AA1345BFIRE Revision 2

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        In accordance with Table A3.4 of the superseded SPP 1/03, the site is subject to a
        Medium severity of bushfire hazard.

        6.2    Potential Fireline Intensity (State Planning Policy 2014)

        As the current mapping within the Noosa Plan does not reflect the updated State
        Planning Policy mapping, calculations to determine the Potential Fireline Intensity and
        associated hazard score have been undertaken in accordance with State Planning
        Policy – state interest technical manual, Natural Hazards, Risk and Resilience, A “fit
        for purpose” approach in undertaking natural hazard studies and risk assessments.

       This hazard score is calculated as follows:

       Vegetation Hazard Class 4 – Heath communities – PFL = 27 t/ha
       Note that the heath community has been selected as this community surrounds the site and
       has a higher hazard rating than the site vegetation.

       FFDI = 40
       Slope = 9 degrees

       PFI = 0.62 x 272 x 40 x exp(0.069 x 9)
       PFI = 33,641kW/m, High Hazard.

        6.3    Asset Protection Zone

        The Asset Protection Zone (APZ) or setback/safety buffer is land adjacent to the
        hazardous vegetation that provides a firebreak to the development.

        In accordance with the Noosa Plan Part 13 - Overlays, Table 13.9 Bushfire Hazard
        Area, Section 13.34 Siting, design and construction; Probable Solution S7.1 states
        that a setback distance from hazardous vegetation of 1.5 times the predominant
        mature canopy tree height or 10m, whichever is the greater, is required.

        According to detailed survey the predominant mature canopy tree height for the
        vegetation adjoining the eastern and southern boundaries is approximately 13m.
        Therefore, a separation distance of 19.5m would be required between the habitable
        structures and the hazardous vegetation, in accordance with the Code’s Probable
        Solution. Refer to Vegetation Management Plan prepared by JFP for details on tree
        locations and building setback distances.

        We understand a separation distance between the development and the tree canopy
        of a minimum of 13m is proposed for the development which comprises private
        access road, landscaping areas and pedestrian footpath. In accordance with the
        Australian Standard AS3959-2009 Construction of buildings in bushfire-prone areas,
        Table 2.4.5 (FDI 40), a separation distance of 15m would require the elevations of
        buildings bordering the Environmental Park (eastern boundary) and National Park
        (southern boundary) to be constructed to a level to meet BAL-29. Required
        construction levels should be confirmed with a Building Certifier prior to construction.

               6.3.1   Bushfire Attack Discussion

               The proposed minimum 13m setback distances for the proposed development
               should provide adequate protection for buildings from potential fire attack. As
               stated in the Australian Standard AS3959-2009 – Construction of buildings in
               bushfire-prone areas, there is no guarantee that the building will survive every
               bushfire event due to extreme weather conditions and the unpredictable
               behaviour and nature of fire.


AA1345BFIRE                                  Rev.2
April 2016
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