Building in Bushfire-Prone Areas in NSW
Large areas of New South Wales are designated as bushfire-prone land, and in many parts of regional and coastal NSW the designation covers entire suburbs and rural areas. If you are planning to build a house on land that sits within this designation, the planning and construction pathway in NSW carries a set of requirements that sit on top of the national building standards – additional approvals, specific referral processes, vegetation management rules and construction detailing that go beyond what the National Construction Code prescribes on its own.
This article explains the NSW-specific framework for building on bushfire-prone land. It covers how to find out whether your land is designated, which approval pathway applies to your project, the role of the NSW Rural Fire Service, how asset protection zones work, and what the 10/50 vegetation clearing scheme allows you to do. For the national construction standard itself – AS 3959 and how it connects to the NCC – see our separate article on AS 3959 and the NCC.
How to Check Whether Your Land Is Bushfire-Prone
In NSW, the question of whether your land is bushfire-prone is answered by a single document: the Bush Fire Prone Land (BFPL) map, certified by the Commissioner of the NSW Rural Fire Service. Every local council in NSW maintains a version of this map, and it is updated regularly to reflect changes in vegetation cover.
The map classifies land into three vegetation categories and a buffer zone.
Category 1 (highest risk). Forest, woodland, heath and forested wetlands greater than one hectare in size. This is the highest hazard classification.
Category 2. Moist forests, shrubland, open woodlands, mallee, grasslands, and pockets of Category 1 vegetation less than one hectare.
Category 3. Grassland, freshwater wetlands, semi-arid woodlands, alpine complex and arid shrublands. This is a medium-risk classification – higher than Category 2 for fire behaviour but lower than Category 1 for radiant heat exposure.
Vegetation buffer. Land directly adjoining bushland that does not carry classified vegetation itself but sits close enough to be affected by fire on the adjacent land.
If your property falls within any of these categories or the buffer zone, it is bushfire-prone land, and the full suite of planning and construction requirements applies.
You can check your property’s designation in several ways.
The NSW Planning Portal Spatial Viewer. The NSW Government’s Planning Portal includes a spatial viewer that lets you search by address and toggle on the bushfire-prone land layer. This is the most accessible online tool and shows the vegetation categories in colour.
Your local council’s mapping system. Many councils maintain their own online mapping tools where the BFPL map is available as a layer.
Section 10.7 planning certificate. When you buy land or request a planning certificate from council, section 10.7(2) of the Environmental Planning and Assessment Act 1979 requires the certificate to state whether the land is bushfire-prone. This is a formal, legal confirmation.
The NSW RFS website. The RFS maintains a direct link to the certified BFPL data.
The BFPL designation is not the same as a BAL rating. The map tells you that your land is subject to bushfire planning requirements. The BAL rating – the Bushfire Attack Level that determines construction requirements – is a separate site-specific assessment done later in the process, based on the vegetation type, slope and distance from your building footprint to the classified vegetation.
The Legislative Framework
Building on bushfire-prone land in NSW sits at the intersection of three pieces of legislation and one statutory planning document.
The Environmental Planning and Assessment Act 1979 (EP&A Act). Section 4.14 is the central provision. It restricts the granting of development consent on bushfire-prone land unless the consent authority is satisfied that the development conforms to the specifications and requirements of the document known as Planning for Bush Fire Protection, or has consulted the NSW Rural Fire Service. This applies to both development applications (DAs) processed by council and complying development certificates (CDCs) issued by private certifiers.
The Rural Fires Act 1997. Section 100B creates the mechanism for a “bush fire safety authority” – a formal concurrence from the NSW RFS that certain types of development on bushfire-prone land are acceptable. This applies to subdivisions and to developments classified as “special fire protection purpose” (schools, hospitals, aged care facilities, childcare centres and tourist accommodation).
The Environmental Planning and Assessment Regulation 2021. The regulation contains the detailed procedural requirements for how bushfire-prone land is identified, how development applications on that land are assessed, and the documentation that must accompany applications.
