Sutherland Flood Management Conditions

7. School Operation i. Prior to any increase in staff/student numbers approved under this development consent, all works in relation to the construction of the staff car parking area and external public domain works including the Banskia Street raised pedestrian crossing are to be completed and certified for use. In addition the temporary demountable buildings are to be removed. ii. The school must operate in accordance with the Plan of Management (PoM) prepared by Currie and Brown dated 4 March 2025. The PoM must also be updated to include the items below. ii. The maximum number of students enrolled and staff at the school must not exceed 1260 students and 107 staff in any one school year.…

Sutherland Shire Local Environmental Plan 2015 in that high quality design and development outcome for the urban environment of Sutherland Shire has not been attained nor that the natural environment adequately protected. The development fails to adequately acknowledge and fit appropriately within the established low density residential context. vi. The proposal fails to satisfy the objectives of Clause 5.21 / 5.22 (Flood Planning / Special Flood Considerations), along with Clause 6.4 (Stormwater Management) of Sutherland Shire Local Environmental Plan 2015. The application fails to demonstrate the suitability of the site for the proposed sensitive land use or provide suitable information…

8. Flood Requirements Before the issue of any construction certificate, the certifier must ensure the construction certificate plans and specifications detail the following required amendments to the approved plans and documents: a) To ensure the building is outside of the floodplain extents up to and including the PMF, external works must ensure floodproofing at the south-east corner of the development to a minimum 400mm height above the invert of the adjacent kerb/kerb ramp. Floodproofing elements such as pavements, steps and walls must form the continuous protective barrier. b) A suitably qualified engineer must certify that floodwall structures, retaining walls and the diversion channel…

22. Engineering design certification Certification from an appropriately qualified engineer to the effect that the design requirements of upgrading suction outlet, major stormwater/treatment and internal driveway, access and flooding have been met. A copy of this certification must accompany any construction certificate application. Condition reason: Ensure the engineering design complies with Australian Standards, NSWF&R document “Access for Fire Brigade Vehicles and Firefighters and councils DCP. DA24/0346 PAGE 10

73. Flood Emergency Response Plan Prior to the issue of any Occupation Certificate, a Flood Emergency Response Plan must be prepared by a suitably qualified engineer with expertise in flood emergency management to advise of evacuation processes and address risks in the case of a flood event. The Plan must be a standalone document consistent with Clause 5.22 of the Sutherland Shire Local Environmental Plan 2015 and include:

72. Completion of Engineering Works - Flooding A certification from an appropriately qualified engineer to the effect that the requirements for flooding have been completed to their satisfaction, in accordance with Clause 5.22 of the Sutherland Shire Local Environment Plan 2015, the development consent and any relevant Australian Standards. This includes the following:

2. Floodwall structures, retaining walls and the diversion channel can withstand the forces of floodwater, scour and debris at minimum 400mm flow depth. A copy of this certification must accompany any occupation certificate application. Condition reason: Ensure engineering works are constructed in accordance with the approved plans.

9. Consideration of the NSW Shelter-in-Place Guideline 2025 (where suitable). The above Flood Emergency Response Plan must be incorporated into the Plan of Management for the school. Condition reason: Ensure safe occupation and evacuation of the development in the event of a flood. OCCUPATION AND ONGOING USE Condition

80. Flood requirements All recommendations in the Flood Emergency Response Plan must be adopted and maintained at the site with a copy made available to occupants of the school. DA24/0346 PAGE 24 The site Flood Emergency Response Plan is to be regularly reviewed and must be updated when any of the following occurs:

1. The building must be outside of the floodplain extents up to and including the PMF.

4. Flood warning signs, evacuation signage and emergency drills

3. Flood education and awareness measures