your ref - paradiso estate · acceptable solutions of the 4 bushfire protection criteria is...

Our Ref: 21.2017.88 - D19/44871

Your Ref:

Enquiries to: Mr Neels Pretorius

3rd April 2019 Mr James Priestly P O Box 1320 Canning Bridge Applecross WA 6153 Email: [email protected] Dear James Re: Proposed Bushfire Management Plan – Lots 14, 299 and 9010 Kerosene Lane,

Baldivis I refer to your amended Bushfire Management Plan for Lots 14, 299, and 9010 Kerosene Lane, Baldivis received on the 19th March 2019. The Bushfire Management Plan is considered suitable, and has been approved. Please find attached a copy of the approved Bushfire Management Plan. Please note that the Bushfire Management Plan requires the subdivider to prepare section 70A Notifications on all titles to advise owners of the existence of the Bushfire Management Plan; this action should be undertaken prior to the lots being created. In addition, the subdivider is required to provide all owners with a copy of the approved Bushfire Management Plan. Should you have any enquiries with respect to this advice, please contact Mr Neels Pretorius on 9527 0763. Yours faithfully D WALLER CO-ORDINATOR STATUTORY PLANNING cc. [email protected]

Planning Administration Officer Senior Drafting Officer

mailto:[email protected]

mailto:[email protected]

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19/03/2019

Kathryn Kinnear

Bio Diverse Solutions

Bushfire Management Plan

Paradiso Estate Lots 14, 299 and

9010 Kerosene Lane Baldivis

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DOCUMENT CONTROL TITLE Lots 14, 299 and 9010 Kerosene Lane Baldivis Bushfire Management Plan Author (s): Kathryn Kinnear Reviewer (s): Julia Nelson Job No.: TER007 Client: Galati Nominees Pty Ltd

REVISION RECORD

Revision Summary Revised By Date

Draft ID 25/09/2015 Internal QA Review Kathryn Kinnear 22/9/2016 Draft ID 22/09/2015 Issued to client for review J.Nelson 22/9/2016 Final ID 13/6/2017 Issued to client J.Nelson 13/6/2017 Final Id 19/7/2018 Updated with new staging

plan and landscaping plans K.Kinnear 19/7/2018

Final Id 19/3/2019 Updated with new retention basin

K. Kinnear 19/3/2019

The recommendations and measures contained in this assessment report are based on the requirements of the Australian Standards 3959-2009 – Building in Bushfire Prone Areas, WAPC SPP3.7, Guidelines for Planning in Bushfire Prone Areas (WAPC, 2017) and CSIRO’s research into Bushfire behaviour. These are considered the minimum standards required to balance the protection of the proposed dwelling and occupants with the aesthetic and environmental conditions required by local, state and federal government authorities. They DO NOT guarantee that a building will not be destroyed or damaged by a bushfire. All surveys and forecasts, projections and recommendations made in this assessment report and associated with this proposed dwelling are made in good faith on the basis of the information available to the fire protection consultant at the time of assessment. The achievement of the level of implementation of fire precautions will depend amongst other things on actions of the landowner or occupiers of the land, over which the fire protection consultant has no control. Notwithstanding anything contained within, the fire consultant/s or local government authority will not, except as the law may require, be liable for any loss or other consequences (whether or not due to negligence of the fire consultant/s and the local government authority, their servants or agents) arising out of the services rendered by the fire consultant/s or local government authority.

Bio Diverse Solutions 29 Hercules Crescent Albany WA 6330 © Copyright: This document has been prepared by Bio Diverse Solutions for use by the client only, in accordance with the terms of engagement, and only for the purpose for which it was prepared.

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CONTENTS 1. EXECUTIVE SUMMARY ....................................................................................................................... 4 2. INTRODUCTION ................................................................................................................................... 5

2.1.LOCATION ...................................................................................................................................... 5 2.2.DEVELOPMENT PROPOSAL ......................................................................................................... 5 2.3.STATUTORY CONDITIONS ........................................................................................................... 6 2.4.SUITABLY QUALIFIED BUSHFIRE CONSULTANT ...................................................................... 7

3. AIMS OF THIS PLAN ............................................................................................................................ 8 3.1.PLANNING CONTEXT .................................................................................................................... 8 3.2.SITE INSPECTION .......................................................................................................................... 8 3.3.OBJECTIVES .................................................................................................................................. 8

4. SPATIAL CONSIDERATION OF BUSHFIRE THREAT ........................................................................ 9 4.1.GENERAL ........................................................................................................................................ 9 4.2.SURROUNDING LAND USES ........................................................................................................ 9 4.3.TOPOGRAPHY ............................................................................................................................. 11 4.4.BUSHFIRE FUELS – VEGETATION ............................................................................................. 11 4.5.BUSHFIRE ATTACK LEVEL (BAL) ............................................................................................... 18 4.5.1.FIRE DANGER INDEX ............................................................................................................... 18 4.5.2.VEGETATION CLASSES ........................................................................................................... 18 4.5.3.SLOPE UNDER CLASSIFIED VEGETATION............................................................................ 18 4.5.4.METHOD 1 BAL CALCULATION ............................................................................................... 18

5. ASSESSMENT TO THE BUSHFIRE PROTECTION CRITERIA ........................................................ 21 5.1.ELEMENT 1: LOCATION .............................................................................................................. 22 5.1.1.STAGING .................................................................................................................................... 22 5.1.2.RECOMMENDATIONS ARISING FROM ASSESSMENT TO THIS ELEMENT ........................ 24 5.2.ELEMENT 2: SITING AND DESIGN OF DEVELOPMENT ........................................................... 24 5.2.1.RECOMMENDATIONS ARISING FROM ASSESSMENT TO A2 ............................................. 26 5.3.ELEMENT 3: VEHICLE ACCESS - PERFORMANCE CRITERIA ................................................ 26 5.3.1.TWO ACCESS ROUTES (A3.1) ................................................................................................. 26 5.3.2.PUBLIC ROADS (A3.2) .............................................................................................................. 28 5.3.3.CUL DE SACS (A3.3) ................................................................................................................. 28 5.3.4.BATTLE AXES (A3.4) ................................................................................................................. 28 5.3.5.PRIVATE DRIVEWAYS (A3.5) ................................................................................................... 28 5.3.6.EMERGENCY ACCESS WAYS (A3.6) ...................................................................................... 28 5.3.7.FIRE SERVICE ACCESS ROUTES (A3.7) ................................................................................ 28 5.3.8.FIREBREAKS (A3.8) .................................................................................................................. 28 5.3.9.RECOMMENDATIONS ARISING FROM ASSESSMENT TO THIS ELEMENT ........................ 28 5.4.ELEMENT 4 WATER – PERFORMANCE CRITERIA ................................................................... 29 5.4.1.RETICULATED AREAS (A4.1) ................................................................................................... 29 5.4.2.NON-RETICULATED AREAS (A4.2) ......................................................................................... 29 5.4.3.INDIVIDUAL LOTS WITHIN NON-RETICULATED AREAS ....................................................... 29 5.4.4.RECOMMENDATIONS ARISING FROM ASSESSMENT TO THIS ELEMENT ........................ 29 5.5.OTHER FIRE MITIGATION MEASURES ...................................................................................... 30 5.5.1.REDUCTION IN CONSTRUCTION THROUGH SHIELDING .................................................... 30 5.5.2.LANDSCAPING/STREETSCAPING AREAS ............................................................................. 30 5.5.3.EVAPORATIVE AIR CONDITIONERS ....................................................................................... 30 5.5.4.BARRIER FENCING ................................................................................................................... 30 5.5.5.INFORMATION ON BUILDING TO BAL/AS3959-2009 ............................................................. 31

6. SUMMARY AND RECOMMENDATIONS ........................................................................................... 32 6.1.OVERALL FIRE THREAT .............................................................................................................. 32 6.2.FUTURE LOT OWNERS RESPONSIBILITY ................................................................................ 32 6.3.DEVELOPERS RESPONSIBILITY ................................................................................................ 32 6.4.CITY OF ROCKINGHAM RESPONSIBILITY ................................................................................ 33

