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Appendix I - Bushfire Hazard Assessment · MCU21/0146
vxoam) E G BUSHFIR PLANNIN PN TALES SSS GT LY CUA] 17-19 Hofmann Drive, Noosaville Lot 5 on SP222982 Stockwell Developments August 2021 - V2 + Bushfire assessments + Property vegetation assessments + Site planning for bushfire + Property management for bushfire + Bushfire management plans qidbushfireplanning.com.au
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Disclaimer This document has been prepared for the benefit of Stockwell Developments. This report is prepared for the benefit of the named client only. No third party may rely upon any advice or work done by Queensland Bushfire Planning (QBP) in relation to the services, including this report, except to the extent expressly agreed to in writing by QBP. It is acknowledged and agreed that the site may be subject to a degree of bushfire hazard. The client acknowledges and agrees that QBP has not created or contributed to the creation of this hazard and the client indemnifies QBP for claims arising out of or result from a bushfire event except to the extent attributable to the negligence of QBP. The client agrees that QBP shall have no liability in respect of any damage or loss incurred as a result of bushfire. Compliance with this report shall be the responsibility of the client and/or the land-owners. This disclaimer shall apply notwithstanding the report may be made available to the relevant Local Government Authority and other persons for an application for permission or approval to fulfill a legal requirement.
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BHA Report for17-19 Hofmann Drive, Noosaville
EXECUTIVE SUMMARY
A Residential Apartment Complex has been proposed at 17-19 Hofmann Drive, Noosaville, Lot 5 on SP222982. The site is
captured by the State Planning Policy Natural Hazards and Resilience - Bushfire Prone Area mapping and in accordance with
the provisions of the Noosa Council Bushfire Hazard Overlay Code, a detailed Bushfire Hazard Assessment has been prepared.
The subject site has been identified in the Queensland State Planning Policy (2017) as being within a potential bushfire impact
zone. This report includes a number of recommendations regarding bushfire risk mitigation in accordance with AS3959-2018
and Noosa Plan 2020.
Recommendation
1 Proposed buildings will be constructed to meet the requirements of the Australian Standard
AS3959- 2018 - Construction of buildings in bushfire prone areas.
2 Fencing on 17-19 Hofmann Drive, Noosaville will be constructed of non – combustible
materials.
3 Safe Ingress and egress for residents and emergency services will be via Hoffman Drive.
4 Reticulated water will be provided to the reconfiguration.
5 A bushfire information kit will be provided to residents to inform them of the bushfire risks and
their roles and responsibilities for prevention, preparedness and response to any fire event.
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BHA Report for17-19 Hofmann Drive, Noosaville INTRODUCTION Queensland Bushfire Planning has been engaged on behalf of Stockwell Developments to conduct a site-based Bushfire Hazard Assessment in relation to a Residential Apartment Complexdevelopment at 17-19 Hofmann Drive, Noosaville. This Report has been prepared in accordance with the Noosa Plan 2020. The aim of this report is to demonstrate the level of bushfire hazard, utilising the methodology as required by SC8.2.3 of that policy. The focus of this Report refers to the statutory planning and building requirements as they may apply, pursuant to all relevant policies, standards and regulation, along with end-user consideration. In addition, this report seeks to ensure fire risk and evacuation for adjoining and nearby properties is not inadvertently adversely impacted. This assessment report aims to mitigate the risk to life and property from bushfire threat and the impact of bushfire attack which includes: · Direct flame contact; · Ember and firebrand attack; · Radiant heat; and · Fire-driven wind. This assessment does not seek to remove the threat of any bushfire risk, but provide detailed siting, layout, building and/or servicing information to assist the ability of the owner(s) to manage the potential threat of this risk. This assessment report is prepared in accordance with best practice industry standards as applicable in Queensland and pursuant to both State and local government bushfire hazard policies and guidelines. + Bushfire assessments + Property vegetation assessments + Site planning for bushfire + Property management for bushfire Bushfire Planning Specalists - qldbushfireplanning.com.au + Bushfire management plans
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BHA Report for17-19 Hofmann Drive, Noosaville SITE DESCRIPTION AND DETAILS Site Address 17-19 Hofmann Drive, Noosaville Local Government Noosa Council Real Property Description Lot 5 on SP222982 Zoning High Density Residential Precinct Area of Site (square meters) 10 109 Applicant Stockwell Developments Current Land Use Vacant Land - Vegetated Proposed Land Use High Density Residential + Bushfire assessments + Property vegetation assessments + Site planning for bushfire + Property management for bushfire Bushfire Planning Specalists - qldbushfireplanning.com.au + Bushfire management plans
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BHA Report for17-19 Hofmann Drive, Noosaville
The site is located at 17-19 Hofmann Drive, Noosaville and is described as Lot 5 on SP222982 within Noosa Council (Figure
1).
