Grange Planning Brain

title: Bushfire Management and Strategic Bushfire Planning Constraints council: ballarat state: vic category: constraint classification: MAJOR status: in-progress last_compiled: 2026-05-31 source_docs:

  • Ballarat-North-PSP-Bushfire-Development-Report-and-Risk-Assessment-Ecology-and-Heritage-Partners-July-2024.pdf
  • Ballarat-North-PSP-Bushfire-Development-Report-Terramatrix-August-2025.pdf
  • web-research-L1-bushfire-planning-mysay-s3.txt
  • web-research-L1-wrl-chapter-bushfire-ausnet.txt
  • web-research-L1-wrl-tech-bushfire-ausnet.txt

Bushfire Management and Strategic Bushfire Planning Constraints

Bushfire is a binding design constraint for Ballarat North PSP rather than a prohibition on urban growth: the available reports conclude that development can proceed if settlement layout, vegetation management, access, water supply and statutory controls keep future buildings at BAL-12.5 or lower (Source: Ballarat-North-PSP-Bushfire-Development-Report-Terramatrix-August-2025.pdf, p.66). The main planning mechanism is simple in effect: keep homes, schools and other sensitive uses far enough from classified grassland, woodland, scrub and forest so that radiant heat exposure stays within the Clause 13.02-1S settlement-planning threshold (Source: Ballarat-North-PSP-Bushfire-Development-Report-Terramatrix-August-2025.pdf, p.57).

Background

City of Ballarat commissioned municipal-scale strategic bushfire planning to embed bushfire risk into early strategic planning and planning scheme amendments, including the assessment of alternative locations for growth and direction of growth to lower-risk locations (Source: web-research-L1-bushfire-planning-mysay-s3.txt). That municipal work identifies lower-risk urban growth locations as areas with limited exposure to large landscape-scale bushfire, minimal potential for neighbourhood-scale destruction, and access to existing or future low-fuel shelter options (Source: web-research-L1-bushfire-planning-mysay-s3.txt).

The Ballarat North PSP bushfire evidence then applies that municipal logic at precinct scale: the Ecology and Heritage Partners 2024 assessment covered 104 contiguous parcels across Mount Rowan and Miners Rest, with an approximately 832 ha study area comprising 561 ha in the core area and 271 ha in the expanded area (Source: Ballarat-North-PSP-Bushfire-Development-Report-and-Risk-Assessment-Ecology-and-Heritage-Partners-July-2024.pdf, p.5). The Terramatrix 2025 report narrows the active PSP analysis to the approximately 561 ha Ballarat North precinct, where the draft Place Based Plan provides for approximately 6,000 lots and may be supplemented by an expanded area of approximately 2,600-3,500 lots immediately to the north (Source: Ballarat-North-PSP-Bushfire-Development-Report-Terramatrix-August-2025.pdf, p.6).

Analysis

Strategic Risk Position

The under-the-hood mechanism is that Ballarat North sits beside a large existing urban area, so the settlement edge can convert much of the current grassland fuel into low-threat urban land while retaining controlled buffers to enduring hazards (Source: Ballarat-North-PSP-Bushfire-Development-Report-Terramatrix-August-2025.pdf, p.67). The 2025 report describes the precinct as a low bushfire risk landscape because the main threatening directions, north, north-west, west and south-west, are generally pastoral or already urban rather than continuous forest (Source: Ballarat-North-PSP-Bushfire-Development-Report-Terramatrix-August-2025.pdf, p.66).

The 2024 report reaches the same strategic conclusion in different terms: a landscape-scale fire from the south-west is extremely unlikely to impact the study area except through embers because urban surfaces replace fuel south and west of the precinct, while a fire from the north-west is more plausible but still reduced by roads, ornamental gardens and managed lawns (Source: Ballarat-North-PSP-Bushfire-Development-Report-and-Risk-Assessment-Ecology-and-Heritage-Partners-July-2024.pdf, p.4). The practical planning implication is that bushfire risk is concentrated at interfaces with remaining vegetation rather than spread evenly across the future urban area (Source: Ballarat-North-PSP-Bushfire-Development-Report-Terramatrix-August-2025.pdf, p.66).

