Keeping Trees for the future.
A proactive investment in the health, safety, and sustainability of the trees that grace our urban forest.
Arboricultural Impact Assessments (AIA)
Melbourne & Victoria
Planning a development or renovation near trees? Our AQF Level 5 consulting arborists deliver comprehensive Arboricultural Impact Assessments (AIAs) that meet AS4970‑2025 and local council guidelines.
✅ Tree Protection Zones (TPZ) & Structural Root Zones (SRZ)
✅ Council-ready reports for planning permit applications
✅ Fast delivery — typically within 2–4 business days
What Is an Arboricultural Impact Assessment (AIA)?
An Arboricultural Impact Assessment (AIA) evaluates the effect of proposed development on existing trees. It includes tree surveys, health evaluations, TPZ and SRZ calculations, and mitigation strategies aligned with AS4970‑2025 standards
Why You Need an Arboricultural Impact Assessment? (AIA)
Councils Require It – Melbourne councils such as Merri‑bek, Banyule, Boroondara, and others mandate AIAs with planning permit applications.
Avoid Delays & Fines – Proactively managing tree impacts speeds approvals and reduces costly delays or permit refusals.
Ensure Tree Retention – Identifies trees with ecological, aesthetic, or heritage value and outlines retention strategies.
Support Sustainable Design – Enables architects and planners to integrate tree preservation into development design.
Our AIA Process
(Step-by-Step)
Tree Inventory & Site Survey – Recording species, DBH, canopy spread, and health.
Health & Risk Evaluation – Assessing structural integrity and potential hazards.
TPZ & SRZ Calculations – Based on AS4970‑2025 formulas.
Impact Analysis – Assessing encroachments and root damage from construction.
Mitigation Strategies – Proposing fencing, altered construction methods, root-care protocols, and contingency measures.
AIA Report Compilation – Includes photos, tree numbering, maps, TPZ/SRZ overlays, and council‑format plans.
Related Services
Project Arborist Services (site supervision & inspections)
Tree Protection Management Plans (TPMP)
Tree Retention & Removal Plans
Ready to Get Started?
Contact us today to arrange a site inspection and receive your quote.
[Request AIA Quote] [Call Tyson – 0437 475 763]