Figure 1
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BHA Report for17-19 Hofmann Drive, Noosaville
Lot 5 on SP222982 have an area of 10 109 square metres and are aligned north -south with a northeasterly aspect (Figure 2).
Figure 2
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BHA Report for17-19 Hofmann Drive, Noosaville
Lot 5 on SP222982 is zoned High Density Residential Precinct (Figure 3).
Figure 3
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BHA Report for17-19 Hofmann Drive, Noosaville
PROPOSED DEVELOPMENT
The proposed development is a Residential Apartment Complex (Figure 4).
Figure 4
SCOPE OF BUSHFIRE HAZARD ASSESSMENT
A reconfiguration of a lot has been proposed at 17-19 Hofmann Drive, Noosaville, Lot 5 on SP222982. The site is captured by
the State Planning Policy Natural Hazards and Resilience - Bushfire Prone Area mapping and in accordance with the provisions
of the Noosa Council Bushfire Hazard Overlay Code , a detailed Bushfire Hazard Assessment has been prepared.
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BHA Report for17-19 Hofmann Drive, Noosaville
UNDERSTANDING BUSHFIRE HAZARD
Bushfires are an intrinsic part of Australia's environment. Natural ecosystems have evolved with fire and the landscape, along
with its biological diversity, has been shaped by both historic and recent fires. Many of Australia's native plants are fire prone
and very combustible, while numerous species depend on fire to regenerate. Indigenous Australians have long used fire as a
land management tool and it continues to be used to clear land for agricultural purposes and to protect properties from intense,
uncontrolled fires. Historically, bushfires have caused loss of life and significant damage to property. While naturally occurring
bushfires cannot be averted, their consequences can be minimised by implementing mitigation strategies and reducing the
potential impact to areas which are most vulnerable.
Bushfire Attack
Bushfire attack refers to the various methods in which bushfire may impact upon life and property and principally encompass:
• Direct flame contact;
• Ember and firebrand attack;
• Radiant heat; and
• Fire-driven wind (Figure 5).
Figure 5
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BHA Report for17-19 Hofmann Drive, Noosaville Direct Flame Contact Direct flame attack refers to flame contact from the main fire front, the flame that engulfs burning vegetation is the same flame that contacts the building. It is estimated that only 10 to 20 per cent of buildings lost to bushfire occur as a direct result of flame attack. Ember and Firebrand Attack CSIRO research has shown that ember attack is the cause of up to 80% of house loss in Australia. The convective forces of bushfire raise burning embers into the atmosphere on prevailing winds and deposit them to the ground ahead of the fire front. Typically, ember attack occurs approximately 30 minutes prior to the arrival of the fire front and continues during the impact of the fire front and for several hours afterwards. Building loss via ember attack relates largely to the vulnerabilities and peculiarities of each building, its distance from the classifiable vegetation and whether someone is present to actively defend the building. Radiant Heat Measured in kilowatts per m2, radiant heat is the heat energy released from the fire front which radiates to the surrounding environment, deteriorating rapidly over distance. In terms of impacts on buildings, radiant heat can pre-heat materials making them more susceptible to ignition. Radiant heat can also damage building materials such as window glazing, allowing openings into a building through which embers may enter. Fire Driven Wind The convective forces of a bushfire typically result in strong fire-driven winds, which can lead to building damage. The typical effects of fire driven wind include conveyance of embers, damage from branches and debris hitting the building, as well as direct damage to vulnerable building components, such as lifting roofs and the breakage of windows. + Bushfire assessments + Property vegetation assessments + Site planning for bushfire + Property management for bushfire Bushfire Planning Specalists - qldbushfireplanning.com.au + Bushfire management plans
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BHA Report for17-19 Hofmann Drive, Noosaville
Vegetation
The Australian bush varies greatly around the country. There are regions of open woodlands, grassland savannas, dense
rainforest. Different types of vegetation burn differently. Generally, fuel is classified as being fine (grasses and twigs that are
less than 6 millimetres in diameter) or heavy (branches, logs or stumps). Finer fuels burn more easily, increasing the spread of
the fire. Another key factor is fuel moisture content, or how dry the fuel is. The drier the fuel, the more easily it will burn. The
dryness of the fuel depends on seasonal rainfall and temperatures.