7. CONCLUSIONS .................................................................................................................................. 34 8. REFERENCES .................................................................................................................................... 35 APPENDICES APPENDIX A – LOCATION MAPPING APPENDIX B –STRUCTURE PLANS, SUBDIVISION PLANS & LANDSCAPING PLANS

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1. Executive Summary Galati Nominees Pty Ltd through Terranovis Pty Ltd commissioned Bio Diverse Solutions (Bushfire Consultants) to conduct a Bushfire Hazard Assessment and prepare a Bushfire Management Plan to guide all future bushfire management for the proposed development at Lots 14, 299 and 9010 Kerosene Lane, Baldivis WA. The structure plan for the development proposes the creation of future lots in the density range of R20-R60 and public open space areas. The publicly released Bushfire Prone Area Mapping (DFES 2017) indicates this area as bushfire prone. To the west and south there is proposed urban development which will reduce the bushfire hazards to this development. To the east are existing urban areas, to the north is Kerosene Lane and commercial development areas. The subject site was assessed as having internal areas of Grassland Type G which is proposed to be cleared for the subdivision. The adjacent land within 100m of the site is Forest Type A, Woodland Type B, Scrub type D and cleared/disturbed paddock areas (Type G). The Bushfire Prone Vegetation within 100m of the site is located within private property north of Kerosene Lane, to the west and south west of the Subject Site. Urban growth is proposed to the east and south and is classified as future “Low Threat Vegetation and Non-Vegetated Areas” (AS3959-2009. Existing urban areas to the east are classified as “Low Threat Vegetation and Non-Vegetated Areas” (AS3959-2009). The majority of the site will be cleared for the subdivision with internal POS areas proposed to be landscaped public reserves (classified as low fuel areas).

An assessment to the WAPC Guidelines for Planning in Bushfire Prone Areas (vers 1.3, 2017) Acceptable Solutions of the 4 bushfire protection criteria is summarised below:

Table 1 – Bushfire protection criteria applicable to the site

Element Acceptable Solution Applicable or not

Yes/No

Meets Acceptable Solution

Element 1 Location

A1.1 Development Location Yes Compliant BAL 29 or less applied to lots

Element 2 – Siting and Design

A2.1 Asset Protection Zone

Yes

Compliant, APZ in BAL 29 or less

Element 3 – Vehicular Access

A3.1 Two Access Routes A3.2 Public Road A3.3 Cul-de-sacs A3.4 Battle axes A3.5 Private driveways A3.6 Emergency Access Ways A3.7 Fire Service Access Ways A3.8 Firebreaks

Yes

Yes No Yes Yes Yes

No

Yes

Compliant 2 access routes to 2 destinations. Compliant

N/A Compliant Compliant

Compliant -temporary along proposed road reserves

N/A

Compliant on parent lot. Element 4 - Water

A4.1 Reticulated areas A4.2 Non-reticulated areas A4.3 Individual lots in non-reticulated areas

Yes No No

Compliant N/A N/A

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2. Introduction Galati Nominees Pty Ltd through Terranovis Pty Ltd commissioned Bio Diverse Solutions (Bushfire Consultants) to prepare a Bushfire Management Plan as part of the planning process for staged subdivision of Lots 14, 299 and 9010 Kerosene Lane, Baldivis. This BMP has been prepared to assess the subject site to the current and endorsed Guidelines for Planning in Bushfire Prone Areas Vers 1.3(WAPC, 2017) and State Planning Policy 3.7 (WAPC, 2015). Such planning takes into consideration standards and requirements specified in various documents such as Australian Standard (AS) 3959-2009, Western Australian Planning Commission (WAPC) Guidelines for Planning in Bushfire Prone Areas Vers 1.3 (WAPC, 2017) and State Planning Policy 3.7 (WAPC, 2015). These policies, plans and guidelines have been developed by WAPC to ensure uniformity to planning in designated “Bushfire Prone Areas” and consideration of the relevant bushfire hazards when identifying or investigating land for future development.

2.1. Location The subject area is described as part locations of 14, 299 and 9010 Kerosene Lane, Baldivis. The subject site is located 10 km east of Rockingham CBD, within the municipality of the City of Rockingham. The subject site is 8.1ha made up of 3 existing lots which was previously used for market gardening activities which have now ceased. Please refer to Figure 1 below - Locality Map, and Site Location Mapping Appendix A.

Figure 1 – Locality Map

2.2. Development proposal

The subdivision of Stage 5 and 6 involves residential development in the density range R20-R60, construction of public roads and Public Open Space areas (POS). Please refer to the approved WAPC subdivision Stage 5 and 6 Paradiso Estate in Appendix B. Adjacent properties to the west are proposed urban areas, refer to Appendix B for plans of subdivision associated with these.

Subject area locality, Lots 14, 299 & 9010 Kerosene Lane Baldivis.

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2.3. Statutory Conditions This document and the recommendations contained within are aligned to the following policy and guidelines:

• Planning and Development Act 2005; • Planning and Development Regulations 2009; • Planning and Development (Local Planning Scheme) Regulations 2015; • State Planning Policy 3.7 Planning in Bushfire Prone Areas; • Guidelines for Planning in Bushfire Prone Areas; • Building Act 2011; • Building Regulations 2012; • Building code of Australia (National Construction Code); • Fire and Emergency Services Act 1998. • AS 3959-2009 “Construction of Buildings in Bushfire Prone Areas” current and endorsed

standards; • Bushfires Act 1954; and • City of Rockingham Annual Fire Control Notice.

The publicly released bushfire prone mapping (Bushfire Prone Area Mapping, OBRM, 1/6/2017) outlines the subject area to be bushfire prone as per the above regulations as it is situated within 100m of >1 ha of bushfire prone vegetation. See Figure 2. In light of the above legislation and the proposed subdivision within the bush fire prone area mapping, your project will require a BAL Contour map for the subdivision project.

Figure 2 - Bushfire Prone Area Mapping 1/6/2017

https://maps.slip.wa.gov.au/landgate/bushfireprone/


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2.4. Suitably Qualified Bushfire Consultant This BMP has been prepared by Kathryn Kinnear (nee White), who has 10 years operational fire experience with the (formerly) DEC (1995-2005) and has the following accreditation in Bushfire Management:

• Incident Control Systems; • Operations Officer; • Prescribed Burning Operations; • Fire and Incident Operations; • Wildfire Suppression 1, 2 & 3; • Structural Modules – Hydrants and hoses, Introduction to Structural Fires, and Fire

extinguishers; and • Ground Controller.

Kathryn Kinnear currently has the following tertiary qualifications:

• BAS Technology Studies & Environmental Management; • Diploma Business Studies; and • Graduate Diploma of Environmental Management.

Kathryn Kinnear is an accredited Level 2 Bushfire Practitioner (Accreditation No: BPAD30794). Bio Diverse Solutions are Silver Corporate Members of Fire Protection Australia Association, Kathryn is a suitably qualified Bushfire Practitioner to prepare this Bushfire Management Plan.

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3. Aims of this Plan The aim of this BMP is to assess the bushfire risks associated with the existing subdivision and future subdivisions and to reduce the occurrence of, and minimise the impact of bushfires, thereby reducing the threat to life, property and the environment. It also aims to guide future development of the subject site by assessing the development to the Bushfire Protection Criteria Acceptable Solutions as outlined in the Guidelines for Planning in Bushfire Prone Areas Vers 1.3 (WAPC, 2017).

3.1. Planning Context The BMP has been prepared to support the impending release of Stage 6 “Paradiso Estate” for WAPC Condition Approval No 152273 condition No 21. The BMP also covers the future staged construction of Stage 5, 7, 8 and 9 of which timing and final boundaries of the stages is yet to be confirmed and this detail can be updated in future revisions of this BMP report. Refer to current staging plan Figure 5.

