Cumberland Flood Management Conditions

12. DACCA01 - Amendments to Approved Plans Amended plans/documents shall be submitted to the Council or registered certifier prior to the issue of a Construction Certificate to address the following matters: Design of privacy screens to “Open Hallways” The design of privacy screens situated along the “Open Hallways” on the Ground Floor Level and Level 1 of the building shall comprise fixed angled louvres to ensure view lines are redirected away from the neighbouring property to the south at 8 Milner Road, Guildford Flooding a) Landfill over the existing natural ground profile at the rear is not permitted. The proposed landfill as shown on the architectural plans must be deleted. b) The…

49. DACCO05 - Parking and Access Parking layouts, driveways, internal ramps, turning areas and parking spaces are to ensure compliance with applicable provisions of AS2890.1:2004 including: a) Circulation roadways and ramp widths shall comply with section 2.5.2. b) Circulation ramp grades and transitions are to comply with section 2.5.3. A longitudinal section along the steepest side the ramp demonstrating compliance shall be prepared. c) Kerbs shall be at least 300mm wide and 150mm high to either side of a ramp. d) Pedestrian sight distances are to be provided in accordance with section 3.2.4. e) Headroom clearance measured from the floor to the underside of any ceiling, beam, ventilation…

46. DACCZ02 - Connection to Council’s stormwater system - design The design for the Connection to Council’s stormwater pipe system shall be designed in Consultation with Council’s Stormwater and Flood Management Planner. In this regard, a) Existing Council’s stormwater pit and pipes shall be annotated on the plans. b) Proposed V grate surface inlet pit shall be modified as grated kerb inlet pit. c) Longitudinal section of the existing/proposed stormwater pipes and the stormwater connection details to the existing stormwater pipe within the Council land, showing the exact depth and location of all the services within the area of the proposed works shall be submitted. d) Service search…

19. Stormwater disposal Any future Development The DA is accompanied by Application/s for construction works Stormwater Plans and a Flood are to provide a Stormwater Study Report. The application Concept Plan showing the proposed has been determined as method of stormwater collection and satisfactory from a stormwater disposal. An on-site stormwater disposal by Council’s Senior detention storage system shall be Development Engineer, subject provided in accordance with to conditions. Council’s DCP requirements. In addition, following matters shall be noted: a) Onsite Stormwater Detention (OSD) shall be clear of building floor areas. b) Compensatory flood storage shall be separate from OSD.…

11. DACCA01 - Amendments to Approved Plans Amended plans/documents shall be submitted to the Council or registered certifier prior to the issue of a Construction Certificate incorporating the following matters: a) The Retail 01 and Retail 02 floor levels shall be raised to 21.3m AHD to comply with flood planning level. b) A crest shall be provided in the access ramp within the site to prevent stormwater runoff from the street enters the basement. The crest shall be above the adjacent top of kerb level. The crest shall form part of access ramp design. The ramp shall also comply with Australian standard AS2890.1. Ramp gradient shall be 1 in 20 for first 6.0m into the car park. c) Signs shall…

128. DAOCI15 - Restriction of the Use of Land - Overland Flowpath A restriction on the use of land shall be created under section 88B and/or section 88E of the Conveyancing Act 1919 to the satisfaction of Council preventing alteration to the flowpath represented by the 1% Annual Exceedance Probability flood level identified in the approved Flood Impact Assessment Report without the prior approval of the Council. Council shall be identified as the authority with power to release, vary or modify the restriction. The wording of the restriction shall be submitted to and approved by Council prior to lodgement for registration on the title of the land. Document Set ID: 11758583 Version: 1,…

124. DAOCI04 - Satisfaction of Hydraulic Requirements - Flood Affected Land Written verification from a suitably qualified hydraulic engineer shall be provided to the principal certifier stating that: a) Requirements, recommendations and mitigation measures of the Flood Impact Assessment Report have been implemented and complied with; b) The habitable and non-habitable areas floor level complies with the minimum floor level and freeboard requirements; and c) The completed development will have no adverse impact on adjoining properties, will not increase flood levels and will not extend land affected by flooding. (Reason: To ensure works will not adversely affect neighbouring land and will…

