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Section 32 - Publicly Notified - 2 May 2015 Appendix 26 – Banks Peninsula Small Settlement Area Summary Assessments Page 1

Appendix 26 – Banks Peninsula Small Settlement …resources.ccc.govt.nz/files/TheCouncil/policiesreports...Section 32 - Publicly Notified - 2 May 2015 Phase 2 – Residential Chapter

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Page 1: Appendix 26 – Banks Peninsula Small Settlement …resources.ccc.govt.nz/files/TheCouncil/policiesreports...Section 32 - Publicly Notified - 2 May 2015 Phase 2 – Residential Chapter

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Appendix 26 – Banks Peninsula Small Settlement Area SummaryAssessments

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Phase 2 – Residential Chapter 14 – Banks Peninsula Residential Settlement Analysis - Capacity,Constraints and Opportunities for Lyttelton

Key InformationSettlement area: Lyttelton

Attachment A – Lyttelton PlanHousehold demand andsupply:

Refer to Attachment B – Vacant land assessment and preliminaryassessment of land development potential.

Summary of growthpotential and future needfor change.

There is limited growth potential in Lyttelton, beyond that alreadyzoned for residential purposes, due to significant geotechnical andland access constraints.

Transportation: Norwich Quay is a major arterial, state highway and strategic freightroute from the tunnel to Oxford Street, Simeon Quay, BrittanTerrace, Sumner Road and part of Oxford St are all Minor Arterials.Factors to consider with possible future development include itseffect on existing issues with demand for on street parking andaccess on steep, narrow, winding hill streets and terraces, typicallywith relatively low speed and low volume. The level of service forpedestrians is variable, and in many cases limited and may not belinked. Irregular intersection layouts with varying levels of serviceand capacity. Property / legal road boundaries may differ than whatappears on the ground to be the case. Existing properties may haveno or limited off street parking. Limited visibility/sightlines can be aconstraint in places depending on conditions. Ongoing SCIRT /maintenance work, earthquake repairs which impacts on trafficoperations, including vegetation control which has an effect onmany of the aspects above. Closure of Lyttelton West School sitewill result in increased walking / travel for some children andparents. Port Operations and the subsequent level of heavy vehicletraffic. Linkages with off-road recreational walking tracks.

Wastewater Management: There is a wastewater network for Lyttelton, Cass Bay and Rapaki. Aseries of pump stations pump wastewater from Rapaki, Cass Bayand Corsair Bay to the Lyttelton Wastewater Treatment Plant. Theplan is to decommission the Lyttelton, Diamond Harbour andGovernors Bay Wastewater Treatment Plants, and pump allwastewater from these settlements through the tunnel to theChristchurch Wastewater Treatment Plant for treatment anddisposal. There is no readily available information about thecapacities of the pump stations; pump tests would need to becarried out to establish these.

Water SupplyManagement:

A full water supply network and reservoirs are provided in Lyttelton,fed from the city side of the Port Hills through pipelines in both theroad tunnel and the rail tunnel. From Lyttelton water is supplied inunder the harbour pipelines to Diamond Harbour, Church Bay andCharteris Bay, and through a pipeline along the north side of theharbour to Corsair Bay, Cass Bay, Rapaki and Governors Bay. Thereis capacity in the system to accommodate predicted householdincreases to 2041 in the harbour basin.

Stormwater Management: The basis of the Lyttelton drainage system is the network of brickbarrel drains running from the catchments above the developed

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area to the harbour. A network of smaller pipes collect water infrom the roads and surrounding areas feeding it into the barrels.The brick barrels were constructed circa 1885 and now require workto restore them to a sustainable state. There is a repair projectscheduled for the next four to five years.The inlets to the brick barrel drains also require improvements toimprove safety and reduce the risk of blockages occurring. Thesteep catchment is not served well with secondary flow paths.Many natural secondary flow paths have been now been obstructedby development. The Canterbury Creek inlet above Somes Rd isplanned to be upgraded during 2014/2015. Following theearthquakes a number of places have been experiencing seepageissues. These may be caused by natural events or breakages insmall private stormwater drainage pipes. Due to the age of theLyttelton area a large proportion of the pipes are clay orearthenware and many are likely to have been damaged.Fine sediment washes out of areas of tunnel gully erosion and thisleads to some blockages of the system and also discharges into theharbour The road sumps inlets are not well designed for the steephills. Inlets do not capture high speed flows well and also blockquickly with debris. This can lead overloading of downhill intakesand cause damage due to uncontrolled overflows onto propertiesbelow the road.

Inundation from sea levelrise and tsunami risk

Significant risk from tsunami inundation and will be affected by sealevel rise.

Land instability risks: Slope instability is a significant issue, in particular around theperiphery of the settlement.

Settlement Character: Lyttelton is a well established township that provides for a range ofhousing types and low to medium density development. Areaswithin the township have heritage value and the Port of Lyttelton isan anchoring activity and feature of the area.

Areas of significantenvironmental value:

Ecological/biodiversity – No sites of ecological significance havebeen identified in the Lyttelton residential zones. See planningmaps 52 and R1.Landscape- The Operative BPDP includes areas of high coastalnatural character. Refer also to the Draft Natural and CulturalHeritage Chapter 9 for the identification of outstanding andsignificant landscapes.

Areas of significance totangata whenua:

Ōhinehou was an ancient pā, probably situated on a golden beachnear to the Lyttelton tunnel mouth. The pā dates back to the timeof Ngāti Māmoe. The name Ōhinehou refers to a young girl (hine)who was abducted by the Patupaiarehe (fairies) and changed into anew person. For more information see:http://my.christchurchcitylibraries.com/ti-kouka-whenua/ohinehou/

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Attachment A: Settlement Map of Lyttelton

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Attachment B: Vacant Land Overview of Lyttelton

Vacant Land Type descriptions:1) Vacant Lot - Vacant land under 4000m2. In 2005 this was split into 'Redeveloped lot' and 'Subdivision lot.'2) Redeveloped Lot - Existing vacant land parcels under 4000m2 that have had a dwelling demolished and the land has not been rebuilt on (not previously in the Vacant Land Register).3) Subdivided Lot - Vacant parcels under 4000m2 that have not previously been built on (resulted from the subdivision of a previous piece of Vacant Land).4) Undeveloped - Vacant parcels over 4000m2 with no dwelling or over one hectare with a dwelling.5) Potential for development - Vacant parcels with a dwelling that are over 4000m2 and less than one hectare.6) Deferred Zoning - Vacant parcels that cannot be developed until something has occurred eg Infrastructure or Development Plan.7) Under Appeal - Vacant parcels that are currently zoned residential but are under appeal/reference to the Environment Court.

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Attachment C: Transport

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Phase 2 – Residential Chapter 14 – Banks Peninsula Residential Settlement Analysis - Capacity,Constraints and Opportunities for Cass Bay and Rapaki

Key InformationSettlement area: Cass Bay and Rapaki.

Attachment A – Cass Bay and Rapaki Plan.Household demandand supply:

Refer to Attachment B – Vacant land assessment and preliminaryassessment of land development potential.

Summary of growthpotential and futureneed for change:

Whilst there is some land area zoned for residential and/or papakaiangahousing, there are significant land development constraints, specificallyland instability constraints.

Transportation: Capacity and visibility constraints at intersections. Minor arterial and overdimension route operating on the main road through the settlements.Difficulties may exist at times for vehicle and pedestrian access across themain road. On street parking demands in both Cass Bay and Rapaki high attimes, in particular in summer and when events take place. Existingcarriageway widths in Rapaki narrow and constrained. Variable level ofservice for pedestrians. Vehicle speeds past Rapaki tend to be higher aslimited frontage development, and hence a higher speed limit.

WastewaterManagement:

There is a wastewater network for Lyttelton, Cass Bay and Rapaki. A seriesof pump stations pump wastewater from Rapaki, Cass Bay and Corsair Bayto the Lyttelton Wastewater Treatment Plant. If the land developmentpotential in Rapaki and Cass Bay was fully realised, upgrades to thewastewater trunk main and pump stations at Rapaki, Cass Bay and ParkTerrace may be required.

The plan is to decommission the Lyttelton, Diamond Harbour andGovernors Bay Wastewater Treatment Plants, and pump all wastewaterfrom these settlements through the tunnel to the ChristchurchWastewater Treatment Plant for treatment and disposal. If this projectdoes not proceed, then an upgrade to the Lyttelton WastewaterTreatment Plant would be required to accommodate the extra load if theland development potential was fully realised.There is no readily available information about the capacities of the pumpstations; pump tests would need to be carried out to establish these.

Water SupplyManagement:

A full water supply service is available in Cass Bay and Rapaki; the supply isfed from the Lyttelton system.

StormwaterManagement:

Cass BayThe main drainage system consists of a series of waterways made up ofopen and piped sections. Some portions of the open waterways areconcrete or rock lined; others are natural. The waterway have beenheavily scoured in recent storms causing damage to linings andundermining structures close to the waterway.

Rapaki

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The main drainage for Rapaki is through the open waterways. In generalthese are natural, i.e. unlined. Road drainage has very limited capacity andis ineffective at controlling run-off in heavy rain events.The upper catchments in these areas are prone to tunnel gully erosion andthis feeds a large quantity of fine sediment into the drainage system. Thesediment either settles in slow flowing areas of drain such as behinddebris and in flat sections or passes through the system into the harbour.

Inundation from sealevel rise and tsunamirisk:

Significant risk from tsunami inundation and will be affected by sea levelrise.

Land instability risks: Slope instability is a significant issue, in particular around the upperslopes.