3.2. Site inspection To ensure that every aspect of the proposed subdivision meets the planning requirements as set out in Guidelines for Planning in Bushfire Prone Areas (WAPC, 2017) (Appendices, 2, 3 and 4) a site inspection was undertaken on the 19th June 2015 and again on the 17th January 2017 by Kathryn Kinnear (Bushfire Consultant, Bio Diverse Solutions) to assess the vegetation and the site conditions.

The site is located in a bushfire prone area (DFES 2017). Where a subdivision is located within an bushfire prone area the Guidelines for Planning in Bushfire Prone Areas (WAPC, 2017) requires assessment to the bushfire protection criteria – a process where subdivisions are assessed for compliance to the criteria. The bushfire protection criteria (Appendix 4, WAPC, 2017) are a performance-based criteria in assessing bushfire risk management measures and they outline four “Elements”. The “Elements” which are to be met either through the objectives of the “Performance Principle” or “Acceptable Solutions” (WAPC, 2017) for the subject site include:

• Element 1 - Location; • Element 2 - Siting and design of development; • Element 3 - Vehicular access; and • Element 4 – Water.

(WAPC, 2017) This BMP has been prepared to assess the site suitability against the “Acceptable Solutions” of the bushfire protection criteria (WAPC, 2017).

3.3. Objectives The objectives of this BMP are:

• Achieve consistency with objectives and policy measures of SPP 3.7 (WAPC, 2015); • Assess any building requirements to AS3959-2009 (current and endorsed standards) and

BAL Construction; • Assess the subdivision proposal against the Bushfire Protection Criteria Acceptable

Solutions as outlined in the Guidelines for Planning in Bushfire Prone Areas (WAPC, 2017); • Understand and document the extent of the bushfire risk to the subject site; • Prepare bushfire risk management measures for bushfire management of all land within the

subject area with due regard to people, property, infrastructure and the environment; • Nominate individuals and organisations responsible for fire management and associated

works within the subject area; and • Align to the recommended assessment procedure which evaluates the effectiveness and

impact of proposed, as well as existing, bushfire risk management measures and strategies.

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4. Spatial consideration of bushfire threat

4.1. General The subject site is located within the City of Rockingham in the Baldivis locality, east of the Rockingham city centre. The site is currently vacant with construction works occurring along the northern extents of the subject site (POS areas). The previous land use was market garden, which now is vacant land in preparation for subdivision. Please refer to Photographs 1 to 4 below.

4.2. Surrounding land uses Adjacent to the subject site to the north is Kerosene Lane a major linking road running east to west. To the north of Kerosene Lane there is remnant vegetation contained in Reserve 22429 (north west of lot 5) and Lot 3, 4 and 287 Kerosene lane. To the east is urban expansion areas associated with previous developments. Refer to Photograph 5 and 6.

Photograph 1 – View of cleared areas in the north of the subject site, view from east to west, Kerosene Lane to the rhs of photo. (Jan 17).

Photograph 2 – View of market gardens in the subject site, view from west to east of existing urban area. (Jan 17).

Photograph 3 – View of Spud Shed carpark in the north west of the site. (Jan 17).

Photograph 4 – View of site works to the west of the Spud Shed. (Jan 17).

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To the west (southern) there is land belonging to National Lifestyle Villages, which is proposed to be extended in the future to the boundary of the subject site. Refer to Photograph 7. The north west is future urban areas which are undergoing WAPC subdivision planning processes (lot 5 Kerosene Lane and Lot 815 Mandurah Road) and are presently vegetated with anticipated construction in 2017/2018.

Photograph 6 – View of urban expansion areas to the east of the subject site. (Jan 17).

Photograph 7 – View of National Lifestyle Villages eastern extent in January 2017. View from the subject site to the west.

Photograph 5 – View of Kerosene Lane to the north of the subject site.

Photograph 8 – View of sheds and infrastructure in Lot 5 Kerosene Lane the north-western boundary of the subject site.

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To the south is private property which was previously part of the original location, this has a different land owner and is still presently vacant market garden land. Whilst the timing is unknown this property is proposed future urban growth and is zoned urban.

4.3. Topography The subject site is located in an undulating landscape on the Swan Coastal Plain with the “Effective Slopes” (as per AS3959-2009) measured between 0-5 degrees. Please refer to the slope analysis on the Vegetation Mapping Appendix C. Generally, slopes surrounding the site are downslope not exceeding 5° (degrees) or vegetation is located upslope of the proposed development. The effective slopes under classifiable vegetation to AS3959-2009 (Table 2.4.3) that apply to this development include:

• Upslope and Flat Land; and • Downslope >0 to 5 degrees.

The BAL Assessment addresses this topic further in Section 4.4.

4.4. Bushfire fuels – Vegetation The subject site lies within the Swan IBRA bioregion. This bioregion is comprised of “low lying coastal plain, mainly covered with woodlands. It is dominated by Banksia or Tuart on sandy soils.” The area is located within the SWA1- Dandaragan Plateau. The plateau is bordered by Derby and Dandaragan Faults. Cretaceous marine sediments are mantled by sands and laterites. Characterised by Banksia low woodland, Jarrah - Marri woodland, Marri woodland, and by scrub-heaths on laterite pavement and on gravelly sandplains. (Hearn et al., 2002). The vegetation has been mapped on a broad scale by JS Beard (Shepherd et al., 2002) in the 1970’s, where a system was devised for state-wide mapping and vegetation classification based on geographic, geological, soil, climate structure, life form and vegetation characteristics (Sandiford and Barrett 2010). A search of JS Beard’s vegetation classification database for the general area places the site within 1 broad Vegetation Association for the site:

System Association Name: Spearwood Vegetation Association Number: 998 Vegetation Description: Medium woodland; tuart (e4Mi)

The vegetation on site is dominated by weeds associated with the disused market garden. There are no trees or other vegetation on site. The current owner/land manager has been slashing and managing all internal areas of the site since original site assessment in 2016. The vegetation to the north west of the site in lot 1 Mandurah Road and Lot 5 Kerosene Lane forms an open forest of mature Eucalyptus gomphocephala with an understorey dominated by weedy species and Acacia rostellifera, Acacia pulchella (var. goadbyi) and Olearia axillaris (Lots 5 and 6) in good to degraded condition. To the north of the site in private property is low open forest of mature Eucalyptus gomphocephala and E. marginata over Acacia sp. rostellifera, Acacia pulchella (var. goadbyi) and Olearia axillaris. To the north west and south east thickets (scrub) of Acacia pulchella and A. rostellifera occur. To the west in lot 1 Mandurah Road there is open forest of mature Eucalyptus gomphocephala with an understorey dominated by weedy species and Acacia rostellifera, considered degraded. To the west in lot 815 Mandurah Road there is cleared paddock areas with isolated Eucalyptus gomphocephala and E. marginata. These areas had a completely weedy understorey and were considered completely degraded and unmanaged (National Lifestyle Villages land).

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All vegetation within 150m of the site / proposed development was classified in accordance with Clause 2.3 and Exclusions as per Clause 2.2.3.2 of AS 3959-2009. Each distinguishable vegetation plot with the potential to determine the Bushfire Attack Level is identified below. Each plot is representative of the vegetation classification to AS3959-2009 Table 2.3 and shown on the Vegetation Classification Mapping Figure 3, page 16.

Plot 1 Classification or Exclusion Clause Scrub Type D

Location: on the northern side of Kerosene Lane and north west of the subject site in private property.

Distance from the subject site boundary: 20m to the north west and 0m to the west (along boundary fence).

Dominant species & description: Acacia, interspersed with grassy understorey.

Average vegetation height: 3-4m.

Surface fuel loading: 25 t/ha.

Effective slope: Upslope.

Photo ID: Photo 1 View of Acacia Scrub Vegetation Type D, north and north west of the subject site. View from south to north.

Plot 2 Classification or Exclusion Clause Forest Type A

Location: Directly north of the subject site on the northern side of Kerosene Lane.

Distance from the subject site boundary: 20m.

Dominant species & description: Eucalyptus marginate, multi layered with understory of herbs, scrubs and sedges.


Vegetative coverage: >30-70%.

