Council archive · source document
Appendix D - Bushfire Assessment · RAL26/0026
BUSHFIRE HAZARD ASSESSMENT
& MANAGEMENT PLAN
PROPOSED RURAL-RESIDENTIAL SUBDIVISION
LOT 5 ON RP136445
380 MCKINNON DRIVE, COOROIBAH
Ph: 0428 221 983 / Email: [email protected]
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TABLE OF CONTENTS
1.0 INTRODUCTION......................................................................................1
1.1 PURPOSE......................................................................................................................................1
1.2 ASSESSMENT AREA .......................................................................................................................1
1.3 STATE PLANNING POLICY BUSHFIRE PRONE AREA OVERLAY ..............................................................3
1.4 NOOSA COUNCIL BUSHFIRE OVERLAY..............................................................................................4
1.5 SURROUNDING LANDSCAPE ...........................................................................................................5
1.6 TOPOGRAPHY ...............................................................................................................................6
1.7 VEGETATION ................................................................................................................................7
1.7.1 Open Eucalypt Forest ..................................................................................................8
1.7.2 Open Melaleuca Forest ................................................................................................9
1.7.3 Mowed/grazed areas with low density woody vegetation........................................ 10
2.0 BUSHFIRE HAZARD ASSESSMENT ..........................................................11
2.1 STATE ASSESSMENT METHODOLOGY ............................................................................................ 11
2.1.1 General ....................................................................................................................... 11
2.1.2 Vegetation Hazard Classes ....................................................................................... 11
2.1.3 Maximum Landscape Slope ...................................................................................... 12
2.1.4 Fire Danger Index ...................................................................................................... 12
3.0 LOCAL HAZARD MAP ............................................................................13
3.1 GENERAL .................................................................................................................................... 13
3.2 PATCH AND CORRIDOR FILTERING ................................................................................................ 13
3.3 CALCULATION OF POTENTIAL BUSHFIRE INTENSITY ........................................................................ 14
4.0 BUSHFIRE RISK ASSESSMENT ................................................................18
4.1 GENERAL .................................................................................................................................... 18
4.2 SEASONAL FIRE WEATHER – SOUTH-EAST QUEENSLAND ................................................................. 18
4.3 RISK FROM IDENTIFIED HAZARDOUS VEGETATION ......................................................................... 19
5.0 BUSHFIRE IMPACT REDUCTION .............................................................21
5.1 GENERAL .................................................................................................................................... 21
5.2 SETBACKS................................................................................................................................... 21
5.2.1 Asset Protection Zone Design .................................................................................. 22
5.3 FIREBREAKS ................................................................................................................................ 23
5.4 WATER SUPPLY ........................................................................................................................... 23
5.5 VEHICULAR ACCESS ..................................................................................................................... 23
6.0 NOOSA PLAN 2020 – BUSHFIRE HAZARD OVERLAY CODE .......................24
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7.0 CONCLUSION .......................................................................................31
8.0 REFERENCES.........................................................................................32
Disclaimer
This assessment has been prepared by Equilibrium Ecology Pty Ltd and may only be used and relied upon for the purposes set
out in this report. No responsibility is held to any person other than the Client for any decision or action arising from or in
connection with this report. All opinions and conclusions are based on assumptions detailed in this report and no responsibility
is held for any error or omission arising from these assumptions being incorrect.
This assessment has been based on site conditions present at the time of preparation and are relevant to the nature of the
development proposed. The assessment relies on current bushfire hazard assessment methodologies as described in this
report. These methodologies may not consider catastrophic bushfire events which may occur from time to time. By their
nature, bushfires are unpredictable, and no guarantee can be provided or should be assumed that the area will not be affected
by bushfire at some time. Landowners/occupants should be aware of the unpredictable nature of bushfire and potential
consequences of such events and should be responsible for their property by being prepared for extreme events accordingly.
To the extent permitted by law, Equilibrium Ecology Pty Ltd excludes all liability to any person for any consequences, including
but not limited to all losses, damages, costs, expenses, and any other compensation, arising directly or indirectly, from using
this report (in part or whole) and any information or material contained in it.
Document Issue
Version Number Date Authorised for Issue
1 21 August 2026 N. Willis (B. Sc., Dip. CLM., mAABR,
mFPAA, mEIANZ) – Director/Principal
Ecologist
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1.0 INTRODUCTION
1.1 PURPOSE
This Bushfire Hazard Assessment and Management Plan has been prepared to assess the degree of
bushfire hazard and associated risk acting on Lot 5 on RP136445 located at 380 Mckinnon Drive,
Cooroibah (herein referred to as ‘the site’). The applicant is seeking a reconfiguration of a lot development
permit from Noosa Council for a rural residential subdivision (1 Lot into 2 Lots). The proposed Plan of
Development has been provided as Appendix A.
This assessment has been undertaken to determine the specific extent of bushfire hazard acting on the
proposed development and the bushfire mitigation measures required to safely undertake the
development. This report provides a bushfire management plan including requirements for asset
protection zones, fuel management, access and evacuation requirements, and emergency response
measures. Recommendations made within the bushfire management plan are consistent with legislative
requirements to reduce the risk to life and property as a result of a bushfire event.
The following documents prescribe the bushfire assessment measures utilised in Queensland and have
been drawn upon in the preparation of this report:
Natural Hazards, Risk and Resilience –– Bushfire State Planning Policy – state interest guidance
material (The Department of Infrastructure, Local Government and Planning, 2019) – referred to
herein as SPP Bushfire 2019.
Bushfire Resilient Communities. Technical Reference Guide for the State Planning Policy State
Interest ‘Natural Hazards, Risk and Resilience - Bushfire’ (Queensland Fire and Emergency Services
(QFES), 2019) – referred to herein as BRC.
1.2 ASSESSMENT AREA
BRC defines the assessment area as the development footprint and all land within 150m of the extent of
the development footprint. In this instance, the existing dwelling is proposed to be retained within Lot 1
within the northern site extent. New development is only proposed within proposed Lot 2. Therefore, the
assessment has been limited to Lot 2 and all land within 150m of the development footprint.
The overall site is approximately 3.94ha and currently contains an existing dwelling and associated
outbuildings in the northern extent. The majority of the site has historically been cleared of vegetation
and utilised for horse grazing. The vegetation within the site is characterised by low grass with sparse
regrowth of woody vegetation. A tributary to Cooroibah Creek flows through the centre of the site and
has been impounded to form a small dam of approximately 1,300m2. Regrowth vegetation occurs along
the waterway, particularly to the east of the dam. Rural-residential allotments with similar vegetated
conditions are located to the east and west of the site. Extensive areas of remnant native vegetation are
located within Tewantin National Park immediately to the south of the site (across Mckinnon Drive). Plate
1 depicts the existing site conditions within the assessment area.
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Plate 1: Assessment Area (Image Source: Nearmap)
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1.3 STATE PLANNING POLICY BUSHFIRE PRONE AREA OVERLAY
A bushfire prone area is land that is potentially affected by significant bushfires, including vegetation likely
to support a significant bushfire and adjacent land that could be subject to impacts from a significant
bushfire (i.e., potential impact buffer). The State Planning Policy Bushfire Prone Area Overlay depicts a
High Potential Bushfire Intensity area within the centre of the site (refer to Plate 2). A Potential Impact
Buffer extends 100m from the mapped High Potential Bushfire Intensity areas and encompasses the
development area. A High Potential Bushfire Intensity area is also mapped to the east and west of the
site, whilst a Very High Potential Bushfire Intensity area is located to the south.