Settlement Character: Very small coastal settlement with a mix of older and new housing.Areas of significantenvironmental value:

Ecological/biodiversity – No sites of ecological significance have beenidentified in the Cass Bay or Rāpaki residential zones. See planning mapR1.Landscape- The Operative BPDP includes areas of high coastal naturalcharacter. Refer also to the Draft Natural and Cultural Heritage Chapter 9for the identification of outstanding and significant landscapes

Areas of significanceto tangata whenua:

Cass Bay – The Māori name for Cass Bay is Motu-kauati-rahi, whichmeans great fire-making tree grove. This bay was home to manykaikōmako trees that were used for fire-making through wood friction.The story of the myth behind the naming of the bay evolved from thelegendary Mahuika, who threw fire from his finger tips into the kaikōmakotree. There are no longer any of these ancient fire making trees growingon the shores of either bay. For more information see:http://my.christchurchcitylibraries.com/ti-kouka-whenua/tapoa-motu-kauati-iti/Rapaki – The name Rāpaki recalls the actions of the chief TeRakiwhakaputa who threw down his rāpaki (waist mat) on the shores ofWhakaraupō thus claiming the land for Ngāi Tahu.Kai moana and the gathering of it have always played an important role atRāpaki. Manuhiri visiting Rāpaki would have looked forward to a hākari oflocal kai moana which was once abundant in the area. The traditional fishassociated with the area is pioke (dried rig).Today the stocks of kai moana are greatly reduced but Te Hapū o NgātiWheke Inc. is working to re establish traditional fisheries. Rāpaki becamethe site of the world’s first Mātaitai reserve in 1998. Mātaitai reservestatus means that Te Hapū o Ngāti Wheke Inc. has the mandate tomanage customary fishing resources at Rāpaki.Other significant landmarks in Rāpaki include the Whare Karakia (church),the schoolhouse, and the Jetty that was named Gallipoli in remembranceof local men who fought and died there in WW1. For more informationsee: http://my.christchurchcitylibraries.com/ti-kouka-whenua/rapaki-marae/

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Attachment A: Settlement Map of Cass Bay and Rapaki

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Attachment B: Vacant Land Overview of Cass Bay and Rapaki

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Phase 2 – Residential Chapter 14 – Banks Peninsula Residential Settlement Analysis - Capacity,Constraints and Opportunities for Governors Bay

Key InformationSettlement area: Governors Bay

Attachment A – Governors Bay PlanHousehold demandand supply:

There are currently 107 existing vacant lots in Governors Bay with a totalarea of 47hectares. It has been estimated that this land has the potentialto provide an additional 165 residential units (based on approximately2,500m2 sections). Refer to Attachment B – Vacant land assessment andpreliminary assessment of land development potential.

Summary of growthpotential and futureneed for change:

The landscape character assessment (TRIM14/1386937) recommendsthat new development both allows and requires space for generousprivate planting, restricts building size along a contour and sites buildingscarefully to reduce prominence. Risks identified include repetitivedevelopment detracting from the existing creative character and the riskof development occurring in prominent, low vegetated areas beingparticularly visible.Further expansion beyond that already zoned for residential purposeswill be dependant on planned infrastructure upgrades and the fundingand timing of these.

Transportation: Main road through the settlement is a Minor Arterial and is utilised aspart of the Over Dimension Route. Main road is narrow in places withvarying demands for on street parking. Localised carriageway wideningto be considered to assist pinch points. High demand for recreationalcyclists. Provision of pedestrian facilities and linkages variable. Visibilityand layout of intersections a consideration- in particular when comingout onto the main road. Some access roads steep. Speed of vehiclesthrough Governors Bay a concern for some residents. Strong desire linesfor vehicles to link to city via Dyers Pass Road, which is also a MinorArterial. Poor condition of the historic foreshore road (‘Old WaterfrontRoad’) linking Governors Bay to Allandale currently walking and cyclingonly. Likely to be mixed community views on any changes to this.Pavement Maintenance Team input as per Lyttelton summary.

WastewaterManagement:

There is a wastewater network for Governors Bay. A combination ofpump stations and gravity convey wastewater to the Governors BayWastewater Treatment Plant. The plan is to decommission the Lyttelton,Diamond Harbour and Governors Bay Wastewater Treatment Plants, andpump all wastewater from these settlements through the tunnel to theChristchurch Wastewater Treatment Plant for treatment and disposal. Ifthis project does not proceed, some upgrades to the trunk wastewaterpipeline, pump stations may be required, and a capacity upgrade to thetreatment plant would be required, if the land development potential isfully realised.The treatment plant’s flow rate consent limit is sometimes exceededduring storm events, due to high inflow and infiltration. A programme toreduce inflow and infiltration in Governors Bay will be undertaken in thenext few years. There is no readily available information about the

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capacities of the pump stations; pump tests would need to be carried outto establish these.

Water SupplyManagement:

There is a full water supply system of pipes and reservoirs provided inGovernors Bay that is fed from the Lyttelton system from a pipelinearound the coast that also serves Corsair Bay, Cass Bay and Rapaki.

StormwaterManagement:

Stormwater collects into natural waterways that start in the uppercatchment above the developed areas and flow down to the harbour.There are a number of networks consisting of a combination of openchannels and pipes collecting stormwater and conveying it to the naturalwaterways.

Inundation from sealevel rise and Tsunamirisk:

This embayment has extensive tidal mudflats and being at the head ofthe harbour, experiences a low energy wave environment. GovernorsBay has the second steepest of the upper harbour mudflats in theLyttelton Harbour mudflat embayments. This settlement is notparticularly susceptible to contemporary storm surge inundation, nor isthe majority of Governors Bay particularly susceptible to inundation dueto future elevated sea levels due to the higher elevation of thesettlement. Governors Bay is not expected to be at risk for futuretsunami inundation.

Land instability risks: Refer to the Draft Natural Hazards Chapter 5 and Operative BanksPeninsula District Plan maps – slope instability is likely to be an issue andmay require more detailed geotechnical assessments to better identifythe hazards.

Settlement Character: Dwellings nestled in densely vegetated landscape with framed wateroutlooks; gives a sense of discovery. Existing settlement is proudlyinformal whereas new areas of development are yet to integrate.Passive relationship with the water, primarily permanent residents asopposed to holiday homes. Refer to 14/1386937 for further details.

Areas of significantenvironmental value:

Ecological/biodiversity – No sites of ecological significance have beenidentified in the Governors Bay residential zones. See planning maps 57& R1.Landscape- The Operative BPDP includes areas of high coastal naturalcharacter. Refer also to Draft Chapter 9 Natural and Cultural Heritage.

Areas of significanceto tangata whenua:

Nothing in the residential zone. But nearby is the Ōhinetahi valley at thehead of Whakaraupō (Lyttelton) harbour. This was once the site of aheavily stockaded Ngāti Māmoe pā that was stormed by TeRakiwhakaputa of Ngāi Tahu around 300 years ago. After its capture, TeRakiwhakaputa’s son Manuhiri occupied the pā with a party of NgāiTahu.He named the pā after his daughter; Ōhinetahi means The Place of OneDaughter. It is also from this area that the whole of the harbour derivesits name. Whakaraupō means Harbour of the Raupō Reed, and at thehead of the harbour at Ōhinetahi there was once a swamp filled with athick and high growth of raupō. For more information see:http://my.christchurchcitylibraries.com/ti-kouka-whenua/ohinetahi/

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Attachment A: Settlement Map of Governors Bay

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Attachment B: Vacant Land Overview of Governors Bay

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Phase 2 – Residential Chapter 14 – Banks Peninsula Residential Settlement Analysis - Capacity,Constraints and Opportunities for Diamond Harbour

Key InformationSettlement area: Diamond Harbour.

Attachment A – Diamond Harbour Plan.Household demand andsupply:

There over 50ha of undeveloped residential land in Diamond Harbour,which is estimated could provided significant additional residentialallotments. Refer to Attachment B – Vacant land assessment andpreliminary assessment of land development potential.

Summary of growthpotential and future needfor change:

Diamond Harbour has a significant amount of undeveloped residentialland. Further investigation is required to ascertain whether this landcan be developed in the immediate future and whether any landdevelopment constraints can be resolved.

Transportation: Main road, Marine Drive to Purau Ave, is a Collector. Pedestrianfacilities / level of service limited in places. Constraints and visibility atintersections, in particular due to winding nature of Marine Drive,topography, banks, retaining walls, vegetation etc. Parkingimprovements possible to service commercial area / Stoddart Point /Wharf. Limited options in terms of access roads in and out of DiamondHarbour. Pavement maintenance input as per Lyttelton comments.

Wastewater Management: There is a wastewater network for Diamond Harbour. A combinationof pump stations and gravity convey wastewater to the DiamondHarbour Wastewater Treatment Plant. The plan is to decommissionthe Lyttelton, Diamond Harbour and Governors Bay WastewaterTreatment Plants, and pump all wastewater from these settlementsthrough the tunnel to the Christchurch Wastewater Treatment Plantfor treatment and disposal. If this project does not proceed, someupgrades to the trunk wastewater pipeline and pump stations may berequired if the land development potential is fully realised. While thereis sufficient capacity at the treatment plant, its flow rate consent limitis sometimes exceeded during storm events, due to high inflow andinfiltration. A programme is underway to reduce inflow and infiltrationin Diamond Harbour.There is no readily available information about the capacities of thepump stations; pump tests would need to be carried out to establishthese

Water SupplyManagement:

A full on demand water supply of pipes and reservoirs is provided inDiamond Harbour from Lyttelton through twin pipelines under theharbour. There is capacity to increase the number of propertiesreceiving a water supply. This has recently been done by connectingCharteris Bay to the Diamond Harbour system.