Surface fuel loading: 25-35t/ha.

Effective Slope: >0-5 degrees downslope.

Photo ID: Photo 2 view of Forest Type A to the north of the subject site. View from the southwest to the north east from Kerosene Lane.

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Plot 3 Classification or Exclusion Clause Grassland Type G

Location: Internal to the site in the central and southern portion.

Dominant species & description: Unmanaged grasses; Kikuyu, clover, fleabane, lupins, cape weed and marshmallow. No trees or shrubs. Clearing and bare areas exist to the north and east of this area.

Average vegetation height: 100-400mm.

Surface fuel loading: 3-4 t/ha.

Effective slope: >0-5 degrees downslope.

Note future development area, future low fuel.

Photo ID: Photo 3 View of grassland Type G in the subject site, disused horticultural areas. View from north to south.

Plot 4 Classification or Exclusion Clause Forest Type A

Location: Located within lot 5 Kerosene Road and lot 1 Mandurah Road (adjacent private properties) to the west of the subject site.

Distance to the subject site boundary: 0m

Dominant species & description: Tuarts, multi layered vegetation structure. Grassy understorey in some places.

Average vegetation height: 10-15m (Tuarts).

Vegetation coverage: >30-70%.

Surface fuel loading: 25-35 t/ha.

Effective slopes: Upslope in relation to the site.

Photo ID: Photo 4 View of Tuart Forest, Vegetation Type A, view to the west in lot 5 Kerosene Lane, view from the north to south.


Location: Located within Lot 703 Mandurah Road (NLV site) to the south west of the subject site.


Dominant species & description: Melaleuca with grassy understorey.


Vegetation coverage: >30%.

Surface fuel loading: 25t/ha.

Effective slopes: >0-5 degrees downslope.

Photo ID: Photo 5 View of Scrub Type D adjacent to the site in the south west of subject site. View from east to west along the fence line.

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Location: West of the subject site within the NLV site.


Dominant species & description: grasses and scrubs, highly disturbed with much cut and fill earthworks, <10% trees and scrubs.

Vegetation height: grasses and scrubs to 3m.

Surface fuel loading: possibly reach 4.5 t/ha if left unmanaged.


Photo ID: Photo 6 view of Grassland Type G in the west of the subject site. View from north to south west.

Plot 7 Classification or Exclusion Clause Low fuel or non-vegetated areas exclusion 2.2.3.2 (e)

Location: Within the disused horticultural area to the south of the subject site.

Distance to the subject site boundary: 0m.

Description: cleared and bare areas associated with the development construction to the south of the subject site.

Areas subject to low fuel during the course of development and post construction. Refer to approved plan of subdivision Appendix B.

As per exclusion clause 2.2.3.2 (e) of AS3959-2009.

Photo ID: Photo 7 view of disused horticultural lot to the south. View from east to west, taken June 2018 by J.Nelson Terranovis.

Plot 8 Classification or Exclusion Clause Low Fuel or non-vegetated areas Exc 2.2.3.2 (e)

Location & description: Buildings, roads and hard stand areas in urban areas to the east of the subject site.


Photo ID: Photo 9 view of buildings and roads to the east of the subject site. View along Dunning Street.

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Plot 9 Classification or Exclusion Clause Low Fuel or non-vegetated areas Exc 2.2.3.2 (e)

Location & description: Bare areas associated with adjacent developments to the north east and north west of the subject site.


Photo ID: Photo 10 view of buildings and roads to the east of the subject site. View north of Nadine Street from the west to east.

Plot 10 Classification or Exclusion Clause Low Fuel or non-vegetated areas Exc 2.2.3.2 (f)

Location & description: Lawns and gardens maintained in a low fuel state in urban areas to the south east of the subject site.

As per exclusion clause 2.2.3.2 (f) of AS3959-2009.

Photo ID: Photo 11 view of maintained lawns and ornamental gardens to the east of the subject site maintained in a low fuel state. View along Dunning Street.


Location: External to the site to the west in private property.

Dominant species & description: Melaleuca scrub with grassy understorey.

Average vegetation height: 100-400mm



Photo ID: Photo 12 View of Scrub Type D adjacent to subject site. View from east to west.

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Location: within lot 5 Kerosene Road and lot 1 Mandurah Road (adjacent private properties) to the west of the subject site.


Dominant species & description: unmanaged grasses 100-300mm in height along previous cleared areas of Lot 5.

Average vegetation height: 100-300mm

Vegetation coverage: ><10% trees

Surface fuel loading: 4 t/ha.

Effective slopes: Upslope.

Photo ID: Photo 13 view of unmanaged grasses along the western boundary of Lot 5 Kerosene Lane. View from south to north.

Plot 13 Classification or Exclusion Clause Woodland Type B

Location: Located within Lot 5 Kerosene Lane to the west of the subject site.


Dominant species & description: Remnant tuart trees around existing dwelling in Lot 5, outside of APZ area. Not multilayered grassy understorey.


Vegetation coverage: <10-30%.


Effective slopes: Upslope

Photo ID: Photo 14 View of Woodland Type B in Lot 5 Kerosene Lane, view from east to west.

Plot 13 Classification or Exclusion Clause Woodland Type B

Location: Located within the north of the subject site in a future vegetated drainage basin.

Distance to the subject site boundary: 0m.

Dominant species & description: Drainage basin vegetated with seasonally damp native tree and shrub species.


Vegetation coverage: <10-30%.


Effective slopes: Upslope.

Note: Based on future fuel loading in basin.

Photo ID: Photo 15 Drawing of proposed vegetated basin area in the north of the subject site.

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Figure 3 –Vegetation Classes Map

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4.5. Bushfire Attack Level (BAL) Bushfire Attack Level (BAL) has been calculated using the Method 1 Procedure as outlined in AS3959-2009. This incorporates the following factors:

• WA adopted Fire Danger Index (FDI); • Vegetation Classes; • Slope under classified vegetation; and • Distance between proposed development site and classified vegetation.

The outcomes of the above inputs then allocate a specified BAL construction/setback for the proposed buildings.

4.5.1. Fire Danger Index The Western Australian adopted FDI is 80 as outlined in AS3959-2009 and endorsed by Australasian Fire and emergency Services Authorities Council. The FDI input for this project is 80.

4.5.2. Vegetation Classes All vegetation was classified within 150m of the subject site as bushfire prone and the vegetation classes as outlined in Section 4.4 are listed below.

• Forest Type A; • Woodland Type B; • Scrub Type D; • Grassland Type G; and • Exclusions 2.2.3.2 (e) and (f).

4.5.3. Slope under classified vegetation

Slope under classifiable vegetation (Effective Slope) was assessed in accordance with Section 2.2.5 of AS3959-2009. Table 2 below summarises the slopes assigned to each plot of classifiable vegetation for the Method 1 BAL Assessment.

Table 2 – Effective slope allocation to classified vegetation

Plot Number

Vegetation Classification Effective Slope

1 Scrub Type D Upslope 2 Forest Type A Upslope 3 Grassland Type G Downslope >0 to 5 degrees 4 Forest Type A Upslope 5 Scrub Type D Downslope >0 to 5 degrees 6 Grassland Type G Downslope >0 to 5 degrees 11 Scrub Type D Downslope >0 to 5 degrees 12 Grassland Type G Upslope 13 Woodland Type B Upslope

Plots 7,8, 9 and 10 are allocated exclusion Clauses 2.2.3.2 and therefore do not have an effective slope allocation.

4.5.4. Method 1 BAL Calculation A Method 1 BAL calculation (in the form of BAL contours) has been completed for the proposed development in accordance with AS 3959-2009 methodology (Table 2). The BAL rating gives an indication of the level of bushfire attack (i.e. the radiant heat flux) that may be received by proposed buildings and subsequently informs the standard of building construction required to increase building tolerance to potentially withstand such impacts in line with the assessed BAL. The assessed BAL ratings for the development are depicted as BAL contours in Figure 4. All proposed buildings will be located in areas subject to a BAL rating of BAL19 or BAL 12.5.

