Tree Risk Assessment Reports
ISA TRAQ methodology risk assessments for councils, schools, churches, golf courses, and private land managers with ongoing maintenance obligations.
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Melbourne & Regional Victoria
Professional Tree Reports for Melbourne & Victoria
Expert arboricultural consulting from Graeme Lewis — AQF Level 5 Arborist with over 40 years of experience. Accepted by Melbourne councils, VCAT, and Victorian courts.
Graeme Lewis — AQF Level 5 Arborist
40+ years industry experience • Melbourne to regional Victoria
What We Do
Arboricultural Consulting Services
Professional reports and consulting for homeowners, architects, town planners, councils, engineers, legal practitioners, and government bodies throughout Melbourne and Victoria.
Development Impact Assessment
AS4970-2009 compliant reports evaluating development impacts on trees — required for most Melbourne council planning permits involving works near trees.
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Detailed protection and management protocols for trees before, during and after construction — compliant with AS4970-2009 and accepted by Melbourne councils.
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Independent assessment where trees are alleged to have caused property damage — multi-disciplinary approach with root mapping, structural and geotechnical coordination.
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Early-stage guidance for architects and building designers — establishing tree retention values and minimum construction offsets before design is finalised.
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Vegetation management assessments for bushfire-prone properties — establishing defensible space requirements in compliance with planning overlays.
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Pre-planting inspection of nursery stock for health and structural formation — often required under council subdivision permits.
Learn moreExpert Witness Evidence
Expert witness testimony and reports for VCAT, Planning Panels Victoria, and the County Court of Victoria — prepared in accordance with the Expert Witness Code of Conduct.
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40+
Years Experience
About the Consultant
Graeme Lewis — AQF Level 5 Arborist
Graeme Lewis is the principal arboricultural consultant at Stem Arboriculture, based on Victoria's Bellarine Peninsula. With over 40 years of hands-on and consulting experience, Graeme brings a deep understanding of tree biology, structural assessment, and Victorian planning requirements to every project.
His reports are accepted by all Melbourne metropolitan councils and have been relied upon in proceedings before VCAT, Planning Panels Victoria, and the County Court of Victoria.
- AQF Level 5 Qualification in Arboriculture — the highest vocational qualification in the Australian industry
- Over 40 years of arboricultural consulting experience
- Accredited expert witness — VCAT, Planning Panels Victoria, County Court
- Reports compliant with AS4970-2009 and ISA TRAQ methodology
- Serving architects, town planners, councils, engineers, lawyers & homeowners
Coverage
Service Areas
Based on Victoria's Bellarine Peninsula, Stem Arboriculture serves Melbourne and a wide corridor of regional Victoria.
Melbourne — Primary Service Area
All metropolitan Melbourne councils, including inner city, eastern, western, northern, and southern suburbs.
Melbourne tree reports →Geelong & Surrounds
City of Greater Geelong, Leopold, Lara, Clifton Springs, Ocean Grove, and surrounds.
View area →Bellarine Peninsula
Barwon Heads, Ocean Grove, Queenscliff, Portarlington, Drysdale, and surrounds.
View area →Mornington Peninsula
Frankston, Mornington, Mount Martha, Rosebud, Rye, Sorrento, and surrounds.
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Get Started
Request an Obligation-Free Quote
Whether you need a tree report for a planning application, a risk assessment, or advice on a complex tree dispute — Graeme Lewis can help. Call during business hours or send an enquiry online.
Mon–Sun 8:00 AM – 8:00 PM • Response within one business day