Bushfire Prone Development Building Codes & Rules
- Ensure fire-safe construction in Bushfire-Prone Areas with Tools™. Comply with NCC Part G5 & AS 3959, incorporating best practices for resilience.
Water Supply
- Available for use by fire fighters[1]
- Outlet location protected and accessible
- Hydrants in street if available
- Tank in rural areas
- 5 to 10kl capacity dependent on lot size
- Steel & or buried pipework
Static Water Supply (SWS)
NCC 2022 V2
All Building Classes
NCC 2022 G5D2, H7D4, & S1
[2019 G5.1, 3.10.5, Sch 5]
May 2023
NCC 2022 Vol 1, G5D2
NCC 2022 Vol 2, H7D4
NCC 2022 Vol 3, S1
NSW 2019 Planning for Bushfire Protection, 6.8.3
- Building elements within Bushfire-Prone Areas to be Bushfire Attack Resistant to the NCCNCC 2022 Vol 1, G5D2NCC 2022 Vol 2, H7D4NCC 2022 Vol 3, S1
- Where reticulated water is not availableNSW 2019 Planning for Bushfire Protection, 6.8.3
- 65mm Storz outlet located within IPA or on non-hazard side of building
- Metal or concrete tank
- Stands of non-combustible material or fire-resisting timber
- Metal pipework where exposed
NSW 2019 Planning for Bushfire Protection, 5.3.3
- Available for use by fire fightersNSW 2019 Planning for Bushfire Protection, 5.3.3
- Outlet location protected and accessible
- Hydrants in street if available
- Tank in rural areas
- 5 to 10kl capacity dependent on lot size
- Steel & or buried pipework
-/60/60 FRL
NSW 2019 Planning for Bushfire Protection, 2.2
Bushfire Prone MappingNSW 2019 Planning for Bushfire Protection, 2.2
- Verify Bushfire Prone Area with your State Bushfire Authority
Vegetation Assessment
Property Boundary
Property Boundary
Edge of Vegetation
Downslope Assessment
AS 3959:2018, 2.2.5
NSW 2019 Planning for Bushfire Protection, 3.2
AS 3959:2018, 2.2.5
Fire Danger Index (FDI)
- Regional climate & weather patterns can vary fire intensity[1]
FDI DEFINITION
NCC 2022 V3
All Building Classes
NCC 2022 G5D2, H7D4, & S1
[2019 G5.1, 3.10.5, Sch 5]
May 2023
NCC 2022 Vol 1, G5D2
NCC 2022 Vol 2, H7D4
NCC 2022 Vol 3, S1
AS 3959:2018, 1.5.14
AS 3959:2018, 2.2.2
- Building elements within Bushfire-Prone Areas to be Bushfire Attack Resistant to NCCNCC 2022 Vol 1, G5D2NCC 2022 Vol 2, H7D4NCC 2022 Vol 3, S1
- Regional climate & weather patterns that vary fire intensityAS 3959:2018, 1.5.14AS 3959:2018, 2.2.2
- Air temperature
- Relative humidity
- Wind speed
- Risks measured
- Chance of starting
- Rate of spread
- Intensity
- Difficulty to suppress
AS 3959:2018, 2.2.2
- Regional climate & weather patterns can vary fire intensityAS 3959:2018, 2.2.2
Vegetation
Vegetation Class ASSESSMENT
NCC 2022 V2
All Building Classes
NCC 2022 G5D2, H7D4, & S1
[2019 G5.1, 3.10.5, Sch 5]
May 2023
NCC 2022 Vol 1, G5D2
NCC 2022 Vol 2, H7D4
NCC 2022 Vol 3, S1
AS 3959:2018, 2.2.3
AS 3959:2018, 2.2.4
- Building elements within Bushfire-Prone Areas to be Bushfire Attack Resistant to the NCCNCC 2022 Vol 1, G5D2NCC 2022 Vol 2, H7D4NCC 2022 Vol 3, S1
- 100m horizontal distance from face of wall or vertical structureAS 3959:2018, 2.2.3AS 3959:2018, 2.2.4