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Table 3 – BAL Allocation

Lot Affected Vegetation Type Distance to Vegetation and Effective Slope

BAL Rating Construction

Lot 425 (Northern Group Housing)

Woodland Type B (Plot 13)

14-<100m Upslope

BAL 29 AS3959-2009 to apply

Lot 424 (Northern Group Housing)

Woodland Type B (Plot 13)

14-<100m Upslope

BAL 12.5 AS3959-2009 to apply

Lots 300-308 and 296-299

Forest Type A (Plot 4)

42 - <100m Upslope


Lots 309-315 and 295

Forest Type A (Plot 4)

31m - <42m Upslope

BAL 19 AS3959-2009 to apply

Lots 405-412, 421-423 and 270-293

Scrub Type D (Plot 5)

31 - <100m Downslope >0-5 Degrees


All other lots N/A N/A BAL-Low No construction standard to apply

Assumptions made in BAL Contour Mapping:

• The subject site will be cleared and maintained in the staged construction. • Low fuel areas of POS will be maintained as per AS3959-2009 clauses 2.2.3.2 (f) and has

been applied to internal POS areas (See Section 6.5.2. for landscaping requirements). • The owner of the subject site will maintain grasslands internal to the site at all times in a low

fuel state (i.e. slashed to <100mm) for a minimum distance of 100m from any dwellings or construction areas.

• Adjacent developments to the west are long term and are deemed to be “as is”. • Development to the south has occurred with clearing and earthworks of the land to the south

occurring as at July 2018. The extension of Elderberry Drive will be done in stages. Refer to approved plan of subdivision Appendix B.

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Figure 4 – BAL Allocation (BAL Contour Plan)

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5. Assessment to the Bushfire Protection Criteria

The Guidelines for Planning in Bushfire Prone Areas (WAPC, 2017) outlines bushfire protection criteria which subdivisions and development proposals are assessed for compliance. The bushfire protection criteria (Appendix 4, WAPC, 2017) are performance-based criteria utilised to assess bushfire risk management measures and they outline four elements, being:

• Element 1: Location • Element 2: Siting and Design of Development; • Element 3: Vehicle Access; and ‘ • Element 4: Water.

(WAPC, 2017) The Plan of subdivision(s) is required to meet the “Acceptable Solutions” of each Element of the bushfire mitigation measures (WAPC, 2017). The proposal will be assessed against the Bushfire Protection Criteria Acceptable Solutions for Elements A1, A2, A3 and A4. A summary of the assessment is provided below in Table 4. The following sections of this report outlines how the proposal complies with the bushfire protection criteria Acceptable Solutions as per the Guidelines for Planning in Bushfire Prone Areas (WAPC, 2017). The subject site was assessed against the bushfire protection criteria Acceptable Solutions for Elements A1, A2, A3 and A4. Please refer to the summary table (Table 4) below and the detailed assessment in Sections 5.1-5.4.

Table 4 – Bushfire protection criteria applicable to the site

Element Acceptable Solution Applicable or

not Yes/No

Meets Acceptable Solution

Element 1 -Location

A1.1 Development Location

Yes Compliant BAL 29 or less applied to lots

Element 2 – Siting and Design

A2.1 Asset Protection Zone

Yes No not assessed

Compliant, APZ in BAL 29 or less

Element 3 – Vehicular Access

A3.1 Two Access Routes A3.2 Public Road A3.3 Cul-de-sacs A3.4 Battle axes A3.5 Private driveways A3.6 Emergency Access Ways A3.7 Fire Service Access Ways A3.8 Firebreaks

Yes

Yes No Yes Yes Yes

No

Yes

Compliant 2 access routes to 2 destinations. Compliant

N/A Compliant Compliant

Compliant -temporary along proposed road reserves

N/A

Compliant on parent lot. Element 4 - Water

A4.1 Reticulated areas A4.2 Non-reticulated areas A4.3 Individual lots in non-reticulated areas

Yes No No

Compliant N/A N/A

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5.1. Element 1: Location Intent: To ensure that strategic planning proposals, subdivision and development applications are located in areas with the least possible risk of bushfire to facilitate the protection of people, property and infrastructure.

Acceptable Solution A1.1: the strategic planning proposal, subdivision and development application is located in an area that is or will, on completion, be subject to either a moderate or low Bushfire hazard level or BAL-29 or below. Assessment to AS A1.1 The publicly released Bushfire Prone Mapping (DFES 2017) indicates the subject area is in a bushfire prone area. The AS3959-2009 construction standard that can apply to the dwellings in the subject site is shown in Table 3 – Minimum Setback Distances and Construction Standards. The BAL Contour Plan Prepared on Page 20 demonstrates the BAL Contours upon completed construction of the subdivision. This clearly demonstrates the dwellings will be subject to BAL 29-12.5 and no higher allocation of these BAL’s will apply to completed subdivision. Lower BAL’s may apply in the north west and west after construction of developments to the west. An updated BAL Contour Plan may be required depending on the development and construction in these areas.

5.1.1. Staging The subdivision is proposed to be staged (as shown on the Staging Plan Figure 5 page 23), staged development will incorporate the following:

• Incorporation of an internal “Low fuel zone” minimum of a 100m adjacent to any staged construction of lots/proposed dwellings maintained as per AS3959-2009 Clause 2.2.3.2 (f). To be implemented by the developer and maintained at all times adjacent to the staged construction (see section 5.2);

• Maintenance of fire protection measures in public areas (gates, access, landscaped areas etc.) until the developer has relinquished construction/maintenance responsibility of public use areas to the CoR; and

• Provide the CoR prior to each subdivision stage and/or release of lots with a detailed plan showing the BAL Contour Plan for lots requiring increased construction standard for dwellings in accordance with AS3959-2009 Construction of Buildings in Bushfire Prone Areas (current and endorsed standards).

New POS areas established by the developer are proposed to be low fuel in nature and will need to conform to standards as outlined in Section 5.2 of this report. Consultant Landscape Architects and Stormwater Engineers (LWMS and UWMP reports) shall be made aware of this requirement and align their works to these standards. Information for the lot owner on building to BAL is provided in Section 5.5.5 of this report. The SP (and completed subdivision) is deemed to meet A1.1.

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Figure 5 – Staging Plan

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5.1.2. Recommendations arising from assessment to this element The recommendations from assessment of the SP to Element 1: Location:

• SP development is deemed compliant to A1.1 due to no higher BAL allocation than BAL 19 will apply to buildings upon completion of construction development

• The developer will be responsible for the implementation of a notification on title pursuant to Section 70A of the Transfer of Land Act 1893 for all lots affected by an increase in construction standards consistent with a BAL rating/AS3959-2009 allocation to the lot, and alerting the prospective owner(s) of the lots and successors in title of the Bushfire Management Plan.

• Individual BAL assessments may be considered on the lots by the new owners when dwelling design/placement is known and can be undertaken at building approval stages with the engagement of an Accredited Level 1 BAL Assessor

5.2. Element 2: Siting and design of development

Intent: To ensure that the siting of development minimises the level of bushfire impact. Acceptable Solution A 2.1 – every habitable building is surrounded by, and every proposed lot can achieve, an APZ depicted on submitted plans, which meets the following requirements:

• Width: Measured from any external wall or supporting post or column of the proposed building, and of sufficient size to ensure the potential radiant heat impact of a bushfire does not exceed 29kW/m² (BAL-29) in all circumstances.

• Location: the APZ should be contained solely within the boundaries of the lot on which the building is situated, except in instances where the neighbouring lot or lots will be managed in a low-fuel state on an ongoing basis, in perpetuity (see explanatory notes).

• Management: the APZ is managed in accordance with the requirements of ‘Standards for Asset Protection Zones’. (see Schedule 1).