Stormwater Management: Many properties in the area have redundant roof water collectiontanks which are still receiving stormwater. The water in these is notbeing used as much since the water was reticulated and this is causinga lot of overflow issues. There is an opportunity for bettermanagement of stormwater using the existing tanks by usingcontrolled outflows to buffer peak channel flows in storm events. A

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number of properties drain through private pipelines to the roadsidechannels which then drain to natural waterways. Other propertiesdischarge to ground either through soakage or direct surface outlets.The Black Point subdivision has a reticulated stormwater systemdischarging through filter tanks to the harbour.

Inundation from sea levelrise and tsunami risk.

Diamond Harbour is a rocky cliff backed embayment with a steep rockyforeshore and no intertidal mudflats. The settlement will at low riskfrom tsunami and sea level rise.

Land instability risks: Refer to the Draft Natural Hazards Chapter 5 and Operative BanksPeninsula District Plan maps – slope instability is likely to be an issueand may require more detailed geotechnical assessments to betteridentify the hazards, in particular regarding tunnel gully erosion andsmall scale loess instability.

Settlement Character: Diamond Harbour is a well developed north facing residential area thathas developed along the coastline and up onto the lower parts of thespurs. It provides for a range of housing types and is well supportedwith community facilities and services.

Areas of significantenvironmental value:

Ecological/biodiversity – No sites of ecological significance have beenidentified in the Diamond Harbour residential zones. See planningmaps 59, 61, 62 and R1.Landscape- The Operative BPDP includes areas of high coastal naturalcharacter. Refer also to the Draft Natural and Cultural HeritageChapter 9 for the identification of outstanding and significantlandscapes.

Areas of significance totangata whenua:

Requires further assessment and consultation with local runanga.

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Attachment A: Settlement Map of Diamond Harbour

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Attachment B: Vacant Land Overview of Diamond Harbour

Vacant Land Type descriptions:1) Vacant Lot - Vacant land under 4000m2. In 2005 this was split into 'Redeveloped lot' and 'Subdivision lot.'2) Redeveloped Lot - Existing vacant land parcels under 4000m2 that have had a dwelling demolished and the land has not been rebuilt on (not previously in the Vacant Land Register).3) Subdivided Lot - Vacant parcels under 4000m2 that have not previously been built on (resulted from the subdivision of a previous piece of Vacant Land).4) Undeveloped - Vacant parcels over 4000m2 with no dwelling or over one hectare with a dwelling.5) Potential for development - Vacant parcels with a dwelling that are over 4000m2 and less than one hectare.6) Deferred Zoning - Vacant parcels that cannot be developed until something has occurred eg Infrastructure or Development Plan.7) Under Appeal - Vacant parcels that are currently zoned residential but are under appeal/reference to the Environment Court.

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Phase 2 – Residential Chapter 14 – Banks Peninsula Residential Settlement Analysis - Capacity,Constraints and Opportunities for Allandale and Samarang Bay

Key InformationSettlement area: Allandale and Samarang Bay

Attachment A – Allandale and Samarang Bay PlanHousehold demand andsupply:

Refer to Attachment B – Vacant land assessment and preliminaryassessment of land development potential.

Summary of growthpotential and future needfor change:

Allandale 24 lots (7 developed) and Samarang 8 (1 developed). Furtherdevelopment adjoining these areas is unlilley to meet theconsolidation of growth objectives.

Transportation: As per Governors Bay regarding historic ‘Old waterfront Road’. Mainroad Minor Arterial and part of Over Dimension Route. Vehicle speedshigher. Popular with recreational cyclists. Visibility and capacityconstraints at intersections a consideration.

Wastewater Management: There is onsite wastewater treatment and disposal in Allandale asthere is no public wastewater network in Allandale. Council has noplans to extend the wastewater network from Governors Bay toservice Allandale.

Water SupplyManagement:

There is no Council water supply in Allandale and Council has no plansto extend the water network from Governors Bay to service Allandale.

Stormwater Management: The area has some road related drainage channels and culvert pipes.The rest of the area makes use of the natural waterways and shallowsurface flow paths.

Inundation from sea levelrise and tsunami risk:

The Allandale embayment has extensive tidal mudflats and being atthe head of the harbour, experiences a low energy wave environment.This settlement is not particularly susceptible to contemporary stormsurge inundation; however it will be especially vulnerable to future sealevel rise effects. Historic tsunamis have inundated Allandale so it isconsidered at risk for future tsunami inundation.

Land instability risks: Land instability risks were assessed as part of the zone changes toprovide for the rural-residential development. More detailed landinstability assessments would be required should any furtherdevelopment of the area be contemplated.

Settlement Character: Rural –residential areas.Areas of significantenvironmental value:

Ecological/biodiversity – No sites of ecological significance have beenidentified in the Allandale or Samarang Bay residential zones. Seeplanning maps 60 & R1.Landscape- The Operative BPDP includes areas of high coastal naturalcharacter. Refer also to the Draft Natural and Cultural HeritageChapter 9 for the identification of outstanding and significantlandscapes

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Attachment A: Settlement Map of Allandale and Samarang Bay

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Phase 2 – Residential Chapter 14 – Banks Peninsula Residential Settlement Analysis - Capacity,Constraints and Opportunities for Purau

Key InformationSettlement area: Purau

Attachment A – Purau PlanHousehold demand andsupply:

Refer to Attachment B – Vacant land assessment and preliminaryassessment of land development potential.

Summary of growthpotential and future needfor change:

Whilst there is not immediate ability for Purau to expand due towastewater constraints, Purau may have some potential to provide foradditional household growth in the valley area. A mix of low density tolarge lot development could be considered, particularly to encourageland development to remain compatible with the natural landscapeand to avoid high hazard areas. Development along the coastline isnot considered to be appropriate as it will not achieve consolidationand will potential adversely effect the natural and coastal character ofthe bay (refer to the landscape character assessment TRIM14/1386937).

Transportation: Main road (Purau Ave) is a Collector until Port Levy Rd. Pedestrian linksbetween Purau and Diamond Harbour may need to be improved (HeadTo Head Walkway Project may be an opportunity to enhance currentlevel of service). Recreational usage of Camp Bay Road andsurrounding area. Pavement maintenance input- as per Lytteltoncomments.

Wastewater Management: There is onsite wastewater treatment and disposal in Purau as there isno public wastewater network in Purau. Council has no immediateplans to extend the wastewater network from Diamond Harbour toservice Purau, but this could be considered in approximately 10 years’time.

Water SupplyManagement:

There is no public water supply in Purau and Council has no immediateplans to extend the water network from Diamond Harbour to servicePurau, but this could be considered in approximately 10 years’ time.

Stormwater Management: The flat low lying ground along the sea front area of Purau createsdifficulties effectively draining these properties. The lower portions ofthe drains around Purau Ave and Camp Bay Rd are tidal and oftenbecome restricted by build ups of beach material. The propertiesbetween the old camp ground and Purau Port Levy Rd are drainedthrough a network of drains in private drainage easements. Thesehave been poorly maintained and filled in places causing surfaceflooding for much or the winter period. Properties are generallyeither drained to the roadside channels or to the natural waterways.Some rain water is collected for residential use.

Inundation from sea levelrise and Tsunami risk:

Purau has a narrow intertidal mudflat with a gravelly/sand beach andsandy upper foreshore with a low lying hinterland. Purau is notparticularly susceptible to contemporary storm surge inundation;however it will be especially vulnerable to future sea level rise effectsand tsunami risk.

Land instability risks: Refer to the Draft Natural Hazards Chapter 5 and Operative BanksPeninsula District Plan maps – slope instability is likely to be an issue

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and may require more detailed geotechnical assessments to betteridentify the hazards.

Settlement Character: Small scale, older development addresses the beach front with newer,more suburban development discreetly located behind these. Roadarrival around coastline affords open view directly to settlement andenclosing landform. Farmlet/lifestyle character behind settlement isalso “quaint”. Refer to 14/1386937 for further details.

Areas of significantenvironmental value:

Ecological/biodiversity – No sites of ecological significance have beenidentified in the Purau residential zones. See planning maps 62 andR1.Landscape- The Operative BPDP includes areas of high coastal naturalcharacter. Refer also to the Draft Natural and Cultural HeritageChapter 9 for the identification of outstanding and significantlandscapes.

Areas of significance totangata whenua:

Purau Bay is one of the oldest Māori sites of settlement on Horomaka(Banks Peninsula). Moa hunting ancestors probably lived here as isevidenced by the remains of moa ovens. Ngāti Māmoe lived at Puraumore recently and had their fortified pā site on the dominant peak TeAhu Pātiki (Mt Herbert). In later years after Ngāi Tahu took over, thepā site moved to the Western side of the bay where it was occupiedby Ngāi Tūāhuriri and Te Rakiwhakaputa hāpu. The name Purau refersto a traditional mussel basket. The bay has many urupā (tapu burialsites) due to its long history of occupation and was once said to be thehome of a monstrous taniwha called Tuna Tuoro. Te Pōhue, home tothe legendary Patupaiarehe (fairies) also looks down from the ridgedirectly above the bay. For more information see:http://my.christchurchcitylibraries.com/ti-kouka-whenua/purau/.

