If you are a first home buyer in Perth, a building inspection is one of the most important steps between signing a contract and settling on your home. It is an independent assessment by a registered builder of the property’s condition, and it tells you what you are really buying before your money is committed. This guide walks you through what a pre-purchase building inspection is, when to book it, what it covers, and what it costs, in plain language.
| First home buyer building inspection at a glance |
Usually carried out after you sign the contract, but before settlement. |
Independent: the inspector works for you, not the seller or the agent. |
Conducted by a registered builder under AS4349.1, with a same-day digital report. |
Pre-purchase building inspection: $595 to $895. Combined building and pest: $790 to $1,090. |
Catching a major defect early can save far more than the inspection costs. |
Why first home buyers need a building inspection
Buying your first home is exciting, and it is easy to focus on the kitchen and the location rather than the condition of the structure. A building inspection exists to balance that out. It gives you an independent, written assessment of the property’s condition so you are making your decision on facts, not on a hopeful walkthrough. For a first home buyer, that protection matters most, because the deposit and the loan represent a large share of your savings.
The inspector works for you. They are not connected to the seller or the agent, and their job is to document the condition of the home honestly, including the things that did not make the listing photos.
When should you book a building inspection?
In Western Australia, a pre-purchase building inspection is usually carried out after you sign the contract, but before settlement. Many first home buyers make their offer conditional on a building inspection, and often a timber pest inspection as well. That condition is usually framed around the inspection finding no major structural defects, rather than a general impression of the property, and your settlement agent or conveyancer can help you word it correctly. Inspection lead times can be up to a week, so it pays to start thinking about your inspection as soon as you make an offer and to book promptly once the contract is signed. We never frame the inspection as something done before signing, because that is not how the WA process works.
What does a building inspection cover?
A thorough pre-purchase building inspection with Bestwest Building covers all visible and accessible building elements, inside and out:
- Roof exterior and roof space, including coverings, flashings, framing, and insulation where accessible.
- External and internal walls, windows, and doors, including cracking and movement.
- Ceilings and floors, including signs of water damage or unevenness.
- Wet areas: bathrooms, ensuite, and laundry, with moisture testing to walls behind showers where accessible.
- Subfloor and crawl space areas where accessible, and the immediate site and surrounds.
It does not include testing of drainage systems (gutters and roof drainage are visually assessed only), pools and pool equipment, appliances, or asbestos testing. Suspected asbestos materials are noted for specialist assessment.
Building inspection or building and pest inspection?
For an established home, a combined building and pest inspection is the most comprehensive option and the one we strongly recommend. It brings a building inspection and a timber pest assessment together in a single visit, so you understand both the structural condition and any timber pest activity before you commit. Termites are a genuine risk across Perth, and they are not part of a building inspection on their own.
What if you are building, not buying?
If you are a first home buyer who has built under a building contract rather than buying an established home, the inspection you need is different. A practical completion inspection is carried out on your newly completed home at the end of the building contract, before handover. Your builder typically notifies you about two weeks before the proposed handover date, and works to a 10 business day rectification window, during which defects identified should be rectified by the builder before you take the keys. And if your build is still underway, or has not started yet, construction progress inspections can check the work at each key stage along the way, with the practical completion inspection at the end.
Common mistakes first home buyers make
A few avoidable missteps come up again and again:
- Skipping the inspection to save a few hundred dollars on the largest purchase of their life.
- Relying on the agent’s reassurance or a quick personal walkthrough instead of an independent report.
- Choosing the cheapest inspection without checking it is carried out by a registered builder, which matters in WA where there is no licensing requirement for inspectors.
- Leaving the booking so late that there is no time to act on the findings before settlement.
- Not checking whether the contract restricts which inspector you can use. You are entitled to choose your own qualified, independent inspector, and a clause limiting that choice is worth questioning.
Avoiding these is straightforward: book an independent inspection by a registered builder early in the window between signing and settlement, read the report in full, and make use of the inspector consultation that comes with it.
How much does a building inspection cost in Perth?
For a standard property in our usual operating area, a pre-purchase building inspection is $595 to $895, and a combined building and pest inspection is $790 to $1,090. Price varies with the size, location, and complexity of the property. Set against the cost of a major undetected defect, an inspection is a small and sensible investment. Get an instant personalised quote at bestwestbuilding.com.au.
Defects first home buyers are often surprised by
Some of the most common findings catch first home buyers off guard, because they are not visible on a casual walkthrough or in the listing photos. A few that come up regularly across Perth:
- Roof issues out of sight from the ground, such as cracked or slipped tiles, deteriorated pointing, and inadequate flashings around penetrations.
- Moisture behind showers and around wet areas, picked up with a moisture meter where the walls are accessible.
- Cracking and movement in walls that signals more than cosmetic wear.
- Subfloor moisture or poor ventilation in homes with a suspended floor, which can affect long-term structural health.
- Additions and alterations that are not well integrated, with the reminder that inspectors do not confirm council approvals, so further enquiries with the local government may be needed.
None of these means a home is a bad buy. The point of the report is to put the facts in front of you, so you can decide with confidence, negotiate where it is warranted, or simply plan the maintenance ahead.
Questions worth asking your inspector
Because your inspector is available to discuss the report with you, it is worth coming prepared. A few useful questions:
- Which of the flagged items should I prioritise, and which can wait?
- Is anything a safety issue I should treat as urgent?
- What needs further investigation by a specialist, and what kind of specialist?
- For the things you found, what does addressing them realistically involve?
Asking these turns a written report into a clear plan, which is exactly what you want as you head toward settlement on your first home.
Reading your report and next steps
You receive a same-day digital report with full-resolution photographs, sorted into major defects, minor defects and maintenance items, safety issues, and areas needing further investigation. Your inspector is available to discuss the report with you, so you can talk through anything you are unsure about. For a full walkthrough, see our guide on how to read a building inspection report, and you can view a sample report before you book to see exactly what to expect.
We inspect homes right across Perth and the South West. That includes south corridor suburbs like Baldivis, Byford, and Piara Waters, and areas further out such as Mandurah, Bunbury, and Busselton, so wherever you are buying your first home, you can have the same independent assessment behind your decision.
Get a free instant quote at bestwestbuilding.com.au or call us on (08) 9444 9562.
Frequently Asked Questions About Building Inspections for First Home Buyers in Perth
Do first home buyers really need a building inspection?
It is strongly recommended. A building inspection gives you an independent assessment of condition before settlement, which protects what is usually a large share of your savings against an expensive surprise.
When do I book the inspection?
Usually after you sign the contract, but before settlement. Settlement in WA is often around 30 days, and because inspection lead times can be up to a week, we suggest booking within about 7 days of signing to give ample time to act on the report.
What is the difference between a building inspection and a building and pest inspection?
A building inspection assesses the structure and condition. A combined building and pest inspection adds a timber pest assessment in the same visit, which we strongly recommend for established homes.
How much does it cost?
A pre-purchase building inspection is $595 to $895, and a combined building and pest inspection is $790 to $1,090 for a standard property in our usual operating area. Get an instant personalised quote at bestwestbuilding.com.au.
