Delegated Report - Code - Planning MCU23 0094, OPW23 0113 & RAL23 0014 [As Published] · MCU23/0094

                      applicant has incorporated 20% increase for Climate Change in accordance with PO2 of the
                      Water Quality and Drainage Code.
                      Stormwater Quality – The development includes roofwater collection and reuse and two (2)
                      bioretention basins to achieve the required pollutant load reduction targets for the site in
                      accordance with the Water Quality and Drainage Code and Sustainable Building Design
                      Code. It is noted that the development is non-compliant with AO’s 7.1 & 9.2 of the Water
                      Quality and Drainage Code as the extent and heights of retaining walls within the basins do
                      not comply with Water By Design – Bioretention Technical Design Guidelines (2014) and
                      include retaining walls greater than 800mm. Given that adequate access and amenity
                      outcomes can be achieved, the bio basin design complies with Performance Outcomes 9
                      and 7.
                      It is noted that there are outstanding issues with the Erosion and Sediment Control Plans,
                      which are not to be included as approved plans. Conditions will be included by Council’s
                      stormwater consultant to address the applicant’s ESC requirements and responsibilities
                      during construction.
                      Earthworks
                      Earthworks plans have been provided showing the cut (1926m3) and fill (580m3) volumes
                      across the site and location and heights of proposed retaining walls. Walls are to be located
                      along common boundaries and internally within the site to establish building pads, with
                      maximum retaining wall heights of 1.4-1.65m. A condition will be included to provide safety
                      fencing on walls exceeding 1m.
                      The site is mapped within the Acid Sulfate Soils Overlay and existing contours range between
                      9-14m AHD. No earthworks are proposed below 5m AHD. Further Acid Sulfate Soil reporting
                      is therefore not triggered. Standard conditions are recommended for approval.
               •   Infrastructure Services (Timothy Sparks & Alex Neville)
                   Infrastructure Services are in agreement that the retaining wall along the Headland Dr frontage
                   is to be removed in favour of a landscaped batter. Batter is to be maximum 1:4 and maintain a
                   0.5-1m trafficable clearance from the footpath.
               •   Senior Environmental Officer – as conditioned.
                    The application material has provided an outcome that generally meets the requirements of
                    the landscape code. Minor species changes have been required to ensure medium sized
                    shrubs are introduced into the landscape species mix to compliment the larger tree species.
                    Works along the eastern boundary (sewer, stormwater, and retaining) have the potential to
                    impact on trees within the neighbouring properties. The arborist has been conditioned to
                    undertake a risk assessment of these trees and carry out hazard pruning or removal where
                    required.
                    A fauna management plan is required to be submitted prior to the pre-start that addresses
                    fauna management during the clearing works.
                    12 months maintenance has been conditioned over the area of landscape being undertaken
                    within Councils road reserve.
               4.3. Other Referrals
                      The application was forwarded to the following external experts for review and/or comment:
                      Stormwater Consultant – Comments and recommended conditions.

                      Flooding - The site is not subject to regional flood inundation and there are no external local
                      catchments flows entering the site.

                      Stormwater drainage and lawful point of discharge - The site is challenging due to the fact
                      that most of the site drains towards downslope properties and away from Eumundi Noosa
                      Road. Special care must be taken in these situations to ensure that the drainage
                      characteristics of the down-slope residential properties in Starboard Ave are not detrimentally

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Document Set ID: 22528171
Version: 11, Version Date: 11/01/2024