Reference Document - MCU26 0001 & OPW26 0002 - AS PUBLISHED · MCU26/0001

        Text Figures
        Text Figure 1: Layout plan (upper) and 3D Render, courtesy of Blackwood.............................................................. 1
        Text Figure 2: Decemeber 2025 aerial image of the site and immediate surrounds (courtesy
              Nearmap) ................................................................................................................................................................................. 3
        Text Figure 3: View of Bottlebrush Avenue frontage, looking north ............................................................................ 4
        Text Figure 4: View of distressed retaining walls at rear of existing residence......................................................... 4
        Text Figure 5: Cracking in concrete steps (LHS) and foundation wall of existing residence (LHS) ................... 4
        Text Figure 6: Plan showing ground surface contours (courtesy NC ‘Intramaps’)................................................... 5
        Text Figure 7: Extract of 1:100,000 Laguna Bay Surface Geology Map ........................................................................ 6
        Text Figure 8: Extract from NC landslide hazard overlay mapping ............................................................................... 8
        Text Figure 9: Footing depth required to minimise risk of undermining ................................................................ 14



        Tables
        Table 1: Summary of Subsurface Conditions........................................................................................................................ 6
        Table 2: Stability Risk Levels ........................................................................................................................................................ 9
        Table 3: Details of Qualitative Risk Assessment for Property (AGS 2007) ............................................................... 10
        Table 4: Retaining Structure Design Parameters............................................................................................................... 16



        Figures
        Figure 1: Site Plan



        Appendices
        Appendix A                      Borehole & DCP Reports and Explanatory Notes
        Appendix B                      AGS Guidlines - Qualitative Terminology for Use in Assesing the Risk to Property
        Appendix C                      Limitations




        Geotechnical Investigation
        30 January 2026 | 25408-001-Rev0                                                                                                                                                              iv
Document Set ID: 25158026
                  24528612
Version: 1,
         2, Version Date: 10/09/2026
                          13/02/2026