Level 1, 50 Subiaco Square Road Subiaco WA 6008 PO Box 243 Subiaco WA 6904 Phone (08) 9380 3100 Fax (08) 9380 4606 177 Spencer Street Bunbury WA 6230 PO Box 287 Bunbury WA 6231 Phone (08) 9792 4797 Fax (08) 9792 4708

CED18011_01 M001 Rev A 27-Feb-18 1

To: Nick Wheeler Date: 27 February 2018

Company: Cedar Woods Properties Limited Project No: CED18011.01

Fax/email: nick.wheeler@cedarwoods.com.au Inquiries: Zac Cockerill

Bushfire Attack Level (BAL) Compliance Report Stage 2 Bushmead

Site Details

Address: 68 residential lots within Stage 2 BushmeadSuburb: Bushmead State: Western AustraliaLocal Government Area: City of SwanDescription of building works: Class 1a buildings with associated Class 10a buildings

Report details

Report/Job number: CED18011.01 Report version: M001 Rev A Assessment date: 11/01/2018 and 23/02/2018 Report date: 27/02/2018 Report Review Endorsement

Z Cockerill 27/02/2018 BPAD37803 Level 2 Accredited

Introduction

This Bushfire Attack Level (BAL) compliance report has been prepared for 68 residential lots within Stage 2 Bushmead (hereon referred to as the project area), located in the City of Swan.

This report provides a post-subdivisional works update of the BAL ratings for individual lots within the project area and has been prepared for the benefit of the developer, future lot purchasers and decision-makers. BAL certificates for each individual lot have been prepared based on the final site compliance check and are appended to this report for use at the building permit stage.

The BAL assessment outlined in this report is the most up to date assessment relating to the project area and therefore supersedes any previous Strategen BAL assessments undertaken within the project area, including those documented in previous Bushfire Management Plans (BMPs) prepared by Strategen to accompany both the Structure Planning and Stages 1–3 subdivision planning applications.

The approach for preparation of this BAL compliance report is consistent with Section 4.2 and Appendix 3 of Guidelines for Planning in Bushfire Prone Areas (the Guidelines).

The BAL compliance assessment has been completed by a Level 2 accredited Bushfire Planning and Design practitioner (Zac Cockerill, BPAD37803) in accordance with Method 1 of AS 3959–2009 Construction of Buildings in Bushfire-prone Areas (AS 3959) and results are consistent with on-ground conditions observed at the time of inspection on 11 January 2018 and reassessment on 23 February 2018.

Should subdivision design or the classified vegetation extent be further modified prior to building construction, then an updated BAL assessment for the affected lots may need to be undertaken to account for these changes.

Bushfire Attack Level (BAL) Compliance Report

CED18011_01 M001 Rev A

27-Feb-18 2

BAL contour assessment

Results of the BAL contour assessment are provided in Figure 1 and a summary of assessment parameters are provided in the following subsections.

Fire Danger Index

A blanket rating of FDI 80 is adopted for Western Australian environments, as outlined in AS 3959 and endorsed by Australasian Fire and Emergency Service Authorities Council.

Vegetation class

The spatial extent of classified vegetation and exclusions located within 100 m of the project area are depicted in Figure 1, along with site photo points to verify the location of classified vegetation and exclusions observed. The photo points depicted in Figure 1 relate to the georeferenced site photographs provided in Appendix 1.

Classified vegetation was observed to occur east of the Stage 2 development area within Kadina Brook foreshore reserve. This vegetation will be retained as conservation bushland as part of the development. The vegetation comprised Class B woodland and contained a eucalyptus overstorey with little to no mid or understorey vegetation. This classification is consistent with previous BMPs prepared over the site.

Subdivisional works have resulted in the following exclusions within and adjacent to the project area:

• the project area is in a cleared, non-vegetated state and is excluded from classification under Clause 2.2.3.2 (e)

• POS to the northeast, east, southeast and southwest is a combination of non-vegetated land and managed low threat vegetation and is excluded from classification under Clauses 2.2.3.2 (e) and (f)

• the 20 m wide Asset Protection Zone (APZ), as documented in previous BMPs prepared over the site, has been implemented properly and is excluded from classification under a combination of Clauses 2.2.3.2 (e) and (f).

Effective slope

Class B woodland situated to the east within Kadina Brook foreshore reserve was confirmed to be down-slope at >0–5 degrees, as depicted in Figure 1.

BAL calculations

The BAL impact to the project area has been assessed in the form of BAL contours, utilising the assessment results outlined above. Results of the BAL contour assessment are outlined in Table 1 and depicted in the BAL contour map (Figure 1).

Table 1: BAL contour assessment Vegetation class Effective slope Separation distance

(BAL contour width) BAL rating Comment

Class B woodland

>0–5 degrees down-slope

<13 m BAL–FZ No development is proposed in this area

13–<17 m BAL–40 No development is proposed in this area

17–<25 m BAL–29 Development will occur in this area

25–<35 m BAL–19 Development will occur in this area

35–<100 m BAL–12.5 Development will occur in this area

Bushfire Attack Level (BAL) Compliance Report

CED18011_01 M001 Rev A

27-Feb-18 3

BAL certificates

BAL certificates are provided in Appendix 2 for all 68 residential lots situated within Stage 2 Bushmead as per the BAL contour assessment outlined in Figure 1. Where more than one BAL rating applies to a single lot, the highest (worst case) BAL rating has been applied. Should a lower BAL rating be realistically achievable through an appropriate building setback, then the landowner can refer to detailed advice for recommended setbacks in Table 2. The lower BAL rating may be achieved if the recommended building setback is reflected on the building plan for that lot and a revised BAL certificate can be issued at that time.