Planning for Bush Fire Protection (PBP) 2019. This is the statutory document produced by the NSW RFS that sits underneath section 4.14 of the EP&A Act. It contains the specifications and requirements for development on bushfire-prone land – not the construction standard (that is AS 3959 in the NCC), but the planning requirements: setbacks from vegetation, asset protection zones, access road design, water supply for firefighting, landscaping standards, and the methodology for classifying vegetation and assessing bushfire risk at the planning stage. PBP 2019 replaced PBP 2006 and took effect on 1 March 2020.
The current PBP is under review. The NSW RFS released a draft rewrite for public consultation from August to September 2026, with a final version expected by December 2026. Key proposed changes include a 1.5-metre firebreak requirement around buildings, a simplified fire weather classification (reducing the number of Fire Danger Index categories from three to two), and the consolidation of asset protection zone standards into a single management standard. The draft has no legal effect until formally adopted – PBP 2019 remains the operative document.
The Approval Pathway: DA or CDC
Every residential building project in NSW follows one of two approval pathways: a development application (DA) assessed by the local council, or a complying development certificate (CDC) issued by a private accredited certifier or council. On bushfire-prone land, the pathway available to you depends on the BAL rating of your site.
BAL-29 or lower (BAL-LOW through BAL-29). You can use either pathway. A CDC is generally faster – a private certifier can issue one in as few as 10 to 20 days, compared with 80 or more days for a DA through council. To use the CDC pathway on bushfire-prone land, you need a BAL certificate confirming your site is rated BAL-29 or below, and your development must comply with the relevant provisions of the State Environmental Planning Policy (Exempt and Complying Development Codes) 2008 – commonly called the Codes SEPP – including the bushfire-specific requirements set out in PBP 2019.
BAL-40 or BAL-FZ (Flame Zone). The CDC pathway is not available. You must lodge a development application with your local council. Complying development cannot occur on land identified as high bush fire risk at BAL-40 or BAL-FZ.
This threshold is important because it directly affects the timeline and cost of the approval process. A project at BAL-29 can be approved through a CDC in a few weeks. The same project at BAL-40 – which might be only a few metres of additional vegetation setback – requires a full DA, council assessment, and potentially RFS referral, adding months to the programme.
When the RFS must be involved. For most residential buildings on bushfire-prone land, the consent authority (council or certifier) assesses the application against PBP 2019 without referring it to the RFS. However, two categories of development trigger a mandatory referral to the RFS under section 100B of the Rural Fires Act.
Subdivisions on bushfire-prone land. Any application to subdivide land that is designated as bushfire-prone requires a section 100B bush fire safety authority from the NSW RFS before council can grant consent. This is processed as “integrated development” under the EP&A Act, meaning the RFS is a formal concurrence authority whose conditions must be incorporated into any consent.
Special fire protection purpose developments. These are developments that serve vulnerable populations or create particular evacuation challenges – schools, hospitals, aged care facilities, childcare centres, tourist accommodation and similar uses. These also require a section 100B authority.
For a standard residential dwelling on an existing lot, the RFS referral is typically not required. The consent authority applies PBP 2019 directly. But if your project involves subdividing the land first, the RFS becomes a statutory party to the approval.
Getting a BAL Assessment
A BAL assessment is a site-specific evaluation that determines your Bushfire Attack Level – the rating that drives both the approval pathway and the construction requirements. In NSW, the assessment must be carried out by a person recognised by the NSW RFS as a suitably qualified consultant in bush fire risk assessment, or by the local council.
The assessment follows the methodology in Section 2 of AS 3959:2018 and evaluates four factors.
Vegetation type. The assessor classifies the vegetation surrounding the site according to the categories in AS 3959 – forest, woodland, shrubland, scrub, mallee/mulga, rainforest, or grassland. The classification determines the flame temperature and fire intensity used in the radiant heat calculation.
Distance to vegetation. The distance is measured from the proposed building footprint to the nearest edge of the classified vegetation. Greater distance means lower radiant heat exposure and a lower BAL rating.