Plate 2: State Planning Policy Bushfire Hazard Mapping (Source: SPP Mapping)
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1.4 NOOSA COUNCIL BUSHFIRE OVERLAY
The Noosa Plan 2020 Bushfire Overlay has generally incorporated the SPP mapping as detailed above
(refer to Plate 3).
Plate 3: Noosa Plan 2020 Bushfire Hazard Overlay (Source: Noosa Interactive Mapping)
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1.5 SURROUNDING LANDSCAPE
The site is located within a vegetated rural and rural-residential landscape. An extensive area of
potentially hazardous vegetation is located within Tewantin National Park to the south of the site. Semi-
vegetated rural-residential allotments containing a mosaic of vegetation interspersed with cleared areas
are present to the north, west and east of the site. Vegetation within these allotments is generally
restricted to a narrow band of trees adjoining watercourses and dams. Predominantly vegetated
allotments occur further to the west of the site. The landscape surrounding the site is depicted in Plate 4.
Plate 4: Surrounding Landscape (Source: Queensland Globe)
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1.6 TOPOGRAPHY
The site is located on low-lying land that descends to the waterway in the centre of the site. The site is
located on gentle slopes, with the development area located on a slight northerly to north-easterly aspect.
Site elevation ranges between 12m AHD and 6m AHD. Vegetation within and adjoining the site is generally
located on gentle slopes of approximately 3 degrees, across slope, or slightly upslope of the site. Plate 5
depicts topography conditions surrounding the site.
Plate 5: Topography/Hill shade (Source: QLD Globe)
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1.7 VEGETATION
A site assessment was undertaken in August 2026. Four dominant vegetation types occur in proximity to
the proposed development area:
Open Eucalypt Forest
Open Melaleuca Forest
Mowed/grazed areas with low density woody vegetation
Waterbodies and areas of very low vegetation cover
These vegetation units are described in detail below.
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1.7.1 Open Eucalypt Forest
Portions of vegetation within Tewantin National Park and the private allotments within the south-west of
the assessment area are dominated by an Open Eucalypt forest with grassy understorey. The canopy
within these areas has attained a height of approximately 25m, with crown cover of approximately 60-
70%. The canopy is dominated by Eucalyptus racemosa (scribbly gum), with E. acmenoides (white
mahogany), Syncarpia glomulifera (turpentine) and Lophostemon suaveolens (swamp box) in lower lying
areas. The mid-storey is mid-dense and contains regenerating canopy species as well as a range of Acacias,
and shrub/small tree species such as Allocasuarina littoralis (black she-oak), Elaeocarpus reticulatus
(blueberry ash), Petalostigma triloculare (quinine) and Sannantha bidwillii (twiggy myrtle). The
understorey is dominated by native grasses and ferns such as Pteridium esculentum (bracken fern). The
vegetation community is analogous with Vegetation Hazard Class 9.1 (VHC 9.1) Moist to dry Eucalypt open
forests on coastal lowlands and ranges (BRC). Plate 6 depicts typical conditions within the Eucalypt forest
within the assessment area.
Plate 6: Open Eucalypt forest
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1.7.2 Open Melaleuca Forest
The landscape to the north and south of the development area contains an open forest dominated by
Melaleuca quinquenervia (broad-leaved tea tree). The canopy has attained a height of approximately
20m, with crown cover of approximately 60-70%. The canopy is dominated almost entirely by M.
quinquenervia however also contains the exotic species Pinus elliottii (slash pine), Eucalyptus robusta
(swamp mahogany), and Lophostemon suaveolens (swamp box). The mid-storey is mid-dense and
contains regenerating canopy species. The understorey is dominated by native grasses, sedges and herbs.
The vegetation community is analogous with Vegetation Hazard Class 22.1 (VHC 22.1) Melaleuca open
forests on seasonally inundated lowland coastal swamps (BRC). Plate 7 depicts typical conditions within
the Melaleuca forest within the assessment area.
Plate 7: Open Melaleuca forest
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1.7.3 Mowed/grazed areas with low density woody vegetation
The majority of the development area and adjoining allotments to the east and west consists of a low
density of trees over short, cropped grass which is maintained by regular mowing or grazing by horses.
Canopy tree species include Melaleuca quinquenervia (broad-leaved tea tree) on lower lying areas and
Eucalypts on more elevated areas. This vegetation type includes areas of mowed grass and established
lawns and gardens with low density mature trees surrounding existing houses. The majority of the surface
and near-surface fuel within this vegetation type is removed and regularly mowed, resulting in a
discontinuous fuel structure. The vegetation community is analogous with Vegetation Hazard Class 39.2
(VHC 39.2) Low to moderate tree cover in built up areas (BRC). Plate 8 depicts typical conditions within
the areas of managed fuel loads within the assessment area.
Plate 8: Mowed/grazed areas with low density woody vegetation
The only other assessable vegetation type present within the 150m assessment area consists of
waterbodies (dams) and the built road formation and maintained verges of Mckinnon Drive. This
vegetation type is analogous with VHC 43.6 – Water bodies or very low vegetation cover (BRC).
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2.0 BUSHFIRE HAZARD ASSESSMENT
2.1 STATE ASSESSMENT METHODOLOGY
2.1.1 General
The State Planning Policy requires a site-specific bushfire hazard assessment to be undertaken when a
development site is located within a mapped Bushfire Hazard Area. Chapter 2, Part 1, Section 8, Item 4(a)
of the Planning Act 2016 states that where there is an inconsistency between a State Planning Policy and
a local government planning instrument, a State Planning policy applies instead of a local planning
instrument. The SPP mapping is therefore used as the trigger for assessment against Council’s Bushfire
Overlay. Furthermore, the site-specific hazard mapping required by the Planning Scheme is to be prepared
consistent with the methodology adopted to prepare the SPP mapping.
The State government have described the methodology used to prepare the SPP mapping in the BRC. BRC
states that although state-wide bushfire prone area mapping is regularly updated, land use and vegetation
cover (key contributors to bushfire hazard) are subject to change, particularly regarding the extent of
hazardous vegetation. Accordingly, the first step of a bushfire hazard assessment is to undertake a
reliability assessment to determine whether the site’s observed characteristics are consistent with the
inputs used to create the mapping, and the mapping outputs. A reliability assessment is therefore
undertaken for the site and all land within 150 metres of the proposed development.
The methodology underpinning the bushfire hazard assessment process consists of three stages:
1. An assessment to verify the reliability of existing Bushfire Prone Area (BPA) mapping over the site.
2. A hazard assessment involving field investigations to ground-truth the accuracy of the BPA
mapping for the site. The hazard assessment area must include the development area and all land
within 150 metres of the development footprint.
3. Using the results of the site-specific assessment, the setback width needed to achieve the
prescribed radiant heat flux levels is calculated.
Where the State Bushfire Prone Area mapping is observed to incorrectly depict the bushfire hazard acting
on a particular site (e.g., where there has been changes in land use or vegetation cover within the
assessment area), the process enables an applicant to create a local-scale bushfire prone area map based
on the results of the site investigation and to apply modified input variables that reflect changes that have
occurred over time. The preparation of a Local Hazard Area Map has been undertaken for the site in
accordance with the methodology described in the above referenced documents. The input parameters
used to determine the bushfire hazard acting on the site are detailed in the sections below.
2.1.2 Vegetation Hazard Classes
The relative hazard of various vegetation types is a result of the amount of fuel available to a bushfire.