Topography
Fires burn faster uphill. This is due to the radiation and convection a fire creates preheating the fuel. A 10-degree increase in
slope results in a doubling of the speed of the fire. Fire will spread up a 10-degree slope two times as fast as it will along flat
ground (Figure 6). The aspect of a slope (direction that a sloping piece of land is facing) influences a fire's behaviour. Northern
and western aspects receive more direct heat from the sun, drying both the soil and the vegetation more than on southern or
eastern slopes. The fuels on northern and western aspects are often drier and less dense than fuels on slopes with a different
aspect.
Figure 6
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BHA Report for17-19 Hofmann Drive, Noosaville
Fire Weather
Fire weather affects bushfire risk levels on a daily, weekly or seasonal basis. The South-east Queensland weather pattern is
dominated by a maritime effect. The most common winds are southeast and northeast, the latter being very common during the
summer months as an afternoon sea breeze. The most severe fire weather in the area is associated with a northwest wind
generated on the back of a high pressure system moving slowly from west to east or from a situation where there is intense low
pressure activity in the southeast of Australia extending a trough into southern Queensland (Just, 1978). However, the
frequency of these situations in the region is low, being generally of the order of one to two days or fewer per year. The
exception can occur in bad fire seasons when fuel conditions are very dry as a result of prolonged dry periods. In Queensland,
these bad fire seasons occur about once a decade and are infrequent when compared with the fire situation that prevails
frequently in southern Australia.
Whilst an assessment of vegetation types, fuel loads, effective slope and other factors can be readily undertaken, fire weather
can fluctuate across days, weeks and seasons and can have a significant impact on the potential for bushfire threat, as well as
influence bushfire behaviour and intensity. The Forest Fire Danger Index (FFDI) is a commonly used method to readily advise
the community of the likely ability of fire suppression based on fire weather, which is used to inform the Fire Danger Rating
(FDR) System (Figure 7). It is important to maintain awareness as to the level of local fire danger during the fire season.
Figure 7
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BHA Report for17-19 Hofmann Drive, Noosaville
BUSHFIRE HAZARD ASSESSMENT
The State Government Single State Planning Policy (SPP) released in 2017, includes mapping that is an outcome of the new
bushfire hazard mapping methodology, developed by the CSIRO and the Queensland Government. The new Bushfire Prone
Area mapping was found to have an average reliability of 85%. The new methodology provides a major improvement in
bushfire hazard mapping. The new modified approach calculates potential fire line intensity using total fuel loads, landscape
slope and fire weather severity. A default 100-metre buffer was determined from analysis of heat and radiation decay curves
and research that indicates 80% of housing loss and 80% of life loss occurred within 100 metres of bushland.
The subject site is identified on the State Planning Policy Natural Hazards Risk and Resilience mapping and the Noosa Plan
2020 Bushfire Hazard Overlay Map as being within potential bushfire impact zone, requiring the bushfire hazard impacts be
addressed (Figure 8).
Figure 8
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BHA Report for17-19 Hofmann Drive, Noosaville
LOCAL GOVERNMENT PROVISIONS
The Noosa Plan 2020 came into effect on 31 July 2020 and incorporated Bushfire Hazard Overlay Mapping, Overlay Code
and Bushfire Hazard Planning Scheme Policy. An Assessment has also been conducted against the applicable Overlay Code.
