A total of 6 trees were assessed at Cooroy Noosa Rd, Tewantin QLD 4565 on 4 April 2025. The property is an established urban residential allotment with a mixed canopy of native and exotic species. Trees were assessed using the Visual Tree Assessment (VTA) methodology and the Quantified Tree Risk Assessment (QTRA) system.

In addition to individual tree assessments, five identified canopy areas across the course were assessed using the same QTRA methodology. Area assessments address patches of multi-stem scrub or tree belts where individual tree assessment is impractical due to stem density.

Tree Risk QTRA has been engaged by the club to undertake a Tree Risk (QTRA) and Works Priority Assessment of eight trees at the golf course facility. The assessment focuses on trees adjacent to tees, greens, fairways and cart paths where target occupancy is elevated. The assessment was carried out on 4 April 2025 by a QTRA-certified practitioner.

The assessment was carried out on 4 April 2025 by a QTRA-certified practitioner. All trees were assessed individually using the Visual Tree Assessment (VTA) methodology, with risk quantified using the Quantified Tree Risk Assessment (QTRA) system in accordance with QTRA Ltd (2015).

Subject trees were inspected using the Visual Tree Assessment (VTA) methodology developed by Mattheck and Breloer (1998). Each tree was assessed for species, age class, health, structure, defects, proximity to targets, and arboricultural value. A Quantified Tree Risk Assessment (QTRA) was completed for each tree, producing a Risk of Harm (RoH) value expressed as a probability comparable to accepted tolerability thresholds.

The course supports an impressive population of mature native trees, including two veteran Moreton Bay Fig (Ficus macrophylla) specimens of outstanding arboricultural and heritage significance. The tree population is predominantly in good to fair health. One Swamp Oak (Casuarina glauca) adjacent to the 7th tee presents advanced basal decay and is assessed as Unacceptable risk. One Paperbark (Melaleuca quinquenervia) near the 3rd tee is in poor condition and assessed as Tolerable risk.

Target occupancy across the course is variable — highest at tees, greens and cart paths, lowest in rough and boundary areas. This has been factored into the QTRA risk calculations for each tree.

Based upon the assessment of 8 trees, one tree (Tree #7, Casuarina glauca) presents an Unacceptable risk and removal is recommended immediately — the 7th tee should be cordoned until works are completed. One tree (Tree #4, Melaleuca quinquenervia) presents Tolerable risk and requires moderate priority works within 3 months. Five trees require low priority works and two require no works at this time. The two veteran Moreton Bay Figs are of outstanding significance and must be actively protected.

All pruning works should be undertaken by a qualified arborist in accordance with AS 4373-2007 Pruning of Amenity Trees. All retained trees should be re-inspected within a two-year timeframe.

The following table summarises the assessment findings and recommended works for all trees assessed. Works are prioritised as High (immediate action), Moderate (within 3 months), Low (within 12 months) or None (no works required at this time).

Quantified Tree Risk Assessment (QTRA) is an internationally recognised tree risk management framework that applies established risk management principles to tree safety. The assessment produces a Risk of Harm (RoH) value — a numerical probability comparable to everyday risk benchmarks.

The following section presents QTRA risk assessments for identified tree canopy areas across the golf course. Each area has been assessed using the same Visual Tree Assessment (VTA) methodology and QTRA framework applied to individual trees, with target occupancy determined by the proximity of each area to players, cart paths and course infrastructure.