A building inspection report is easy to open and surprisingly easy to misread. Most Australian reports written to AS 4349.1 follow a familiar shape: a summary, a list of major defects and safety hazards, a room-by-room or element-by-element body, photographs, and a set of limitations and definitions that look like boilerplate. Buyers read the summary, glance at the red-flag photos, and decide the house is “pretty good” or “a disaster”. Inspectors wrote something more specific than that.
This is a reading guide for the document you actually receive after a pre-purchase inspection. It is not a guide to suing anyone, and it is not a substitute for what a pre-purchase building inspection covers. If you only take one habit from this piece, take this one: read the limitations before the adjectives.
Start with the agreement, not the summary
The first page that matters is the one that says what was inspected, for whom, and on what terms. It should name AS 4349.1, the address, the date, the weather, the inspector, and whether a timber pest inspection was included. If the client name is the selling agent, or the scope says “visual inspection of accessible areas only” and then the agent has told you the inspector “went through everything”, you already have a problem.
Check the construction description. “Brick veneer, concrete slab, sheet-metal roof, circa 1994” is a different house from “double-brick, suspended timber floor, terracotta tile, circa 1928”. The defects that are normal in one are not normal in the other. A report that gets the construction type wrong is a report written in a hurry.
Then read the access notes. “Roof space accessed. Subfloor not accessed — clearance less than 400 millimetres at the eastern bay.” That is not a footnote. It is a hole in the inspection. If the eastern bay is also where the bathroom sits, you do not have a report on the wet area from below.
Condition ratings are not a score out of ten
Inspectors use a small set of words — good, fair, poor, and sometimes serviceable or dilapidated — to describe an element relative to age and type. They are not using a national scoring system. Two inspectors can look at the same 1960s gutters and write “fair” and “poor” without either of them being reckless. The useful question is not the adjective. It is the observation underneath.
“Gutters in fair condition” might mean the steel is intact, the fall is uneven, and there is corrosion at the joints. “Gutters in poor condition” might mean the same joints have holed and are wetting the fascia. The photographs should show you which sentence you are in. If they do not, ask.
Buyers trip on “fair condition for age” more than on any other phrase. It sounds like a pass. It is a comparison. A 1950s weatherboard in Launceston can be in fair condition and still need stumps, paint and a roof. A 2018 project home in the Queensland south-east can be in fair condition and still have incomplete drainage and a shower that was never waterproofed. Age is not a discount on the work.
Major defects, minor defects and safety hazards
AS 4349.1 asks the inspector to identify major defects and to draw attention to safety hazards. The definitions sit in the standard and are usually reprinted in the report. In plain terms:
A major defect is a defect of sufficient magnitude where rectification has to be carried out to avoid unsafe conditions, loss of value, or further deterioration. A failed roof valley that is wetting a ceiling, a stump that has lost its bearing, or a balcony with no effective barrier can all land in this column. So can a pattern of cracking that suggests ongoing movement rather than old, stable settlement.
A minor defect is everything else that is defective but not in that category: cracked panes, weathered paint, a sticking door, a fence palings loose, silicone that needs replacing. Minor is a technical word. It is not the same as cheap.
A safety hazard is something that can injure someone now: a live exposed conductor, a missing balustrade, a rotten stair tread, a pool gate that does not latch, asbestos-cement sheet smashed on the ground. Safety hazards are the items you deal with before you move children in, whether or not they change the purchase price.
Inspectors sometimes put a leaking shower in minor and a leaning retaining wall in major, or the reverse, depending on the extent. Do not argue the label in isolation. Read the description, look at the photo, and decide whether you need a plumber, an engineer, or a price.
What “further investigation” is doing
“Further investigation recommended” is the sentence that makes buyers restless. It means the visual method ran out. The inspector can see a consequence — staining, softness, a smell, a hollow skirt — and cannot see the cause without opening something, testing something, or calling a different trade.
Common further-investigation items in Australian reports include:
- Moisture at a shower hob, with a recommendation for a licensed plumber and, if needed, removal of wall linings.
- Cracking that may be old or live, with a recommendation for a structural engineer and, on reactive clay, a look at drainage and trees.
- A roof space that could not be traversed, with a recommendation to revisit after insulation is lifted or a walkway is put in.
- Suspected asbestos-cement, with a recommendation for sampling, not a declaration that the house is “full of asbestos”.
- Evidence consistent with timber pests, with a recommendation for an AS 4349.3 inspection even if the building inspector has already noted mudding.
If you treat “further investigation” as optional, you are buying the unknown at the asking price. If the contract timeline is short, this is the item that decides whether you extend, terminate, or proceed with your eyes open. Missed defects and an inspector’s duty of care is the later question. The immediate question is whether you will pay for the next look.
Photographs are evidence, not decoration
A modern report is heavy with photographs. Some are useful. Some exist because the software prompts for an image on every element. Learn to tell them apart.
A useful photograph has a subject you can identify, a sense of scale, and a caption that matches the text. “South elevation, stepped cracking above the lounge window, approximately 3 millimetres, old paint in the crack” is a photograph you can send to an engineer. “Crack” with a blurry close-up of a cornice is not.
Look for the photographs that were not taken. If the report discusses the subfloor and there is no image of the stumps, the inspector may not have been in there, or the camera failed, or the access was worse than the text admits. If the roof is described as “generally serviceable” and every photo is from the ground at forty metres, you do not have a close look at the valleys.
