Appendix F - bushfire attack level assessment report · MCU25/0022

3.0 Bushfire Hazard Assessment
3.1      Bushfire hazard classification




Figure 3. Council and State bushfire hazard mapping


“Bushfire Prone Area” (BPA) is defined under Section 7 of Building Regulation 2021 and the BCA as an area
identified as such by Local Government , in this case using the methodology specified in A new
methodology for State-wide mapping of bushfire prone areas in Queensland (CSIRO 2014). The BCA
calls up AS3959-2018 as providing “Deemed to Satisfy” construction levels for Class 1, 2 and 3 buildings and
associated Class 10a structures constructed in bushfire prone areas.

AS3959-2018 specifies building implications within 100m of designated bushfire prone land, or more strictly
speaking, within 100m of intact, classified vegetation (50m in the case of grassland). This BMP establishes
Bushfire Attack Levels (BALs) for proposed buildings, comparing Methods 1 and 2 under AS3959-2018.

The remainder of Section 3 establishes the potential fuel loads and slopes for the site, carried forward to
Section 6, which validates the closest hazard as supporting “Medium” potential bushfire intensity”, between
4 000 – 20 000kW/m of fireline.




Report compiled by Bushfire Risk Reducers for Mr A. Wittaker, February 2023                Page 8