SITE ASSESSMENT
An assessment was conducted at 17-19 Hofmann Drive, Noosaville to observe and record the relevant information to determine
the bushfire hazard in accordance with the requirements of the Noosa Plan 2020
Vegetation
The now existing vegetation consists of regrowth Regional Ecosystem (RE) 12.11.5 - Corymbia citriodora subsp. variegata
woodland ± Eucalyptus siderophloia or crebra, E. carnea, E. acmenoides, E. propinqua on metamorphics ± interbedded
volcanics gum dominated woodlands. Vegetation hazard Class 10.2 (Photo 1).
Photo 1
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BHA Report for17-19 Hofmann Drive, Noosaville
Classified Vegetation
Australian Standard, Construction of Buildings in Bushfire Prone Areas (AS 3959–2018) requires any classified vegetation
within 100 metres of the proposed works must be assessed. The remnant vegetation on Lot 5 on SP222982 and surrounding
properties has been assessed as Melaleuca open forests on seasonally inundated lowland coastal swamp(Photo 2)
Photo 2
Risk Analysis
The potential for an unplanned vegetation fire to occur within retained vegetation is a function of the level of hazard and the
opportunity for ignition and fire development. The risk can be quantified in two parts:
· Internal
· External
Internal
No hazardous vegetation will remain on the Lots 17, 18, 19 on SP246584.
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BHA Report for17-19 Hofmann Drive, Noosaville
External
The high density residential development on Lots 17, 18, 19 on SP246584 is part of the Reconfiguration of Lot (Lot 3
on SP 246584. The Lots to the east (3 - 9), south (10 - 15) and west (21) are now approved development (Figure 9).
Figure 9
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BHA Report for17-19 Hofmann Drive, Noosaville Lot 3 and Lot 7 to the east and Lot 21 on SP 246584 to the west are now part of approved development and will not be considered as part of this assessment. Lot 5 SP222982 to the south of Hoffman Drive will also impact the proposal on Lots 17, 18, 19 on SP246584. Covenant J within proposed Lot 1 is a linear discrete area of vegetation, approximately 1 hectare in extent, that will be maintained as a managed swale area. The area will be bisected by a proposed pedestrian connector to Noosa Civic as part of the future development. The original vegetation type was Regional Ecosystem (RE) 12.9 - 10.1 Tall open forest often with Eucalyptus resinifera, E. grandis, E. robusta, Corymbia intermedia on sedimentary rocks. As a result of past management and urban development the vegetation type is now classed as non - remnant. Patches less than 3 ha are less likely to develop into a fully developed fire front due to the size and distance required for a significant fire front of high intensity. The development of Hoffman Drive will further reduce any possible involvement of the swale area in a fire event. Lot 5 on SP222982, south of Hoffman Drive, is an area of non - remnant vegetation as a result of past disturbance. The original vegetation is described as Regional Ecosystem (RE) 12.3.5 Melaleuca quinquenervia open forest on coastal alluvium. The area has been assessed as RE 12.3.5 Melaleuca open forests on seasonally inundated lowland coastal swamps. The establishment of a commercial complex on OSP 285856 further mitigates a direct impact on the proposed development on Lots 17, 18, 19 on SP246584. To the southeast Lots 4 to 15 will further mitigate impacts from that exposure. A fireline access with designated hydrants for fire fighting purposes has been planned at the southern boundary (Figure 10). + Bushfire assessments + Property vegetation assessments + Site planning for bushfire + Property management for bushfire Bushfire Planning Specalists - qldbushfireplanning.com.au + Bushfire management plans
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BHA Report for17-19 Hofmann Drive, Noosaville
Figure 10
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BHA Report for17-19 Hofmann Drive, Noosaville
ASSESSMENT OF BUSHFIRE HAZARD
Australian Standard - Construction of Buildings in Bushfire Prone Areas (AS 3959–2018) requires that any classified vegetation
within 100 metres of the proposed works must be assessed. Figure 11 shows the extent of the 100-metre separation zone (BAL
Impact Zone). The assessable vegetation is located on Lots 5 on SP222982 and OSP 285856 (Figure 11).