Photographs also date the inspection. A dry garden in February in Melbourne does not tell you how the same paving ponds in August. The weather note and the date are part of the evidence.
Summary versus body versus appendix
Read in this order.
- Limitations and areas not inspected.
- Safety hazards.
- Major defects and further-investigation items.
- The body, element by element, including the boring pages.
- The summary, last.
The summary is a management letter. It is written for a buyer who will not read thirty pages, which is most buyers. It is also the page that gets forwarded to agents, parents and group chats. That is why it is the page most likely to be softer than the body, or sharper than the body, depending on the inspector’s habits.
The body is where the inspector records what they saw. A summary that says “the house presents in fair condition consistent with age” can sit on top of a body that lists a rusted lintel, a bouncing kitchen floor, and a downpipe that soaks a footing. Those three items are the negotiation. The adjective is not.
The appendix is where definitions, the standard extracts, the terms of engagement, and sometimes the pest report or the invoice live. It is dull and it is where the inspector’s liability position is stated. If you later think something was missed, this is the document that says what they agreed to look at. What an inspection report is not is worth reading before you treat the appendix as optional.
How buyers misread the document
A few patterns show up in every market.
The clean summary. The inspector found a dozen minor items and no major defect. The buyer hears “nothing wrong”. Six months later the shower leaks, which was listed as failed silicone and elevated moisture. The report was not silent. The reader was.
The horror-file. The inspector took eighty photographs of every cobweb in a 1910 terrace. The buyer decides the house is unliveable. Terraces in Paddington, Carlton and Battery Point look like that. The question is which of the eighty photos is a structural or water problem, and which is a painting quote.
The cost substitution. The report says “recommend licensed plumber”. The buyer asks the inspector what a plumber will charge, then uses that number as a reduction. The inspector is not a quantity surveyor. A leaking shower can be a silicone job or a full rebuild of the waterproofing. Those are not the same number.
The interstate template. A report written on software designed around Queenslander construction will talk about stumps on a Perth slab house. A report written for Melbourne cavity brick will under-describe a Darwin cyclone-rated frame. If the template language does not match the house in front of you, the inspector is not looking hard enough.
The pest skip. The building report mentions “no visible termite activity in accessible areas” and the buyer in Adelaide or Hobart decides they do not need a timber pest inspection. Termites occur in all states and territories. The building inspector’s glance is not an AS 4349.3 inspection.
Using the report in a negotiation
A report is a negotiating document only after it is a decision document. First decide whether you still want the house. Then decide which items change the price or the terms.
Items that usually move a conversation:
- Safety hazards the vendor can fix quickly: a balustrade, a pool gate, an unsafe heater.
- Water that is getting in now: roof, shower, leaking deck, overflowing gutters wetting walls.
- Structural items that need an engineer: movement, failed stumps, a leaning wall.
- Incomplete or unapproved work that will become your problem at the next sale.
- Timber pest evidence, which is a specialist conversation, not a painting one.
Items that rarely move a conversation, unless the house was priced as renovated:
- Worn carpet, tired paint, an old oven, a fence that has always leaned.
- Cracked paths that are not affecting the dwelling.
- Cosmetic cracking that the inspector has described as consistent with age.
How you use the report depends on the clause. In New South Wales and Queensland, a building-and-pest special condition written as “satisfactory to the buyer” gives you a wider door than a clause that requires a major defect. In Victoria, the section 32 will not list these items for you. In Western Australia, if the condition was not in the offer, you may be asking for a favour, not exercising a right. In South Australia, Tasmania, the ACT and the Northern Territory, the same logic applies: the contract is the lever, the report is the evidence.
Do not send the vendor the entire PDF with a demand to “fix all defects”. Send a short list, in your conveyancer’s language, with the relevant pages attached. If you need a number, get a plumber or a builder to walk the house with the report in hand. That number is a quote. The report was never a quote.
The report is evidence of what could be seen. A negotiation is an argument about who pays for what happens next. Do not confuse the two documents.
A worked example
A buyer in Geelong receives a report on a 1978 brick veneer. The summary says fair condition for age. The body lists: gutters corroded at the south-west corner with overflow staining on the fascia; silicone failed to the main shower and moisture readings elevated in the adjacent robe; hairline cracking at the cornice in the lounge, described as consistent with seasonal movement on a reactive site; a downpipe discharging to the ground beside the slab; and “further investigation of the shower recommended”.
A buyer who stops at the summary proceeds. A buyer who reads the body gets a plumber into the shower before the clause expires, learns that the waterproofing has failed, and either asks for a credit, asks for works, or leaves. The cracking may be a drainage conversation rather than a structural one, especially if the downpipe is wetting the slab. The gutters are a maintenance item unless the fascia is already soft.
None of that is in the word “fair”. All of it is in the report.
What to do the evening you receive it
- Read limitations and access notes first. If a key area was closed, decide whether you need a reattend.
- List safety, water, structure and pest. Leave paint and carpets for later.
- Call the inspector once, with specific questions, not “is it a good house?”. Ask what they would investigate if they were buying it.
- Book the specialist the report names. Do it that night if the clause is short.
- Tell your conveyancer which items you want to use, and which you are prepared to live with.
- Keep the PDF. You will want it when a tradesperson says “no one could have known”.
A report that is read properly is worth the fee. A report that is used as a vibe is a very expensive PDF. The inspector has already done their part of the job. The rest is reading.