Effective slope. The slope of the land beneath the vegetation, measured from the building towards the vegetation. Downslope vegetation produces a faster-running, more intense fire, which increases the BAL rating. Flat or upslope vegetation is less severe.
Fire Danger Index (FDI). The FDI for the fire weather district where the property is located. NSW currently uses three FDI values depending on the district – 80, 100 or 120. These feed directly into the radiant heat calculation.
The assessment produces a BAL rating – BAL-LOW, BAL-12.5, BAL-19, BAL-29, BAL-40 or BAL-FZ – and a certificate documenting the rating, the methodology used, and the site conditions at the time of assessment.
Cost. A standard residential BAL assessment in NSW typically costs between $300 and $800 for a straightforward lot. Complex sites – steep terrain, multiple vegetation types, irregular building footprints – can cost $800 to $2,000 or more.
Validity. BAL certificates generally have a 12-month recommended validity period. If site conditions change – vegetation is cleared or regrows, or the BFPL map is updated – the certificate may need to be renewed.
A practical note. The BAL rating is sensitive to the distance between the building and the vegetation. On many sites, the difference between BAL-29 and BAL-40 comes down to a few metres of separation. Because this threshold determines whether you can use the CDC pathway or must lodge a DA, it is worth discussing building placement with your assessor early in the design process – before the building footprint is fixed. Moving the house a few metres further from the vegetation edge can sometimes reduce the BAL rating by one level and open the faster approval pathway.
Asset Protection Zones
An asset protection zone (APZ) is a managed area of land surrounding a building that reduces the bushfire threat by limiting the fuel available to a fire as it approaches. PBP 2019 divides the APZ into two sub-zones.
Inner Protection Area (IPA). The zone immediately surrounding the building. This area must be managed to a high standard: minimal vegetation, no stored combustible materials, no garden beds with dense planting against the building, and specific requirements for tree canopy separation and understorey management. The IPA is the primary buffer between the building and a fire front.
Outer Protection Area (OPA). The zone beyond the IPA, extending to the edge of the APZ. Management in the OPA is less intensive but still requires reduced fuel loads – mowed grass, removed dead material, managed understorey and limits on canopy density.
The required width of the APZ depends on the vegetation category, the slope, and the BAL outcome specified for the development. PBP 2019 contains tables that set out the minimum setback distances for each combination. In general, higher-hazard vegetation (Category 1 forest on a steep downslope) requires a wider APZ than lower-hazard vegetation (grassland on flat terrain).
APZs must be maintained for the life of the development, not just established at the time of construction. PBP 2019 requires that APZs be “maintained in perpetuity,” and this is typically imposed as a condition of development consent. On a standard residential lot, the APZ usually sits within the property boundary. For subdivisions, the APZ requirements are built into the lot layout and road design at the planning stage.
The draft PBP rewrite proposes consolidating the IPA and OPA into a single APZ management standard, and adding a 1.5-metre firebreak immediately around the building as a new requirement. This would affect landscaping, paving and fencing placement, particularly on narrow lots. The changes are not yet in effect.
The 10/50 Vegetation Clearing Scheme
The 10/50 scheme is a NSW-specific provision that allows property owners in designated areas to clear vegetation near their homes without council approval for bushfire protection. It operates under the 10/50 Vegetation Clearing Code of Practice, established under section 100Q of the Rural Fires Act 1997 following the 2013 bushfire season.
The scheme creates two clearing zones, measured from the external walls of a lawfully constructed building with an occupation certificate.
Within 10 metres. You may clear all vegetation on your property, including trees, without seeking council approval. There is no restriction on what can be removed in this zone – the intent is to create a cleared buffer immediately around the building.
Within 50 metres (beyond the 10-metre zone). You may clear understorey vegetation – shrubs, scrub and ground fuel – but not trees. The Code of Practice defines a “tree” as a perennial woody plant three or more metres tall with at least one self-supporting trunk exceeding 30 centimetres in circumference at 1.3 metres above ground. Anything smaller than this definition – lower shrubs, saplings with thinner trunks, vines and groundcover – can be removed in the 50-metre zone. The intent is to reduce the fuel load that would carry a fire to the building while preserving the mature tree canopy.