(WAPC, 2017) WAPC Guidelines for an APZ (WAPC, 2017) Fences: within the APZ are constructed from non-combustible materials (e.g. iron, brick, limestone, metal post and wire). It is recommended that solid or slatted non-combustible perimeter fences are used. Objects: within 10 metres of a building, combustible objects must not be located close to the vulnerable parts of the building i.e. windows and doors. Fine Fuel load: combustible dead vegetation matter less than 6 millimetres in thickness reduced to and maintained at an average of two tonnes per hectare. Trees (> 5 metres in height): trunks at maturity should be a minimum distance of 6 metres from all elevations of the building, branches at maturity should not touch or overhang the building, lower branches should be removed to a height of 2 metres above the ground and or surface vegetation, canopy cover should be less than 15% with tree canopies at maturity well spread to at least 5 metres apart as to not form a continuous canopy. See Figure 6 (WAPC Figure 16, Appendix 4) below.

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Figure 6 – Tree Canopy Cover (WAPC, 2017) Shrubs (0.5 metres to 5 metres in height): should not be located under trees or within 3 metres of buildings, should not be planted in clumps greater than 5m2 in area, clumps of shrubs should be separated from each other and any exposed window or door by at least 10 metres. Shrubs greater than 5 metres in height are to be treated as trees. Ground covers (<0.5 metres in height): can be planted under trees but must be properly maintained to remove dead plant material and any parts within 2 metres of a structure, but 3 metres from windows or doors if greater than 100 millimetres in height. Ground covers greater than 0.5 metres in height are to be treated as shrubs. Grass: should be managed to maintain a height of 100 millimetres or less. (WAPC, 2017) Assessment to AS A2.1 An Asset Protection Zone (APZ) is an area surrounding a building that is managed to reduce the bushfire hazard to an acceptable level (WAPC, 2017). APZ areas apply to the whole of lots, being urban lots. An APZ area associated with BAL 29 or less can be applied to all lots and is located within the parent lot. Most of the proposed lots/buildings utilise the Low threat and non-vegetated areas (as classified by AS3959-2009) for an APZ (i.e. external roads, maintained POS or adjacent low fuel buildings) and this can be contained within the parent lot. As the subdivision is staged, the developer (and all title owners) are to maintain an APZ around any staged development to a minimum of 100m. Landscaping and Streetscaping areas in POS areas are designed to meet AS3959 Exclusion 2.2.3.2 (f) and WAPC APZ standards as outlined above. A concept POS Landscaping Plan has been developed by Plan E (refer to Appendix B) indicates low fuel planting concepts and detailed designs will be developed through the staged approvals process. The northern stormwater retention basin is to be replanted with a planting density similar to the fuel loading of a Woodland Type B as noted on the Vegetation Classes mapping and the plot data (Plot 13). This area is therefore not expected to be low fuel like the western POS (pipeline) areas. It is noted the lawn areas surrounding the basin will be maintained and landscaped, commensurate with WAPC APZ standards. The subdivision is deemed to be compliant with A2.1.

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5.2.1. Recommendations arising from assessment to A2 The recommendations from assessment of the SP to Element 2: Siting and design:

• The SP is deemed to be compliant with Element 2 by: o The application of an APZ with BAL 29 or less; and o APZ area located within the parent lot.

• Landscaping and streetscaping to meet AS3959 Low fuel requirements (exclusion 2.2.3.2 (f) and WAPC APZ requirements (excepting in stormwater retention basin are in the north).

• Maintain setbacks from dwellings and bushfire hazards at all times and staged construction to include grasses maintained to <100mm at all times.

5.3. Element 3: Vehicle Access - Performance Criteria

Intent: To ensure that the vehicular access serving a subdivision/development is available during a bushfire event.

Acceptable Solution A 3.1 - The internal private access allows vehicles and other emergency vehicles to move through the site at all times and access public roads. A summary table of the minimum requirements as per WAPC guidelines is shown in Table 5.

Table 5 – Vehicular Access Technical Standards

Technical requirements Public Road Private

Driveways & Battle Axes

Emergency Access Ways (EAW)

Minimum trafficable surface (m)

*6 4 *6

Horizontal clearance (m) 6 6 6 Vertical clearance (m) 4.5 4.5 4.5 Maximum grades 1 in 10 1 in 10 1 in 10 Minimum weight capacity(t) 15 15 15 Maximum crossfall 1 in 33 1 in 33 1 in 33 Curves minimum inner radius(m)

8.5 8.5 8.5

Maximum Length N/A 50m 600m

*Denotes the width can include a 4m wide paving with one metre wide constructed road shoulders.

(WAPC, 2017) Assessment to AS A3.1 Assessment of the subdivision to the Acceptable Solutions is outlined in the following sections.

5.3.1. Two access routes (A3.1)

The subdivision meets the Acceptable Solution, with the design allowing for two-way traffic and safe egress from the subdivision via newly established road networks linking from the north to the east. Access to and from the subdivision (entry/exit points) will be from Kerosene Lane (north) and from the south along McDonald Road. Stage 5 and 6 construction (refer to staging on the Access Plan page 27) will allow for access to the north and the east to two different destinations. Temporary access from Stage 6 and Stage 8 will occur along temporary Emergency Access Ways (EAW) along the future road reserves to ensure there is linking access from each stage. Refer to Section 5.3.6 for further detail. Any temporary EAWs will require easement in gross and be signposted to ensure access available to residents at all times. The SP is deemed to meet the Acceptable Solution A3.1.

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Figure 7 – Access Plan

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5.3.2. Public roads (A3.2) All internal public roads shall be constructed with a minimum of 14-20m road reserves measure meeting the minimum construction requirements. A lane way to 6m is proposed in Stage 8, this meets the minimum technical requirements for a public road. The vehicular access standards (refer to Table 4 – Column 1) and relevant technical information shall be detailed in civil engineering designs at subdivision stage. The SP is deemed compliant to Acceptable Solution A3.2.

5.3.3. Cul de Sacs (A3.3) No cul-de-sacs are not proposed for this development and the subject site is not assessed to this element.

5.3.4. Battle Axes (A3.4) One battle axe lot exists in stage 8, lot 216. Battle axes are to be avoided in bushfire prone areas. A battle axe lot is proposed however serviced by a rear 6m lane way which will give secondary access for the lot. The battle axe measures 16m from the public road, meeting acceptable solutions. The battle axe will conform to the minimum technical standards as outlined in Table 4 – Column 2. The plan of subdivision is deemed to meet Acceptable Solution A3.4.

5.3.5. Private Driveways (A3.5) Private driveways will conform to the minimum technical standards as outlined in Table 4 – Column 2. The SP is deemed compliant to Acceptable Solution A3.5.

5.3.6. Emergency Access Ways (A3.6) Emergency Access Ways (EAW) (permanent) will not apply to this development as the public road network will be utilised for EAW’s. Temporary EAW’s will exist in Stage 6 and Stage 8 to link access. Temporary access will occur through easements over the road reserves area and be removed once the next stage is constructed. Refer to notes on the Access Plan Page 26. Temporary EAW’s will need to meet the minimum technical standards as outlined in Table 4 – Column 3. The SP is deemed compliant to Acceptable Solution A3.6.

5.3.7. Fire Service Access Routes (A3.7) Fire Service Access (FSA) Routes will be not be applied at this development. Any emergency access will be along the established internal roads, with a separate dedicated FSA not required. Not assessed to Acceptable Solution A3.7.

5.3.8. Firebreaks (A3.8) Firebreaks are in existence on the subject site and maintained regularly by the current owners. These will be maintained as per the CoR Fire break notice (updated annually) until developed. The urban environment proposed will not require firebreaks in the future as per the current notice. The SP is deemed compliant to Acceptable Solution 3.8. Please refer to the CoR “Annual Fire Control Notice”, this is updated annually and the current versions should be obtained from the City of Rockingham website: http://www.rockingham.wa.gov.au It is recommended that the developer be responsible for the maintenance of fire breaks on the parent lot as required by the CoR until the lots are relinquished to new lot owners.

