Arborist report services
Arborist report support that clarifies which trees stay, which go, and how to protect them during works.
Trees are frequently a decisive factor in development assessment, both for their amenity and habitat value and for the constraints they place on building footprints. Arborist reports document the trees on and near a site — their species, health, structure, and significance — and assess how a proposal affects them. Environmental Specialists Australia provides arborist report input and advisory support for development and infrastructure projects, helping proponents understand tree-related constraints and prepare the documentation councils request during assessment.
Councils across Australia protect trees through local tree preservation and vegetation controls, and most development applications involving established trees must address their retention or removal. Our work considers tree protection zones, the effects of excavation and level changes on root systems, and the measures needed to retain valued trees through construction. We present findings clearly so applicants, designers, and assessing officers can weigh tree outcomes against the wider project, and we coordinate specialist input where a particular tree issue calls for it.
When is this service required?
- Development applications affecting established or protected trees
- Sites where council tree preservation controls apply to proposed works
- Excavation or level changes near tree root zones
- Assessment of tree health, structure, or retention value before design is fixed
- Tree removal proposals requiring justification to a consent authority
- Tree protection planning ahead of construction on a treed site
Our process
- Tree inventory: Identification and recording of trees on and adjacent to the site, including species, dimensions, and location.
- Condition review: Assessment of tree health, structure, and retention value to inform design decisions.
- Impact assessment: Assessment of how the proposed works affect tree protection zones and root systems.
- Retention advice: Advice on which trees can be reasonably retained and the constraints they impose on layout.
- Protection measures: Preparation of tree protection guidance for retained trees through the construction period.
What we deliver
- Arborist reports with tree inventory and condition data
- Tree protection zone mapping and constraints
- Retention and removal recommendations
- Impact assessment of proposed works on trees
- Tree protection measures for construction
- Supporting documentation for development applications
Frequently asked questions
- When does a development application need an arborist report?
- Most councils require one where works affect established or protected trees, or where trees sit close to a proposed building footprint. The report documents the trees present, assesses the impact of the proposal, and supports decisions on retention, protection, or removal.
- What is a tree protection zone?
- It is the area around a tree — largely reflecting its root system — that needs to be protected from disturbance for the tree to remain viable. Excavation, filling, or compaction within this zone can damage the tree. Reports define these zones so design and construction can work around them.
- Can trees be retained on a constrained site?
- Often, yes, provided the design respects tree protection zones and construction avoids damaging root systems. Early arborist input lets valued trees influence the layout rather than being lost to it. Where retention is not feasible, the report sets out the basis for removal for council to consider.
- How early should an arborist be involved?
- Ideally before the design is fixed. Knowing which trees are worth retaining and the constraints they impose can shape building placement, driveways, and levels. Involving an arborist early avoids redesign later and strengthens the tree component of the application.