36. DACCZ05 - Flooding Written verification from suitably qualified hydraulic engineer shall be obtained, stating the following: a) the relevant Construction certificate plans comply with Council’s flood advice letter, Council’s Flood Risk Management Policy and NSW Floodplain Development Manual 2023. b) Floor levels comply with Council’s Flood Advice Letter. c) Overland flow paths through the site are maintained. d) The development has no adverse impact on flood levels and/or adjoining properties. The written verification shall be submitted to and approved by the Registered Certifier. (Reason: to ensure construction plans comply with the approved flood study report and Council’s Flood…

123. DAOCI04 - Satisfaction of Flood Requirements - Flood Affected Land Written verification from a suitably qualified flood engineer shall be provided to the principal certifier stating that: a) Requirements, recommendations and mitigation measures of the Flood Impact Assessment Report have been implemented and complied with; b) The Retail 01 and Retail 02 floor levels complies with flood planning level of 21.3m AHD; and c) The completed development will have no adverse impact on adjoining properties, will not increase flood levels and will not extend land affected by flooding. (Reason: To ensure works will not adversely affect neighbouring land and will not exacerbate localised flooding)

83. DAOCH02 - Covenant for Stormwater Infrastructure Prior to the issue of the relevant Occupation Certificate, a positive covenant shall be created under section 88B and/or section 88E of the Conveyancing Act 1919 to the satisfaction of Council for the ongoing retention, maintenance and operation of the stormwater system inclusive of any on-site stormwater detention, together with any related compensatory flood storage, overland flowpath, pollution control device, mechanical pump-out system or charged line system. Council shall be identified as the authority with power to release, vary or modify the covenant. (Reason: Compliance and adequate maintenance of the stormwater system)

87. DAOCZ02 - Flood Evacuation An evacuation report and procedure shall be prepared by an appropriate consulting engineer. This report is to demonstrate how the occupants of the development will egress the site in the early stages of a storm event, together with how they will seek refuge in a peak stormwater event (i.e. first floor of the building etc.). The report shall be submitted to the Principal Certifying Authority prior to the issue of the relevant Occupation Certificate. A copy of the report shall be attached to the relevant Occupation Certificate when forwarded to Council. (Reason: to make property owners/residents aware of the procedure in the case of flood)

51. DACCO02- Flooding Floor Levels Floor levels shall comply with the Council’s flood advice letter and the approved flood impact assessment report by providing a minimum floor level for all habitable areas of 29.3m AHD as shown on the floor plan, being 0.5m above the flood level at the upstream side of the structure and a minimum floor level for non-habitable areas of at least 28.35m AHD, being 0.15m above the flood level at the upstream side of the structure. Detailed plans demonstrating compliance are to be submitted with the construction certificate application. (Reason: To provide acceptable levels of safety in the event of flooding)

21. Flood Risk Any future Development The DA is accompanied by a Management Application/s are to comply with the Flood Study Report. provisions of the Stormwater and Drainage part of the Auburn Development Control Plan 2010 Cumberland Development Control Plan 2021. Document Set ID: 11516879 Version: 2, Version Date: 02/04/2025 Supporting documents shall be prepared and submitted with any future Development Application/s demonstrating that the development complies with the controls nominated in Table 5 Table 3 in the Appendix of Council’s Flood Risk Management Policy Stormwater Drainage part of the Auburn Development Control Plan 2010.

22. Hydraulic Engineering Any future Development The DA is accompanied by a Design Certificate Application/s for construction are to Flood Study Report. provide written verification from a suitably qualified hydraulic engineer, stating that: a) The plans comply with he approved Flood Study Report. b) All the subfloor areas specified in the flood report shall be open and allow for the overland flow of water. c) The development has no adverse impact on flood levels and/or adjoining properties. Electronic copy of the flood modelling shall be submitted any future Development Application/s for construction.

11. DACCA01 - Amendments to Approved Plans Amended plans/documents shall be submitted to the Council or registered certifier prior to the issue of the relevant Construction Certificate incorporating the following matters: a) The flood lights for the netball courts situated at the north western corner of the site shall be protected during construction and retained. b) The retaining walls adjacent to the adjacent road and car park shall be lit at night or streetlights shall be installed to improve CPTED and general safety. (Reason: To confirm and clarify the terms of Council’s approval)

127. DAOCI14 - Positive Covenant - Overland Flowpath A positive covenant shall be created under section 88B and/or section 88E of the Conveyancing Act 1919 to the satisfaction of Council requiring the ongoing retention, maintenance and repair of the overland flowpath. Council shall be identified as the authority with power to release, vary or modify the covenant. The wording of the covenant shall be submitted to and approved by Council prior to lodgement for registration on the title of the land. (Reason: To ensure proper upkeep and functionality of the on overland flowpath)