Figure 11
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BHA Report for17-19 Hofmann Drive, Noosaville
Potential Radiant Heat Flux
The Australian Standard, Construction of Buildings in Bushfire Prone Areas (AS 3959-2018), provides a suitable methodology
for identifying assessable vegetation and determining the requirements for the construction of buildings in order to improve
their resistance to bushfire attack from burning embers, radiant heat, flame contact and a combination of the three attack forms.
Calculations using AS 3959-2018, in accordance with Appendix B - Detailed Method for Determining the Bushfire Attack
Level (BAL) – Method 2 (Normative), determine the fireline intensity generated by the identified vegetation type. Table 1
indicates the relative Heat Flux Exposure as a function of distance of a building from the vegetation on Lot 5 SP222982, south
of Hoffman Drive (Appendix 1).
Bushfire Protection Measures in Combination
Figure 11 illustrates that effective protection against bushfire can only be achieved by the integration of multiple measures.
Removing the bushland (hazard) will remove the risk but this option is neither necessarily possible nor desirable. An
acceptable level of protection of life and property can be achieved while still retaining and protecting biodiversity and the
natural values of the bushland.
Figure 12
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BHA Report for17-19 Hofmann Drive, Noosaville BUSHFIRE RISK MITIGATION A range of strategies can be applied to mitigate the potential impacts of bushfire: · Vegetation management · Access and egress · Fencing · Water supply · Awareness and education · Building construction. Vegetation Management Onsite vegetation and landscape management are important to maintaining low hazard conditions by: · Limiting fuel accumulation; · Reducing connectivity of fuels; · Establishing and maintaining defendable space; · Appropriate landscaping; · The proposed nature of the development will not result in any additional bushfire hazard. Clearing No classified hazardous vegetation will remain on the proposed lots Landscaping No hazardous vegetation would be established as a result of the proposal. + Bushfire assessments + Property vegetation assessments + Site planning for bushfire + Property management for bushfire Bushfire Planning Specalists - qldbushfireplanning.com.au + Bushfire management plans
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BHA Report for17-19 Hofmann Drive, Noosaville Site Access and Egress The intent of design requirements for roads is to provide safe egress for residents and access for attending firefighting vehicles. A road system that is compliant with guideline measures provides fire services with easier access to buildings, a safe retreat for firefighters and residents, and can provide a fire control line where hazard reduction and back burning can take place. In determining safe access to a site, consideration is given to the fire brigade vehicles which are required to access public and private roads. Given the size of these vehicles and the poor visibility in which they often operate, roads need to be designed to specific requirements, including road width, grade, cross-fall, weight capacity, passing bays and turnaround areas, all of which may vary depending on whether it is a perimeter, access, cul-de-sac or battle-axe road type. Suitable safe access and egress for residents and emergency services will be provided via Hoffman Drive. Fencing Fencing materials have the capacity to contribute to fire spread and intensity. It is recommended that non-combustible fencing materials should be used if required. Water Supply Providing a sufficient water supply provides firefighters and residents with the appropriate levels of water to undertake building defense. There are two options in which a house site can be supplied with a sufficient water supply; from either reticulated water accessible via a hydrant, or a dedicated static water supply. Reticulated water will be supplied to the development meeting the required statutory standards. Reticulated water will be provided to site to meet statutory requirements. + Bushfire assessments + Property vegetation assessments + Site planning for bushfire + Property management for bushfire Bushfire Planning Specalists - qldbushfireplanning.com.au + Bushfire management plans