The rate at which fuel loads accumulate and dry out varies for different types of vegetation. Fuel is
generally prevented from drying out in dense vegetation communities (such as wet sclerophyll vegetation)
however, can be susceptible to very destructive bushfires when exposed to extreme conditions.
Alternatively, some vegetation types more commonly expose fuels to drying and therefore are frequently
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available for burning. Frequent bushfires can result in the development of bushfire-tolerant grassy
woodlands or grasslands, and consequently less destructive bushfire behaviour.
Fuel loads need to be determined when preparing a bushfire hazard assessment. BRC refers to the process
for identifying, classifying and mapping vegetation hazard classes as a Vegetation Hazard Class
Assessment. In accordance with the methodology outlined in Section 6 of BRC, the following Vegetation
Hazard Classes (VHC) were identified within the assessment area:
VHC 9.1 – Moist to dry Eucalypt open forests on coastal lowlands and ranges – which is attributed
a combined surface/near-surface fuel of 21t/ha and a total potential fuel load of 24.2t/ha
VHC 22.1 - Melaleuca open forests on seasonally inundated lowland coastal swamps – which is
attributed a combined surface/near-surface fuel of 23.4t/ha and a total potential fuel load of
28.4t/ha
VHC 39.2 – Low to moderate tree cover in built up areas – which is attributed a combined
surface/near-surface fuel of 5t/ha and a total potential fuel load of 8t/ha
VHC 43.6 – Water bodies or very low vegetation cover – which is attributed a combined
surface/near-surface fuel of 0t/ha and a total potential fuel load of 0t/ha
2.1.3 Maximum Landscape Slope
The slope of the land is a major determinant of fire behaviour. Fire burns faster as it travels up a slope,
via the preheating of unburnt fuels ahead of the fire, increasing the rate of spread and fireline intensity.
Conversely, fires move more slowly as they travel downslope. Fireline intensity (kW/m) is a function of
the rate of spread. As a general rule, the rate of fire spread (and fireline intensity) doubles up a 10-degree
slope and quadruples up a 20-degree slope (BRC).
The site is located on a maximum slope of 3 degrees. The hazardous vegetation influencing the proposed
development is located on flat land, across slope or upslope of the development area. Where the slope
under hazardous vegetation is located across slope, it is considered ‘upslope’ irrespective of the slope of
land between the site and the edge of the hazardous vegetation.
2.1.4 Fire Danger Index
The Fire Danger Index (FDI) provides an annual accumulated index of fire weather severity (i.e., the
potential danger of a bushfire) based on a combination of vegetation dryness, air temperature, wind
speed and humidity. The Queensland Government produce a publicly available data package which
includes selected inputs and information used by the CSIRO in conjunction with the QFES to prepare the
State-wide Bushfire Hazard Area (Bushfire Prone Area) mapping (July 2014). The data includes Fire
Weather Severity (Fire Danger Index - FDI). A review of the dataset for the assessment area indicates that
the site is located within a band of FDI 48.
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3.0 LOCAL HAZARD MAP
3.1 GENERAL
The SPP reference documentation sets out the following methodology for preparing a Local Hazard Area
Map:
Categorising the vegetation within the site in accordance with the vegetation hazard classes
derived from BRC (refer to Figure 1)
Using the patch and corridor filtering process to remove narrow corridors and small patches of
hazardous vegetation (refer to Figure 1)
Subdividing the identified vegetation hazard classes into bushfire hazard sub-units based on
slope differences and vegetation hazard classes (refer to Figure 2)
Assigning SPP Potential Bushfire Intensity classes to the sub-units (refer to Figure 2)
Application of 100m Potential Impact Buffers to the amended sub-units to derive an overall Local
Hazard Map (refer to Figure 3)
3.2 PATCH AND CORRIDOR FILTERING
The bushfire hazard assessment process adapts the method used to generate the SPP Bushfire mapping,
described in Leonard et. al. (2014), with further refinement to allow for the downgrade and/or filtering of
small patches and narrow corridors where needed in accordance with contemporary mapping rules
outlined in the BRC and Leonard and Opie (2017).
Section 4.2.6 of BRC outlines the patch and corridor filtering process to modify potential intensity of small
patches and corridors (based on Leonard et. al. 2017). The process involves the following three stages:
Remove small, isolated patches of a single Vegetation Hazard Class less than 1ha if they are
further than 100m from any other continuous fuel greater than 2 hectares in size
Downgrade the intensity of small patches (0.5 to 3 ha). This process downgrades the effective
fuel load of continuous vegetation patches 0.5 to 2ha by 66%, and 2 to 3ha by 50% if they are
completely surrounded by either no fuel or by discontinuous fuel further than 100m from any
other continuous-fuel vegetation patch greater than 2 hectares in size
Removing narrow corridors of vegetation less than 50m wide and less than 0.5ha through a
process of patch erosion and dilation. These small patches are merged with surrounding
vegetation by allocating a patch to the Vegetation Hazard Class that is most common to the patch
boundary.
In this assessment, narrow bands of VHC 22.1 and VHC 9.1 occur which are less than 50m in width and
are surrounded by low hazard VHC 39.2 vegetation or VHC 43.6. BRC states that narrow corridors and
areas of continuous fuel <50 metres in width are not sufficiently wide to support a fully developed flame
front. These areas are less likely to ignite due to their disconnection with fuels that can carry running fire
fronts. If ignited by a point or line ignition, these areas will limit the fire head width and, as a result, the
fireline intensity. The combined effect of lower ignition likelihood and lower intensity is likely to result in
fireline intensity of less than 4,000 kW/m, and this presents a low hazard to land use planning and
development assessment. Therefore, the identified narrow bands of vegetation have been merged into
the adjoining vegetation hazard class for the purposes of the bushfire hazard assessment (refer to Figure
1).
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3.3 CALCULATION OF POTENTIAL BUSHFIRE INTENSITY
The Potential Bushfire Intensity of each identified sub-unit has been calculated by inputting the site-
specific input parameters discussed in Section 2.1 into the FLAMESOL computer model. FLAMESOL is a
Method 2 assessment methodology under AS3959:2018 and uses industry standard bushfire equations
and allows numerous input variables to be adjusted including fuel loads, fire danger index, site slope and
distance to vegetation. Table 1 details the Potential Bushfire Intensity classes and their corresponding
potential fire-line intensity (kW/m) values as prescribed within Leonard et. al. 2017. The FLAMESOL
modelling used to determine the SPP Potential Bushfire Intensity classes has been included as Appendix
B.
Table 1 – Potential Bushfire Intensity Classes
POTENTIAL BUSHFIRE INTENSITY POTENTIAL FIRELINE INTENSITY
Very High >40,000 kW/m
High 20,000-39,999 kW/m
Medium 4,000 – 19,999 kW/m
Low (no hazard) <4,000 kW/m
Figures 1-3 are presented below and have been prepared as per the above referenced methodology.
