Ltr - 20241112 - Information Request Response - 100 Hilton Terrace, Noosaville · MCU24/0112

In direct response to Item 3(3), Westera Partners has advised there are no existing drainage paths
within the site.. Further, the site levels and existing building FFLs indicate stormwater discharge to the
property boundaries and no provision for conveying overland flow. No impacts are expected to
neighbouring properties as there are no alterations to existing drainage paths and these sites have
also been filled to achieve flood immunity. Please refer to Attachment D for further details.

Item 4 – Stormwater
Issue
No detail has been provided regarding stormwater collection and discharge for the proposed
development. The required retention and treatment structures may impact on the proposed design.
Information Required
4. Provide a preliminary stormwater management plan for the proposed development. The plan must
   be prepared by a Registered Professional Engineer of Queensland (RPEQ) and include, but not
   be limited to:
    4.1.   Sufficient detail to demonstrate that the development will achieve compliance with The
           Noosa Plan 2020 – Water Quality and Drainage Code, the Sustainable Building Design
           Code and the State Planning Policy.

Response:
In response to Item 4 of the Information Request, Westera Partners has prepared a Stormwater
Management Report (refer to Attachment E). The key details of the Stormwater Management Report
that demonstrates that the development will achieve compliance with the relevant Noosa Plan codes
and policies are as follows:
▪   The lawful point of discharge for the development will be to the existing stormwater infrastructure
    on Hilton Terrace, with a connection proposed into the existing manhole.
▪   The proposed development will include new on-site stormwater infrastructure to collect stormwater
    runoff and direct it to the lawful point of discharge.
▪   Stormwater detention is unnecessary as the proposed development’s final impervious area is
    consistent with the existing site conditions. The proposed development is not anticipated to
    increase the runoff to such an extent that the downstream drainage cannot cater for the site.
▪   Stormwater quality treatment is proposed to be managed on-site to achieve the water quality
    objectives through treatment from ATLAN filter cartridges in the treatment tank.
Importantly, the Stormwater Management Report concludes that the stormwater runoff for the site will
be appropriately managed in order to ensure that the receiving environment will not be adversely
affected.

CONCLUDING COMMENTS
This information request response, comprising this correspondence together with the accompanying
supporting material, constitutes a complete response response to the Information Request made by
Council on 1 October 2024. The changes made to the architectural plans and specifically the roof
form/streetscape design, as well as the technical reports are in direct response to the matters raised



Ltr - 20241002 - Information Request Response - 100 Hilton Terrace, Noosaville                           10