How to Read Your Building Inspection Report (Before Contracts Become Binding)

If you've never had a pre-purchase building inspection before, the report can be a lot to take in. Photos of every corner of the roof space, a subfloor crawl, notes on the fence, the hot water unit, the shower recess. It's thorough because it has to be. Our reports follow AS 4349.1-2007, the Australian Standard for pre-purchase building inspections, and AS 4349.3-2010 for timber pest inspections. But the standard also gives us a defect rating system, and once you understand that system, the report stops being a wall of text and starts being a decision-making tool.

We write these reports for people who are about to spend a lot of money on a property, often with a finance clock ticking and a due diligence period that isn't as long as they'd like. So here's how to actually read what we've given you.

The Four Ratings Every Report Uses

Every finding in a Littlefire report gets sorted into one of four categories. Once you know what each one means, you can skim a fifty-page report and go straight to what matters.

Serious Safety Hazard

This is the top of the list: any item that may pose an immediate or imminent risk to life, health or property. Think an exposed live wire in a roof space, a balustrade that isn't fixed properly on a second-storey balcony, or a set of stairs with no handrail. If we've flagged something as a Serious Safety Hazard, it needs attention before anyone spends more time in that part of the house, let alone moves in.

Major Defect

A Major Defect is a defect of significant magnitude: something that has to be fixed to avoid unsafe conditions, a loss of the use of the property, or further deterioration if it's left alone. This is usually the category buyers care most about, because it's often the one with real cost attached. An active leak at a shower base picked up on the moisture meter is a good example. We see this in a handful of inspections, usually traced back to a failing waterproofing membrane or a leaking pipe behind the wall.

Minor Defect

Everything that isn't a Major Defect but is still worth knowing about. Degraded sealant around a bathroom, a cracked path, a dripping tap washer. On their own, none of these should stop a purchase. But if a report comes back with page after page of minor defects, that tells you something about how the property has been maintained overall.

For Your Information

Not a defect at all, just something we think you should know. A photo of the meter box, a note about the type of roofing, a comment about access limitations. Useful context, not a red flag.

Why the Same Problem Sometimes Appears Twice in One Report

This trips people up, so it's worth explaining properly. You'll sometimes see, say, degraded shower sealant listed as a Minor Defect in the Property section, and then see it again in the Timber Pest section, described as a "condition conducive to timber pest attack."

That's not a duplication error. It's because most defects that let moisture into a building create two separate problems at once. The Property section is assessing the building: is the water going to damage the tiles, the substrate, the frame? The Timber Pest section, assessed under AS 4349.3, is asking a different question: does this create the damp, hidden conditions that termites and fungal decay need to get established? Moisture is the common thread. A leaking shower, a bridged damp-proof course, rotten timber trim: all of these show up in both sections because they're doing double duty as a building risk and a pest risk. If you see the same issue mentioned twice, that's usually a sign it's worth taking seriously, not a typo.

The Undetected Defect Risk Rating and Why It Matters

Alongside the defect list, we also give an Undetected Defect Risk Assessment: low, moderate or high. This isn't about the condition of the house. It's about how much of the house we could actually get to. A subfloor packed with stored belongings, a locked roof manhole, furniture against every wall: all of these limit what an inspector can physically see and touch on the day. A high undetected defect risk rating doesn't mean something's wrong. It means there's a part of the property we couldn't properly assess, and you should factor that uncertainty into your decision.

"Fair Condition for Its Age": What That Line Actually Tells You

You'll see this phrase a lot in our reports: "the dwelling was found to be in fair condition for its age." It's not a brush-off. It's a genuinely useful summary line, because it puts everything else in context. A weatherboard cottage from the 1920s and a brick veneer from the 1980s are not held to the same standard. Both can be in fair condition for their age and still carry a list of defects that would be unusual in a house built five years ago. Read the defect list alongside this line, not instead of it.

What to Do With Your Report Before You Sign

Every recommendation in our reports names a specific trade: a licensed plumber, a structural engineer, a sealant specialist, a pest technician, a licensed electrician. That's deliberate. It gives you a next step, not just a warning.

If your report flags a Major Defect or a Serious Safety Hazard, get the relevant trade to quote on it before contracts become binding. That's the point in the process where you still have leverage: to negotiate on price, ask the vendor to fix it, or walk away. Once you've settled, that leverage is gone and the repair bill is entirely yours.

Book Your Building Inspection With Littlefire

We've inspected hundreds of properties across bayside and greater Melbourne, and we write our reports so you can actually use them under pressure, during a short settlement window, with money on the line. If you're bidding at auction or making an offer subject to inspection, get in touch through www.littlefire.com.au for a fast, plain-English building and pest inspection before contracts become binding.