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BUSHFIRE HAZARD ASSESSMENT 380 MCKINNON DRIVE COOROIBAH FIGURE 1 VEGETATION HAZAR DEVELOPMENT AREA 50m ASSESSMENT BUFFER (ER vic 9.1- open Eucatyer FoREST [0 vic 22.1 - OPEN MELALEUCA FOREST [__] VHc39.2 - Low To MODERATE TREE COVER [7] vic 43.6 - waTERBODIES OR VERY LOW VEGETATION COVER UNIT REMOVED VIA PATCH FILTERING COPYRIGHT © 2026
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| Sub Unit 1 - VHC 9.1 Combined BUSHFIRE HAZARD ASSESSMENT 380 MCKINNON DRIVE COOROIBAH FIGURE 2 HAZARD SUB-UNITS Fire Danger Surface and | Total Fuel Lee retort Potential Index (FDI) | Near Surface Load . . Fuel Load Slope Intensity Intensity 48 21 t/ha 24.2t/ha Odegrees | 15,124kW/m | Medium Sub Unit 2 - VHC 22.1 Combined . . . Fire Danger Surface and | Total Fuel indecone ‘erent ren Index (FDI) | Near Surface Load Slope Intensity Intensity Fuel Load 48 23.4 t/ha 28.4t/ha | Odegrees | 19,777kW/m | Medium Sub Unit 3 - VHC 39.2 Sombined Maximum Potential Potential Fire Danger Surface and | Total Fuel a aa Index (FDI) | Near Surface Load Landscape Fireline Fireline Fuel Load Slope Intensity Intensity 48 4.5 t/ha 5 t/ha 4 degrees 1,464 kw/m Low Sub Unit 4 - VHC 43.6 . Sambined Maximum Potential Potential Fire Danger Surface and | Total Fuel Landscape Fireline Fireline Index (FDI) | Near Surface Load Slope Intensity Intensity Fuel Load 48 Ot/ha Ot/ha O degrees OkW/m Low LEGEND DEVELOPMENT AREA 150m ASSESSMENT BUFFER [0] Mepium PoTENTIAL BUSHFIRE INTENSITY [0 Low Porenriat BUSHFIRE INTENSITY COPYRIGHT © 2026 N
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DEVELOPMENT AREA 150m ASSESSMENT BUFFER LOW POTENTIAL BUSHFIRE INTENSITY SSN) POTENTIAL IMPACT BUFFER i a, Ww = Y n Ww Y Y x Q : WW a L Ss oO 2 a 380 MCKINNON DRIVE [i] mepium poreNTIAL BUSHFIRE INTENSITY COOROIBAH FIGURE 3 LOCAL HAZARD MAP COPYRIGHT © 2026
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4.0 BUSHFIRE RISK ASSESSMENT
4.1 GENERAL
A bushfire risk assessment for the proposed development has been prepared generally in accordance with
the SPP Bushfire (2019) and AS/NZS ISO 31000:2018 – Risk Management Methodology.
The bushfire risk assessment details the likelihood that new built infrastructure to be constructed within
Lot 2 will be exposed to radiant heat impact from the confirmed Medium Potential Bushfire Intensity
areas depicted on Figure 3.
According to AS/NZS ISO 31000:2018, a ‘hazard’ is defined as a source of potential harm or a situation
with a potential to cause loss, whereas a ‘risk’ is the chance of something happening that will have an
impact on objectives measured in terms of consequences and likelihood. The SPP Bushfire (2019) refers
to ‘acceptable risk’, ‘tolerable risk’, and ‘intolerable risk’ which are defined below.
Acceptable risk
A risk that, following an understanding of the likelihood and consequences, is sufficiently low to require
no new treatments or actions to reduce risk further. Individuals and society can live with this risk without
feeling the necessity to reduce the risks any further.
Tolerable risk
A risk that, following an understanding of the likelihood and consequences, is low enough to allow the
exposure to continue, and at the same time high enough to require new treatments or actions to reduce
risk. Society can live with this risk but believe that as much as is reasonably practical should be done to
reduce the risks further.
Intolerable risk
A risk that, following an understanding of the likelihood and consequences, is so high that it requires
actions to avoid or reduce the risk. Individuals and society will not accept this risk, and measures are to
be put in place to reduce risks to at least a tolerable level.
AS/NZS ISO 31000:2018 defines ‘Likelihood’ as the chance that something might happen. Likelihood can
be defined, determined, or measured objectively or subjectively and can be expressed either qualitatively
or quantitatively (using mathematics). The following ‘likelihood’ categories for the probability of the
assessed bushfire attack mechanisms impacting the assessment area have been adopted within this
assessment:
Likely - Will probably occur
Unlikely - Could occur but doubtful
4.2 SEASONAL FIRE WEATHER – SOUTH-EAST QUEENSLAND
South-east Queensland has a subtropical climate with warm humid summers and mild winters and is
subject to influence from monsoonal climate systems and easterly troughs. Seasonality is not pronounced;
however, the ‘wet’ season generally occurs during the December – April period. The fire danger season
usually occurs from spring to mid-summer (August/September to December) with the greatest danger
after a dry winter and spring and when deep, low-pressure systems near Tasmania bring strong, hot and
dry westerly winds to the coastal districts (BOM, 2023). Severe bushfire weather is characterised by days
with high temperatures over 35 degrees, low relative humidity and winds from the north to north-west.
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During the fire season, hot gusty westerly winds of over 30km/h can be expected, with relative humidity
falling below 15%. Typical seasonal fire winds within south-east Queensland originate from the north to
north-west to west to south-west.
The determination of whether a bushfire event is likely or unlikely to impact the site has been based on
the relative position of hazardous vegetation to the site Where hazardous vegetation is located upwind
of the site under dominant seasonal fire winds, the site is considered to be exposed to a likely probability
of impact. Where hazardous vegetation is located downwind of the site under typical seasonal fire winds,
the site is deemed to be exposed to an unlikely probability of impact.
4.3 RISK FROM IDENTIFIED HAZARDOUS VEGETATION
The Local Hazard Map prepared as Figure 3 indicates that the southern extent of the development area is
located within a Potential Impact Buffer and that hazardous vegetation is located to the south of the site.
As depicted in Plate 3, the landscape from the south-west to the south-east of the site contains extensive
areas of vegetation within Tewantin National Park, with the vegetation to the south-west located upwind
of the site under typical seasonal fire winds. Therefore, the site is deemed to be exposed to a likely
probability of bushfire impact at some time in the future.
The separation distance between the development area and the adjoining vegetation is the primary driver
of the assigned level of risk and is determined with consideration to the FLAMESOL modelling output
undertaken in Section 3.3 and presented as Appendix B. The development area is located within a
confirmed low potential bushfire intensity area; however, the southern extent of the proposed new
allotment is located within a Potential Impact Buffer Area associated with offsite vegetation subject to a
Medium Potential Bushfire Intensity.
The proposed building envelope within Lot 2 can be provided with sufficient separation to the identified
hazardous vegetation both internally and via the presence of the dual carriage road formation and
maintained road verges of McKinnon Drive. McKinnon Drive provides an approximately 25m wide
firebreak between the southern allotment boundary and the hazardous vegetation to the south. In
addition, the building envelope within the new allotment is setback 10m from the southern property
boundary. The internal separation is provided by areas of mown grass and a row of screening plants and
contains a discontinuous and low fuel load (VHC 39.2). Sufficient area is available within the proposed
new allotment so that a dedicated 10m wide managed low fuel zone can be maintained around future
built infrastructure. This low fuel zone can be provided wholly within the allotment and is able to be
maintained as a dedicated Asset Protection Zone. The available separation will provide the nominated
building envelope within Lot 2 a setback distance sufficient to achieve less than 29kW/m2 radiant heat
impact and will result in an acceptable level of bushfire risk to the development. Figure 4 depicts the
minimum setback needed to achieve the radiant heat setback requirements as prescribed under
Assessment Benchmark 4 of the SPP.