The scheme does not apply everywhere. Your property must be within a designated 10/50 Vegetation Clearing Entitlement Area, which you can check using the online tool on the NSW RFS website. The tool must be checked on the day of clearing, because entitlement areas can change.
Conditions and exclusions. The 10/50 entitlement does not override every other protection. The following cannot be cleared under the scheme.
- Vegetation on slopes exceeding 18 degrees, unless a geotechnical assessment confirms it is safe to do so
- Vegetation within 10 metres of a river, creek or lake that is two or more metres wide
- Mangroves and saltmarsh
- Aboriginal scarred trees and Aboriginal Places
- Heritage-listed items (state or local)
- Critical habitat and critically endangered ecological communities identified under the Biodiversity Conservation Act 2016
- Wetlands and rainforest
Heavy machinery that disturbs soil – bulldozers, graders, ploughs – cannot be used. Ground cover must be maintained for erosion control. Burning is not permitted under this scheme. Property owners retain liability for any erosion, landslip or harm to protected wildlife that results from clearing.
The practical value. For owner-builders on bushfire-prone land, the 10/50 scheme is one of the few mechanisms that allows immediate, proactive vegetation management without navigating a separate approval process. It does not replace the APZ requirements in a development consent – those are conditions of the consent and must be maintained regardless – but it provides a parallel right to manage vegetation around an existing building.
Construction Requirements by BAL Level
Once your BAL rating is determined, the construction requirements for your house are set by AS 3959:2018, referenced through the NCC. The requirements are cumulative – each higher BAL level adds to the requirements of the level below.
BAL-LOW. No specific bushfire construction requirements. Standard NCC construction applies.
BAL-12.5. The building must resist ember attack. Practical changes include ember-proof mesh (2mm aluminium or bronze) over all openings and vents, tempered glass in windows, sealed gaps in external wall cladding, and non-combustible sarking under roofing.
BAL-19. Adds resistance to increasing levels of ember attack and burning debris, plus a modest level of radiant heat exposure (up to 19 kW/m2). External wall cladding systems face tighter restrictions, glazing requirements increase, and gaps in construction must be sealed more rigorously.
BAL-29. A significant step up. External walls must be non-combustible or tested to a higher fire resistance standard. Windows require toughened glass as a minimum. Roof systems must include sarking with ember-proof mesh at all openings. Subfloor spaces (if the building is not on a slab) must be enclosed with non-combustible material. This is the last BAL level at which complying development is available in NSW.
BAL-40. Requires fully non-combustible external construction, enclosed subfloors, sealed roof-to-wall junctions, and fire-resistant glazing throughout. Sprinkler systems are often required. The CDC pathway is closed at this level – a full DA is required.
BAL-FZ (Flame Zone). The building is subject to direct flame contact. Construction requires comprehensive fire-rated systems – steel or concrete framing, fire-rated wall and roof assemblies, and often a performance-based engineering solution designed by a specialist. The cost premium is substantial.
For a detailed breakdown of what AS 3959 requires at each level, see our separate article on AS 3959 and the NCC.
Planning a build in a bushfire-prone area?
iBuild supplies kit homes rated to every BAL level, from BAL‑LOW through to BAL‑FZ. Talk to our team about your site requirements and get a tailored quote.
Common Mistakes and Misconceptions
Confusing the BFPL map with a BAL rating. The bush fire prone land map tells you that your land is subject to bushfire planning requirements. It does not tell you what your BAL rating is. The BAL is a separate, site-specific assessment that comes later, and the result depends on the building’s position on the lot, not just the lot’s designation on the map.
Assuming complying development is available at any BAL level. It is not. BAL-40 and BAL-FZ sites must go through a full development application. This catches people who have purchased land and assumed a fast-track approval, only to discover their site requires the longer DA process.
Clearing vegetation without checking the 10/50 entitlement area. The 10/50 scheme does not apply to all bushfire-prone land – only to designated entitlement areas. Clearing outside those areas without council approval is an offence. The entitlement must be checked on the day of clearing, not in advance.