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BHA Report for17-19 Hofmann Drive, Noosaville Community Awareness Property owners are responsible for developing their own knowledge and understanding of the level of bushfire risk specific to their respective properties. A household bushfire plan is required and must take account of matters such as where occupants are during the day (at home, work or school), if any occupants require special assistance (i.e. infants, the elderly or the ill), evacuation routes available, evacuation destinations, property maintenance and preparation and arrangements for pets. Planning ahead of any perceived bushfire event is essential. The warning systems now implemented by Emergency Services and Local Authorities provide timely information and advice to occupants. Understanding what to do in the event of bushfire emergency is critical. Prior knowledge as to the steps to take during the lead up to a fire event, during the passage of bushfire, and what to do immediately after the fire front has passed is critical. The Rural Fire Service Queensland (RFSQ) ‘Bushfire Survival Plan’ provides detailed information on how to prepare for the bushfire season and how to take action to survive in the event of bushfire. A copy of this publication can be obtained from the RFSQ website. (https://ruralfire.qld.gov.au/Fire_Safety_and_You/Bushfire_Survival_Plan/) An emergency response plan, which will include a bushfire event will be developed for the complex. + Bushfire assessments + Property vegetation assessments + Site planning for bushfire + Property management for bushfire Bushfire Planning Specalists - qldbushfireplanning.com.au + Bushfire management plans
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BHA Report for17-19 Hofmann Drive, Noosaville SUMMARY OF RECOMMENDATIONS This report includes a number of recommendations regarding bushfire risk mitigation in accordance with AS3959-2018 and Sunshine Coast Planning Scheme 2014. A summary of recommendations made by this report is included below. RECOMMENDATIONS 1. Proposed buildings will be constructed to meet the requirements of the Australian Standard AS3959- 2018 - Construction of buildings in bushfire prone areas.The BAL rating is function of distance from the hazardous vegetation (appendix 1 - potential bushfire attack level) 2. Fencing on Lot 5 on SP222982 will be constructed of non – combustible materials if required 3. Ingress and egress for residents and emergency services will be via internal constructed roads connecting to Hoffman Drive. 4. Reticulated water will be provided to the reconfiguration. 5. An Emergency management Plan will be developed for the complex, and will be provided to residents to inform them of the bushfire risks and their roles and responsibilities for prevention, preparedness and response to any fire event. CONCLUSIONS This report considers the bushfire mitigation measures required for 17-19 Hofmann Drive, Noosaville, Lot 5 on SP222982. Based on this assessment, a range of recommendations has been derived. In addition, it is significant to note that bushfire remains a natural process which is endemic to the Australian bush and it remains subject to a range of contributing factors which are variable on a daily and hourly basis. It is extremely difficult to predict the behaviour and intensity of a fire event at any given time. Therefore, it remains of the upmost importance that residents within identified bushfire prone areas obtain knowledge and remain aware of their options in the event of a bushfire to ensure the preservation of both life and property. + Bushfire assessments + Property vegetation assessments + Site planning for bushfire + Property management for bushfire Bushfire Planning Specalists - qldbushfireplanning.com.au + Bushfire management plans
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soa)
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BHA Report for17-19 Hofmann Drive, Noosaville
APPENDIX 1
POTENTIAL BUSHFIRE ATTACK LEVEL
The Australian Standard, Construction of Buildings in Bushfire Prone Areas (AS 3959-2018) provides a suitable methodology
for identifying assessable vegetation and determining the requirements for the construction of buildings in order to improve
their resistance to bushfire attack from burning embers, radiant heat, flame contact and a combination of the three attack forms.
Method for Determination of BAL
The BAL was determined in accordance with Appendix B of AS 3959-2018, Detailed Method for Determining the Bushfire
Attack Level (BAL) – Method 2 (Normative):
Step 1: Determine the relevant FDI.
Step 2: Determine the vegetation classification, fuel loads.
Step 3: Determine the effective slope in degrees under the classified vegetation.
Step 4: Determine the slope in degrees of the land between the site and the classified vegetation.
Step 5: Determine the distance of the site from classified vegetation.
Step 6: Calculations.
Determination of BAL
Step 1. Relevant Fire Danger Index
The PSBA bushfire hazard mapping identifies the FFDI as 48.
Step 2. Vegetation Classification - Fuel Loads
The vegetation type was classified as Melaleuca open forests on seasonally inundated lowland coastal swamp. Available fuel
weights were derived from PSBA State – Wide Bushfire Hazard (Bushfire Prone Area) Mapping. Fuel weight was determined
as: 28.4 tonne/hectare. Fuel weights were determined as:
• 15.4 tonne/hectare surface fuels
• 8.0 tonne/hectare near surface fuels
• 3.0 tonne/hectare elevated fuels
• 2.0 tonne/hectare bark fuels
• Total fuel weight = 28.4 tonne/hectare.