Table 2: Recommended setbacks to achieve a lower BAL rating Lot

number Current separation

distance Current

BAL rating Recommended setback to achieve lower BAL New BAL rating*

57 20 m (as per APZ requirements)

BAL-29 8 m tapered rear setback BAL-19

116 31 m BAL-19 4 m tapered front setback BAL-12.5117 34 m BAL-19 1 m tapered front setback BAL-12.5129 20 m (as per APZ

requirements) BAL-29 11 m front setback BAL-19

130 20 m (as per APZ requirements)

BAL-29 13 m tapered front setback BAL-19

132 28 m BAL-19 7 m tapered front setback BAL-12.5*The new BAL rating in Table 2 can only be confirmed once the building plan for the relevant lot has been prepared to demonstrate compliance with the recommended setback. Once the setback has been confirmed, a new BAL certificate for the lower BAL rating can be prepared and issued to accompany the building permit application.

Conclusion and recommendations

This BAL compliance report has been prepared for 68 residential lots within Stage 2 Bushmead to provide a final BAL check for individual lots for use at the building permit stage. Assessment results are consistent with current on-ground conditions observed at time of inspection on 11 January 2018 and reassessment on 23 February 2018. Strategen can confirm that the existing BMPs over the site have been implemented as intended throughout the duration of subdivisional works for the relevant Stage 2 area and adjacent land to achieve the bushfire management outcomes as planned for in these documents.

In the absence of any change in development design or post-development classified vegetation extent, Strategen considers that the BAL assessment and BAL certificates outlined in this report are accurate to inform individual lot building permit applications.

Should the extent of classified vegetation change or new vegetation be introduced within 100 m of proposed development, then the BAL should be reassessed at the building permit stage to ensure accuracy with on-ground conditions.

Should it be determined through demonstration on the building plan that compliance with the recommended building setbacks has been achieved and subsequently a lower BAL rating has been achieved (as per Table 2), then the lower BAL rating should apply and be reflected in an updated BAL certificate prepared at that time.

The BAL assessment outlined in this report is the most up to date assessment relating to the project area and therefore supersedes any previous Strategen BAL assessments undertaken within the project area.

Ongoing requirements of the Strategen (2014) FMP, Strategen (2016) FMP addendum and current City of Swan annual firebreak notice should continue to be implemented as required, particularly with regards to ongoing fuel management of vacant land, POS, road reserves, APZs and HSZs.

Figure 1 BAL compliance: Stage 2 Bushmead

57

59

60

61

6263

6465

66

78

79

80

8182

8384

8586

87

88

89

90

91

92

9394

9596

97

98

99

100

101

102

103104

105106

107

108

109

110

111

112

113114

115

116

117

118

119

120

121

122

123

124

125126

127128

129

130

131

132133

134135

136

8002

!(!(

!(

!(

!(

!(

!(

!(

!(!(

Torquata Bvd

5

10

8

9

6

2

3

1

4

7

407700

407700

407800

407800

407900

407900

408000

408000

408100

408100

6467

600

6467

600

6467

700

6467

700

6467

800

6467

800

6467

900

6467

900

6468

000

6468

000

6468

100

6468

100

6468

200

6468

200

Path: Q:\Consult\2018\CED\CED18011\01_GIS_documents\ArcMap_documents\CED18011_G001_RevD.mxd

info@strategen.com.auwww.strategen.com.au

Scale at A4

Source: Aerial image: Nearmap, flown 12/2017.Existing cadastre: Landgate 2017. Subdivision plan: Client 02/2018.

Note that positional errors may occur in some areas

0 20 40 60 80 100m

1:3,000

Coordinate System: GDA 1994 MGA Zone 50

Date: 27/02/2018Author: JCrute

¹

Legend!( Photo point

Photo direction

Project area

Proposed lots

Existing cadastre

100m wide assessment area

20m wide APZ

POS

Vegetation classClass B Woodland

BAL contoursBAL FZ

BAL 40

BAL 29

BAL 19

BAL 12.5

BAL Low

Freeman View

Greenslope Drive

Greenslope Drive

Tasman StreetBeneke Street

Brookhill Grove

0-5 degreesdown slope

Appendix 1 Site photographs

Photo 1: Class B woodland

Photo 2: Non-vegetated land and low threat managed land (APZ) excluded from classification under Clauses 2.2.3.2 (e) and (f)

Photo 3: Non-vegetated land and low threat managed land (APZ) excluded from classification under Clauses 2.2.3.2 (e) and (f)

Photo 4: Non-vegetated land and low threat managed land (APZ) excluded from classification under Clauses 2.2.3.2 (e) and (f)

Photo 5: Non-vegetated land and low threat managed land (APZ) excluded from classification under Clauses 2.2.3.2 (e) and (f) right of shot, Class B woodland left of shot

Photo 6: Non-vegetated land and low threat managed land excluded from classification under Clauses 2.2.3.2 (e) and (f) in foreground, Class B woodland in background

Photo 7: Non-vegetated land and low threat managed land excluded from classification under Clauses 2.2.3.2 (e) and (f)

Photo 8: Non-vegetated land and low threat managed land excluded from classification under Clauses 2.2.3.2 (e) and (f)

Photo 9: Non-vegetated land and low threat managed land excluded from classification under Clauses 2.2.3.2 (e) and (f)

Photo 10: Non-vegetated land and low threat managed land excluded from classification under Clauses 2.2.3.2 (e) and (f) in foreground, Class B woodland in background