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Attachment A: Settlement Map of Purau

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Attachment B: Vacant Land Overview of PurauVacant Land Type descriptions:1) Vacant Lot - Vacant land under 4000m2. In 2005 this was split into 'Redeveloped lot' and 'Subdivision lot.'2) Redeveloped Lot - Existing vacant land parcels under 4000m2 that have had a dwelling demolished and the land has not been rebuilt on (not previously in the Vacant LandRegister).3) Subdivided Lot - Vacant parcels under 4000m2 that have not previously been built on (resulted from the subdivision of a previous piece of Vacant Land).4) Undeveloped - Vacant parcels over 4000m2 with no dwelling or over one hectare with a dwelling.5) Potential for development - Vacant parcels with a dwelling that are over 4000m2 and less than one hectare.6) Deferred Zoning - Vacant parcels that cannot be developed until something has occurred eg Infrastructure or Development Plan.7) Under Appeal - Vacant parcels that are currently zoned residential but are under appeal/reference to the Environment Court.

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Phase 2 – Residential Chapter 14 – Banks Peninsula Residential Settlement Analysis - Capacity,Constraints and Opportunities for Pigeon Bay

Key InformationSettlement area: Pigeon Bay

Attachment A – Pigeon Bay PlanHousehold demand andsupply:

There are currently 9 existing vacant lots in Pigeon Bay with a totalarea of 6 hectares. It has been estimated that this land has thepotential to provide an additional 22 residential units (based onapprox 2,500m2 sections).Refer to Attachment B – Vacant land assessment and preliminaryassessment of land development potential.

Summary of growthpotential and future needfor change:

The landscape character assessment (14/1386937) notes that furtherlarge scale development along the foreshore or up the sides of thevalley may compromise the small, isolated feeling of the settlement.As such, it recommends that development be encouraged on theslope of Starvation Gully Road next to the existing settlement (to theeast) rather than along the foreshore.

Transportation: All roads are Local Roads. No specific comments given low potentialresidential units.

Wastewater Management: There are no Council wastewater services provided in Pigeon Bay. Allproperties will be on their own septic tank systems.

Water SupplyManagement:

Council operates a small spring fed water supply and treatmentsystem that serves 15 households. There is some capacity to addproperties to this system however there is no current provision in theLong Term Plan to do so. The five properties at the corner of HolmesBay Road have requested connection to this system to provide asecure treated supply, but this is unlikely to happen until funding isavailable.

Stormwater Management: There is little in the way of a developed stormwater system.Properties are dispersed widely. Some drainage to roadsidechannels.

Inundation from sea levelrise and tsunami risk:

Pigeon Bay is an elongated north to north-east facing, rock walledinlet. At the head of the inlet is a wide intertidal mudflat and a lowlying backshore with an elevation of around 1m above high tide level.The extensive mudflats indicate a sheltered environment which is tobe expected given the elongated nature of the bay. Storm surgeinundation is not a major threat to the settlement however thisthreat may increase as sea level rise in the future. Pigeon Baycurrently experiences some coastal erosion around the head of thebay which will only be exacerbated with higher sea levels. Tsunamientering the bay may potentially inundate low lying areas.

Land instability risks: More detailed land instability assessments would be required shouldany further development of the area be contemplated.

Settlement Character: Small number of dwellings in a semi-formal layout with a ruralcharacter. Older buildings (some heritage) which have retained awooden, white colonial look to the materials. The settlement is on

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the flat topography of the valley floor with the sides of the valleyrising behind. Refer to 14/1386937 for further details.

Areas of significantenvironmental value:

Ecological/biodiversity – No sites of ecological significance have beenidentified in the Pigeon Bay residential zones. See planning maps 65and R2.Landscape- The Operative BPDP includes the following areas of highcoastal natural character and under the draft Natural and CulturalHeritage Chapter 9 of the Replacement District Plan.

Areas of significance totangata whenua:

Pigeon Bay was settled by members of Ngāi Tūāhuriri living in threesettlements there who later established good relations with theEuropean settlers. For more information see:http://my.christchurchcitylibraries.com/ti-kouka-whenua/wakaroa/

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Attachment A: Settlement Map of Pigeon Bay

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Attachment B: Vacant Land Overview of Pigeon Bay

Vacant Land Type descriptions:1) Vacant Lot - Vacant land under 4000m2. In 2005 this was split into 'Redeveloped lot' and 'Subdivision lot.'2) Redeveloped Lot - Existing vacant land parcels under 4000m2 that have had a dwelling demolished and the land has not been rebuilt on (not previously in theVacant Land Register).3) Subdivided Lot - Vacant parcels under 4000m2 that have not previously been built on (resulted from the subdivision of a previous piece of Vacant Land).4) Undeveloped - Vacant parcels over 4000m2 with no dwelling or over one hectare with a dwelling.5) Potential for development - Vacant parcels with a dwelling that are over 4000m2 and less than one hectare.6) Deferred Zoning - Vacant parcels that cannot be developed until something has occurred eg Infrastructure or Development Plan.7) Under Appeal - Vacant parcels that are currently zoned residential but are under appeal/reference to the Environment Court.

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Phase 2 – Residential Chapter 14 – Banks Peninsula Residential Settlement Analysis - Capacity,Constraints and Opportunities for KuKupa

Key InformationSettlement area: Kukupa

Attachment A – KuKupa PlanHousehold demand andsupply:

No assessment undertaken.

Summary of growthpotential and future needfor change:

The landscape character assessment (14/1386937) recommendsthat the current settlement size be retained to maintain thecompact form of the settlement and maintain the dominance ofopen space and quaint rural character. Significant vegetationclearance or dense development would erode the isolated relaxedcharacter of this settlement. No public infrastructure available norplanned to support any major development.

Transportation: All roads are Local Roads. Limited level of service on PettigrewsRoad and intersections. Narrow.

Wastewater Management: No Council wastewater services are provided in Kukupa.Water SupplyManagement:

No Council water supply services are provided in Kukupa.

Stormwater Management: There is little formal drainage infrastructure. Mostly drainage to thestream via overland flow or private drainage pipes.

Land instability risks: More detailed land instability assessments would be requiredshould any further development of the area be contemplated.

Settlement Character: Isolated and well-hidden from the main road, dwellings have a ruralcharacter, nestled within gardens on hill slopes. There is extensivevegetation surrounding properties and this along with the distancefrom the bay limits sea views. Evidence of quirky decorations withprimarily seasonal residents.Refer to 14/1386937 for further details.

Areas of significantenvironmental value:

Ecological/biodiversity – A site of ecological significance has beenidentified in the gully above KuKupa. This is a large area ofsignificant vegetation that has a small overlap into someundeveloped land in the south of the residential zone. See planningmaps 67 and R4.Landscape- The Operative BPDP includes the following areas of highcoastal natural character.

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Attachment A: Settlement Map of KuKupa

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Phase 2 – Residential Chapter 14 – Banks Peninsula Residential Settlement Analysis - Capacity,Constraints and Opportunities for Little Akaloa

Key InformationSettlement area: Little Akaloa

Attachment A – Little Akaloa PlanHousehold demand andsupply:

There are currently 13 existing vacant lots in Little Akaloa with atotal area of 3 hectares. It has been estimated that this land has thepotential to provide an additional 21 residential units (based onapprox 1,500m2 sections).Refer to Attachment B – Vacant land assessment and preliminaryassessment of land development potential.

Summary of growthpotential and future needfor change:

The landscape character assessment (TRIM14/1386937) notes thatsome new dwellings are out of character with the small, bach-likeexisting dwellings. It is recommended that new developmentsinclude vegetation and contain size restrictions to retain character.Further development could occur along the valley floor howeverthis could be vulnerable to sea level rise.

Transportation: All roads are Local Roads. Consider formalising / utilising public landto enable improved pedestrian linkages to the waterfront. LukesRoad narrow. Consider intersection with Chorlton Road. ChorltonRoad narrow, winding, limited level of service, some maintenanceissues.

Wastewater Management: No Council wastewater services are provide in Little Akaloa.

Water SupplyManagement:

No Council water supply services are provided in Little Akaloa.

Stormwater Management: Properties on the river flats beside Little Akaloa Road (#577 to #589Little Akaloa Road) are prone to flooding due to breakouts fromLittle Akaloa Stream. Undersized pipes used to form vehiclecrossings in front of these properties also restricts the drainageaway from this area. Little Akaloa Stream is silting up and theseoverflows may be more frequent in future unless some streammaintenance is done. The abutments to the private bridge onFactory Road PROW have been scoured behind in the recentstorms. There is a culvert under Lukes Road at #50 which has beenpartially blocked for several years. During this time the waterwaybelow the culvert has been restricted with sections of undersizedpipe and other development meaning that the culvert can no longerbe reinstated without major works to protect the properties andbuildings below. Along the uphill side of Lukes Road there is aconcrete lined channel that needs to be initially cleared and thenregular maintenance to prevent overflows into properties below theroad.

Inundation from sea levelrise and tsunami risk:

Little Akaloa Bay is a north east facing bay with a mixed sand/cobbleforeshore indicating less sand supply than Okains or Le Bons Bays.The beach is generally backed by a steep bank and therefore thesettlement behind is protected from coastal inundation hazardsalthough the bank itself may be susceptible to slow erosion

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processes both contemporarily and in the future as sea levels rise.The beach is generally backed by a steep bank and therefore thesettlement behind is protected from coastal inundation hazards.

Land instability risks: More detailed land instability assessments would be requiredshould any further development of the area be contemplated.

Settlement Character: Primarily old small dwellings including an historic local church andearly homestead enclosed in native vegetation and private gardens.Newer dwellings tend to be larger and in less vegetated areas, assuch newer dwellings and those on the valley floor are much morevisible.Refer to 14/1386937 for further details.