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BHA Report for17-19 Hofmann Drive, Noosaville Step 3. Determine the effective slope in degrees under the classified vegetation The classified vegetation is downslope at 2 degrees, calculated using a Nikon Forestry Pro Range Finder and Inclinometer. Step 4. Determine the slope in degrees of the land between the site and the classified vegetation The slope between the site and the classified vegetation is downslope with an average slope of 2 degrees. Step 5. Determine the distance of the site from classified vegetation Distance is calculated from the closest edge of the classified vegetation. Classified vegetation under AS 3959-2018 does not include low threat vegetation. Table 1 Step 6. Calculations Effective slope (°) - 2 Site slope (°) - 2 Distance (m) - see Table 1 Vegetation classification –– Melaleuca open forests on seasonally inundated lowland coastal swamp Forest Fire Danger Index (FFDI) – 48 Surface fuel load (t/ha) – 15.4 Overall fuel load (t/ha) – 28.4 Heat of combustion (kj/kg) – 18 600 Flame temperature (K) – 1 090 Outcomes Intensity (kW/m2) – 25 614 Radiant heat flux (kW/m2) – Table 1 Bushfire Attack Level (BAL) - Table 1 + Bushfire assessments + Property vegetation assessments + Site planning for bushfire + Property management for bushfire Bushfire Planning Specalists - qldbushfireplanning.com.au + Bushfire management plans
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BHA Report for17-19 Hofmann Drive, Noosaville
APPENDIX 2
CODE COMPLIANCE ASSESSMENT
Bushfire Hazard Overlay Code - Noosa Plan 2020 (Section 8.2.3)
Performance Outcomes Acceptable Outcomes Compliance
PO1 AO1.1 Proposed development is not located
Development maintains the safety of Development which will materially within a bushfire hazard area.
people and property from the adverse increase the number of people living or
impacts of bushfire. congregating on premises,
including reconfiguring a lot, is not
located within a medium or high
bushfire hazard area.
AO1.2
Development maximises setbacks from
hazardous vegetation to achieve an
acceptable risk.
PO2 No acceptable outcome provided. No impacts on bio - diversity,
Bushfire mitigation measures do not wetlands or native vegetation.
adversely impact on:
1. biodiversity values,
connectivity and ecosystem
functioning; and
2. the long term physical integrity
of waterways, wetland and
areas of native vegetation.
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BHA Report for17-19 Hofmann Drive, Noosaville
Performance Outcomes Acceptable Outcomes Compliance
PO3 AO3.1 Reticulated water provided to meet
Development provides an adequate Premises are connected to the statutory requirements.
water supply for fire fighting purpose reticulated water supply.
which is reliable, safely located and OR
freely accessible. AO3.2
Where there is no available reticulated
water supply, the premises has:
1. an accessible dam, swimming
pool or water tank available for
fire fighting purposes with an
onsite water volume of not less
than 5,000 litres; and
2. 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).
PO4 AO4.1 N/A
Essential community infrastructure is Development involving essential
able to function effectively during and community infrastructure is not located
immediately after bushfire events. within a medium or high 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.
+ Bushfire assessments
+ Property vegetation assessments
+ Site planning for bushfire
+ Property management for bushfire Bushfire Planning Specalists - qldbushfireplanning.com.au
+ Bushfire management plans
Page 31
BHA Report for17-19 Hofmann Drive, Noosaville
Performance Outcomes Acceptable Outcomes Compliance
PO5 AO5 N/A
Public safety and the environment are Hazardous materials are not
not adversely affected by the impacts of manufactured or stored in bulk in a
bushfire on hazardous materials bushfire hazard area.
manufacturing or storing in bulk.
PO6 AO6.1 Suitable and safe access and ingress
Roads provide for easy and safe The road layout provides for through- provided for Emergency services
evacuation of residents of premises roads and avoids cul-de-sacs and dead- personnel via Hoffman Drive
and access by emergency services. end roads.
