Attachment 4 - Terrestrial Ecology Report_RACV_2022 June

3.4 Tree Schedule
A detailed tree survey has been completed by CadCon Surveying & Town Planning. Tree identification
and assessment has been completed in conjunction with local arborist Matt Duncan (Consult Arborist).

A summary of trees recorded in the survey area (which includes the subject land and adjacent Council
Reserve) is provided below, with the tree locations and the schedule provided in a series of plans
(prepared by Aspect Architects) and table included in ATTACHMENT D. Refer also detailed arborist
report for tree analysis and assessment.

     •    375 trees 19 in total survey (includes within the Council Reserve)
     •    240 trees would be considered koala habitat trees (including eucalypts and paperbarks)
     •    <150 are eucalypts
     •    180 of these trees are infested by the invasive Frangipani (and other) vine

As detailed in the arborist report (Consult Arborist) trees were assessed on their retention value as
defined below 20. For this assessment, the consideration of native species, koala and habitat value
and infestation by vines was also considered.
 Tree Retention Value:


 This retention value comes from the Institute of Australian Consulting Arborists (IACA), 2010, IACA Significance of a
 Tree, Assessment Rating System (STARS), Institute of Australian Consulting Arboriculturists, Australia, www.iaca.org.au
 - http://www.iaca.org.au/home/index.php/publications/71-stars

 The process uses the Retention Value – Priority Matrix by assessing the Tree Significance Assessment Criteria and
 crossing it with the Estimated Life Expectancy to determine the following ratings:
 High:             Priority for Retention
                   These trees are considered important for retention and should be retained and protected. Design
                   modification or relocation of building/s should be considered to accommodate the setbacks as
                   prescribed by the Australian Standard AS4970 Protection of trees on development sites. Tree sensitive
                   construction measures must be implemented e.g. pier and beam etc. if works are to proceed within
                   the Tree Protection Zone.
 Medium:           Consider for Retention
                   These trees may be retained and protected. These are considered less critical; however, their retention
                   should remain priority with removal considered only if adversely affecting the proposed building /
                   works and all other alternatives have been considered and exhausted.
 Low:              Consider for Removal
                   These trees are not considered important for retention, nor require special works or design
                   modification to be implemented for their retention.
 Remove:           Priority for Removal
                   These trees are considered hazardous, or in irreversible decline, or weeds and should be removed
                   irrespective of development.



In summary (refer details in Arborist Consult report), approximately:

     •    200 trees are identified as being “high retention value”
     •    <140 trees are identified as being “high retention value”
     •    >30 trees are identified as being “low retention value”




19 Survey did not include non-native species, e.g. Umbrella Tree
20 Consult Arborist Report 2022.




Terrestrial Ecology Assessment – RACV Noosa                                                                                19