PA2906-Coastal Hazard Assessment-R1 · MCU21/0212

                                         Internal use only




1           Introduction
Royal HaskoningDHV (RHDHV) has been engaged by Gavin and Catherine Deane, the owners of 66
Seaview Terrace (Lot 69 on RP81810), Sunshine Beach to undertake a coastal hazards assessment in
relation to the subject property.

The subject site is currently vacant, and the owners intend to construct a three-level house. The site is
subject to coastal planning constraints layers and this coastal hazard risk assessment is required to
address the assessment requirements of Noosa Shire Council and the State Assessment Referral
Agency.

The assessment reported herein provides a site-specific assessment of erosion hazard risk, including a
reassessment of the erosion prone area width and an assessment of the beach erosion likely to occur with
an extreme storm event. Accordingly, it provides an estimate of erosion vulnerability along this section of
beach and will be used to address the assessment criteria considered by Noosa Shire Council and the
Queensland Government. It should be noted that that the erosion prone area reported is an estimate of
erosion vulnerability and does not consider the likely planning response to beach erosion for previously
developed coastal areas.

Previous development applications for other properties in Seaview Terrace, Sunshine Beach had
considered the extent of erosion likely to occur with an extreme storm event. These previous
development applications were decided through a Planning and Environment Court ordered mediation
processes between the applicants and Noosa Shire Council. For these previous development
applications an extreme event consisting of a 500 year ARI storm tide level, sea level rise of 0.8 metres
and a 100 year ARI significant wave height was agreed through mediation and adopted as the criteria for
the design of the building foundations.

The assessment in this report has adopted the same criteria as the assessments for the previous
developments within Seaview Terrace, Sunshine Beach.




15 October 2021   66 SEAVIEW TERRACE, SUNSHINE BEACH                PA2906-RHD-ZZ-XX-RP-Z-0001     5