- Includes supporting posts or columns to stairs, decks, carports & verandahs
- Excludes roof overhangs, water & domestic fuel tanks, unroofed pergolas, sun blinds & attached services
- Consider all classes of vegetation when mixed
AS 3959:2018, 2.2.3.1
AS 3959:2018, 2.2.3.2
- Vegetation classes have varying risksAS 3959:2018, 2.2.3.1
- 100m from any vertical structure consideredAS 3959:2018, 2.2.3.2
NSW 2019 Planning for Bushfire Protection, A4.1.1
NSW 2019 Planning for Bushfire Protection, 3.2
Protection Zone (APZ & IPZ)
- Maintained area between building & Classified Vegetation[1][2]
- Width determined by risk
- Within subject property
Inner Protection Area (IPA)
NCC 2022 V2
All Building Classes
NCC 2022 G5D2, H7D4, & S1
[2019 G5.1, 3.10.5, Sch 5]
May 2023
NCC 2022 Vol 1, G5D2
NCC 2022 Vol 2, H7D4
NCC 2022 Vol 3, S1
NSW 2019 Planning for Bushfire Protection, A4.1.1
- Building elements within Bushfire-Prone Areas to be Bushfire Attack Resistant to the NCCNCC 2022 Vol 1, G5D2NCC 2022 Vol 2, H7D4NCC 2022 Vol 3, S1
- The Defendable Space closest to building within an APZNSW 2019 Planning for Bushfire Protection, A4.1.1
- Kept free of combustible items & obstructions
- Minimal vegetation
Asset Protection Zone
NCC 2022 V2
All Building Classes
NCC 2022 G5D2, H7D4, & S1
[2019 G5.1, 3.10.5, Sch 5]
May 2023
NCC 2022 Vol 1, G5D2
NCC 2022 Vol 2, H7D4
NCC 2022 Vol 3, S1
NSW 2019 Planning for Bushfire Protection, 3.2
NSW 2019 Planning for Bushfire Protection, A4.1
- Building elements within Bushfire-Prone Areas to be Bushfire Attack Resistant to the NCCNCC 2022 Vol 1, G5D2NCC 2022 Vol 2, H7D4NCC 2022 Vol 3, S1
- Defines the defendable area within your building and the classified vegetationNSW 2019 Planning for Bushfire Protection, 3.2NSW 2019 Planning for Bushfire Protection, A4.1
- Width determined by the risk
- Free from combustible elements
- Keep vegetation maintained
NSW 2019 Planning for Bushfire Protection, A4.1
NSW 2019 Planning for Bushfire Protection, A4.1.1
- Maintained area between building & Classified VegetationNSW 2019 Planning for Bushfire Protection, A4.1NSW 2019 Planning for Bushfire Protection, A4.1.1
- Width determined by risk
- Within subject property
AS 3959:2018, 2.2.3.1
Downslope Angle
- 100m average Terrain slope[1]
- Measured from the edge of Classified Vegetation
Downslope Angle ASSESSMENT
NCC 2022 V1
All Building Classes
NCC 2022 G5D2, H7D4, & S1
[2019 G5.1, 3.10.5, Sch 5]
May 2023
NCC 2022 Vol 1, G5D2
NCC 2022 Vol 2, H7D4
NCC 2022 Vol 3, S1
AS 3959:2018, 2.2.5
- Building elements within Bushfire-Prone Areas to be Bushfire Attack Resistant to the NCCNCC 2022 Vol 1, G5D2NCC 2022 Vol 2, H7D4NCC 2022 Vol 3, S1
- 100m from edge of Classified VegetationAS 3959:2018, 2.2.5
- Where more than one slope angle
- Measure each slope individually
- Worst case BAL shall apply
- 0° if flat or climbing away
AS 3959:2018, 2.2.5
- 100m average Terrain slopeAS 3959:2018, 2.2.5
- Measured from the edge of Classified Vegetation
Rainwater
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