Areas of significantenvironmental value:

Ecological/biodiversity – No sites of ecological significance (SES)have been identified in the Little Akaloa residential zones. Howeverthere is an SES on the slopes on the west side of the bay; this isclose to the residential zone and overlaps with the coastal naturalcharacter area. See planning maps 66 & R2.Landscape- The Operative BPDP includes the following areas of highcoastal natural character.

Areas of significance totangata whenua:

Nothing in the residential zone, but on the north facing slopes ofLong Lookout Point, Little Akaloa (Hakaroa) sits the coastal pā ofPanau. Sited on a terrace edge overlooking the sea this longoccupied pā is an excellent example of coastal pā established totake advantage of marine and forest resources and extensivegardens. For further information see:http://my.christchurchcitylibraries.com/ti-kouka-whenua/panau-pa-hakaroa/

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Attachment A: Settlement Map of Little Akaloa

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Attachment B: Vacant Land Overview of Little Akaloa

Vacant Land Type descriptions:1) Vacant Lot - Vacant land under 4000m2. In 2005 this was split into 'Redeveloped lot' and 'Subdivision lot.'2) Redeveloped Lot - Existing vacant land parcels under 4000m2 that have had a dwelling demolished and the land has not been rebuilt on (not previously in theVacant Land Register).3) Subdivided Lot - Vacant parcels under 4000m2 that have not previously been built on (resulted from the subdivision of a previous piece of Vacant Land).4) Undeveloped - Vacant parcels over 4000m2 with no dwelling or over one hectare with a dwelling.5) Potential for development - Vacant parcels with a dwelling that are over 4000m2 and less than one hectare.6) Deferred Zoning - Vacant parcels that can not be developed until something has occurred eg Infrastructure or Development Plan.7) Under Appeal - Vacant parcels that are currently zoned residential but are under appeal/reference to the Environment Court.

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Phase 2 – Residential Chapter 14 – Banks Peninsula Residential Settlement Analysis - Capacity,Constraints and Opportunities for Okains Bay

Key InformationSettlement area: Okains Bay

Attachment A – Okains Bay PlanHousehold demand andsupply:

There are currently 10 existing vacant lots in Okains Bay with a totalarea of 5 hectares. It has been estimated that this land has thepotential to provide an additional 31 residential units (based onapprox 1,500m2 sections).Refer to Attachment B – Vacant land assessment and preliminaryassessment of land development potential.

Summary of growthpotential and future needfor change:

The landscape character assessment (14/1386937) notes thatincreasing the number of holiday homes could erode the existingcommunity and affect the sense of residential coherence. Highdensity development will change the open, spacious character of thesettlement. As such, it is recommended to keep development on thesouth-east side of the main road to retain the rural outlook and openfeel and keep density low by retaining reserves or larger section sizesto prevent a built-up look.

Transportation: All roads are Local Roads.Consider upgrade of Back Road as providing an alternative to themain road in the event of being impassable to flooding etc. Somedistance to walk between this part of Okains Bay and theCampground/Beach- pedestrians currently utilise grass roadshoulder.

Wastewater Management: No Council wastewater services are provided in Okains Bay. Thecamp ground which is on land owned by Ngai Tahu is managed by theCouncil and has a new septic tank system. All other properties willbe on private septic tanks.

Water SupplyManagement:

No Council water supply services are provided to Okains Bayproperties. The stream fed water supply system is a private systemthat is run by a water committee. The Water Committee is workingwith the Ministry of Health on how to bring the water supply up tomeeting the NZ Drinking Water Standards.

Stormwater Management: There is a series of open drains running across the lower river flatfrom the toe of the hills on the southeast side to Opara Stream onthe northwest side. These are maintained by the Council due to ahistoric agreement. Large volumes of silt wash down from the hillsabove this area and deposit in the drains and roadside swales duringrain events blocking them and causing overflows and flooding. Theland on the river flat is very low lying and flat making drainage instorm events very difficult. The drains in this area are also affectedby the tide. It is possible that at least some of the river flat area hasdropped in the earthquakes worsening the existing drainage issues.Above the Rowandale Creek road crossing culvert there is a largedebris screen that needs regular maintenance. This requires formingan access to facilitate operations.

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Inundation from sea levelrise and tsunami risk:

Okains Bay is an eastern-facing, gently sloping, fine sand grainedbeach backed by a substantial and well vegetated foredune system. Itis protected somewhat from high energy southerly storm events bythe headlands and the bulk of Banks Peninsula but can receiverefracted southerly storm waves and rarer but often substantial swellwaves from an easterly direction. As the bay has foredunes it is wellprotected from storm surge inundation but may be subject totsunami inundation especially by way of the stream outlet. Sea levelrise effects may be felt but probably not to the same extent as thoseBanks Peninsula bayhead beaches without dunes. May be subject totsunami inundation especially by way of the stream outlet.

Land instability risks: More detailed land instability assessments would be required shouldany further development of the area be contemplated.

Settlement Character: The settlement is removed from the beach front. It has a very opencharacter due to large tracts of land between small groups of housesand flat topography. It’s primarily a permanent population withassociated community facilities (including a school) and a popularcampground nearby. It contains multiple historic buildings.Refer to TRIM14/1386937 for further details.

Areas of significantenvironmental value:

Ecological/biodiversity – No sites of ecological significance have beenidentified in the Okains Bay residential zones. See planning maps 68and R2.Landscape- The Operative BPDP includes the following areas of highcoastal natural character

Areas of significance totangata whenua:

Nothing in the residential zone but situated in a quiet bay/headlandand on an offshore island two kilometres southeast of Okains Bay isthe Pā Bay/Pā Island settlement area. This combined site containstwo Pā, two villages and a garden and is thought to have beenoccupied over a long period with the main occupation period beingduring the 1820s. The raiding expeditions of Te Rauparaha in 1830marked the end of occupation of this extensive complex. For furtherinformation see:http://my.christchurchcitylibraries.com/ti-kouka-whenua/kawatea/

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Attachment A: Settlement Map of Okains Bay

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Attachment B: Vacant Land Overview of Okains Bay

Vacant Land Type descriptions:1) Vacant Lot - Vacant land under 4000m2. In 2005 this was split into 'Redeveloped lot' and 'Subdivision lot.'2) Redeveloped Lot - Existing vacant land parcels under 4000m2 that have had a dwelling demolished and the land has not been rebuilt on (not previously in theVacant Land Register).3) Subdivided Lot - Vacant parcels under 4000m2 that have not previously been built on (resulted from the subdivision of a previous piece of Vacant Land).4) Undeveloped - Vacant parcels over 4000m2 with no dwelling or over one hectare with a dwelling.5) Potential for development - Vacant parcels with a dwelling that are over 4000m2 and less than one hectare.6) Deferred Zoning - Vacant parcels that cannot be developed until something has occurred eg Infrastructure or Development Plan.7) Under Appeal - Vacant parcels that are currently zoned residential but are under appeal/reference to the Environment Court.

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Phase 2 – Residential Chapter 14 – Banks Peninsula Residential Settlement Analysis - Capacity,Constraints and Opportunities for Birdlings Flat

Key InformationSettlement area: Birdlings Flat

Attachment A – Birdlings Flat Plan

Household demand andsupply:

There are currently 95 existing vacant lots in Birdlings Flat with a totalarea of 7.5 hectares. It has been estimated that this land has thepotential to provide an additional 95 residential units (based onapprox 700m2 sections).Refer to Attachment B – Vacant land assessment and preliminaryassessment of land development potential

Summary of growthpotential and future needfor change:

The landscape character assessment (14/1386937) notes that theharsh environment tends to slow development pressure. There areimportant indigenous vegetation and protected coastal areas thatlimit growth outside the existing zone. As such, it is recommended toencourage infill development rather than too much outwardexpansion.

Transportation: All roads are Local Roads. Birdlings Flat- Delineation upgradesproposed on Poranui Beach Road. Western end of settlement hasnarrow roads, limited parking and pedestrian opportunities, narrowintersections. Consideration to improving pedestrian facilities. Link toBossu Rd- access via beach and basic causeway over Lake Forsythoutlet a strategic link both recreationally and for local residents. Lookto improve linkages with Rail Trail to Little River, school bus stop andshelter on SH75. NZTA to be consulted in regard to possibleimplications for the intersection of Poranui Beach Road / SH75.

Wastewater Management: No Council wastewater services are provided in Birdlings flat. Allproperties make their own arrangements and this is usually throughseptic tank systems. There is an Memorandum of Understandingsigned by the Council, Ecan and Wairewa Rununga to have a plan inplace for wastewater for the area by 2022.

Water SupplyManagement:

A Council water supply is available to all properties in the settlementarea on the basis of a restricted supply (1000 litres per day at lowpressure to a tank at ground level). There is capacity to serve eachlot currently identified in the settlement area.

Stormwater Management: Ground material is very gravelly and the majority of drainage is bysoakage to ground. Lake Forsyth is drained via a manmade outletthrough the beach nearby. This is opened as necessary to managethe water level in the lake to mitigate flooding in the surroundingarea. This affects access across the beach.

Inundation from sea levelrise and tsunami risk:Land instability risks:

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Settlement Character: The settlement responds to the harsh environment and windexposure by keeping low to the ground. The dwellings are primarilyold and battered by the elements; some are patched and potentiallybuilt out of recycled materials. There are some newer dwellingsgoing in.Refer to TRIM14/1386937 for further details.

