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Arborist reports and tree risk assessments

Councils, certifiers and insurers often require an independent assessment from a qualified consulting arborist before they'll make a decision about a tree. Marcus Nicholson is an AQF Level 5 consulting arborist, a VALID Tree Risk-Benefit Assessor and a registered QTRA user (#6912) with 15+ years of experience in the industry.

Eucalyptus trunk with smooth peeling bark

Reports we prepare

  • Arborist reports to support a council tree removal or pruning application
  • Arboricultural impact assessments for development applications and CDCs
  • Tree protection plans and site supervision during construction
  • Tree risk assessments using QTRA and VALID methods
  • Tree health and condition assessments
  • Reports for insurers, strata and neighbour disputes

Why the qualification matters

Central Coast Council and Hornsby Shire Council both expect reports from an arborist qualified to at least AQF Level 5. A report from someone without that qualification can be rejected, which costs you time and money. QTRA and VALID are recognised tree risk methods that put a clear, defensible number on the risk a tree poses.

How it works

We inspect the tree on site, take measurements and photos, and assess its health, structure and risk. You get a clear written report, usually within a few working days, written for the people who'll read it. Our guide on arborist report costs and when you need one has more detail.

When to call us

  • Council has asked for an arborist report
  • You're lodging a DA or CDC with trees on or near the site
  • You're worried a tree near the house is unsafe
  • An insurer or strata committee needs an independent opinion
  • You're in a dispute with a neighbour over a tree

Arborist reports across the Coast and Hornsby

We work across the Central Coast and Hornsby Shire, including:

Arborist reports questions

How much does an arborist report cost?

It depends on the number of trees, the type of report and whether it's for a development. A simple single-tree report costs less than an impact assessment for a DA. We quote a fixed fee before we start.

What is QTRA?

Quantified Tree Risk Assessment is a method that estimates the risk of harm from a tree in numbers, so owners and councils can compare it with other everyday risks and decide what's reasonable. Marcus is a registered QTRA user, number 6912.

Does an arborist report guarantee council approval?

No. Council makes the decision, but a clear report from a qualified arborist gives them what they need to assess the application properly.

Get a quote for arborist reports

Tell us about the tree and where it is. We'll call you back to book a time to look at it, usually the same or next working day.

Office hours
Mon - Fri07:00 am - 05:00 pm
Sat07:00 am - 12:00 pm
SunClosed (24/7 emergencies)

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