Tree Risk Assessments
When is a tree a hazard, and when is it just misunderstood?
A tree risk assessment helps you answer that question with confidence. It’s a structured process that evaluates the potential for tree failure and the consequences if it does, so you can make informed, defensible decisions about pruning, removal, or risk mitigation.
Whether you’re managing trees on a private property, commercial development or local council land, getting the right advice from a qualified arborist can prevent costly mistakes and unnecessary removals.
100% Council Compliance or Your Money Back
If your report isn’t accepted due to no-compliance, we refund you. No fuss. No forms. No stress.
What Is a Tree Risk Assessment?
A tree risk assessment is a formal evaluation of the likelihood and potential consequences of tree failure. It’s designed to identify trees that pose a safety risk (whether due to structural weakness, disease, environmental stress or poor placement) and recommend appropriate actions.
At TMC Reports, we use the Quantified Tree Risk Assessment (QTRA) methodology - a globally recognised framework that puts tree risk into context.
QTRA provides numerical values to risk, allowing landowners and asset managers to make transparent, well-balanced decisions that align with acceptable safety thresholds.
What’s Included in a Tree Risk Analysis Report?
Our arborist reports are designed to be clear, evidence-backed and council-ready. Your tree risk assessment may include:
- Site inspection by a qualified arborist
- Health and structural integrity assessment
- Identification of visible defects (e.g. decay, cracks, pests)
- Target analysis (what’s at risk if the tree fails?)
- Risk rating using
QTRA methodology
- Recommended management actions (monitoring, pruning, support systems, or removal)
- Photos, diagrams and location mapping
Every report is tailored to suit the site and situation, whether you need a basic tree safety inspection or a comprehensive tree assessment report for council submission.
When Do You Need a Tree Risk Assessment?
Tree risk assessments are commonly required for:
Council Permit Applications
Supports pruning/removal in regulated zones like residential, commercial, or council-managed land.
Legal or Insurance Disputes
Provides expert input for property damage or injury claims on private/commercial sites.
Development Projects
Assesses trees near buildings, excavation zones, or boundaries on development or subdivision sites.
Public Safety Concerns
Identifies and manages risks in parks, schools, walkways, and other high-traffic public areas.
Preventative Risk Management
Monitors and maintains tree health across large estates, heritage gardens, or natural reserves.
Not sure if your tree qualifies? Our expert arborist consultants can quickly advise whether a formal report is necessary and what level of assessment is most appropriate.
Why Use QTRA for Tree Risk Analysis?
QTRA is a scientifically grounded framework that replaces guesswork with quantifiable data. It considers three key factors:
- Probability of Failure: What are the chances this tree (or part of it) will fail within a set timeframe?
- Probability of Impact: Is there something or someone in the target zone if it does?
- Consequences of Impact: What’s the likely outcome if failure occurs?
By combining these into a risk rating, QTRA empowers landowners to prioritise action where it’s truly needed, without over-managing low-risk trees.
Where Tree Risk Assessments Are Used
Tree risk assessments aren’t just for emergencies - they’re a practical tool for managing trees safely across a wide range of settings, like…
1. Private Residential Properties
Concerned about a leaning tree near your home or fence line? A risk assessment provides clarity and helps support council applications for pruning or removal if needed.
2. Commercial and Industrial Sites
Businesses have a legal responsibility to maintain a safe environment for staff and visitors. Tree risk analysis helps identify hazards early, reducing liability and potential downtime.
3. Schools and Education Facilities
Trees in schoolyards, near playgrounds or car parks require extra care. Our school tree risk assessments are tailored for duty-of-care obligations, providing clear, actionable reports for principals, facility managers, and school boards.
4. Local Government and Council Land
Public parks, walking trails, and streetscapes require regular monitoring. Our assessments help councils make data-driven decisions about tree maintenance and removal.
5. Development and Construction Projects
Tree risk assessments are often required as part of permit applications and site planning, particularly where trees are close to buildings, utilities, or access points.
Why Choose TMC Reports?
At TMC Reports, we’re not just ticking boxes. We’re delver trusted tree assessment services to help you make confident, compliant decisions with trees. Here’s what sets us apart:
- Certified QTRA Arborists with years of consulting experience
- Reports accepted by local councils across Melbourne, Sydney, Gold Coast and Brisbane
- Fast turnaround times and clear documentation
- Tailored reporting for different settings, including schools, developments, and residential sites
From backyard assessments to large-scale public spaces, we make sure your
tree management plan is grounded in science and aligned with local regulations.
Sydney’s 5-Star Rated Arborists (Just Ask Our Clients)
“Nick and the team were professional, knowledgeable, and took the time to answer all my questions about tree care. They arrived on time, worked efficiently, and ensured everything was done to perfection. I highly recommend them!”
—
Douglas Stefadouros ⭐⭐⭐⭐⭐
“I have used TMC a few times now and they have always been professional and taken the time to make sure that I was fully informed of all my options before they went ahead and did any work for me which I really appreciated. If you are looking for an arborist with integrity, this is the company you should use!”
—
Colin Isles ⭐⭐⭐⭐⭐
“Nick from TMC Reports has been an absolute gem in the process of getting a permit approved from the council for a diseased tree to be removed. The whole painstaking process with the Monash council unfortunately took over a year, but thankfully Nick was there to help me through it the entire time!”
— Cheryl G ⭐⭐⭐⭐⭐
“As a draftsman I recommend TMC as they produce quality reports with high levels of detail, the team delivers timely service and great communication skills.”
— Matthew Vitale ⭐⭐⭐⭐⭐
FAQs
Do I need a tree risk assessment for council approval?
Yes, many local councils require a tree risk assessment before approving tree removal or major pruning, especially if the tree is protected or in a sensitive area. Including an assessment as part of your preliminary arboricultural report or arboricultural impact assessment can fast-track approvals and ensure your submission is defensible.
Who can perform a tree risk assessment?
Only qualified arborists with the right training and experience should conduct tree risk assessments. They understand how to evaluate structural integrity, root health, and environmental conditions.
What does a tree risk assessment involve?
A typical assessment includes:
Visual inspection of the tree’s structure, canopy, and roots
- Identification of defects like decay, cracks, or poor branch attachments
- Evaluation of site conditions like soil, wind exposure, and usage patterns
- Risk rating based on likelihood and potential impact of failure
- Recommendations for pruning, removal, or monitoring
In some cases, additional services like a root investigation or tree protection plan may be recommended depending on site complexity.
When should I get a tree risk assessment?
You should consider an assessment if:
- A tree is leaning, shedding limbs, or showing signs of decay
- There’s a development proposed near existing trees
- You’re preparing a submission for council approval
- The tree is located in a high-traffic area (e.g., schools, parks)
- Insurance or legal concerns have been raised after storm damage
View more of our services
Tree Management Plan
Learn more
Root Investigation
Learn more
Arboricultural Impact Assessment
Learn more
Prelim Arboricultural Report
Learn more
Book a Tree Risk Assessment
Don’t let uncertainty branch into liability. Whether you’re a property owner, builder, landscape architect or school administrator, we’re here to help.
Speak to a qualified arborist today for expert guidance and fast, council-ready reports.
Email:
info@tmcreports.com.au
Phone:
0401 442 604