Currency Creek Arboretum Eucalypt Research

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Dean Nicolle is a consultant arborist, botanist and ecologist based in Adelaide (South Australia), specialising in the the arboricultural assessment of trees, and particularly in all arboricultural, biological and ecological aspects relating to the eucalypts.

Arboricultural consultancy
Arboricultural (tree) assessments and reports
Arboricultural (tree) audits and reports
Expert witness statements
Species/specimen identification
Species selection
Currency Creek Arboretum tours and consultancy

Arboricultural consultancy (tree assessments and reports)
Dean Nicolle has produced tree assessment reports for over 10,000 individual trees in the Adelaide metropolitan area since 2002. He has provided advice to most metropolitan and regional councils in South Australia on a non-exclusive basis, and can therefore provide advice to all government departments, non-government institutions, and companies, as well as private individuals.

- Arboricultural (tree) assessments and reports
- Development Impact Reports
Detailed arboricultural assessment suitable for single trees, or small numbers of trees included within a single assessment and report. Reports incluse:
  • Background (if relevant)
  • Species (scientific and common name)
  • Legal status of the tree ('Regulated', 'Significant' or not controlled)
  • Health and Longevity
  • Risk assessment
  • Assessment of the tree against the relevant Desired Outcomes and Performance Outcomes of the Regulated and Significant Tree Overlay of the Planning & Design Code.
  • Recommendations
Arboricultural assessment and report fees are based on a rate of $220 per hour (all figures include GST). The below cost estimates are based on single trees. Assessments and reports for multiple trees on a single site can be assessed for significantly less per tree.

On-site assessment and verbal report$330
Written email summary+ $220
Formal written report (non-development)+ $770
Formal written report (Development Impact Report)+ $990

- Arboricultural (tree) audits and reports
Suitable for larger numbers of trees included in a single assessment and report, such as broad-scale developments, schools, councils and large allotments. An arboricultural audit involves the assessment of the trees and a report explaining and summarising the data and providing recommendations. A layered PDF map may also be provided to assist in management and decision-making regarding audited trees. An arboricultural audit will usually include the following data for each tree:
  • Tree location and identification (labelled on a pre-existing survey plan or aerial image)
  • Species identification (scientific and common name)
  • Legal status of the tree, as defined by the Planning, Development and Infrastructure Act 2016 and the Planning, Development and Infrastructure (General) Regulations 2017
  • Estimated tree age (in years)
  • Tree origin (remnant, planted, self-seeded weed, etc.)
  • Projected further life expectancy
  • General tree structure
  • Risk to personal safety
  • Biodiversity value
  • Landscape value
  • Retention value
  • Recommended actions
  • Structural Root Zone using AS 4970 (development sites only)
  • Tree Protection Zone using AS 4970, including all associated data used to calculate an appropriate TPZ (development sites only)
  • High Use Setback (development sites only)
Arboricultural (tree) auditing and reporting fees are calculated using a base rate of $1760 plus a per-tree rate of (all figures include GST):
  • For non-development sites:
  • <50 trees$56 per tree
    50 to 500 trees$52 per tree
    >500 trees$48 per tree
  • For development sites (including Structural Root Zones, Tree Protection Zones and High Use Setbacks):
  • <50 trees$70 per tree
    50 to 500 trees$64 per tree
    >500 trees$58 per tree
Expert witness statements
Dean Nicolle has provided verbal and written expert witness statements for the Environment, Resources and Development Court (ERD) for tree-related matters on numerous occasions. Dean Nicolle has also provided expert advice (both verbal and written) on tree-related matters to the District Court of South Australia, the Supreme Court of South Australia and the Supreme Court of Victoria.
Expert witness fees are based on a rate of $880 per half-day or $1540 per full-day (inc. GST). Interstate and overseas consultancy will also incur travel costs.

Species/specimen identification
Within the eucalypts, locally indigenous and exotic specimens from anywhere in Australia or worldwide can be identified. Specimens can be identified from digital images (less reliable but rapid identification), pressed and dried specimens, and live plants in-situ (most reliable but less rapid identification).
Identification fees are based on a rate of $220 per hour (inc. GST). Rates can also be negotiated on a per-image, per-specimen or per-tree basis. One-off identifications and small numbers of identifications may not be charged.

Species selection
Species selections can be provided for plants for a variety of sites in the greater Adelaide area and southern Australia more generally. Sites that may require species selections include private and public gardens, revegetation sites, parks, streets, and natural landscapes.
Species selection fees are based on a rate of $220 per hour (inc. GST).

Currency Creek Arboretum tours and consultancy
Dean Nicolle can lead walk-and-talk groups or individual tours of the arboretum, which can focus on the group or individualís interests and/or requirements. Visit the page of Currency Creek Arboretum for more details.
Currency Creek Arboretum tour and consultancy fees are $1000 for a half-day tour (any number of people).
Note that free biannual open days occur.

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