Statutory Controls

All land in the Ballarat North precinct is currently designated as a Bushfire Prone Area, and land within approximately 150 m of the Ballarat North Water Reclamation Plant is also covered by the Bushfire Management Overlay (Source: Ballarat-North-PSP-Bushfire-Development-Report-Terramatrix-August-2025.pdf, p.66). The 2025 report states that approximately 50 ha adjacent to the Ballarat North Water Reclamation Plant is covered by the BMO (Source: Ballarat-North-PSP-Bushfire-Development-Report-Terramatrix-August-2025.pdf, p.6).

The BMO is not treated as a whole-precinct constraint because the mapped extreme hazard is associated with the Water Reclamation Plant pine plantations rather than the whole growth area (Source: Ballarat-North-PSP-Bushfire-Development-Report-and-Risk-Assessment-Ecology-and-Heritage-Partners-July-2024.pdf, p.4). The 2024 report concludes that the existing BMO extent over the Ballarat North Water Reclamation Plant and approximately 150 m into the study area is appropriate, while a revegetated Burrumbeet Creek corridor would not justify applying the BMO because a linear forest corridor would not constitute an extreme bushfire hazard (Source: Ballarat-North-PSP-Bushfire-Development-Report-and-Risk-Assessment-Ecology-and-Heritage-Partners-July-2024.pdf, p.4).

The 2025 report adds a statutory implementation pathway: BAL-12.5 parts of the precinct affected by the BMO are suitable for Schedule 1 to the BMO, with BMO1 applying a BAL-12.5 dwelling construction standard and defendable space for 30 m or to the property boundary, whichever is lesser (Source: Ballarat-North-PSP-Bushfire-Development-Report-Terramatrix-August-2025.pdf, p.67). This means the BMO edge is not only a hazard map; it is a future subdivision design test requiring building envelopes to sit far enough from classified forest to satisfy BAL-12.5 (Source: Ballarat-North-PSP-Bushfire-Development-Report-Terramatrix-August-2025.pdf, p.67).

Setbacks and Developable Land Effects

The key numeric constraint is the BAL-12.5 setback table because it turns vegetation type and slope into a no-building or low-threat-buffer requirement (Source: Ballarat-North-PSP-Bushfire-Development-Report-Terramatrix-August-2025.pdf, p.66). On flat land and upslopes, BAL-12.5 requires 19 m from grassland, 27 m from scrub, 33 m from woodland and 48 m from forest (Source: Ballarat-North-PSP-Bushfire-Development-Report-Terramatrix-August-2025.pdf, p.66). On downslopes greater than 0-5 degrees, BAL-12.5 requires 22 m from grassland, 31 m from scrub, 41 m from woodland and 57 m from forest (Source: Ballarat-North-PSP-Bushfire-Development-Report-Terramatrix-August-2025.pdf, p.66).

The 2024 report used a similar but slightly different slope treatment, including 19 m from flat grassland, 25 m from grassland on downslopes greater than 5-10 degrees, 27 m from scrub, 33 m from woodland and 48 m from forest (Source: Ballarat-North-PSP-Bushfire-Development-Report-and-Risk-Assessment-Ecology-and-Heritage-Partners-July-2024.pdf, p.11). The difference matters because the later Terramatrix report appears to refine the slope classes to flat/upslopes and downslopes greater than 0-5 degrees for the active precinct, while the earlier EHP assessment included steeper Mount Rowan slope treatment and the expanded area (Source: Ballarat-North-PSP-Bushfire-Development-Report-Terramatrix-August-2025.pdf, p.66; Source: Ballarat-North-PSP-Bushfire-Development-Report-and-Risk-Assessment-Ecology-and-Heritage-Partners-July-2024.pdf, p.11).