AUGUST 2026 BUSHFIRE HAZARD ASSESSMENT & MANAGEMENT PLAN Page: 19
380 MCKINNON DRIVE, COOROIBAH
Page 23
PROPOSED
LOT 1
2.440ha
2.390ha
BUILDING
¢?
?
. *
Rr. 36445
PROPOSED
LOT 2
1.50ha
6
RP136445
BUSHFIRE HAZARD ASSESSMENT
380 MCKINNON DRIVE
COOROIBAH
| FIGURE 4
SETBACKS
LEGEND
DEVELOPMENT AREA
MEDIUM POTENTIAL BUSHFIRE INTENSITY
“y BUILDING ENVELOPE
29 kW/m RADIANT HEAT SETBACK
COPYRIGHT © 2026 |
Page 24
5.0 BUSHFIRE IMPACT REDUCTION
5.1 GENERAL
The bushfire hazard assessment undertaken in Section 2 and the Local Hazard Map prepared in Section 3
concluded that the proposed building envelope within the new allotment is located within a Potential
Impact Buffer associated with a Medium Potential Bushfire Intensity area. As the proposed development
site has been confirmed to be located within a bushfire hazard area, measures are required to be
implemented to mitigate impacts associated with bushfire. The measures nominated will reduce the risk
of bushfire impact to people and property and have been determined with reference to:
Noosa Plan 2020 Bushfire Hazard Overlay Code
Natural Hazards, Risk and Resilience –– Bushfire State Planning Policy – state interest guidance
material (The Department of Infrastructure, Local Government and Planning, 2019)
Bushfire Resilient Communities. Technical Reference Guide for the State Planning Policy State
Interest ‘Natural Hazards, Risk and Resilience - Bushfire’ (Queensland Fire and Emergency
Services, 2019)
5.2 SETBACKS
Bushfire can impact infrastructure via several attack mechanisms: direct flame, radiant heat and ember
attack. Asset Protection Zones (APZ) provide the most strategically valuable defence against direct flame
and radiant heat, and to a lesser extent embers. Plate 9 depicts the general components of an APZ.
Plate 9: Asset Protection Zone (Source: NSW RFS, 2006)
Assessment Benchmark 4 of the State Planning Policy – state interest guidance material requires that
development supports, and does not hinder, disaster management response or recovery capacity or
capabilities. Where reconfiguring a lot creating lots of greater than 2000 square metres, to ensure
emergency access and operational space for firefighters, a development footprint plan must be separated
from the closest edge of the adjacent mapped medium, high or very high potential bushfire intensity area
by a distance that achieves a radiant heat flux level of 29 kilowatt per square metre or less.
Quantitative modelling using FLAMESOL software has been undertaken to identify the setback
requirements to achieve the <29 kW/m² radiant heat flux SPP requirement. The input data used, and the
calculated required cleared setbacks are presented in Table 2 below with the full FLAMESOL transcript
provided as Appendix B (refer to transcript for VHC 9.1 and VHC 22.1).
AUGUST 2026 BUSHFIRE HAZARD ASSESSMENT & MANAGEMENT PLAN Page: 21
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Page 25
Table 2 – Radiant Heat Flux Minimum Setbacks to secure <29kW/m²
Direction Slope Flame width VHC Minimum Setback Requirement
South Across slope/Up slope 100m 9.1 12.1m
South Across slope/Up slope 100m 22.1 13.6m
The building envelope within proposed Lot 2 is provided with a 10m wide setback from the southern
property boundary consisting of low hazard vegetation and land uses to achieve compliance with
Assessment Benchmark 4. This is in addition to the external firebreak of approximately 25m width
provided by Mckinnon Drive. The 10m wide internal setback can be maintained as a low hazard VHC 39.2
vegetation type with low and discontinuous fuel loads. The 10m wide setback is required to be maintained
as a dedicated APZ in order ensure that adequate separation is provided between future infrastructure
and to achieve compliance with Assessment Benchmark 4. The APZ is to be maintained as per the criteria
detailed below.
5.2.1 Asset Protection Zone Design
Landscaping within the 10m wide APZ shall comprise species that are characterised by minimal fuel
generation and is to satisfy Assessment Benchmark 7 of the SPP Bushfire 2019. Assessment Benchmark 7
of the SPP Bushfire 2019 states that where a requirement for an asset protection zone exists, landscaping
treatments are to comprise only low threat vegetation such as grassland managed in a minimal fuel
condition, maintained lawns, vineyards, orchards, cultivated gardens, nature strips and/or windbreaks.
OR
Landscaping management maintains a potential available fuel load which is less than eight tonnes/hectare
in aggregate, and fuel structure which is discontinuous (as per the current land use and vegetation
conditions).
OR
Development includes a bushfire management plan for the maintenance of any identified asset protection
zone, including landscape design and ongoing vegetation management.
To reduce the potential for bushfire impact to the future built infrastructure within Lot 2 as a result of
future landscaping, regrowth and fuel load accumulation within the site, the 10m APZ is to be established
and maintained according to the following criteria:
The APZ is maintained as a low threat zone dominated by a maintained grassy surface cover to a
nominal 100mm height which is regularly mowed to reduce fuel loads and the risk of a grassfire
encroaching toward the building
Any landscaping within the APZ is to satisfy the low threat vegetation criteria prescribed in section
2.2.3.2 of AS3959:2018 and be planted as discrete isolated clumps of low flammability vegetation
aligned parallel to the building to aid in interception of ember and smoke attack and not
perpendicular and in a manner which could transmit fire toward the building. Note that the current
row of screening plants along the southern property boundary already achieves this.
No woody mulch is to be used within 2m of buildings
Landscaping only incorporates locally indigenous, low flammability species and or low density
plantings of suitable open forest /woodland species with low bark shedding characteristics
AUGUST 2026 BUSHFIRE HAZARD ASSESSMENT & MANAGEMENT PLAN Page: 22
380 MCKINNON DRIVE, COOROIBAH
Page 26
Surface fuels and woody regrowth is to be controlled in the APZ to maintain a low fuel load
environment. Roof tops, gutters and other areas of the building are to be regularly inspected, and
debris removed to reduce the risk of spot fires developing during a bushfire event
In accordance with Assessment Benchmark 7 of the SPP Bushfire, the APZ is to be designed to
ensure a potential available fuel load is maintained at less than 8 tonnes/hectare in aggregate and
with a fuel structure that remains discontinuous.
5.3 FIREBREAKS
A risk of fire impact has been identified to the south of the proposed building envelope. The proposed
new allotment is located approximately 25m from hazardous vegetation and is separated by the dual
carriage road formation of McKinnon Drive and associated mowed road verges. In addition, a 10m APZ
consisting of predominantly cleared open space has been recommended to be maintained surrounding
the proposed building envelope. The allotment is located on generally flat land and contains sufficient
area which is cleared of vegetation. The existing condition of the new allotment offers suitable operating
conditions for emergency services, with excellent exposure to the edge of the adjoining forest. As
Mckinnon Drive forms an effective firebreak to the south of the site, it is not necessary to construct formal
trafficable firebreaks within the development area. The development will rely on the other bushfire risk
management measures detailed within this management plan to reduce the bushfire risk to an acceptable
level.
5.4 WATER SUPPLY
The proposed development is connected to a reticulated water supply. The Unitywater Infrastructure
mapping depicts a Water Trunk Main that traverses the site. In compliance with Acceptable Outcome 3.1
of Council’s Bushfire Hazard Overlay Code, the trunk main would deliver a minimum flow and pressure of
10 litres a second at 200kPa for firefighting purposes which assists in reducing the risk of bushfire impact
to the development to an acceptable level.