153. DAOUZ01 - Annual maintenance inspection of OSD system, and Overland Flood Path An annual maintenance inspection summary of the OSD system, and overland flood path with associated certification shall be carried out as per the maintenance schedule. In this regard, • All critical inspections shall be carried out by a qualified person. • A maintenance logbook shall be maintained as per the approved maintenance schedule on site and be readily available for inspection by Council. (Reason: To ensure the OSD system and overland flood path are maintained in good working order)

52. DACCO03- Hydraulic Engineering Design Verification Written verification from suitably qualified hydraulic engineer shall be provided to the Council or registered certifier stating that construction certificate plans comply with the approved flood report including any recommended flood mitigation measures and that the development will have no adverse impact on flood levels for adjoining properties. (Reason: To ensure a suitable design that will achieve reasonable levels of safety during flood events without impacting upon adjoining properties)

52. DACCZ02 - Flood Compliance Subject development shall comply with Council’s Flood Risk Management Policy (CFRMP). In this regard: a) Flood advice letter from Council shall be obtained. b) Supporting documents shall be prepared by suitably qualified engineer in order to ensure that the development complies with the controls nominated in the Appendix (page 6) of the CFRMP. c) Supporting documents shall be submitted to and approved by Council or registered certifier. (Reason: To reduce flood risk to the people and properties)

131. DAOCZ03 - Maintenance Schedule for On-Site Detention (OSD) stormwater System A maintenance schedule for the stormwater OSD system and the overland flow path, including a sketch plan of the components forming the site’s systems shall be prepared by a qualified hydraulic engineer and shall be in accordance with the Upper Parramatta River Catchment Trust requirements inclusive of annual maintenance inspection. (Reason: Maintain the OSD system)

132. DAOCZ04 - Emergency Flood Evacuation Plan As the site is identified as being affected by the Probable Maximum Flood (PMF) event, an emergency flood evacuation plan shall be prepared detailing how occupants are to travel to a safe refuge at a location higher than the PMF flood level whether on or off site. A copy of the report and the plan shall be submitted to Council. (Reason: Resident safety in the event of a flood)

151. DAOUH01 - Boundary Fencing for Flood Affected Land Fencing within the 100 year average recurrence interval flood level shall not impede overland flows. Measures such as the provision of open type pool fencing must be incorporated for those areas below the 100 year average recurrence internal flood level. (Reason: To ensure overland flow is maintained and that any localised flooding is not exacerbated)

134. DAOUA19- Lighting Nuisance The use of floodlighting or the like, to advertise or attract attention or for the convenience of patrons must be controlled so as not to cause any distraction or disturbance to nearby or adjacent residents, pedestrians or motorists. The use of flashing lights is prohibited. (Reason: Environmental amenity)

80. DAOUA19- Lighting Nuisance The use of floodlighting or the like, to advertise or attract attention or for the convenience of patrons must be controlled so as not to cause any distraction or disturbance to nearby or adjacent residents, pedestrians or motorists. The use of flashing lights is prohibited. (Reason: Environmental amenity)

53. DACCO04- Flood Safety - Electrical Connections and Flood Sensitive Equipment All new electrical connections and flood sensitive equipment must be located above a freeboard level of 0.5m above the 1% annual exceedance probability flood level. (Reason: To provide reasonable levels of safety)

127. DAOCZ01 - Flood Evacuation Plan Flood evacuation plan shall be prepared by suitably qualified person. The documents showing the compliance of above shall be submitted to and approved by Principal Certifier. The evacuation plan shall be in force at all times. (Reason: To ensure safety)

53. DACCZ02 - Access Ramp Crest The access ramp crest at the basement entry shall be minimum 24.550m AHD. In this regard, supporting documents shall be submitted to and approved by Council or registered certifier. (Reason: To reduce flood risk to the people and properties)

152. DAOUH08 - Flood Evacuation Procedures The approved flood evacuation plan, including identification of a refuge point, is to be displayed in a prominent position within the building. (Reason: To promote flood safety awareness)

151. DAOUH08 - Flood Evacuation Procedures The approved flood evacuation plan, including identification of a refuge point, is to be displayed in a prominent position within the building. (Reason: To promote flood safety awareness)