The developable-land consequence is not a single precinct-wide land take but a series of interface controls: setbacks can be absorbed by roads, low-threat public open space, managed parkland, building-envelope controls or formal low-threat buffers on adjoining land (Source: Ballarat-North-PSP-Bushfire-Development-Report-Terramatrix-August-2025.pdf, p.57). Where the setback is not absorbed by public land or roads, lots beside grassland, Burrumbeet Creek, Mount Rowan regional open space or the Water Reclamation Plant must push building envelopes away from the hazard (Source: Ballarat-North-PSP-Bushfire-Development-Report-Terramatrix-August-2025.pdf, p.58).

Burrumbeet Creek and Environmental Constraint Interaction

Burrumbeet Creek is a combined biodiversity, drainage, open-space and bushfire interface because its future vegetation form determines whether adjoining buildings face grassland, scrub, woodland or forest setback requirements (Source: Ballarat-North-PSP-Bushfire-Development-Report-Terramatrix-August-2025.pdf, p.27). The 2025 report says the draft plan is likely to include ponds and wetlands outside the 1% flood extent, with mown grass parkland between wetlands and the creek, which could resemble the existing Waterford Drive interface (Source: Ballarat-North-PSP-Bushfire-Development-Report-Terramatrix-August-2025.pdf, p.27).

The 2024 report modelled two Burrumbeet Creek scenarios: existing vegetation with an assumed 4 m unmanaged grass buffer either side of the creek, and a future 30 m revegetated corridor classified as forest at maturity with a 48 m separation distance from the outer edge (Source: Ballarat-North-PSP-Bushfire-Development-Report-and-Risk-Assessment-Ecology-and-Heritage-Partners-July-2024.pdf, p.12). The mechanism is important: revegetation may be acceptable for biodiversity, but if it becomes classified vegetation it pushes the BAL-12.5 building line outward unless the PSP provides a perimeter road or reliably low-threat open-space band (Source: Ballarat-North-PSP-Bushfire-Development-Report-Terramatrix-August-2025.pdf, p.57).

The municipal bushfire strategy warns against open spaces and riparian corridors creating continuous fuel paths into developed areas, which directly applies to Burrumbeet Creek because the corridor links the northern precinct, Ballarat Town Common and the Water Reclamation Plant edge (Source: web-research-L1-bushfire-planning-mysay-s3.txt). The planning test is therefore not whether revegetation occurs, but whether revegetation is spatially arranged so that it does not create an unmanaged fuel corridor into residential blocks (Source: web-research-L1-bushfire-planning-mysay-s3.txt).

Sensitive Uses and Settlement Layout

The draft Place Based Plan shows government school uses in the north-western corner of the precinct, but the 2025 bushfire report states this location would sit on the grassland interface until or unless the expanded area is developed (Source: Ballarat-North-PSP-Bushfire-Development-Report-Terramatrix-August-2025.pdf, p.55). The report states that, if the expanded area is not assured, more suitable school sites appear to exist in lower-risk, more central parts of the precinct (Source: Ballarat-North-PSP-Bushfire-Development-Report-Terramatrix-August-2025.pdf, p.55).

This is one of the clearest cause-and-effect issues in the source set: if the expanded area proceeds early, the school edge may become internalised within a larger urban area; if the expanded area does not proceed, the school remains a sensitive use on a grassland hazard edge (Source: Ballarat-North-PSP-Bushfire-Development-Report-Terramatrix-August-2025.pdf, p.55). The report also states that vulnerable uses such as schools, residential aged care and healthcare should not be sited within BMO coverage (Source: Ballarat-North-PSP-Bushfire-Development-Report-Terramatrix-August-2025.pdf, p.55).