5.5 VEHICULAR ACCESS
Assessment Benchmark 4 of the SPP Bushfire 2019 states that to facilitate safe evacuation during a
bushfire event, a development footprint plan should be located within 60 metres of the street frontage
and sited to enable a route between the development footprint plan and the street frontage with a
gradient that does not exceed of 12.5 percent. The proposed building envelope within the new allotment
is located approximately 10m from the boundary off Mckinnon Drive. The driveway access would direct
occupants through an area of low hazard vegetation with close connectivity to McKinnon Drive. The site
is on low grade and the allotment is of sufficient size to provide adequate turning space for fire-fighting
appliances. The available access to the proposed building envelope assists in reducing the risk of bushfire
to the development to an acceptable level.
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380 MCKINNON DRIVE, COOROIBAH
Page 27
6.0 NOOSA PLAN 2020 – BUSHFIRE HAZARD OVERLAY CODE
The proposed development is considered assessable development and therefore is assessable against
Table 8.2.3.3 Bushfire Hazard Area of Council’s Part 8.2.3 Bushfire Overlay Code which has been
reproduced as Table 3.
Note - Under Chapter 2, Part 1, Section 8, Item 4(a) of the Planning Act 2016, where there is an
inconsistency between a State planning policy and local government planning instrument, a State planning
policy applies instead of a regional plan or local planning instrument. Therefore, the State Planning Policy
– Natural Hazards, Risk and Resilience assessment benchmarks supersede the outcomes prescribed in the
Council Code where they involve the same elements.
AUGUST 2026 BUSHFIRE HAZARD ASSESSMENT & MANAGEMENT PLAN Page: 24
380 MCKINNON DRIVE, COOROIBAH
Page 28
Table 3 – Table 8.2.3.3 Bushfire Hazard Areas – Part 8 Overlay Code Noosa Plan 2020
PERFORMANCE OUTCOMES ACCEPTABLE OUTCOMES PROPOSED SOLUTION
Safety of people and property
PO1 AO1.1 This Bushfire Hazard Assessment and Management
Development maintains the safety of Development which will materially increase the number Plan has been prepared to maintain the safety of
people and property from the adverse of people living or congregating on premises, including people and property from the adverse impacts of
impacts of bushfire. reconfiguring a lot, is not located within a medium or bushfire.
high bushfire hazard area.
AO1.1 – The proposed building envelope is located
outside of the mapped medium bushfire hazard area as
AO1.2
depicted on the Local Hazard Map (refer to Figure 3).
Development maximises setbacks from hazardous
vegetation to achieve an acceptable risk.
AO1.2 – The proposed new building envelope is to be
provided with a dedicated 10m wide Asset Protection
Editor’s Note —PSP8 Natural Hazards provides
Zone surrounding the building area. Furthermore, the
guidance for assessing bushfire hazard risk and
southern boundary of the proposed new allotment is
preparing a bushfire hazard management plan.
separated approximately 25m from the identified
hazardous vegetation by the presence of Mckinnon
Drive. In this regard, any new built infrastructure would
be provided with a setback far in excess of the
minimum requirements as prescribed under
Assessment Benchmark 4 of the SPP. The available
separation in combination with the recommended 10m
wide APZ achieves an acceptable risk to the
development.
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380 MCKINNON DRIVE, COOROIBAH
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PERFORMANCE OUTCOMES ACCEPTABLE OUTCOMES PROPOSED SOLUTION
Impact on Ecologically Important Areas
PO2 No acceptable outcome provided The existing vegetated condition surrounding the
Bushfire mitigation measures do not proposed building envelope is compliant with the
adversely impact on: requirements for the APZ as detailed in Section 5.2.1.
a) biodiversity values, connectivity and No vegetation clearing or other ecological impacts are
ecosystem functioning; and required to facilitate the bushfire mitigation measures
detailed in this report.
b) the long term physical integrity of
waterways, wetland and areas of native
vegetation.
Water Supply for Fire Fighting Purposes
PO3 AO3.1 Complies with AO3.1. The site is connected to a
Development provides an adequate Premises are connected to the reticulated water supply. reticulated water supply with a minimum flow and
water supply for firefighting purpose pressure of 10 litres a second at 200kPa at all times for
which is reliable, safely located and freely Editor's note—For reconfiguring a lot, water supply firefighting purposes.
accessible. needs to provide for a minimum flow and pressure of
10 litres a second at 200kPa at all times for firefighting
purposes.
OR
AO3.2
Where there is no available reticulated water supply,
the premises has:
a) an accessible dam, swimming pool or water tank
available for firefighting purposes with an onsite water
volume of not less than 5,000 litres; and
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380 MCKINNON DRIVE, COOROIBAH
Page 30
PERFORMANCE OUTCOMES ACCEPTABLE OUTCOMES PROPOSED SOLUTION
b) a water supply outlet pipe 50 millimetres in diameter
fitted with a standard fire brigade fitting connected to
the water supply (other than where the water supply is
in a swimming pool or dam).
Editor’s Note—Water supply capacity for firefighting
purposes is in addition to water supply capacity for
other uses and activities on the premises.
Essential Community Infrastructure
PO4 AO4.1 The proposed development does not involve essential
Essential community infrastructure is able Development involving essential community community infrastructure.
to function effectively during and infrastructure is not located within a medium or high
immediately after bushfire events. bushfire hazard area.
OR
AO4.2
Where located in a medium or high bushfire hazard
area, development involving essential community
infrastructure is designed to function effectively during
and after a bushfire event in accordance with a Bushfire
Hazard Management Plan.
Editor’s Note— PSP8 Natural Hazards provides
guidance for assessing bushfire hazard risk and
preparing a bushfire hazard management plan.
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380 MCKINNON DRIVE, COOROIBAH
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PERFORMANCE OUTCOMES ACCEPTABLE OUTCOMES PROPOSED SOLUTION
Hazardous Material
PO5 AO5 The proposed development does not involve the
Public safety and the environment are not Hazardous materials are not manufactured or stored in manufacture or storage of hazardous materials in bulk.
adversely affected by the impacts of bulk in a bushfire hazard area.
bushfire on hazardous materials
manufacturing or storing in bulk.
Access and Evacuation Routes
PO6 AO6.1 N/A – No new roads are proposed. The proposed
Roads provide for easy and safe The road layout provides for through-roads and avoids building envelope is located approximately 10m from
evacuation of residents of premises and cul-de-sacs and dead-end roads. the road frontage. The site is on low grade and the
access by emergency services. OR allotment is of sufficient size to provide adequate
AO6.2 turning space for fire-fighting appliances.
The development has a perimeter road reserve with a
minimum width of 20 metres and maximum gradient of
12.5%.
OR
AO6.3
Cul-de-sacs or no-through roads are provided with fire
trails or access easements, which are capable of being
navigated by conventional vehicles and which link to
through roads.
AO6.4
Safe access and egress is available at all times to all of
the development for emergency vehicles and
personnel.
AO6.5
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380 MCKINNON DRIVE, COOROIBAH
Page 32
PERFORMANCE OUTCOMES ACCEPTABLE OUTCOMES PROPOSED SOLUTION
Where an emergency access point is required, it
complies with the relevant works codes and PSP6
Engineering Design Standards.
