What Does a Structural Engineer Report Include?
A structural engineer report is a documented assessment of a building’s structural condition, produced by a registered structural engineer following a site inspection. It is not a quote for repairs. It is a diagnosis, written for the property owner, conveyancer, or insurer who needs to understand what the building’s structure is doing and what, if anything, needs to be done about it. Understanding the sections of the report helps the reader act on it correctly rather than misinterpreting findings as either more or less serious than they are.
What Does a Structural Engineer Report Include?
A well-structured structural engineering report for a residential property contains the following sections, in roughly this order:
Executive Summary
The executive summary states the overall condition of the property in plain language. It typically assigns an overall condition rating, identifies the most significant findings, and states whether any immediate action is recommended. This section is written for a non-technical reader and should be understandable without reading the rest of the report.
For most Melbourne properties assessed by PBE, the executive summary will include an overall condition rating on a 1 to 5 scale (described in detail below) and a brief narrative noting the dominant building system, the primary concerns identified, and the recommended priority of action.
Introduction and Scope
This section records the purpose of the inspection, who instructed it, the date of the inspection, the property address, and the structural engineer’s credentials. It also documents any limitations. Common limitations include:
- Areas that were not accessible during the inspection
- Elements concealed by finishes (structural frame within a finished wall cannot be directly inspected)
- Elements not within scope (the report covers structural elements only, not mechanical, electrical, or plumbing systems)
Why limitations matter: If a significant area of the building was not accessible, the report’s conclusions may not extend to that area. A follow-up inspection may be warranted after access is improved.
Methodology
The methodology section describes how the inspection was conducted. PBE’s structural assessments are conducted as visual inspections from ground level and safely accessible areas. The methodology typically includes:
- Visual inspection of accessible structural elements from ground level
- Crack gauge measurements to record the width of visible cracks
- Photographic documentation of observed conditions
- Review of available plans or documentation
The inspection does not involve breaking apart, dismantling, removing, or moving objects, including floor coverings, sidings, appliances, or personal possessions. No subfloor access is included as part of a standard structural inspection.
Findings
The findings section documents the structural condition of the property as observed on the day of inspection. The engineer records the nature and location of any defects, assigns crack classifications where applicable, and provides context for the findings relative to the property age and construction type.
For Melbourne period homes, this section will typically note common characteristics of the building stock (brick construction, timber or concrete footings, tiled or sheet roofing) and explain whether observed conditions are consistent with typical age-related behaviour or whether they indicate a more significant structural concern.
Photographs
A structural engineer report should include photographs of every significant defect observed, referenced to the text. Each photograph should be labelled with a figure number, a description of what is shown, and ideally an indication of location within the building.
How to read the photos: Cross-reference each image with the corresponding text in the findings section. The photograph shows what the engineer saw. The text explains what it means. Neither is complete without the other.
Crack Classification
Any cracks identified during the inspection will be classified against the CSIRO Damage Category Scale. This is the standard framework used by structural engineers across Australia for residential building crack assessment.
| Category | Crack Width | Significance |
|---|---|---|
| 0 | Under 0.1mm | Hairline. No structural significance. |
| 1 | Up to 1mm | Fine cracks. Cosmetic repair only. |
| 2 | Up to 5mm | Cosmetic repair recommended. May indicate minor movement. |
| 3 | 5mm to 15mm | Engineering assessment required. Structural repair likely needed. |
| 4 | 15mm to 25mm | Significant structural concern. Structural repair required. |
| 5 | Over 25mm | Urgent structural repair required. Structure may be unsafe. |
For Melbourne period homes (pre-1970 construction on reactive clay), Category 1 and 2 cracking is the norm and does not indicate an unsafe building.
What Is a Condition Rating in a Structural Report?
In addition to (or sometimes instead of) the CSIRO crack categories, a structural report will assign a condition rating to each element and an overall rating to the property. PBE uses a 1 to 5 scale:
| Rating | Condition | Recommended Action |
|---|---|---|
| 1 | New or as-new | No defects observed. No action required. |
| 2 | Good | Minor cosmetic issues only. No structural action required. |
| 3 | Fair | Some defects present. Action recommended within short to medium term. |
| 4 | Poor | Significant structural defects. Short-term action required. |
| 5 | Failed / critical | Immediate action required. |
The overall property rating is a composite of the observed findings, weighted towards the most critical element. A property where one area rates 4 and all other observations rate 2 will typically receive an overall rating of 3 to 4, reflecting the primary concern.
