When you’re buying a home, it’s easy to focus on what you can see during an open inspection — the layout, kitchen, bathrooms, finishes and overall presentation. But these don’t necessarily tell you what condition the building itself is in.
A pre-purchase building inspection assesses the visible and accessible areas of a property to identify defects, deterioration, moisture concerns, structural issues and other conditions that may require attention.
So, what does a pre-purchase building inspection actually include?
Below, we break down the main areas that may be assessed and explain what your building inspector is looking for.
If you’re new to the process, start with our guide explaining what a pre-purchase building inspection is.
What Areas Are Included in a Pre-Purchase Building Inspection?
The exact scope of an inspection depends on the property, its construction and which areas can be safely and reasonably accessed.
Depending on the home, accessible areas assessed during a pre-purchase building inspection in Melbourne may include:
- building interior
- building exterior
- roof exterior
- roof space
- subfloor areas
- walls, ceilings and floors
- visible structural elements
- bathrooms and other wet areas
- windows and doors
- external cladding
- garages
- balconies
- retaining walls
- other accessible external structures
- visible drainage conditions around the building.
The inspection isn’t simply about ticking off rooms on a checklist.
An experienced building inspector is looking for signs that different parts of the property may not be performing as expected, as well as defects that could require maintenance, repair or further specialist investigation.
1. Building Interior
The interior of the home provides many clues about its overall condition.
An inspector may assess accessible internal areas including walls, ceilings, floors, doors, windows and visible building elements.
Potential concerns can include:
- cracking
- movement
- uneven floors
- moisture staining
- deterioration
- defective finishes
- damaged building materials
- poorly completed previous repairs
- visible workmanship issues.
Doors and windows can also provide useful information. For example, doors that bind or don’t close correctly can sometimes occur alongside movement elsewhere in the building.
Individual findings need to be considered in the context of the property rather than viewed in isolation.
For a broader overview of potential issues, see our guide to the top 15 common building defects found in Melbourne homes.
2. Building Exterior
The exterior of a property is assessed for visible defects affecting accessible walls, cladding and other building elements.
Depending on the home’s construction, an inspector may look for:
- cracking
- damaged brickwork
- deteriorated mortar
- damaged or deteriorated cladding
- moisture-related deterioration
- defective finishes
- gaps or separation between materials
- movement
- poor workmanship
- deterioration around openings.
The type and age of the home can influence the defects likely to be encountered.
Melbourne has an extremely diverse housing stock, so the inspection considerations for an older weatherboard or period home can be quite different from those for a modern townhouse.
Our guide to common building defects in Melbourne homes by age explores those differences in more detail.
3. Roof Exterior
Where it can be safely assessed, the roof exterior is an important part of the inspection.
Visible concerns may include:
- cracked or damaged roof tiles
- deteriorated roofing materials
- defective flashing
- damaged ridge capping
- corrosion
- poor previous repairs
- deterioration around roof penetrations
- visible drainage or guttering issues.
Roof defects can be particularly difficult for buyers to identify at an open home because the roof is rarely an area they can closely assess themselves.
Problems at roof level can also contribute to moisture entering other areas of the property.
4. Roof Space
Where safe and reasonable access is available, the roof space can provide additional information about the building.
An inspector may look for visible evidence of:
- water entry
- moisture staining
- deteriorated materials
- damaged structural components
- movement
- defects to accessible roof framing
- previous repairs
- other visible conditions requiring attention.
Evidence found inside the roof space can sometimes help explain staining, moisture or deterioration observed elsewhere in the home.
5. Subfloor
Homes constructed with suspended floors may have a subfloor area beneath the building.
Where accessible, the subfloor can be particularly useful when assessing an established property because problems may be present underneath the home without being obvious from inside.
Potential concerns include:
- excessive moisture
- poor ventilation
- deterioration
- drainage issues
- visible movement
- damaged building elements
- conditions affecting accessible supports
- other signs requiring further investigation.
Subfloor conditions can be especially relevant when considering Melbourne’s older housing stock.
If you’re looking at an established property, our building inspection checklist for Melbourne buyers provides a useful broader guide to what should be considered before purchasing.
6. Structural Concerns
A pre-purchase building inspection also looks for visible signs that could indicate a structural concern.
