SUPERSEDED Approved Plans & Document OPW25-0042 · OPW25/0042

        3.0       PROPOSED DEVELOPMENT

        The proposed development consists of multi storey hotel buildings with basement carparking
        and all buildings to be surrounded by extensive landscape areas, both hard and soft. The
        northern face of the development provides for two (2) swimming pools; one at the eastern end of
        the site surrounded by hardstand and landscaping and a second ‘quiet pool’ at the western end
        of the site with predominantly soft-landscaped surrounds.

        An ephemeral stream will provide a suitable route for conveyance of external catchment flows
        through the site with minor events piped and emergency major event flows conveyed as
        overland flow.

        Guests’ vehicular entry to basements will be from Banksia Avenue while service vehicles will
        access back of house areas via the cul-de-sac bowl at the end of Serenity Close.

        Refer architectural drawings at Appendix C.


        4.0       COUNCIL CONDITIONS

                 46. Stormwater Drainage
                 1.     Prior to the lodging of a development application for Operational Works, provide and
                        have endorsed by Council updated architectural plans, preliminary engineering plans,
                        and Stormwater Management Plan, which addresses the following:
                        a.      Acceptance of all external catchments
                        b.      Provide sizing and nominate the locations of roofwater harvesting tanks. The tanks
                                are to be sized to provide 80% reliability to supply water for landscape irrigation
                                and flushing of toilets in public/communal areas of the resort
                        c.      Provide a method of removal of gross pollutants from all surface runoff (eg litter
                                baskets)
                        d.      Provide treatment of internal site runoff such that the pollutant removal
                                requirements of AO6.1 and AO6.2 of the Water Quality and Drainage Code are
                                achieved prior to discharge to surface waters or infiltration to groundwater. Provide
                                MUSIC modelling to demonstrate this will be achieved by the proposed stormwater
                                treatment train
                        e.      Provide in-situ hydraulic conductivity testing at the locations and depths nominated
                                for Rapid Infiltration Pits and demonstrate that the assumptions regarding
                                infiltration rates will be achieved. If not achievable, provide a revised design.
                        f.      Ensure the proposed method of stormwater management achieves no net
                                reduction of rainwater infiltrating the sand dunes beneath the site. This may be
                                achieved either by infiltrating all flows up to the 10%AEP or by alternative
                                measures designed and managed in accordance with a groundwater recharge and
                                discharge management plan prepared by a suitably experienced and qualified
                                groundwater hydrologist. The groundwater recharge or discharge must
                                demonstrate that the development does not affect groundwater balances beyond
                                the property boundaries.
                        g.      Updated the maintenance and management plan of the Stormwater Management
                                Plan to reflect any changes.

                 __________________________________________________________________________
                 A6769/25/SWMP/Rev OpW(A) – Feb 2025
                 SH/PL                                                                                    Page 2 of 9
                             Brah101 Pty Ltd t/as ALTA PROJECTS
Document Set ID: 23646596
Version: 1, Version Date: 21/03/2025