Areas of significantenvironmental value:

Ecological/biodiversity – No sites of ecological significance (SES) havebeen identified in the Birdlings Flat residential zones. However LakeForsyth and its immediate banks have been identified as an SES andthe boundary of this area abuts with the residential zone in the east.See planning maps 78 and R4.Landscape- The Operative BPDP includes the following areas of highcoastal natural character

Areas of significance totangata whenua:

Nothing in the residential zone. Nearby was a pā called Waikākahisituated under the foothills to the west of Poranui (Birdlings Flat) atthe Horomaka (Banks Peninsula) end of Kaitōrete spit. Waikākahimeans the place where kākahi (a fresh water shellfish) was found.Waikākahi pā was originally established by the chief Tūtekawa whowas later killed in battles with incoming Ngāi Tahu. Today it is afarmland area of undulating paddocks that stretches from theAkaroa/Christchurch highway down to the shores of Te Waihora. It isa spiritually and culturally significant site for Ngāi Tahu hapū of theHoromaka (Banks Peninsula) area. Waikākahi is famous for being thestarting place of the kai huanga dispute. For further information see:http://my.christchurchcitylibraries.com/ti-kouka-whenua/waikakahi/

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Attachment A: Settlement Map of Birdlings Flat

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Attachment B: Vacant Land Overview of Birdlings Flat

Vacant Land Type descriptions:1) Vacant Lot - Vacant land under 4000m2. In 2005 this was split into 'Redeveloped lot' and 'Subdivision lot.'2) Redeveloped Lot - Existing vacant land parcels under 4000m2 that have had a dwelling demolished and the land has not been rebuilt on (not previously in theVacant Land Register).3) Subdivided Lot - Vacant parcels under 4000m2 that have not previously been built on (resulted from the subdivision of a previous piece of Vacant Land).4) Undeveloped - Vacant parcels over 4000m2 with no dwelling or over one hectare with a dwelling.5) Potential for development - Vacant parcels with a dwelling that are over 4000m2 and less than one hectare.6) Deferred Zoning - Vacant parcels that cannot be developed until something has occurred eg Infrastructure or Development Plan.7) Under Appeal - Vacant parcels that are currently zoned residential but are under appeal/reference to the Environment Court.

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Phase 2 – Residential Chapter 14 – Banks Peninsula Residential Settlement Analysis - Capacity,Constraints and Opportunities for Little River and Cooptown

Key InformationSettlementarea:

Little River and CooptownAttachment A – Little River and Cooptown Plan

Householddemand andsupply:

There are currently 126 existing vacant lots in Little River and Cooptown with atotal area of 31 hectares. It has been estimated that this land has the potential toprovide an additional 151 residential units (based on approx 2,000m2

sections).Refer to Attachment B – Vacant land assessment and preliminaryassessment of land development potential.

Summary ofgrowthpotential andfuture need forchange:

Little River - The landscape character assessment (14/1386937) notes that thereis ample space for growth within the existing settlement zone. Recommendationsare to avoid “cookie cutter/repetitive” development style which could detractfrom unique and more creative character and elements noted throughsettlement; and to apply assessment matters and design guidance referencinglocal character.

Cooptown - The landscape character assessment (14/1386937) notes that anoverly urbanised development approach would compromise the existingcharacter and as such, it is recommended that proposals are reviewed forlandscape and visual effects in this setting. Currently there is ample space forfuture development within the settlement zone.

Transportation: Little River- pedestrian & cycle linkages with the Little River Rail Trail. School issituated in Western Valley Rd- consideration to pedestrian and cycle linkages toand from this site. On street parking provision may become an issue outside theSchool. Council Hill Road narrow / limited level of service. Cooptown- side roadsnarrow carriageway and limited level of service. Consider pedestrian linksbetween Cooptown and Little River. Main Rd, SH75, is a Major Arterial. NZTA tobe consulted about both areas.

WastewaterManagement:

No Council reticulated wastewater services are provided in Little River orCooptown. The Council does service the storage tank associated with the publictoilet in Little River. All properties use septic tank systems which can beproblematic in low lying areas when flooding occurs. The provision ofwastewater reticulation and treatment is not in the current draft 10 year plan.

Water SupplyManagement:

The Council provides a treated water supply to Little River (restricted supply to onsite storage). Reticulation has now been extended to Cooptown. This extensioncan be livened when the Water Supply Treatment Plant is upgraded. Expectedcompletion of this upgrade is the end of 2015, and this will allow for some growthinto the future and will be able to service a total of 216 properties in Little Riverand Cooptown.

StormwaterManagement:

Refer Mayoral Flood Taskforce Final Report, Part C - Appendix B: Detailed AreaReports. Section B15.http://resources.ccc.govt.nz/files/CityLeisure/projectstoimprovechristchurch/landdrainage/MayoralTaskforcereportPartCAppendB.pdf

Subsequent investigations are underway looking into locating the extent andassessing the condition of the piped drainage along the commercial area of Little

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River. There is a locally organised work party looking at flooding issues in the area.Refer to Issues and Options for Little River: A Scoping Document. Dr SuzanneVallance. TRIM 14/1308971

Land instabilityrisks:

SettlementCharacter:

Little River - Settlement primarily along one side of the main road with hiddenresidential areas behind. Character of the development is creative/semi-rural.Historic rail association and recent association with cycle recreation. An activelocal community with associated facilities such as a school and community centre.Cooptown - Rural Avenue with widely spaced dwellings provides a rural, ratherthan a settlement character; the reserve area reads as a paddock. Currently openspace dominates the zone given the rural character of undeveloped land.Refer to TRIM 14/1386937 for further details.

Areas ofsignificantenvironmentalvalue:

Ecological/biodiversity – No sites of ecological significance have been identified inthe Little River or Cooptown residential zones. See planning maps 69 & R4.Landscape- The Operative BPDP includes the following areas of high coastalnatural character as shown in the Landscape Values Map in Attachment F (thelight blue areas).

Areas ofsignificance totangatawhenua:

Nothing in the residential zone. There is the Wairewa Marae situated in theŌkana valley on the eastern side of Te Roto o Wairewa just past Little River on theChristchurch — Akaroa highway. It is home to the hapū of Ngāti Irakehu and NgātiMakō. Wairewa is one of the five Ngāi Tahu Papatipu Rūnanga situated onHoromaka (Banks Peninsula). For further information see:http://my.christchurchcitylibraries.com/ti-kouka-whenua/wairewa-marae/

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Attachment A: Settlement Map of Little River and Cooptown

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Attachment B: Vacant Land Overview of Little River and Cooptown

Vacant Land Type descriptions:1) Vacant Lot - Vacant land under 4000m2. In 2005 this was split into 'Redeveloped lot' and 'Subdivision lot.'2) Redeveloped Lot - Existing vacant land parcels under 4000m2 that have had a dwelling demolished and the land has not been rebuilt on (not previously in theVacant Land Register).3) Subdivided Lot - Vacant parcels under 4000m2 that have not previously been built on (resulted from the subdivision of a previous piece of Vacant Land).4) Undeveloped - Vacant parcels over 4000m2 with no dwelling or over one hectare with a dwelling.5) Potential for development - Vacant parcels with a dwelling that are over 4000m2 and less than one hectare.6) Deferred Zoning - Vacant parcels that can not be developed until something has occurred eg Infrastructure or Development Plan.7) Under Appeal - Vacant parcels that are currently zoned residential but are under appeal/reference to the Environment Court.

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Phase 2 – Residential Chapter 14 – Banks Peninsula Residential Settlement Analysis - Capacity,Constraints and Opportunities for Wainui

Key InformationSettlement area: Wainui

Attachment A – Wainui Settlement Area PlanFunction of settlement and description of community, communityservices and facilities, Retail activities, key features.

Household demand andsupply:

Refer to Attachment B – Vacant land assessment and preliminaryassessment of land development potential.Eight vacant parcels as a result of historical subdivisions, with 4 ofthese being in the Residential Zone, while the remaining 4 are locatedin the Small Settlement Zone.Two large undeveloped vacant parcels (approximately 8 hectares inarea) in the Residential Zone are likely to yield around 70 additionalallotments based on the controlled activity standard for subdivisionof a 400m2 minimum net area under the operative Banks PeninsulaSmall Settlement Zone. Average lot size is likely to be larger than theminimum to accommodate topography, the drainage features on thesite and the probable market demand for lots larger than 400m2.

Summary of growthpotential and future needfor change:

The landscape character assessment (14/1386937) notes that urbansprawl around the waterfront would change the character of thesettlement and extensive developments on the higher slopes couldbecome over-bearing to the lower settlement. It is recommendedthat the clustering pattern around the waterfront is retained by newdevelopment spreading backwards from existing clusters rather thansideways (where land suitability allows). Building sizes should also belimited to a maximum of a 140m2 footprint and 2 storeys in height toretain the small bach feel of the existing settlement.

High potential for infill and high potential for expansion. Opportunityto connect existing pockets of urban zoned land. In the very longterm a section of land along Wainui Main Road (partly zoned SmallSettlement) will be significantly impacted by sea level rise. The urbanzoned area may therefore need to be reconsidered in the future toprovide for replacement urban land to that which is at highinundation risk.

Transportation: Main road is a Collector until Bossu/Jubilee intersection.

The main access to the French Farm / Tikao Bay / Wainui area is viaWainui Main Road from SH75 at Barrys Bay. Wainui Main Road is arelatively low volume, narrow, winding, collector road. This road issubject to slips and drop-outs. Popular with tourists. Potentialimprovements could include delineation signage and markings,carriageway resurfacing, some sections of carriageway widening.

