Not every tree removal requires an arborist report, but many do. Understanding when a report is necessary and when you can proceed without one helps you plan your project timeline and budget more effectively.
When You Need an Arborist Report
An arborist report is typically required in the following situations:
- Protected trees: If the tree is listed under your council’s tree preservation order, you will need a report to support a removal application
- Development applications: Any DA that affects significant trees requires a tree impact assessment
- Heritage-listed properties: Trees on heritage properties often have additional protections
- Neighbour disputes: If a tree dispute ends up in mediation or court, a formal report carries weight
- Insurance claims: Insurers may require professional assessment before paying out claims related to tree damage
When You Can Skip the Report
In many cases, you do not need a formal arborist report to remove a tree. Common exemptions include:
- Small trees: Most councils exempt trees below a certain size, typically under 3-5 metres or with a trunk diameter under 300mm
- Dead trees: Many councils allow removal of dead trees without a permit, though you may need to prove the tree is dead
- Exempt species: Some councils list species that can be removed without approval, often including declared weeds and invasive species
- Emergency situations: If a tree has fallen or poses an immediate danger, you can usually arrange emergency removal and notify council afterwards
How to Check Your Obligations
The quickest way to determine whether you need a report is to contact your local council’s planning or environment department. Provide the tree species if you know it, the approximate size, and your property address. They will tell you whether the tree is protected and what documentation is required. Our arborist report guide provides a comprehensive overview of report types and when each is needed.
The Cost of Getting It Wrong
Removing a protected tree without approval can result in fines of $10,000 to $1 million depending on the jurisdiction and the significance of the tree. Some councils have prosecuted homeowners and required them to plant replacement trees worth tens of thousands of dollars. The cost of an arborist report is modest insurance against these penalties.
Combining the Report with the Removal
Some arborists offer a discount when you engage them to both write the report and perform the tree removal once approved. Just ensure the report is genuinely independent and that the arborist’s recommendation is based on the tree’s condition rather than the prospect of removal work. For a complete walkthrough of the removal process, see our tree removal guide.
Not sure whether you need an arborist report? Use our free tool to connect with qualified arborists in your area who can advise on your council’s requirements and provide obligation-free quotes.