pest work. NSW has no specific licence and Tasmania does not require a building services provider licence, so check insurance and qualifications instead.
Book it before you sign
Book the inspection before you exchange or bid, and ask three things when you do: does the report follow AS 4349.1 and AS 4349.3, does the inspector carry professional indemnity insurance, and in Queensland, what is the licence number. Be there for the last half hour if you can. Add the report to the rest of your due diligence with our property buying checklist, and decide what you would do with a bad result before it arrives.
This is general information, not legal, financial or building advice. Get advice on your contract from a solicitor or conveyancer, and on specific defects from a qualified builder or engineer.
Sources
- Standards Australia, "AS 4349.1-2007 Inspection of buildings, Part 1: Pre-purchase inspections, Residential buildings", including clauses 1.4, 2.3, 3.2 and 4.2 and Appendices B, D and E; store listing accessed 6 October 2026.
- Standards Australia, "AS 4349.3-2010 Inspection of buildings, Part 3: Timber pest inspections", store listing accessed 6 October 2026.
- Bestwest Building, "Scope of pest inspection and report". Accessed 6 October 2026.
- NSW Government, "Pre-purchase inspection reports when buying a home". Accessed 6 October 2026.
- NSW Government, "Pre-purchase inspection reports" (agent record-keeping and disclosure). Accessed 6 October 2026.
- Parliament of NSW, Question 7477, "Pre-purchase inspections". Answered 7 October 2021.
- NSW Environment Protection Authority, "Pest management technicians, fumigators and training permits". Accessed 6 October 2026.
- Queensland Building and Construction Commission, "Completed residential building inspection" and "Termite management, chemical" licence pages. Updated 31 August 2021.
- Queensland Government, "Seller disclosure scheme". Updated 21 July 2025.
- Consumer Affairs Victoria, "Inspect properties before you buy". Updated 22 April 2026.
- Consumer Protection WA, "Property inspections". Updated 25 November 2024.
- SA.GOV.AU, "Inspecting a property" and "Offers, auctions and buying off the plan". Accessed 6 October 2026.
- Consumer Affairs and Fair Trading Tasmania, "Advice when buying or selling property". Updated 20 July 2026.
- ACT Legislation Register, "Civil Law (Sale of Residential Property) Act 2003", sections 9, 18 and 19, republication effective 1 November 2025.
- Asbestos and Silica Safety and Eradication Agency, "The home". Accessed 6 October 2026.
- NSW Government, "Strata Building Bond and Inspections Scheme". Updated 29 June 2026.
- Building Commission NSW, "Update on amendments to building regulations". 26 June 2026.
- Rapid Building Inspections, building and pest inspection cost guides for Sydney, Melbourne and Brisbane, 2026. 12 August 2026.
- What's The Damage?, "Building inspector cost Perth 2026". Updated October 2026.
- Homechecker, "Building and pest inspection cost in Australia: 2026 examples". Reviewed 7 September 2026.
- Finder, "Does home insurance cover termite damage?". Updated 20 March 2024.
