Planning Report (002)

                                                                     DANYA COOK TOWN PLANNING


Landslide Hazard

In consideration of the mapped landslide hazard impacting the site, Tectonic Geotechnical Pty Ltd has prepared a Geo-
Environmental Investigation included at Appendix E, which confirms that proposed Lot 7 can accommodate a suitable building area
inclusive of land application area that comprises a Low Risk of slope instability provided:

      •   The proposed building envelope at Lot 7 is sited within the acceptable building area, as shown on Figure 1 of the report.
      •   From a stability perspective, footings supporting the future residence and associated ancillary structures must be founded
          as recommended in Section 6.3 of the report, at a minimum.
      •   Unless assessed and approved by a geotechnical RPEQ, filling must be limited to:
          o No more than 1m height on slopes 10°.
          o No more than 0.5m height on slopes >10°.
      •   All retaining walls exceeding 1m high and / or subject to surcharge loads must be engineer designed and certified, which
          must include an assessment of global and internal stability by the designer.

4.3       Access

As demonstrated by the Plan of Development included at Appendix B, access will be maintained via the established driveway
crossover located at the southern corner of proposed Lot 6. A new easement (access and services) is proposed over Easement B
and Easement D on SP177941 to service proposed Lot 7, which makes good use of existing infrastructure to deliver a consolidated
lawful and safe access arrangement to Black Mountain Range Road.

4.4       Provision of Services and Stormwater

As mentioned above under Section 3.1.6 - Access and Services, the existing dwelling contained at proposed Lot 6, is serviced by an
on-site potable water supply and on-site wastewater treatment system, reticulated overhead supply of electricity and reticulated
supply of telecommunications. The current service connections available to proposed Lot 6 will be altered and modified where
required, to be fully contained within the lot in which they serve.

Following approval of the subdivision development, proposed Lot 7 will be provided with connection to infrastructure services,
both reticulated and on-site. In this regard, please refer to the Geo-Environmental Investigation included at Appendix E. The Geo-
Environmental Investigation recommends that wastewater for proposed Lot 7 should be directed to a suitably sized Household
Sewerage Treatment Plant (HSTP) connected to a shallow subsurface irrigation system. Due to the spatial limitations posed by the
natural drainage line and dam to the north of the lot, Tectonic Geotechnical Pty Ltd recommend the HSTP be licensed to produce
Advanced Secondary standard effluent.

Furthermore, with respect to stormwater, the Geo-Environmental Investigation suggests that adequate site drainage be installed
to ensure that stormwater is directed away from the building site at proposed Lot 7, to include retaining walls and batters. For
further details with respect to drainage recommendations, please refer to Appendix E.




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Planning Report 2025-15                                                                                                    July 2025