Bushfire Hazard Assessment Management Plan v2 - 434 Lake Cooroibah Rd Lake Cooroibah v1 · RAL26/0015

Bushfire Hazard Assessment & Management Plan v2                                 NCES REF: J001445
434 Lake Cooroibah Rd Lake Cooroibah, QLD



7    AUSTRALIAN STANDARD 3959:2018 CONSTRUCTION OF BUILDINGS IN
     BUSHFIRE PRONE AREAS (AS 3959:2018) SETBACKS

NCC 2022 stipulates that Class 1, 2, 3, 9a-9c and any associated Class 10a buildings located
in designated bushfire prone areas (i.e., local or state government bushfire overlay maps) are
assessable against AS3959. In accordance with the definition in the NCC, a designated
bushfire prone area in QLD means:
    •    land which has been designated under a power of legislation as being subject, or likely
         to be subject, to bushfires.
The current application is for an RAL hence AS3959 is not currently applicable.
Compliance with the SPP Assessment Benchmark 4 <29 kW/m² RHF criteria typically results
in a maximum Bushfire Attack Level (BAL) 29 outcome for new assessable buildings.
Any future Class 1, 2, 3, 9a-9c and any associated Class 10a buildings within the site located
in the SPP or Noosa Plan mapped bushfire prone area; a designated bushfire prone area,
must be built to satisfy the relevant BAL acting on the buildings in accordance with AS3959
2018 Construction in Bushfire Prone Areas. Compliance with AS3959 is expected to alleviate
the consequences of ember attack and radiant heat attack to an acceptable level (i.e., reduce
the risk of dwelling failure and loss of life therein during a passing fire front).
IMPORTANT NOTE - The patch and corridor filtering process available under the SPP
methodology is not available under the AS3959 methodology which provides its own
set of criteria for Low threat vegetation and non-vegetated areas. AS3959 requires
assessment of continuous small linear strips of vegetation greater than 1 tree wide
which are otherwise removed under the SPP methodology. This is applicable to Lot 7
and should be considered when siting the future dwelling.




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