Lot design
PO7 AO7 The building envelope has been located within the
Lot design and building siting minimises Each residential lot: lowest hazard area and has been provided with
bushfire hazard risk to people and a) includes a building envelope, identified on a plan of sufficient separation to confirmed hazardous
property. subdivision; vegetation to secure a likely BAL construction standard
under AS3959 which is lower than BAL 29.
b) is of sufficient size and shape to allow for efficient
emergency access to buildings for firefighting
appliances (e.g. by avoiding battle-axe/hatchet lots and
long narrow lots with long access driveways to
buildings);
c) where more than 2500m², achieves setbacks from
hazardous vegetation in line with Bushfire Attack Level
29 requirements as per AS3959; and
d) is designed so that buildings and structures are sited
in locations of lowest hazard within the lot and
elements of the development least susceptible to fire
are closest to the fire hazard.
Firebreaks and fire access tracks
A08.2 – No specific fire breaks are proposed to be
PO8 AO8.1
constructed. It is recommended that the building
Firebreaks and fire access tracks provide: Where development involves the creation of a new
envelope is provided with a minimum 10m dedicated
road and lots, a firebreak is provided by providing a
APZ. The allotment is located on flat land has sufficient
cleared road reserve not less than 20 metres wide and
a) adequate access for firefighting and existing open space to offer suitable operating
maximum gradient of 12.5% around the perimeter of
other emergency vehicles; and conditions for QFD with excellent exposure to the
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380 MCKINNON DRIVE, COOROIBAH
Page 33
PERFORMANCE OUTCOMES ACCEPTABLE OUTCOMES PROPOSED SOLUTION
b) adequate access for the evacuation of the subdivision, between the created lots and forest edge. Therefore, no formal firebreaks are
residents and emergency personnel in an surrounding vegetated lands. considered necessary. The development will rely on the
emergency situation. OR other bushfire risk management measures detailed
AO8.2 within this management plan to reduce the bushfire
Fire access tracks are provided between the created risk to an acceptable level.
lots and surrounding vegetated land that:
a) have a cleared minimum width of 6 metres;
b) have a maximum gradient of 12.5%;
c) provide unbroken access for fire fighting vehicles;
d) provide passing bays and turning areas;
e) are located within an access easement that is
granted in favour of Noosa Council and the Queensland
Fire and Rescue Service.
AO8.3 AO8.3 – All bushfire management measures prescribed
Bushfire management measures are carried out on the herein would be carried out on the subject property
subject property and not any adjoining property. and not rely upon any adjoining property.
AUGUST 2026 BUSHFIRE HAZARD ASSESSMENT & MANAGEMENT PLAN Page: 30
380 MCKINNON DRIVE, COOROIBAH
Page 34
7.0 CONCLUSION
A bushfire hazard assessment has been completed for Lot 5 on RP136445 located at 380 Mckinnon Drive,
Cooroibah, and has identified that the vegetation in proximity to the proposed new allotment comprises
an overall risk rating of a Medium Potential Bushfire Intensity hazard. The proposed development area is
located within a Potential Impact Buffer associated with the adjacent Medium Potential Bushfire Intensity
area. Potentially hazardous vegetation is located to the south-west of the proposed building area and is
therefore located upwind of the site under typical seasonal fire winds. In this regard, the site is deemed
to be exposed to a likely probability of bushfire impact at some time in the future. A minimum 10m wide
APZ is recommended to be maintained around the proposed building envelope to act as a firebreak in the
event of an uncontrolled wildfire. The dedicated APZ is to be maintained in a low and discontinuous fuel
state to ensure the separation is available in perpetuity. The APZ in combination with the presence of
McKinnon Drive to the south of the site will provide new built infrastructure a setback distance sufficient
to achieve significantly less than 29kW/m2 radiant heat impact in the event of a bushfire.
Bushfire impact reduction measures have been recommended in line with Noosa Planning Scheme and
the relevant Assessment Benchmarks detailed in the Natural Hazards, Risk and Resilience –– Bushfire State
Planning Policy – state interest guidance material 2019. Implementation of the recommendations
detailed in this Bushfire Management Plan is considered to provide a reasonable level of protection for
people and property within the site and reduce the overall risk of bushfire impact to an acceptable level.
Bushfire can be unpredictable and requires adequate preparatory planning and actions to be undertaken
to minimise impacts to property and potential loss of life. This assessment has been prepared with
consideration of site conditions observable at the time of inspection, the distance between the proposed
development and potentially hazardous vegetation, the extent of fragmentation occurring within the
landscape and the nature of the development proposed. The hazard assessment methodologies described
in this report are not based on assessments of catastrophic bushfire events which may occur from time
to time. The unpredictable nature of bushfires prevents any guarantee being provided that the area will
not be affected by bushfire at some time. Property owners and site users should be aware of the potential
consequences of such events and should take responsibility for the protection of property and personnel
accordingly.
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380 MCKINNON DRIVE, COOROIBAH
Page 35
8.0 REFERENCES
Leonard, J., Opie, K. (2017). Estimating the potential bushfire hazard of vegetation patches and corridors.
An enhancement of Queensland’s methodology for State-wide mapping of bushfire prone areas. CSIRO
Land & Water, Australia.
Queensland Fire and Emergency Services. (2019). Bushfire Resilient Communities - Technical Reference
Guide for the State Planning Policy - State Interest Guideline - Natural Hazards, Risk and Resilience 2-
Bushfire.
The State of Queensland, Department of State Development, Manufacturing, Infrastructure and Planning
(2019). Natural hazards, risk and resilience - Bushfire State Planning Policy – state interest guidance
material.
AUGUST 2026 BUSHFIRE HAZARD ASSESSMENT & MANAGEMENT PLAN Page: 32
380 MCKINNON DRIVE, COOROIBAH
Page 36
APPENDIX A – PLAN OF DEVELOPMENT
AUGUST 2026 BUSHFIRE HAZARD ASSESSMENT & MANAGEMENT PLAN Page: 33
380 MCKINNON DRIVE, COOROIBAH
Page 37
LEGEND
LOT BOUNDARY
BIODIVERSITY SIGNIFICANCE AREA
RIPARIAN BUFFER AREA
KOALA HABITAT AREA
m
65.36
PROPOSED
LOT 1
248.9
2.440ha
4m
(2.390ha)
4
RP136445
5
RP136445
410.14m
6
RP136445
5m 4.0m WIDE WATER EASEMENT
8.7
11
152.2
4m
PROPOSED
LOT 2
1.50ha
104.18m
6.3 8m
7m 121.0
9.58m
SCALE 1:1500 (A1) - 1:3000 (A3)
Check all dimensions before commencement of work.
Check Site boundary dimensions from the Title plans
Check Building Boundary clearances by set out.
Notwithstanding the information supplied on this drawing,
the location, depth and extent of underground or overhead
services are to be confirmed and protected on site by the
contractor prior to commencement of works.
Approved
Checked - JD Drawing title - Project - RECONFIGURATION OF A LOT Site - Project No. 264540 Sheet No. R001
E 11/09/26 LOT AREAS AMENDED AH
Design - -- Drawn - NH D 12/08/26 LOT AREAS AMENDED AH RAL 1 INTO 2 380 McKINNON DRIVE, COOROIBAH Digital Ref : R001 SITE PLAN Issue : E
C 10/08/26 LOT 1 AREA AMENDED AD
Scales - AS SHOWN B 07/08/26 PRELIMINARY AH COVEY ASSOCIATES PTY LTD 124 DUPORTH AVENUE Client -
ROGER AND ANGELA WEEKS 4565 This Document is copyright and shall not be copied
A 20/04/26 PRELIMINARY NH
ABN 59 137 305 992 PO BOX 16 without written approval, nor shall it be used except
Document Stage - PRELIMINARY (07) 5443 7777 MAROOCHYDORE QLD 4558 for the Development and the Site Specified.