OR
AO6.2
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
Where an emergency access point is
required, it complies with the
relevant works codes and PSP6
Engineering Design Standards.
+ Bushfire assessments
+ Property vegetation assessments
+ Site planning for bushfire
+ Property management for bushfire Bushfire Planning Specalists - qldbushfireplanning.com.au
+ Bushfire management plans
Page 32
BHA Report for17-19 Hofmann Drive, Noosaville
Performance Outcomes Acceptable Outcomes Compliance
PO7 AO7 N/A
Lot design and building siting Each residential lot:
minimises bushfire hazard risk to 1. includes a building envelope,
people and property. identified on a plan of
subdivision;
2. is of sufficient size and shape
to allow for efficient
emergency access to buildings
for fire fighting appliances
(e.g. by avoiding battle-
axe/hatchet lots and long
narrow lots with
long access driveways to
buildings);
3. where more than 2500m²,
achieves setbacks from
hazardous vegetation in line
with Bushfire Attack Level 29
requirements as per AS3959;
and
4. is designed so
that buildings and structures ar
e sited in locations of lowest
hazard within the lot and
elements of the development
least susceptible to fire are
closest to the fire hazard.
+ Bushfire assessments
+ Property vegetation assessments
+ Site planning for bushfire
+ Property management for bushfire Bushfire Planning Specalists - qldbushfireplanning.com.au
+ Bushfire management plans
Page 33
BHA Report for17-19 Hofmann Drive, Noosaville
Performance Outcomes Acceptable Outcomes Compliance
PO8 AO8.1 N/A
Firebreaks and fire access tracks Where development involves the
provide: creation of a new road and lots,
1. adequate access for fire a firebreak is provided by providing a
fighting and other emergency cleared road reserve not less than 20
metres wide and maximum gradient of
vehicles; and
12.5% around the perimeter of the
2. adequate access for the
subdivision, between the created lots
evacuation of residents and
and surrounding vegetated lands.
emergency personnel in an
OR
emergency situation.
AO8.2 N/A
Fire access tracks are provided between
the created lots and surrounding
vegetated land that:
1. have a cleared minimum width
of 6 metres;
2. have a maximum gradient of
12.5%;
3. provide unbroken access for
fire fighting vehicles;
4. provide passing bays and
turning areas;
5. are located within
an access easement that is
granted in favour of Noosa
Council and the Queensland
Fire and Rescue Service.
AO8.3 N/A
Bushfire management measures are
carried out on the subject property and
not any adjoining property.
+ Bushfire assessments
+ Property vegetation assessments
+ Site planning for bushfire
+ Property management for bushfire Bushfire Planning Specalists - qldbushfireplanning.com.au
+ Bushfire management plans
Page 34
BHA Report for17-19 Hofmann Drive, Noosaville
Appendix 3
About the Report Author
This Report was prepared by Bushfire Specialist Bernard Trembath. Bernard has
extensive practical knowledge and experience in bushfire planning and
management and an intimate working knowledge of Queensland vegetation and
climate, particularly in relation to fire prediction and behaviour.
Prior to establishing Queensland Bushfire Planning in 2014, Bernard was the
Regional Manager Rural Operations, Brisbane Region, for Queensland Fire and
Emergency Services (QFES). As Regional Manager, Bernard was responsible for
bushfire mitigation within the Brisbane Region, working with Local
Governments and many other organisations to help reduce the impacts of
bushfires. Bernard was also the QFES bushfire planning specialist, providing
specialist bushfire planning and management advice on behalf of QFES.
Since 2014, Bernard has provided his specialist bushfire planning knowledge to
advise and assist a large number of individuals, companies and government
agencies. His happy clients include:
+ Bushfire assessments
+ Property vegetation assessments
+ Site planning for bushfire
+ Property management for bushfire Bushfire Planning Specalists - qldbushfireplanning.com.au
+ Bushfire management plans
Used in these records
Appendix I - Bushfire Hazard Assessment.pdfRelated documentApplication case desk ↗
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