Tree Impact Assessments Sydney
Tree impact assessments for Sydney development applications. Evaluate construction impacts, retained-tree viability, TPZ and SRZ constraints, and council arboricultural impact assessment requirements.
Request a Tree Impact Assessment Quote
Clear scope and timing before work begins
Professional Tree Impact Assessments in Sydney
Expert arboricultural services by AQF Level 5 qualified consulting arborists
Planning a development near trees? A tree impact assessment evaluates how proposed construction may affect existing trees on and near your site. Councils and consultants often call this an arboricultural impact assessment (AIA), and it is commonly required for development applications affecting trees throughout Sydney.
We assess tree health and significance, calculate Tree Protection Zones (TPZ) and Structural Root Zones (SRZ), analyse likely excavation or building impacts, and provide recommendations for retention, protection, redesign, or removal. Our AIAs are prepared by AQF Level 5 arborists and aligned with the current AS 4970:2025 tree-protection standard where applicable.
A well-prepared AIA gives councils and project teams clearer arboricultural evidence before construction decisions are made. We work with architects, developers, homeowners, and certifiers across Sydney's metropolitan councils.
Sydney Arborist Solutions
AQF Level 5 Consulting Arborists
Direct Answer
When do you need a tree impact assessment?
A tree impact assessment is usually needed when proposed development, demolition, excavation, services, driveways, pools, or access may affect trees on the site, neighbouring land, or council land.
Development Report Decision Guide
Use the planning stage to confirm whether impact analysis, protection controls, or council reporting is needed first.
DA or design stage near retained trees
Tree impact assessment
Send survey, architectural, demolition, landscape, and services plans.
Retained trees need construction controls
Tree protection plan
Translate impact findings into TPZ, SRZ, fencing, access, and monitoring controls.
Council asks about pruning or removal only
Council tree report
Use a council report where the decision is not tied to broader development impacts.
When a Tree Impact Assessment Is Needed
This is the right report when proposed development may affect trees on the site, neighbouring land, or council land.
Development scenarios we assess
Building near retained trees
Assess how excavation, slabs, pools, driveways, services, landscaping, or access may affect roots, canopy, and tree viability.
DA or planning submissions
Provide the tree survey, TPZ/SRZ calculations, impact analysis, and recommendations commonly requested during development assessment.
Neighbouring or street trees
Identify trees outside the property boundary that may still be affected by works or need protection during construction.
Useful details for an accurate quote
Survey and architectural plans
Send the site survey, proposed plans, demolition plan, landscape plan, and any engineering details available.
Council or certifier request
Forward any RFI, DA lodgement checklist, consent condition, or planning advice that mentions trees or arboricultural reporting.
Tree count and site access
Approximate tree numbers, photos, neighbouring-tree visibility, and access constraints help confirm the inspection scope.
What the final assessment usually covers
Tree survey and significance
Trees are identified, measured, assessed for condition and retention value, and documented for the planning decision.
Impact analysis
The report reviews proposed works against TPZ/SRZ constraints and explains likely impacts on retained, neighbouring, and removed trees.
Retention and protection recommendations
Recommendations may include design adjustments, protection measures, method statements, or follow-on tree protection planning.
Prepare protection measures
If trees are retained through construction, the next step is often a tree protection plan.
Review report pricing
Check the published fee guide for development impact assessment ranges.
Send plans for review
Share the available drawings and council request so we can confirm the report scope.
What's Included in Our Tree Impact Assessments
Comprehensive arboricultural documentation and professional assessment
Development Application Tree Impact Reports
Impact assessments for DA submissions, evaluating how proposed development affects trees and providing recommendations for the planning pathway.
Tree Survey & Mapping
Accurate tree location survey with species identification, dimensions, condition assessment, and significance rating for all trees on and adjacent to the site.
TPZ & SRZ Calculations
Tree Protection Zone and Structural Root Zone calculations aligned with current AS 4970:2025 guidance where applicable, showing where construction pressure is most sensitive.
Impact Analysis
Evaluation of excavation, slabs, services, driveways, pools, demolition, temporary work platforms, and access impacts on roots, canopy, and long-term tree viability.
Retention Recommendations
Clear recommendations for trees that can be retained, trees requiring protection, trees needing design changes, and trees where removal may be justified.
Method Statements
Arboricultural method statements for works within protection zones, including supervision triggers and construction methods that reduce tree damage risk.
Tree Impact Assessments Pricing
Indicative published range before a fixed scope is confirmed
Published range
$800 - $2,500+
Development impact assessment pricing based on the published fee guide; final pricing varies with site size and number of trees.
View Fees & PricingHow Our Tree Impact Assessments Process Works
A clear consulting process helps match the report scope to the property, evidence, and decision being made.
Review the Proposed Works
We check your plans, survey, council request, and tree constraints to confirm the tree impact assessment scope.
Survey and Assess Trees
A Level 5 consulting arborist records species, dimensions, condition, retention value, and site context for relevant trees.
Analyse TPZ, SRZ and Impacts
We assess proposed works against protection zones and identify whether design, methodology, or protection changes are needed.
Deliver the Development Report
You receive an arboricultural impact assessment for the planning pathway, with clear recommendations for retained and affected trees.
Why Choose Our Tree Impact Assessments?
Level 5 consulting expertise, report-led advice, and clear scopes before work begins
AQF Level 5 Certified
Our consulting arborists hold AQF Level 5 Diplomas in Arboriculture, the recognised qualification for arboricultural consulting reports in Australia.
10+ Years Experience
Over a decade of consulting experience across Sydney, with expertise in tree protection, impact assessments, and council documentation.
Council-Ready Reports
Our reports are scoped for council submissions throughout Sydney and prepared with local tree preservation requirements in mind.
Fully Insured
We maintain professional insurance settings appropriate for arboricultural consulting and property assessment work.
Clear Turnaround
Report timing is confirmed before work begins, with standard reports commonly delivered within 3-5 business days after inspection.
Transparent Pricing
Fixed-price quotes and clear report scopes help you understand the cost, deliverables, and next steps before engaging us.
Tree Impact Assessments Sydney - FAQs
Common questions about tree impact assessments in Sydney
Related Services
Related report and assessment services that may support the same tree impact assessments pathway
Tree Protection Plans
Tree protection plans with TPZ specifications, construction monitoring guidance, and project arborist support to preserve retained trees during development.
Council Tree Reports
Professional arborist reports for council applications, tree removal permits, and planning approvals throughout Sydney. Level 5 qualified assessments prepared for council documentation requirements.
Tree Management Plans
Strategic tree management plans for long-term tree care, maintenance scheduling, and urban forest management across Sydney properties.
Need Tree Impact Assessments in Sydney?
Professional tree impact assessments by AQF Level 5 qualified arborists. Council-ready documentation with report timing confirmed before work begins.