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Challenges to existing and new developments may include limitedsightlines at intersections and private properties- vegetation,alignment and topography. Alternative access is via a number optionsinvolving steep narrow sealed or unsealed roads- Jubilee, Bossu,Kinloch, Reynolds Valley, Okuti Valley- coming out at Little River.These roads have a limited level of service, carry low volumes, andcurrently would pose significant challenges and costs to upgrade. Inweather events affecting Wainui Main Road, or if conditions poor,these alternative access roads may not always be open and availableto regular traffic. Some tourist traffic. Four Wheel Drive of benefit inplaces. Potential improvements as per Wainui Main Road but withsealing roads as an addition. Additional information could beobtained regarding road conditions, natural hazard prone areasaffecting transport, and the current demands and deficiencies from amaintenance perspective including culverts.

Wastewater Management: Only Seaview Lane properties (37) serviced. All other existingproperties on septic tanks/storage tanks/long drops. Requiredimprovements to service existing zoned land (including fulldevelopment of the zoned area – refer to Household demand andsupply section above). Potential improvements required to supportfuture extension of the zone and/or infill.

New wastewater treatment system for Wainui. Refer to AttachmentD for illustration of the scheme. Stage One of the Wainui WastewaterScheme has diverted the treated wastewater from the Seaview Lanewastewater treatment plant that discharged into the harbour onto aland irrigation area above Warnerville Road. This work wascompleted in May 2013. Stage 2 involves providing the Wainui areawith a reticulated wastewater system to the new treatment plant siteoff Warnerville Road. The design is for a low pressure sewer systemusing small pressure grinder pumps to pump wastewater from eachproperty to a new treatment plant located near the top ofWarnerville Road. Discharge from this new plant will also be irrigatedon the forestry block as for Stage One. The commencement of StageTwo is dependant on funding decisions made under Council's LongTerm Plan and Capital Works Programme.

A small number of properties that are not in the “small settlementszone” have been offered a wastewater connection option to the newscheme (Stage Two) when it is built . The offer is made to thoseproperties with existing legal dwellings, where the pipeline passes theproperty frontage and the dwelling is within 100m of the frontage.This was passed by Council in March 2014.

Water SupplyManagement:

Current capacity within reticulated scheme is a consented well takefor 3.5L/sec and daily total of 302m³. This is estimated to enablesupply to 250 properties (on a restricted basis – 1m³/day as is usualfor Banks Peninsula) plus 50m³ /day to the YMCA camp. There is anexisting 90m³ of storage in Wainui Valley Road, and a new set oftanks in Warnerville Road also with capacity of 90m³. At peak

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demand this volume of storage is marginal, however the 2000L onsite tanks required at each property with the restricted supply statuswill ensure additional storage or water sources will not need to bedeveloped for many years as there is effectively 3 days storage tocover outages of the well supply.

Stormwater Management: Stormwater system is generally primitive and not well co-ordinated.It consists of soakage to ground from some properties which do notwork very well. There is a some scouring of the roadside drains.

There are also pipes to surface waterways and including roadsidedrains leading to pipes under the Wainui main Rd and on to thebeach. Some pipes under the road have been recently re-laid.Further development would require increases to the capacity of thestormwater system with attention being paid to elimination ofroadside scouring.

Inundation from sea levelrise and tsunami risk:

Approximately 100m north of Wainui Valley Road (map ref N36023102) which was the location of a former stream mouth thatappears to have been blocked off between 1941 and 1975 andrelocated about 70m further north to remove an ox-bow channelthrough the housing area. As a result the shoreline accreted in theorder of 20m to cover the former mouth position. Predictedshoreline retreat rates and distances for sea level rise at Wainuisouth end (3.5m in 50yrs), middle (8.5m in 50yrs) and north end(6.0m in 50yrs). Additional details available. Storm wave heights andrun-up elevations (water level at 1.7m about msl) south end (seawall2-3.5m, road 2-3.5m) and north end (seawall 3.3m, road 2-3m).Additional details available.

Coastal erosion with sea-level rise: North of Wainui Valley Road likelyto erode, maximum amount less than 10m. Wainui Main Road likelyto be affected within 50 year time frame. No other land likely to beaffected. Set backs for road relocation advisable over next 50 years.Concrete seawall at end of Wainui Valley Road in very poor conditionand will require replacement or major maintenance. For 400msection of coast south of boat ramp and rock groyne, erosion rate of5 metres predicted which will affect sustainability of Wainui MainRoad over next 50m years. Limited ability to reposition road,therefore coastal protection works required.Likely tsunami inundation limited to low lying area of former streamchannel between Wainui Valley Road and Cemetery Road, area alsosubject to storm surge inundation. The area below the 2m contour is1.33 hectares and are between 2 and 4m contour is about 4.3hectares. Area below 2m contour is occupied by dwellings, arebetween 2 and 4m contour predominantly unoccupied as at 2008.

Land instability risks: It is understood that there are large loess/ bedrock landslidesin/around the Wainui settlement area. Exact location andcharacteristics unknown.Active gully erosion also likely given short steep catchments.

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Settlement Character: There is a rhythm of settlement along the waterfront intersected byreserves and open space; dwellings are small with bach character.There is an open character with views out to the harbour and areas ofhousing are well vegetated. The atmosphere is relaxed, informal andcheerful eg. street and bach names of “Joy Street” and “Sanity pad”.Primarily seasonal population. Refer to TRIM14/1386937 for furtherdetails.

Areas of significantenvironmental value:

Ecological/biodiversity – No sites of ecological significance have beenidentified in the Wainui residential zones. See planning maps 75 andR4.Landscape- The Operative BPDP includes the following areas of highcoastal natural character. These are being reviewed at present withsome areas where development has occurred likely to be removed(see Hannah for detailed map). There are existing objectives, policiesand rules relating to these areas in the operative BPDP. These arecurrently being reviewed as part of the coastal chapter.

Areas of significance totangata whenua:

Nothing in the residential zone but rising above the bay is theimposing sight of Mt Bossu. In Ngāi Tahu legend, this maunga(mountain) is the resting place of the kō (digging stick) of thelegendary explorer Rakaihautū. It was Rakaihautū who explored TeWaipounamu (South Island), and with his magic digging stick Tuhirakidug out the lakes found there. In Ngāi Tahu times, this bay wasclaimed by the fighting chief Te Ruahikihiki when he landed at Wainuiand dug for fern roots there. Te Maiharanui (Tamaiharanui) theparamount chief of Akaroa Ngāi Tahu from his baseat Takapūneke (Red House Bay) on the other side of the harbourwould use Wainui as a base to gather flax which he sold toEuropeans. The flax found in New Zealand was of good quality andsought after for the making of ropes.Another special site closer to the residential zone is Ōtūtereinga (ŌTū Te Reinga) which is the name of the point at the northern endof Wainui and means “the flitting place from which spirits pass to theunderworld”.Just above the point is the ancient burial place of chief Tāngataharawho led the defenders of the pā at Ōnawe against the attack of TeRauparaha in 1832. For further information see:http://my.christchurchcitylibraries.com/ti-kouka-whenua/wainui/

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Attachment A: Settlement Map of Wainui

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Attachment B: Vacant Land Overview of Wainui

Vacant Land Type descriptions:1) Vacant Lot - Vacant land under 4000m2. In 2005 this was split into 'Redeveloped lot' and 'Subdivision lot.'2) Redeveloped Lot - Existing vacant land parcels under 4000m2 that have had a dwelling demolished and the land has not been rebuilt on (not previously in theVacant Land Register).3) Subdivided Lot - Vacant parcels under 4000m2 that have not previously been built on (resulted from the subdivision of a previous piece of Vacant Land).4) Undeveloped - Vacant parcels over 4000m2 with no dwelling or over one hectare with a dwelling.5) Potential for development - Vacant parcels with a dwelling that are over 4000m2 and less than one hectare.6) Deferred Zoning - Vacant parcels that can not be developed until something has occurred eg Infrastructure or Development Plan.7) Under Appeal - Vacant parcels that are currently zoned residential but are under appeal/reference to the Environment Court.

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Attachment C: Transport

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Attachment D: Wastewater Scheme

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Attachment E: Natural Hazards

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Phase 2 – Residential Chapter 14 – Banks Peninsula Residential Settlement Analysis - Capacity,Constraints and Opportunities for Tikao Bay and French Farm

Key InformationSettlement area: Tikao Bay and French Farm

Attachment A – Tikao Bay and French Farm PlanHousehold demand andsupply:

Refer to Attachment B – Vacant land assessment and preliminaryassessment of land development potential

Summary of growthpotential and future needfor change:

Tikao Bay - The landscape character assessment (14/1386937)notes that large dwellings, removal of vegetation or large volumesof new dwellings could impact on the character and intimate natureof the setting. As such, it is recommended that new development islimited and expands up the valley on the farmland rather thansideways into the native vegetation. New developments should bewell vegetated and buildings should be limited to a 140m2 footprintand maximum height of 2 storeys to retain the small bach feel.French Farm - The landscape character assessment (14/1386937)notes that sprawl around the waterfront would remove the smallcluster pattern of development which is important to retain thepredominantly open space/rural character of the wider French Farmarea. As such, it is recommended that the cluster pattern isretained with some opportunity for small scale expansion in thewesterly direction from the existing settlements. It isrecommended that no further expansion occurs in the south facingcluster as vegetation removal would have adverse effects on thelandscape setting.

Transportation: Main road is a Collector. Both popular locations for tourists. TikaoBay Rd narrow and very streep in places. No significant trafficoperations issues.