5.3.9. Recommendations arising from assessment to this element

The recommendations from assessment of the SP to Element 3: Vehicular Access: • Is deemed compliant with Element 3 as it meets the Acceptable Solutions as outlined A3.1

to A3.8; • The developer implements the vehicular construction standards as outlined in Table 4; • Engineering construction details on the road network particularly to meet maximum allowable

grades is provided to the CoR prior to construction of each development stages.

http://www.rockingham.wa.gov.au/

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• Fire breaks on the parent lot as per the requirements in the CoR Firebreak Notice (annually updated) and maintained by the owner/developer until the land is developed into urban land.

5.4. Element 4 Water – Performance Criteria Intent: To ensure that water is available to the subdivision, development or land use to enable people, property and infrastructure to be defended from bushfire.

Acceptable Solutions Applied

5.4.1. Reticulated areas (A4.1) The development will be provided with reticulated scheme water in accordance with the specifications of the relevant water supply authority (Water Corporation WA (WCWA)) and DFES requirements. This will be detailed in the detailed engineering drawings and be subject to approval from WCWA and CoR at subdivision condition stages, meeting the Acceptable Solution. Fire hydrant (street) outlets are required, these must be installed to WCWA standards installed in accordance with the Water Corporation’s No 63 Water Reticulation Standard and are to be identified by standard pole and/or road markings and installed by the Developer. Subdivision upon construction is deemed compliant to this Acceptable Solution A4.1

5.4.2. Non-reticulated areas (A4.2) The subdivision will be connected to reticulated water; therefore, water tanks will not be required, assessment to A4.2 not required.

5.4.3. Individual lots within non-reticulated areas The subdivision will be connected to reticulated water; therefore, water tanks will not be required and assessment to A4.3 not required.

5.4.4. Recommendations arising from assessment to this element The recommendations from assessment of the SP to Element 4: Water:

• Is deemed compliant with Element 4 through the provision of reticulated water to the development which will be detailed in the engineering drawings at development stages; and

• Fire hydrant (street) outlets are required, these must be installed to WCWA standards installed in accordance with the Water Corporation’s No 63 Water Reticulation Standard and are to be identified by standard pole and/or road markings and installed by the Developer.

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5.5. Other Fire Mitigation measures

5.5.1. Reduction in Construction through Shielding “Shielding” as defined by AS3959-2009 is the reduction in construction requirements (for an individual building) for the next lower BAL than determined for the site (individual dwelling) and may be applied to an elevation of a building where the elevation is not exposed to the source of the bushfire attack (AS3959-2009). Shielding applies where the elevation of a building is not deemed to be exposed to the source of the bushfire attack due to other parts of the individual building obstructing the source of the bushfire attack. Shielding maybe applied to some of the internal lots/buildings but would need to be assessed on a case by case basis. This would need to be assessed at building approval stages and be undertaken by an Accredited Level 1 BAL Assessor.

5.5.2. Landscaping/Streetscaping Areas Landscaping and Streetscaping areas subject to similar standards that apply to the APZ as outlined in Section 5.2. New POS areas established by the developer are proposed to be low fuel in nature and detailed in concept plans Appendix B. Consultant Landscape Architects and Stormwater Engineers (LWMS and UWMP reports) shall be made aware of this requirement and align their works to these standards.

5.5.3. Evaporative air conditioners Evaporative air conditioning units can catch fire as a result of embers from bushfire getting into the unit. These embers can then spread quickly through the home causing destruction. It can be difficult for fire-fighters to put out a fire in the roof spaces of homes. Information on Evaporative air conditioners is supplied in Appendix G of this document. It is also recommended that home owners:

• Ensure that suitable external ember screens are placed on roof top mounted evaporative air conditioners compliant with AS3959-2009 (current and endorsed standards) and that the screens are checked annually; and

• Maintain evaporative air conditioners regularly as per DFES recommendations, refer to the DFES website for further details: http://www.dfes.wa.gov.au/safetyinformation/fire/bushfire/pages/preparebeforetheseason.aspx

5.5.4. Barrier Fencing In November 2010, the Australian Bushfire CRC issued a “Fire Note” (Bushfire CRC, 2010) which outlined the potential for residential fencing systems to act as a barrier against radiant heat, burning debris and flame impingement during bushfire. The research aimed to observe, record, measure and compare the performance of commercial fencing of Colourbond steel and timber (treated softwood and hardwood). The findings of the research found that: “.. Colourbond steel fencing panels do not ignite and contribute significant heat release during cone calorimeter exposure” (exposure to heat) ..”Colourbond steel (fencing) had the best performance as a non-combustible material. It maintained structural; integrity as a heat barrier under all experimental exposure conditions, and it did not spread flame laterally and contribute to fire intensity during exposure” Residents will be encouraged to build Colourbond or non-combustible fences in bushfire prone areas through dissemination of the CRC information “Fire Note” (Issue 70, Bushfire CRC, 2010) by the developer. It is also noted that non-combustible fences are recommended by WAPC refer to Section 6.2.1 of this document (APZ standards: Fences and sheds within the APZ are constructed using

http://www.dfes.wa.gov.au/safetyinformation/fire/bushfire/pages/preparebeforetheseason.aspx

http://www.dfes.wa.gov.au/safetyinformation/fire/bushfire/pages/preparebeforetheseason.aspx

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non-combustible materials (e.g. colour bond iron, brick, limestone, metal post and wire).

5.5.5. Information on Building to BAL/AS3959-2009 Bushfire Attack Level (BAL) is the process in AS39598-2009 for measuring the severity of a building’s potential exposure to ember attack, radiant heat and direct flame contact. The threat or risk of bushfire attack is assessed by an accredited BAL Assessor. BAL rating determinations are of 6 levels BAL-LOW, BAL-12.5, BAL-19, BAL-29, BAL-40, BAL FZ. Building is generally not recommended in BAL-40 or BAL-FZ areas. The BAL rating is determined by the distance of the building to vegetation, slope and vegetation type adjacent to the dwelling. Refer to Figure 8.

Figure 8 - BAL Construction levels in context (WAPC, 2017) Building design and construction to AS39590-2009 is a standard primarily concerned with improving the ability of buildings in designated bushfire prone areas to better withstand attack from bushfire thus giving a measure of protection to the building occupants (until the fire front passes) as well as to the building itself. The construction standards outlined in AS 3959-2009 provide reference to specific items of building and it is recommended that the future lot owner discuss these in detail with their builder or architect. Construction standards are to be approved by the CoR prior to construction. Building to AS3959-2009 applies to buildings as defined in the Building Code of Australia (BCA).

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6. Summary and recommendations

6.1. Overall Fire Threat Terranovis Pty Ltd commissioned Bio Diverse Solutions (Bushfire Consultants) to undertake a bushfire hazard assessment and prepare a Bushfire Management Plan to guide all future bushfire management for the proposed development of Lots 14, 299 and 9010 Kerosene Lane Stage 6 development and future associated Subdivision Guide Plan (s). The proposed development contemplates the creation of future lots in the density range of R20-R60 and public open space areas. The subject site has internal areas of Grassland Type G, which upon construction will be Low fuel or non-vegetated areas (AS3959-2009). External to the site is Forest Type A, Woodland Type B Scrub Type D and Grassland Type G. Urban growth to the west, south and east are classified as future “Low Threat Vegetation and Non-Vegetated Areas” (AS3959-2009). The majority of the site will be cleared for the subdivision with internal POS areas proposed to be landscaped public reserves (classified as low fuel areas).

This BMP report provides details of the fire management strategies proposed to be implemented across the site as it is subdivided and developed to ensure adequate protection of life, property and biodiversity assets. To ensure the mitigation measures are implemented responsibilities are outlined in the following sections for the Future Lot Owner, Developer and CoR.

6.2. Future Lot Owners Responsibility It is recommended the Future Property Owners shall be responsible for the following:

• Take measures to protect their own assets on their property; • Implement this document, Bushfire Management Plan of Lots 14, 299 and 9010

Kerosene Lane Baldivis as it applies to their individual property; • Ensure that APZ’s are maintained around all buildings as per WAPC guidelines; • Where a lot has been identified as requiring an increased construction standard (i.e.