Access and Water Supply

Emergency access is a design constraint rather than a post-approval operational matter because fire trucks need roads that remain passable when cars are parked and when crews need hardstand access (Source: Ballarat-North-PSP-Bushfire-Development-Report-and-Risk-Assessment-Ecology-and-Heritage-Partners-July-2024.pdf, p.16). The 2024 report recommends minimum trafficable widths for two-storey residential areas of 3.5 m with no parking, 5.5 m with parking on one side, or 7.3 m with parking on both sides (Source: Ballarat-North-PSP-Bushfire-Development-Report-and-Risk-Assessment-Ecology-and-Heritage-Partners-July-2024.pdf, p.17). For higher-density areas of three or more storeys, the recommended trafficable widths are 3.5 m with no parking, 5.8 m with parking on one side, or 8.1 m with parking on both sides (Source: Ballarat-North-PSP-Bushfire-Development-Report-and-Risk-Assessment-Ecology-and-Heritage-Partners-July-2024.pdf, p.17).

Perimeter roads are central because they do three jobs at once: they form part of the setback distance, create a firebreak and give emergency vehicles access along the hazard edge (Source: Ballarat-North-PSP-Bushfire-Development-Report-and-Risk-Assessment-Ecology-and-Heritage-Partners-July-2024.pdf, p.17). The most critical perimeter-road location in the 2024 report is along the northern boundary of the Ballarat North Water Reclamation Plant because that interface contains forest vegetation (Source: Ballarat-North-PSP-Bushfire-Development-Report-and-Risk-Assessment-Ecology-and-Heritage-Partners-July-2024.pdf, p.17).

Water supply is comparatively manageable because the reports assume the future urban precinct can be serviced by conventional reticulated hydrants, with Clause 56.09-3 requiring hydrants within 120 m of the rear of each lot and no more than 200 m apart (Source: Ballarat-North-PSP-Bushfire-Development-Report-and-Risk-Assessment-Ecology-and-Heritage-Partners-July-2024.pdf, p.18). Properties inside the BMO adjoining the Ballarat North Water Reclamation Plant will also require static water supplies under Clause 53.02-4.3 (Source: Ballarat-North-PSP-Bushfire-Development-Report-and-Risk-Assessment-Ecology-and-Heritage-Partners-July-2024.pdf, p.18).

The Western Renewables Link is not a Ballarat North PSP control, but it is a regional bushfire-management dependency because it intersects bushfire-prone landscapes, BMO land and municipal fire-management routes across the broader region (Source: web-research-L1-wrl-tech-bushfire-ausnet.txt). The technical report records 11 ha of BMO within the proposed route in the City of Ballarat, 141 ha of BMO within Project Land in the City of Ballarat, and 10,597 ha of BMO within the 20 km study area in the City of Ballarat (Source: web-research-L1-wrl-tech-bushfire-ausnet.txt).

The EES chapter concludes that the project would not materially increase landscape bushfire risk if planned design, construction and operational measures are implemented (Source: web-research-L1-wrl-chapter-bushfire-ausnet.txt). The same chapter identifies a remaining operational issue: a moderate residual impact is expected where the project intersects strategic fire control lines and fuel breaks designated in municipal fire management plans because electrical safety procedures can prevent ground crews from working directly within the transmission line easement (Source: web-research-L1-wrl-chapter-bushfire-ausnet.txt).

For Ballarat planning, the implication is that transmission infrastructure does not change the PSP setback table, but it does sit in the broader emergency-management system that also supports access, egress, suppression and fire-control planning around Ballarat and neighbouring municipalities (Source: web-research-L1-wrl-tech-bushfire-ausnet.txt). This should be treated as a cross-jurisdictional operational constraint rather than a direct rezoning constraint for Ballarat North (Source: web-research-L1-wrl-chapter-bushfire-ausnet.txt).