These may include:
- significant cracking
- movement or settlement
- distorted building elements
- uneven floors
- separation between building components
- deterioration of structural elements
- concerns associated with previous alterations.
Importantly, not every crack means a house has a major structural problem.
The location, pattern, width and extent of cracking need to be considered alongside other observations.
Where a potentially significant concern is identified, further assessment by an appropriately qualified specialist may be recommended.
We’ve covered some of these warning signs separately in Structural Issues Most Buyers Miss at Open Homes.
You can also read our guide explaining the difference between a major defect and a minor defect.
7. Bathrooms, Laundries and Wet Areas
Wet areas deserve particular attention because problems with moisture and waterproofing can lead to deterioration elsewhere in the building.
Accessible bathrooms, laundries and other wet areas may be assessed for visible evidence of:
- moisture intrusion
- deterioration
- damaged finishes
- cracking
- defective sealants
- water-related damage
- other visible concerns.
A pre-purchase inspection does not involve opening walls or removing finishes to inspect concealed waterproofing membranes.
However, visible evidence and non-destructive testing can help identify areas that may require closer investigation.
Elevate also provides dedicated waterproofing inspections where a more specific waterproofing assessment is required.
8. Moisture and Water Damage
Moisture is one of the most important areas to investigate when assessing an established home.
Water can enter or accumulate within a property due to issues involving:
- roofing
- flashing
- plumbing
- wet areas
- external walls
- windows and doors
- drainage
- subfloor conditions
- waterproofing.
Sometimes moisture problems are obvious. In other cases, there may only be subtle signs such as staining, deterioration or changes to building materials.
Elevate uses non-destructive moisture meters and thermal imaging as part of its inspection process to assist in identifying areas that may require further investigation.
If you’re buying an established property, also read Signs of Water Damage to Look for When Buying a House.
9. Site Drainage
The condition of the house itself isn’t the only consideration.
How water moves around the property can also affect the building over time.
An inspector may identify visible concerns such as:
- inadequate surface drainage
- water collecting near the building
- poor falls around the property
- drainage conditions contributing to moisture
- deterioration associated with uncontrolled water.
Poor drainage can contribute to dampness, material deterioration and movement, which is why the surrounding site should be considered as part of the overall assessment.
10. Garages, Balconies and External Structures
Depending on the property and access, the inspection may also include relevant external structures such as:
- garages
- balconies
- decks
- retaining walls
- verandahs
- accessible outbuildings.
These areas may have their own defects involving deterioration, movement, moisture, drainage, construction or safety.
What Defects Can Be Found During an Inspection?
There is no standard list of defects that will be found because every property is different.
One home may have relatively minor maintenance requirements while another may present multiple significant issues.
Common findings can involve:
Cracking and Movement
Cracking may be associated with normal material movement, ageing, settlement or more significant building movement.
Moisture Intrusion
Water entry, elevated moisture and damp conditions can contribute to deterioration and may indicate another underlying problem.
Poor Workmanship
Renovations, extensions and previous repairs can sometimes contain visible workmanship defects.
Deteriorated Materials
Building materials naturally deteriorate over time, particularly when exposed to moisture or inadequate maintenance.
Roofing Defects
Roofing problems can lead to water entry and deterioration elsewhere in the home.
Drainage Problems
Poor drainage can contribute to moisture conditions around or beneath the building.
Safety Concerns
An inspector may also identify visible building-related conditions that present a potential safety issue.
For more examples, read What a Pre-Purchase Building Inspection Reveals About Melbourne Homes.
Does a Pre-Purchase Building Inspection Include Termites?
Not automatically.
A building inspection and a timber pest inspection are separate assessments.
A pre-purchase building inspection focuses primarily on the building’s visible and accessible condition.
A timber pest inspection is specifically focused on identifying evidence of termites and other timber pests, timber pest damage and relevant conditions within the inspection scope.
If you want both assessments, Elevate provides building and pest inspections in Melbourne.
We’ve also explained the distinction in Pre-Purchase Building Inspection vs Building and Pest Inspection.
What Isn’t Included in a Pre-Purchase Building Inspection?
Understanding the limitations of an inspection is just as important as knowing what is included.
A standard pre-purchase inspection is generally a visual and non-invasive assessment of accessible areas.
An inspector cannot see through walls, floors or ceilings or assess areas that cannot be safely accessed.
