Minor Change Report MCU24 0142 01 & OPW24-0185.01 (As Published)

               In summary, the proposed changes to the stormwater management system do not comply with
               industry standards. It has been determined that the system would be ineffective at providing
               attenuation and may adversely affect the site’s ability to drain effectively. The level of information
               and methodology provided is inadequate. It is recommended that the applicant consider
               removing the detention system entirely and rely on a pit-and-pipe solution and the grading of the
               site to effectively drain the development.
               The change application is not supported and recommended for refusal.
               Recommendation
               It is recommended existing conditions 38 and 66 remain unchanged, as the change application
               has been recommended for refusal.


               4.     CONSULTATION
               4.1. Referral Agencies
               Not applicable
               4.2. Internal Council Referrals
               The application was forwarded to the following internal Council officers for review and/or comment:
               •      Senior Development Engineer, Development Assessment
               5.     CONCLUSION & REASONS FOR DECISION
               The proposed request to change the stormwater management conditions 38 and 66 is not
               supported as the changes do not comply with industry standards. The application is therefore
               recommended for refusal.
               The report is provided in accordance with Section 83(9) of the Planning Act 2016.
               RECOMMENDATION
               With regard to Application No. MCU24/0142.01 to make a minor change to an existing approval
               for Material Change of Use – Multiple Dwelling (3 Units) and Operational Works – Earthworks,
               Stormwater and Landscaping situated at 11 Robert St Noosaville Qld 4566 and described as Lot
               1 on RP168283, Council on 5 March 2026 decided to:
               Refuse to make the change to conditions 38 and 66 (Operational Works ) for the following reasons:
               1.     The proposed change application fails to comply with Acceptable Outcomes 2.1, 2.3 and
                      corresponding Performance Outcome 2 of the Water Quality and Drainage Code. As a result,
                      the development does not demonstrate that stormwater quantity and quality will be managed
                      to avoid adverse impacts on adjoining properties or the broader drainage network.
               2.     The amended internal stormwater drainage infrastructure has not been designed in
                      accordance with Planning Scheme Policy 6 Engineering Design Standards and the
                      Queensland Urban Design Manual (QUDM) which is likely to result in the development being
                      inadequately drained creating an unacceptable risk of nuisance and ponding.
               3.     The detention calculations have not been undertaken in accordance with any contemporary
                      recognised hydrologic sizing method and is unlikely to satisfy QUDM or AS3500. The limited
                      technical information provided suggests that detention is not required for this site and that
                      the system is likely to worsen the post-development drainage characteristics of the site.




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Document Set ID: 24562651
Version: 8, Version Date: 06/03/2026