Current Status

The VPA is preparing the Ballarat North PSP, and the 2025 report states that a staging plan had not yet been developed at the time of writing (Source: Ballarat-North-PSP-Bushfire-Development-Report-Terramatrix-August-2025.pdf, p.6). The 2024 report states that no decision had been made at that time about including the expanded area in the final PSP (Source: Ballarat-North-PSP-Bushfire-Development-Report-and-Risk-Assessment-Ecology-and-Heritage-Partners-July-2024.pdf, p.5). The 2025 report states that CFA had not been consulted on that report and recommends providing the report to CFA so its recommendations can be incorporated into an updated report as appropriate (Source: Ballarat-North-PSP-Bushfire-Development-Report-Terramatrix-August-2025.pdf, p.62).

Dependencies

  • Blocks: Building envelopes, vulnerable-use siting, interface street cross-sections and revegetation design cannot be finalised until the PSP confirms the location and management of Burrumbeet Creek reserves, Water Reclamation Plant interfaces, Mount Rowan open space and northern grassland edges (Source: Ballarat-North-PSP-Bushfire-Development-Report-Terramatrix-August-2025.pdf, p.58).
  • Blocked by: The school siting risk depends on whether the expanded area proceeds, because without that expansion the proposed north-western school remains on a grassland interface (Source: Ballarat-North-PSP-Bushfire-Development-Report-Terramatrix-August-2025.pdf, p.55).
  • Informed by: The constraint page is informed by municipal strategic bushfire planning, the 2024 EHP bushfire risk assessment, the 2025 Terramatrix bushfire development report, and Western Renewables Link EES bushfire material (Source: web-research-L1-bushfire-planning-mysay-s3.txt; Source: Ballarat-North-PSP-Bushfire-Development-Report-and-Risk-Assessment-Ecology-and-Heritage-Partners-July-2024.pdf; Source: Ballarat-North-PSP-Bushfire-Development-Report-Terramatrix-August-2025.pdf; Source: web-research-L1-wrl-chapter-bushfire-ausnet.txt).
  • Implements: The bushfire response implements Clause 13.02-1S by directing growth to lower-risk locations and ensuring future settlement can achieve BAL-12.5 or lower (Source: Ballarat-North-PSP-Bushfire-Development-Report-Terramatrix-August-2025.pdf, p.57).
  • Conflicts with: Riparian revegetation and open-space enhancement can conflict with bushfire objectives if they create continuous fuel paths or require larger setbacks into developable land (Source: web-research-L1-bushfire-planning-mysay-s3.txt; Source: Ballarat-North-PSP-Bushfire-Development-Report-and-Risk-Assessment-Ecology-and-Heritage-Partners-July-2024.pdf, p.12).

Western Renewables Link crosses multiple local government areas and draws on municipal fire management planning for Northern Grampians, Pyrenees, Ballarat, Hepburn and Moorabool in its analysis of fire control lines and fire access roads (Source: web-research-L1-wrl-chapter-bushfire-ausnet.txt). The WRL technical report identifies the City of Ballarat Municipal Fire Management Plan as part of the local government fire-management framework relevant to the project (Source: web-research-L1-wrl-tech-bushfire-ausnet.txt). These links matter because Ballarat bushfire planning is not only a local subdivision-design issue; suppression routes, fire-control lines, transmission easements and regional fire weather all operate across municipal boundaries (Source: web-research-L1-wrl-tech-bushfire-ausnet.txt).

Gaps in This Analysis

The source set is strong on bushfire mechanism and interface design but thin on final statutory implementation because the final PSP, final PBP, amendment documentation, final schedule drafting and adopted staging plan are not included in the manifest (Source: Ballarat-North-PSP-Bushfire-Development-Report-Terramatrix-August-2025.pdf, p.6). The source set does not include the final CFA response to the 2025 Terramatrix report, and the report itself states CFA had not been consulted during its preparation (Source: Ballarat-North-PSP-Bushfire-Development-Report-Terramatrix-August-2025.pdf, p.62). The source set also does not provide parcel-by-parcel land-take calculations for bushfire setbacks, so this page can identify the setback mechanisms but cannot quantify lot-yield loss by parcel (Source: Ballarat-North-PSP-Bushfire-Development-Report-Terramatrix-August-2025.pdf, p.66).

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