BAL/AS3959-2009) ensure that the design and construction of any building is compliant with the requirements of AS3959-2009 (current and endorsed standards);

• Detailed BAL may be required by the individual lot owner with the BAL ratings supplied in this report as a guide to assess the site to the Acceptable Solutions. Detailed BAL should be undertaken by an accredited Level 1 BAL Assessor;

• Ensuring that suitable external ember screens are placed on roof top mounted evaporative air conditioners compliant with AS3959-2009 (current and endorsed standards) and that the screens are checked annually;

• Each lot owner is aware of: o The endorsed and approved Bushfire Management Plan, o A hard copy of the DFES A4 book “Prepare. Act. Survive”, o Fire Control Information supplied by the City of Rockingham (annual updated

advice brochure); and • It is the responsibility of the individual property owner to maintain in good order and

condition APZ and driveway standards. Future modifications other than requirements as set out in this Bushfire Management Plan can only be done with written agreement from the CoR.

6.3. Developers Responsibility Prior to development being given final approval by the City of Rockingham, the Developer shall be required to carry out works that include the following but in respect to individual stages of development. Subsequent to the issue of final approval, the Developer shall have no further responsibilities to the provision of firefighting facilities and fire management on individual lots that pass from their ownership.

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It is recommended that the Property Developer shall be responsible for the following: • Implement this document, Bushfire Management Plan of Lots 14, 299 and 9010

Kerosene Lane Baldivis as it applies to their development; • Comply with standards as outlined by the CoR and WAPC conditions of subdivision; • Ensure that property owners are aware of the endorsed and approved Bushfire

Management Plan; • Comply with minimum subdivision construction standards as outlined by this Bushfire

Management Plan; • Maintain any APZ as per Guidelines for Planning in Bushfire Prone Areas (WAPC,

2017) (as outlined in this plan) until the land is relinquished to new lot owners; • Maintain fire protection measures in public areas (access, landscaped areas etc.) until

the Developer has relinquished construction/maintenance responsibility of public use areas to the City of Rockingham;

• Maintaining the balance of land in the staged construction of the subject site to minimise bushfire fuels and mitigate the risk of bushfire in accordance with the CoR Fire Control Notice (yearly advice brochure updated annually);

• Implement a notification on title pursuant to section 70A of Land Act 1893 of lots affected by an increase in construction standards consistent with BAL rating/AS3959-2009 alerting owners of the lot and successors in title of the Bushfire Management Plan;

• Modify this Bushfire Management Plan to accord with any changes to the applicable subdivision plan(s);

• Construct access with minimum standards outlined in Table 4; • Provide reticulated to the subdivision water as per WCWA standards; • Provide the City of Rockingham prior to each subdivision stage an updated BAL

Contour Plan outlining lots requiring increased construction standard for dwellings in accordance with AS3959-2009 Construction of Buildings in Bushfire Prone Areas (current and endorsed standards);

• Provide each prospective owner with: o The endorsed and approved Bushfire Management Plan, o A BAL Contour Plan outlining BAL/AS3959-2009 applicable to individual lots. o A hard copy of the DFES A4 book “Prepare. Act. Survive”; and o Fire Control Information supplied by the City of Rockingham (yearly advice

brochure updated annually).

6.4. City of Rockingham Responsibility At approval and endorsement of this Fire Management Plan, the City of Rockingham has statutory control and responsibility to ensure that aspects of the plan and community fire safety are maintained. It is recommended the City of Rockingham be responsible for the following:

• Provide advice on standards and methods to achieve community fire protection to owners/occupiers of land through issue and enforcement of the current CoR Fire Control Notice (yearly advice brochure updated annually);

• Ensuring compliance with this Bushfire Management Plan with regard to any related conditions of subdivision approval;

• Maintaining roads consistent with the standards this Bushfire Management Plan an in the Guidelines for Planning in Bushfire Prone Areas (WAPC, 2017); and

• Maintaining the public open space (after the handover from the developer) in a manner that will minimise bushfire fuels and mitigate the risk of fire.

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7. Conclusions

Galati Nominees Pty ltd, through Terranovis Pty Ltd commissioned Bio Diverse Solutions (Bushfire Consultants) to undertake a bushfire hazard assessment and prepare a Bushfire Management Plan to guide all future fire management as part the planning process for a proposed development (Structure Plan) and assess the subdivision of Lots 14, 299 and 9010 Kerosene Lane, Baldivis. Such planning takes into consideration standards and requirements specified in various documents such as Australian Standard (AS) 3959-2009, Western Australian Planning Commission (WAPC) Guidelines for Planning in Bushfire Prone Areas (WAPC, 2017) and State Planning Policy 3.7 (WAPC, 2015). These policies, plans and guidelines have developed by WAPC to ensure uniformity to planning in designated “Bushfire Prone Areas” and consideration of the relevant bushfire hazards when identifying or investigating land for future development. The development is required to meet the “Acceptable Solutions” of each Element of the bushfire mitigation measures (WAPC, 2017). The bushfire protection criteria (Appendix 4, WAPC, 2017) are a performance-based criteria utilised to assess bushfire risk management measures and they outline four elements, being:

• Element 1: Location; • Element 2: Siting and Design of Development; • Element 3: Vehicle Access; and ‘ • Element 4: Water.

The proposal was assessed against the bushfire protection criteria Acceptable Solutions for Elements A1, A2, A3 and A4. This report documents how the development complies with the bushfire protection criteria Acceptable Solutions as per the Guidelines for Planning in Bushfire Prone Areas (WAPC, 2017).

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8. References

AS 3959-2009 Australian Standard, Construction of buildings in bushfire-prone areas, Building Code of Australia, Primary Referenced Standard, Australian Building Codes Board and Standards Australia.

Bushfire CRC (2015) Managing Forest in South West Western Australia, Research project undertaken by Dr Lachlan McCaw and Dr Roy Wittkuhn, retrieved from: http://www.bushfirecrc.com/projects/b11/managing-forest-fires-south-western-australia City of Rockingham Fire Break Order, yearly advise brochure, accessed June 2018 from: http://www.rockingham.wa.gov.au Department of Fire and Emergency Services Website accessed July 2015: http://www.dfes.wa.gov.au Hearn, R., Williams, K. and Comer, S. (2002) Warren (WAR- Warren), A Biodiversity Audit of Western Australia’s 53 Biogeographical Subregions in 2002, Department of Conservation and Land Management. Sandiford, E.M. and Barrett, S. (2010). Albany Regional Vegetation Survey, Extent Type and Status, A project funded by the Western Australian Planning Commission (EnviroPlanning “Integrating NRM into Land Use Planning” and State NRM Program), South Coast Natural Resource Management Inc. and City of Albany for the Department of Environment and Conservation. Unpublished report. Department of Environment and Conservation, Western Australia. Shepherd, D.P., Beeston, G.R. and Hopkins, A.J.M. (2002) Native Vegetation in Western Australia, extent Type and Status, Technical Report 249, Department of Agriculture WA Western Australian Planning Commission (WAPC) (2017) Guidelines for Planning in Bushfire Prone Areas Version 1.3. Western Australian Planning Commission and Department of Planning WA, Government of Western Australia. Western Australian Planning Commission (WAPC, 2015) State Planning Policy 3.2 Planning in Bushfire Prone Areas. Department of Planning WA and Western Australian Planning Commission.

State Land Information Portal (SLIP) (2017) Map of Bushfire Prone Areas. Office of Bushfire Risk Management (OBRM) data retrieved from: https://maps.slip.wa.gov.au/landgate/bushfireprone/

http://www.bushfirecrc.com/projects/b11/managing-forest-fires-south-western-australia

http://www.rockingham.wa.gov.au/

http://www.dfes.wa.gov.au/


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Appendices

Appendix A – Location Mapping

Appendix B –Structure Plan(s) & subdivision guide plans

37

Appendix A

Location Mapping

39

Appendix B

Subject Site Structure Plan, Subdivision Plan Stage 5 and 6

Landscaping Concept Plans, Staging Plan &

Adjacent properties structure plans/plan of subdivision

your ref - paradiso estate · acceptable solutions of the 4 bushfire protection criteria is...

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