What Does the Recommendations Section Look Like?
The recommendations section of a structural report is organised by timeframe. This structure allows property owners and asset managers to prioritise actions based on urgency and budget.
Not every report will have items in every timeframe category. A property in good overall condition might have only medium-term and long-term maintenance recommendations.
What to Do After Getting a Structural Engineer Report
The most common misunderstanding after receiving a structural report is treating it as a specification for repair works. It is not. It is a diagnosis. A recommendation to “attend to cracking to masonry veneer at the south-west corner” identifies the problem and its priority, but it does not specify how the repair should be done.
The appropriate next steps depend on the severity of the recommendations:
Keep the report with the property records. If the property is sold, the report provides evidence that a structural assessment was conducted at a particular point in time, which may assist with settlement negotiations if a purchaser raises concerns about visible cracking.
How Long Does a Structural Engineer Report Take?
The inspection itself typically takes 1 to 2 hours for a standard residential property, depending on the property size and the number of defects requiring detailed documentation. A larger property or one with significant defects may take longer.
Following the inspection, report preparation typically takes 3 to 7 business days. PBE aims to issue reports within 5 business days of the inspection date in standard cases.
How Much Does a Structural Engineer Report Cost?
For a standard residential structural inspection and report in Melbourne, fees typically sit around $1,500 plus GST. The fee depends on the property size, travel distance from the engineer’s office, and the complexity of the issues identified.
Properties with active structural concerns or multiple buildings on site will typically attract higher fees due to the additional time required for inspection and reporting.
Melbourne-Specific Context: Period Homes and Expected Damage Levels
Melbourne’s stock of pre-1950 brick homes, particularly in Edwardian and Victorian-era suburbs, commonly presents with Category 1 to 2 CSIRO damage that is entirely normal given the property age and soil conditions. Purchasers seeing these properties for the first time sometimes interpret any cracking as a sign of serious structural problems.
A structural engineer familiar with Melbourne’s period housing stock will provide context that a generic report cannot. A 100-year-old brick home in Hawthorn on reactive clay that shows Category 1 to 2 cracking at window corners, stair-step cracking in the mortar joints, and some floor level variation is displaying entirely expected behaviour for its age and substrate. The same findings in a 10-year-old brick home would warrant closer investigation.
Frequently Asked Questions
What does a structural engineer report include?
A structural engineer report includes an executive summary with an overall condition rating, an introduction noting scope and limitations, a methodology description, a findings section documenting observed structural conditions, photographs of all significant defects, crack classifications against the CSIRO damage category scale, and recommendations organised by timeframe (immediate, short term, medium term, and long term).
How long does a structural engineer report take?
The inspection typically takes 1 to 2 hours for a standard residential property. The report is then prepared within 3 to 7 business days of the inspection. PBE aims to issue reports within 5 business days in standard cases.
How much does a structural engineer report cost?
For a standard residential property in Melbourne, structural inspection and report fees typically sit around $1,500 plus GST, depending on property size, complexity, and travel distance.
What is a condition rating in a structural report?
A condition rating is a numerical score, typically on a 1 to 5 scale, assigned to structural elements and to the property overall. Rating 1 means new or as-new condition with no defects. Rating 5 means the element has failed or is in critical condition requiring immediate action. Ratings 2 and 3 represent good and fair condition with minor to moderate defects. Rating 4 indicates poor condition requiring short-term action.
What should I do after getting a structural engineer report?
Read the recommendations section first and note which items are in the immediate category, as these require action within 4 weeks. For structural repairs, engage a structural engineer to specify the work before engaging a builder. For cosmetic repairs, engage a builder directly using the engineer’s description. For monitoring recommendations, establish a dated photographic record and re-engage a structural engineer if any change is observed. Keep the report with the property records for future reference at time of sale.
Need a Structural Engineer Report in Melbourne?
PBE prepares structural reports for residential and commercial properties across Melbourne. Reports delivered within 5 business days of the site inspection.