Depending on the property and the issues identified, separate specialist assessments may be required for matters involving:
- asbestos
- termites and timber pests
- specialist structural engineering
- concealed plumbing
- electrical systems
- specialist drainage investigations
- concealed waterproofing
- other areas requiring destructive or invasive investigation.
For example, if asbestos-containing materials are a concern, Elevate offers separate asbestos inspections and surveys.
The building inspection report may recommend further specialist investigation when something outside the inspection scope warrants closer assessment.
What Is Included in the Building Inspection Report?
The physical inspection is only one part of the process.
Afterwards, the findings are documented in a building inspection report.
Depending on the findings, the report can identify defects, areas of concern, photographs and recommendations about issues that may require maintenance, repair or further investigation.
The report gives you something concrete to review rather than trying to remember everything discussed during the inspection.
We’ve broken this down separately in What’s Included in a Pre-Purchase Inspection Report?.
If significant issues appear in the report, our guide to what happens when a building inspection finds major defects explains some of the next steps buyers may consider.
When Should the Inspection Be Completed?
Ideally, you want to understand the property’s condition before you become unconditionally committed to buying it.
The appropriate timing can differ depending on whether you’re purchasing through private sale or auction.
For an auction property, buyers will generally want the inspection completed before bidding.
For a private sale, the timing may depend on your contract and any applicable conditions.
Read When to Book a Pre-Purchase Building Inspection in Melbourne for a more detailed explanation of the different scenarios.
If you’re considering an auction property, Elevate also provides pre-auction building inspection reports.
What About Apartments?
Apartments can involve different inspection considerations from detached houses.
Depending on the property and inspection scope, there may be accessible areas within the apartment itself that warrant assessment, while common property and other building areas can involve different access and responsibility considerations.
If you’re buying an apartment, see our dedicated apartment inspections in Melbourne.
What About Newly Built Homes?
Pre-purchase inspections aren’t limited to older homes.
Recently completed properties can also have workmanship defects, incomplete work or other issues requiring attention.
The inspection process for a newly constructed property is different from assessing an established home, which is why Elevate offers dedicated new home building inspections.
If you’re approaching handover, you may instead need a PCI and pre-handover inspection.
What Does AS 4349.1 Have to Do With the Inspection?
Pre-purchase residential building inspections in Australia are commonly undertaken with reference to AS 4349.1 – Inspection of Buildings: Pre-Purchase Inspections – Residential Buildings.
Understanding the inspection standard is useful because it helps buyers understand the intended scope and limitations of the assessment.
We’ve covered this separately in What Is Australian Standard AS 4349.1 in Building Inspections?.
Frequently Asked Questions
Does a pre-purchase building inspection check the roof?
The roof exterior and roof space may be assessed where safe and reasonable access is available. The inspector looks for visible defects, deterioration, moisture concerns and other conditions requiring attention.
Is the subfloor included?
Where the property has a subfloor and safe access is available, it may form part of the inspection. This can reveal moisture, drainage, deterioration and other conditions that aren’t readily visible from inside the home.
Does an inspection check for structural damage?
Accessible building elements are assessed for visible signs that may indicate structural concerns, including significant cracking, movement, deterioration and distortion. Further specialist assessment may be recommended where appropriate.
Are moisture problems checked?
Yes. Visible moisture concerns are relevant to a pre-purchase inspection. Elevate also uses non-destructive moisture meters and thermal imaging to assist with identifying areas that warrant closer investigation.
Does a pre-purchase building inspection include pest inspection?
Not automatically. Building and timber pest inspections are separate assessments. Buyers wanting both can arrange a combined building and pest inspection.
Will every defect in the property be found?
No inspection can guarantee that every defect will be identified. Concealed, inaccessible or unsafe areas cannot necessarily be assessed, and a standard inspection is non-invasive.
Arrange a Pre-Purchase Building Inspection in Melbourne
Knowing what a pre-purchase building inspection includes helps you understand both the value and limitations of the inspection before you book.
Elevate Building Inspections provides pre-purchase building inspections across Melbourne covering accessible areas of established homes, apartments and residential properties.
Our inspections are backed by practical building experience, non-destructive inspection equipment and clear digital reporting to help you better understand the property you’re considering.
Book your Melbourne pre-purchase building inspection before you commit to your next property.