Overlooking the APZ maintenance obligation. The asset protection zone is not a one-time clearing exercise at the time of construction. It is a condition that attaches to the land and must be maintained in perpetuity. Failure to maintain the APZ can affect insurance cover and may constitute a breach of the development consent.
Treating the BAL assessment as a formality. The BAL rating directly affects your construction cost. The difference between BAL-12.5 and BAL-29 can add $15,000 to $30,000 to the build. Engaging the assessor before the building footprint is finalised gives you the opportunity to optimise the building position and potentially reduce the rating.
Assuming BAL-29 and BAL-40 are equivalent. The jump from BAL-29 to BAL-40 is the most consequential threshold in the system. It changes the approval pathway (CDC to DA), the construction standard, the cost premium, and often the insurance terms. On borderline sites, a few metres of additional setback can make the difference.
Worked Example
Consider an owner-builder planning a three-bedroom kit home on a 2,000 m2 block in the NSW Mid North Coast region. The block backs onto eucalyptus forest.
Step 1 – check the BFPL map. The planning portal confirms the lot is mapped as Category 1 bushfire-prone land. A section 10.7 planning certificate from council confirms the same.
Step 2 – engage a BAL assessor. An RFS-recognised consultant inspects the site. The forest is classified as Group A (forest) vegetation under AS 3959. The slope is flat to slightly downhill toward the vegetation. The nearest forest edge is 25 metres from the proposed building footprint. The Fire Danger Index for the district is 100. The assessment returns BAL-29.
Step 3 – choose the approval pathway. BAL-29 allows a CDC. The owner-builder engages a private certifier. With the BAL certificate, bushfire compliance documentation and plans showing compliance with PBP 2019 APZ requirements, the CDC is issued in 14 days.
Step 4 – establish the APZ. The IPA is established within the property boundary – managed lawn, no dense garden beds against the building, tree canopy separated and understorey cleared. The OPA extends to the property boundary on the bush side.
Step 5 – build to BAL-29. The kit home is supplied and constructed with non-combustible cladding, toughened glass throughout, ember-proof mesh to all vents and openings, sarked roof with sealed junctions, and enclosed subfloor. The additional construction cost for BAL-29 compliance is approximately $25,000 over a BAL-LOW build.
Step 6 – maintain the APZ. After occupation, the owner-builder maintains the APZ to PBP 2019 standards. Additionally, because the property is in a 10/50 entitlement area (confirmed via the RFS tool), they can manage trees within 10 metres and understorey within 50 metres of the house without seeking separate council approval.
Frequently Asked Questions
Does bushfire-prone land designation affect the value of my land?
The designation itself does not reduce the value in a formal planning sense, but it does affect what you can build and at what cost. Buyers should factor in the cost of BAL-compliant construction and the potential for a longer approval process. Insurance premiums on bushfire-prone land are also higher, and at higher BAL levels some insurers restrict cover or increase excesses.
Can I reduce my BAL rating?
The BAL rating is based on the conditions at the time of assessment. If you can increase the distance between the building and the classified vegetation – by repositioning the building on the lot, or by lawfully managing vegetation within your property – you may achieve a lower rating. Any vegetation management must comply with local council requirements and, where applicable, the 10/50 scheme or a separate vegetation management plan.
Do I need a BAL assessment if my property is in the buffer zone?
Yes. Land within the vegetation buffer on the BFPL map is still designated as bushfire-prone land, and development on it must comply with PBP 2019. A BAL assessment is required to determine the construction standard. Many buffer zone properties receive a BAL-LOW rating, meaning no additional construction requirements apply, but the assessment must still be done.
What if my BAL rating changes between buying the land and building?
BAL certificates have a recommended validity period of 12 months. If vegetation conditions change materially – the BFPL map is updated, vegetation grows or is cleared on neighbouring land – a new assessment may return a different rating. This is a risk on long lead-time projects and one reason to commission the assessment as close to the development application as practical.
Does the 10/50 scheme apply to my property even if I have not built yet?