Issue Date Description By [email protected]
c:\12dS\data\12DSERVER\264540_4101\Design (Covey)\RAL Plan\Uncontrolled\R001 SITE PLAN.dwg Plot 11 September 2026 - 3:39 PM
Page 38
PROPOSED
LOT 1 LEGEND
2.440ha LOT BOUNDARY
(2.390ha) BIODIVERSITY SIGNIFICANCE AREA
5 RIPARIAN BUFFER AREA
RP136445 KOALA HABITAT AREA
4.0m WIDE WATER EASEMENT
PROPOSED FACILITY
6
RP136445
4
RP136445
PROPOSED
LOT 2
1.50ha
10m
4.5m
BUILDING
ENVELOPE
10m
14m
EXISTING DRIVEWAY
TO REMAIN
NEW DRIVEWAY
ACCESS
SCALE 1:500 (A1) - 1:1000 (A3)
Check all dimensions before commencement of work.
Check Site boundary dimensions from the Title plans
Check Building Boundary clearances by set out.
Notwithstanding the information supplied on this drawing,
the location, depth and extent of underground or overhead
services are to be confirmed and protected on site by the
contractor prior to commencement of works.
Approved
Checked - JD Drawing title - Project - RECONFIGURATION OF A LOT Site - Project No. 264540 Sheet No. R002
E 11/09/26 LOT AREAS AMENDED AH
Design - -- Drawn - NH D 12/08/26 LOT AREAS AMENDED AH PROPOSED LOT 2 380 McKINNON DRIVE, COOROIBAH Digital Ref : R001 SITE PLAN Issue : E
C 10/08/26 LOT 1 AREA AMENDED AD
Scales - AS SHOWN B 07/08/26 PRELIMINARY AH COVEY ASSOCIATES PTY LTD 124 DUPORTH AVENUE Client -
ROGER AND ANGELA WEEKS 4565 This Document is copyright and shall not be copied
A 20/04/26 PRELIMINARY NH
ABN 59 137 305 992 PO BOX 16 without written approval, nor shall it be used except
Document Stage - PRELIMINARY (07) 5443 7777 MAROOCHYDORE QLD 4558 for the Development and the Site Specified.
Issue Date Description By [email protected]
c:\12dS\data\12DSERVER\264540_4101\Design (Covey)\RAL Plan\Uncontrolled\R001 SITE PLAN.dwg Plot 11 September 2026 - 3:39 PM
Page 39
APPENDIX B – Flamesol Modelling
Calculated August 20, 2026, 10:00 am (MDc v.4.9)
SUB UNIT 1 - VHC 9.1
Minimum Distance Calculator - AS3959-2018 (Method 2)
Inputs Outputs
Fire Danger Index 48 Rate of spread 1.2 km/h
Vegetation
Forest Flame length 10.76 m
Classification
Understorey fuel
21 t/ha Flame angle 54 °, 64 °, 72 °, 77 °, 78 ° & 84 °
load
4.35 m, 4.83 m, 5.11 m, 5.24 m, 5.26 m & 5.35
Total fuel load 24.2 t/ha Elevation of receiver
m
Vegetation height n/a Fire intensity 15,124 kW/m
0.879, 0.864, 0.842, 0.8179999999999999,
Effective slope 0° Transmissivity
0.805 & 0.737
0.591, 0.4397, 0.2949, 0.2003, 0.1631 &
Site slope 0° Viewfactor
0.0445
Minimum distance to < 40
Flame width 100 m 9m
kW/m²
Minimum distance to < 29
Windspeed n/a 12.1 m
kW/m²
Minimum distance to < 19
Heat of combustion 18,600 kJ/kg 17.9 m
kW/m²
Minimum distance to < 12.5
Flame temperature 1,090 K 25.8 m
kW/m²
AUGUST 2026 BUSHFIRE HAZARD ASSESSMENT & MANAGEMENT PLAN Page: 34
380 MCKINNON DRIVE, COOROIBAH
Page 40
Calculated August 20, 2026, 9:40 am (MDc v.4.9)
SUB UNIT 2 - VHC 22.1
Minimum Distance Calculator - AS3959-2018 (Method 2)
Inputs Outputs
Fire Danger Index 48 Rate of spread 1.34 km/h
Vegetation
Forest Flame length 12.16 m
Classification
Understorey fuel
23.4 t/ha Flame angle 53 °, 63 °, 71 °, 76 °, 78 ° & 83 °
load
4.85 m, 5.42 m, 5.75 m, 5.9 m, 5.95 m & 6.03
Total fuel load 28.4 t/ha Elevation of receiver
m
Vegetation height n/a Fire intensity 19,777 kW/m
0.877, 0.86, 0.836, 0.8110000000000001,
Effective slope 0° Transmissivity
0.798 & 0.733
0.5958, 0.442, 0.2971, 0.2018, 0.1643 &
Site slope 0° Viewfactor
0.0447
Minimum distance to < 40
Flame width 100 m 10.1 m
kW/m²
Minimum distance to < 29
Windspeed n/a 13.6 m
kW/m²
Minimum distance to < 19
Heat of combustion 18,600 kJ/kg 20.1 m
kW/m²
Minimum distance to < 12.5
Flame temperature 1,090 K 28.6 m
kW/m²
AUGUST 2026 BUSHFIRE HAZARD ASSESSMENT & MANAGEMENT PLAN Page: 35
380 MCKINNON DRIVE, COOROIBAH
Page 41
Calculated August 20, 2026, 9:45 am (MDc v.4.9)
SUB UNIT 3 - VHC 39.2
Minimum Distance Calculator - AS3959-2018 (Method 2)
Inputs Outputs
Fire Danger Index 48 Rate of spread 0.35 km/h
Vegetation
Woodland Flame length 3.26 m
Classification
Understorey fuel load 5 t/ha Flame angle 57 °, 68 °, 76 °, 82 °, 84 ° & 90 °
1.22 m, 1.31 m, 1.28 m, 1.16 m, 1.06 m &
Total fuel load 8 t/ha Elevation of receiver
0m
Vegetation height n/a Fire intensity 1,464 kW/m
Effective slope 3° Transmissivity 0.896, 0.89, 0.882, 0.87, 0.862 & 0.792
0.5686, 0.421, 0.2823, 0.1877, 0.1523 &
Site slope 3° Viewfactor
0.0413
Minimum distance to < 40
Flame width 100 m 2.8 m
kW/m²
Minimum distance to < 29
Windspeed n/a 3.8 m
kW/m²
Minimum distance to < 19
Heat of combustion 18,600 kJ/kg 5.6 m
kW/m²
Minimum distance to < 12.5
Flame temperature 1,090 K 8.5 m
kW/m²
AUGUST 2026 BUSHFIRE HAZARD ASSESSMENT & MANAGEMENT PLAN Page: 36
380 MCKINNON DRIVE, COOROIBAH
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AUGUST 2026 BUSHFIRE HAZARD ASSESSMENT & MANAGEMENT PLAN Page: 37
380 MCKINNON DRIVE, COOROIBAH
Page 43
AUGUST 2026 BUSHFIRE HAZARD ASSESSMENT & MANAGEMENT PLAN Page: 38
380 MCKINNON DRIVE, COOROIBAH
Used in these records
Appendix D - Bushfire Assessment.pdfRelated documentApplication case desk ↗
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