Silverdale West Dairy Flat Industrial Area Structure Plan April 2020 Table of Contents Table of Contents .................................................................................................................................. 2 Table of Figures .................................................................................................................................... 4 List of Tables ......................................................................................................................................... 5 1 SUMMARY ..................................................................................................................................... 6 Figure i ................................................................................................................................................... 9 PART A: THE STRUCTURE PLAN ..................................................................................................... 10 2 STRUCTURE PLAN PURPOSE, AREA AND PROCESS .......................................................... 10 2.1 Purpose ....................................................................................................................................... 10 2.2 The Silverdale West Dairy Flat Industrial Structure Plan Area .............................................. 15 2.3 Structure plan process and consultation ................................................................................ 16 3 VISION AND OBJECTIVES ......................................................................................................... 19 3.1 The vision ................................................................................................................................................... 19 3.2 Key themes and objectives ......................................................................................................................... 19 4 THE STRUCTURE PLAN ............................................................................................................ 21 4.1 Overview ........................................................................................................................................ 21 4.2 Land Use ........................................................................................................................................ 22 4.3 Transport ....................................................................................................................................... 22 4.4 Wastewater .................................................................................................................................... 27 4.5 Water supply .................................................................................................................................. 29 4.6 Natural Character, Landscape and Visual Effects ..................................................................... 31 4.7 Ecology .......................................................................................................................................... 33 4.8 Stormwater, Flood Management and Water Quality .................................................................. 35 4.9 Cultural Values .............................................................................................................................. 36 4.10 Historic heritage .......................................................................................................................... 39 4.11 Airport .......................................................................................................................................... 39 4.12 Neighbourhood Design Statement ............................................................................................ 40 2 4.13 Staging ......................................................................................................................................... 43 4.14 Infrastructure Funding................................................................................................................ 50 PART B: DEVELOPING THE STRUCTURE PLAN ............................................................................ 52 5 STRATEGIC AND POLICY CONTEXT ....................................................................................... 52 5.1 The Auckland Plan ........................................................................................................................ 52 5.2 Future Urban Land Supply Strategy ........................................................................................... 53 5.3 Long-term Plan .............................................................................................................................. 54 5.4 Auckland Unitary Plan Operative in Part .................................................................................... 55 5.5 National Policy Statements ....................................................................................................... 55 5.6 Iwi Management Plans ............................................................................................................... 57 5.7 Climate change ........................................................................................................................... 57 5.8 Local Board Plans ...................................................................................................................... 58 5.9 Hauraki Gulf Marine Park ........................................................................................................... 60 5.10 Previous Consultation ................................................................................................................ 60 6 TECHNICAL TOPICS ........................................................................................................................ 62 6.1 Industrial Land .............................................................................................................................. 62 6.2 Transport ..................................................................................................................................... 64 6.3 Wastewater .................................................................................................................................... 72 6.4 Water Supply ................................................................................................................................. 73 6.5 Stormwater, Water Quality and Flood Management ............................................................... 75 6.6 Natural Character, Landscape and Visual ............................................................................... 78 6.7 Ecology .......................................................................................................................................... 82 6.8 Open space and recreation ....................................................................................................... 85 6.9 Geotechnical and Land Suitability............................................................................................ 86 6.10 Contaminated Land ..................................................................................................................... 89 6.11 Cultural Values ........................................................................................................................... 90 6.12 Historic Heritage ......................................................................................................................... 92 3 6.13 Airport .......................................................................................................................................... 93 6.14 Health ........................................................................................................................................... 97 Appendix 1 – Supporting documents ............................................................................................... 99 Appendix 2 – Addressing the Structure Plan Guidelines ............................................................. 101 Table of Figures Figure i: Silverdale West Dairy Flat Industrial Area Structure Plan…………………………………….8 Figure 1: Projected total population in Auckland, at five yearly intervals…………………………….9 Figure 2: Silverdale West Dairy Flat Industrial Structure Plan Area locality……………………...…11 Figure 3: Silverdale West Dairy Flat Industrial Structure Plan Area……………………………….…13 Figure 4: Structure planning process……………………………………………………………………..14 Figure 5: Silverdale West Dairy Flat Industrial Area Structure Plan map………………………..…18 Figure 6: Wastewater network extension to service Wainui, FUZ and the Structure Plan Area….24 Figure 7: Water servicing…………………………………………………………………………………….26 Figure 8: Staging Plan………………………………………………………………………………………..41 Figure 9: Northern Future Urban Areas……………………………………………………………….… 47 Figure 10: Indicative future public transport network………………………………………………….58 Figure 11: Indicative cycle network………………………………………………………………………..59 Figure 12: Possible extent of four lane capacity requirement………………………………………..60 Figure 13: Indicative four lane arterial…………………………………………………………………….61 Figure 14: Indicative two-lane collector road………………………………………………………….…61 Figure 15: Off road walking and cycling route…………………………………………………………..61 Figure 16: Northern supply area trunk system…………………………………………………………..67 Figure 17: Floodplain extent………………………………………………………………………………...69 Figure 18: Landscape character and landscape