No. The 10/50 entitlement is measured from a lawfully constructed building with an occupation certificate. If you have not yet built, you cannot use the 10/50 scheme. Vegetation management at the pre-construction stage is governed by your development consent conditions and, where required, a vegetation management plan approved by council.
Is PBP 2019 changing?
The NSW RFS released a draft rewrite of PBP for public consultation in 2026, with a final version expected by December 2026. Proposed changes include a new 1.5-metre firebreak around buildings, simplified fire weather districts, and consolidated APZ standards. These changes would affect BAL calculations and construction costs for new projects. Until the revised PBP is formally adopted, PBP 2019 remains the operative document.
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Glossary
APZ (Asset Protection Zone). A managed area of land surrounding a building designed to reduce the bushfire threat by limiting available fuel. Divided into an Inner Protection Area and an Outer Protection Area under PBP 2019.
BAL (Bushfire Attack Level). A classification system defined in AS 3959 that rates the severity of potential bushfire attack a building may face. Ranges from BAL-LOW (no specific requirements) to BAL-FZ (flame zone – direct flame contact). The BAL determines the construction requirements for the building.
BFPL (Bush Fire Prone Land). Land designated on a map certified by the NSW RFS Commissioner as being subject to or capable of supporting a bushfire. Development on BFPL must comply with PBP 2019.
CDC (Complying Development Certificate). A fast-track approval pathway for development that meets pre-set standards. Available on bushfire-prone land for sites rated BAL-29 or below.
DA (Development Application). The standard planning approval pathway, assessed by the local council. Required for all development on bushfire-prone land rated BAL-40 or BAL-FZ.
EP&A Act (Environmental Planning and Assessment Act 1979). The primary planning legislation in NSW. Section 4.14 restricts development consent on bushfire-prone land.
FDI (Fire Danger Index). A numerical measure of fire weather severity used in BAL calculations. NSW fire weather districts are assigned FDI values of 80, 100 or 120.
IPA (Inner Protection Area). The zone immediately surrounding a building within the APZ, managed to the highest fuel-reduction standard.
OPA (Outer Protection Area). The zone beyond the IPA within the APZ, managed to a lower but still specified fuel-reduction standard.
PBP (Planning for Bush Fire Protection). The statutory document produced by the NSW RFS under section 4.14 of the EP&A Act. Contains the planning requirements for development on bushfire-prone land. The current version is PBP 2019.
Section 100B. A provision of the Rural Fires Act 1997 requiring a “bush fire safety authority” from the NSW RFS for subdivisions and special fire protection purpose developments on bushfire-prone land.
10/50 scheme. A NSW provision allowing property owners in designated areas to clear trees within 10 metres and understorey vegetation within 50 metres of a lawfully constructed building, without council approval.
Sources
- NSW Rural Fire Service, “Building in a bush fire area” and “Planning for Bush Fire Protection” (rfs.nsw.gov.au)
- NSW Rural Fire Service, “10/50 Vegetation Clearing” and 10/50 Vegetation Clearing Code of Practice (rfs.nsw.gov.au)
- NSW Rural Fire Service, Practice Note 3/12: BAL and Complying Development Certificate Checklist (rfs.nsw.gov.au)
- NSW Rural Fire Service, Fast Fact 1/12: Application of Section 100B (rfs.nsw.gov.au)
- NSW Department of Planning, Housing and Infrastructure, “Development regulations – Bushfires” (planning.nsw.gov.au)
- Environmental Planning and Assessment Act 1979, section 4.14
- Rural Fires Act 1997, section 100B
- AS 3959:2018, Construction of buildings in bushfire-prone areas (Standards Australia)
- Lindsay Taylor Lawyers, “Commencement of Planning for Bushfire Protection 2019” (lindsaytaylorlawyers.com.au)
This article does not constitute legal, planning or engineering advice. Requirements vary by location, and regulations are updated periodically. Confirm all requirements with your local council, the NSW RFS and a qualified professional before proceeding with development on bushfire-prone land.
Reviewed by M. Zeng, M. Eng. September 2026