Wastewater Management: No Services provided by CCC to French Farm. All existing propertiesare on their own septic tank system.Full reticulation and treatment of wastewater is provided at TikaoBay for the 36 existing properties. The discharge of the treatedwastewater is to land on a pine forest area (0.75 hectares) aboveTikao Bay that is owned by the Council. There is some additionalwastewater capacity available for wastewater treatment anddisposal.

Water SupplyManagement:

No Council provided water supply services at French Farm or TikaoBay.There is a private supply operating at Tikao Bay for the residentialproperties. The source is from a spring on a neighbouring farmer'sland. It is expected that the water supply is unlikely to meet NZDrinking Water Standards. It is understood that there is no formalagreement for the water supply from the farmers spring.

Stormwater Management: Tikao Bay is a very steep catchment with natural waterwayschannelling water down to the bay. Properties drain into thewaterway through private drainage and overland flows.

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Inundation from sea levelrise:

Tikao Bay – On the west side of the middle section of the harbour,Tikao Bay has narrow mudflats with intermediate foreshore andnearshore slopes that reflect its exposure to higher energy waveconditions than those bays further up the harbour. The Tikao Baysettlement is only at low risk from contemporary coastal hazardssuch as storm surge and tsunami but coastal inundation risks willincrease with future sea level rise.French Farm Bay – Occupies the sheltered west side of the harbourwith more extensive mudflats than those occurring at Tikao Bay.French Farm Bay’s exposure to contemporary coastal inundationand erosion hazards is minimal. However coastal erosion and storminundation risk will increase with future sea level rise and will likelyundermine and overtop existing coastal protection structures.

Tsunami risk: Tikao Bay – The Tikao Bay settlement is only at low risk fromcontemporary coastal hazards such as tsunami.French Farm Bay – The lower areas of French Farm Bay are at risk ofinundation from a large tsunami event entering the harbour.Refer to Attachment E for maps illustrating sea level rise, tsunami,coastal protection works and shoreline changes.

Land instability risks: More detailed geotechnical assessment is required should furtherdevelopment be contemplated.

Settlement Character: Tikao Bay – Hidden from the main road, it has a semi-private feel.The sounds are dominated by birdsong and the ocean giving arelaxed atmosphere. Dwellings have a bach-like character and arenestled into the dense vegetation and topography of the bay whichis a key aspect to the character of the settlement.French Farm – The south facing area is hidden by dense vegetationand its location above the road. Further along, small clusters ofsemi-formal development set within the rural landscape are visible;these are spaced widely along the main road and water front.Dwellings are set in urban style gardens on hill slopes with views ofthe harbour. Primarily a seasonal boating community.Refer to TRIM 14/1386937 for further details.

Areas of significantenvironmental value:

Ecological/biodiversity – No sites of ecological significance havebeen identified in the Tikao Bay or French Farm residential zones.See planning maps 74 and R4.Landscape- The Operative BPDP includes the following areas of highcoastal natural character as shown in the Landscape Values Map inAttachment F (the light blue areas).

Areas of significance totangata whenua:

Tikao Bay – Nothing in the settlement area. The northern pointof Tikao Bay is named Te Whatamako which means the storehouseof mako.Dried mako shark was a popular staple for those hapū living in theharbours of Whakaraupō (Lyttelton) and Akaroa, being plentiful andeasily caught. When the time was right, large numbers of people inwaka and in the water would herd the mako into the shallows of thetidal mudflats where they could be caught. For further informationsee: http://my.christchurchcitylibraries.com/ti-kouka-whenua/whatamako/

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Attachment A: Settlement Map of Tikao Bay and French Farm

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Attachment B: Vacant Land Overview of Tikao Bay and French Farm

Vacant Land Type descriptions:1) Vacant Lot - Vacant land under 4000m2. In 2005 this was split into 'Redeveloped lot' and 'Subdivision lot.'2) Redeveloped Lot - Existing vacant land parcels under 4000m2 that have had a dwelling demolished and the land has not been rebuilt on (not previously in theVacant Land Register).3) Subdivided Lot - Vacant parcels under 4000m2 that have not previously been built on (resulted from the subdivision of a previous piece of Vacant Land).4) Undeveloped - Vacant parcels over 4000m2 with no dwelling or over one hectare with a dwelling.5) Potential for development - Vacant parcels with a dwelling that are over 4000m2 and less than one hectare.6) Deferred Zoning - Vacant parcels that cannot be developed until something has occurred eg Infrastructure or Development Plan.7) Under Appeal - Vacant parcels that are currently zoned residential but are under appeal/reference to the Environment Court.

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Phase 2 – Residential Chapter 14 – Banks Peninsula Residential Settlement Analysis - Capacity,Constraints and Opportunities for Barrys Bay and Duvauchelle

Key InformationSettlement area: Barrys Bay and Duvauchelle

Attachment A – Barrys Bay and Duvauchelle Plan

Household demand andsupply:

Refer to Attachment B – Vacant land assessment and preliminaryassessment of land development potential.

Summary of growthpotential and future needfor change:

Barrys Bay Main Road - The landscape character assessment(14/1386937) notes that the solid wall fronting the main road(presumable to buffer the effects of the main road) could become aproblem for rural character if it is repeated as part of urbanexpansion. It is recommended that there is potential for some smallscale expansion along the road towards the cheese factory subject totraffic and visibility etc.Barrys Bay Valley – The landscape character assessment(14/1386937) notes that there is plenty of room to expand due to thesurrounding rural landscape; however pressure for expansiontowards the waterfront could be detrimental to the relaxed ruralsetting and small scale, quaint character. As such, it is recommendedthat only small pockets of expansion (similar in size to the existingsettlements) should be allowed rather than continuous urban spread.Duvauchelle – Some limited new development may be appropriatebut requires further detailed assessments.

Transportation: Main road, Christchurch Akaroa Rd (SH75), is a State Highway andMajor Arterial. NZTA as a key stakeholder due to relationship ofdevelopment with SH75. Condition of pedestrian access alongsideSH75 (Duvauchelle) has been raised previously- narrow gritted pathsubject to slips. This provides a link to the school and café/bar.

Wastewater Management: No Council wastewater services are provided in Barrys Bay. Fullwastewater reticulation and treatment is provided in Duvauchellewith the discharge of the treated wastewater into Akaroa Harbour viaa 1600m long outfall. Laboratory scale trials have commenced forpossible land application of some of the wastewater. There is somespare capacity for growth in wastewater flows to the DuvauchelleTreatment Plant.

Water SupplyManagement:

No Council water supply services are provided in Barrys Bay.A fully treated water supply is available to all properties inDuvauchelle including the new Ngaio Point area and also includesapproximately 36 properties in Robinsons Bay on the south side ofNgaio Point. A portion of the properties (particularly the olderproperties) are on a full pressure supply, while the remainingproperties (mainly the newer properties) are on restricted supplies.A restricted supply provides 1000 litres per day to a tank at groundlevel. The property owner provides a pressure pump for the household. Future growth in the Duvauchelle settlement may depend onmore stringent control of water use. The stream fed sources of water

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supply for communities around Akaroa Harbour are limited in supply,particularly in dry summers at times of high demand. The anomalythat some properties on the Duvauchelle supply are provided waterat high pressure needs to be addressed.

Stormwater Management: Barrys Bay: has informal private drainage.Duvauchelles:The Show Grounds and area around the lower Pawsons Valley areprone to flooding in heavy rain events. The channel of PawsonsValley Stream has been scoured in recent storm events. The channelof Pipers Stream has also been scoured leading to encroachment intothe Camp Ground.The silty soils in this area are easily eroded. Property drainage iseither via roadside channels or natural waterways.

Inundation from sea levelrise and tsunami risk:

Barrys Bay – Barrys Bay has the gentlest sloping intertidal mudflats ofthe entire Akaroa Harbour reflecting the very low energy waveenvironment experienced in this embayment. Contemporary stormsurge and storm wave run-up risk is not substantial due to thesheltered nature of the embayment and the elevation of the coastalhinterland. However this risk will increase with the predicted rise infuture sea levels.

Duvauchelle – Duvauchelle is a south-facing embayment withmudflats which are the steepest of the harbour bays. This reflects thehigher level of wave exposure at Duvauchelle from waves movingsouth to north up the harbour axis. The coastline at Duvauchellecurrently already experiences overtopping events during coastalstorms. These instances will increase as sea levels continue to rise.There is some risk to the lower lying land around Duvauchelle frominundation from a large tsunami event entering the harbour.

Land instability risks: More detailed geotechnical assessment is required should furtherdevelopment be considered.

Settlement Character: Barrys Bay Main Road – Small urban enclave of 3 houses, urbanfrontage, busy main road and seasonal population. Visually obscuredfrom views of traffic until in close proximity due to vegetation andthe curving of the road. Enclosed within vegetation; pine forestopposite the development and private gardens and native vegetationbehind.

Barrys Bay Valley – Visually open to the narrow farm road that it ison, but not visible to, the main road. Surrounded by farmland withan open outlook; has a tranquil “cottage feel”.

Duvauchelle -

Refer to 14/1386937 for further details.Areas of significantenvironmental value:

Ecological/biodiversity – No sites of ecological significance have beenidentified in the Barrys Bay or Duvauchelle residential zones. Seeplanning maps 70, 73 and R4.

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Landscape- The Operative BPDP includes the following areas of highcoastal natural character

Areas of significance totangata whenua:

Barrys Bay – Several creeks run into the tidal mudflats there – TeWairori is the largest and Kaituna a smaller one. Kaituna’s name,meaning kai (food) and tuna (eel), refers to the catching of eels inthat locality. The mudflats were also known as a good source of pātiki(flounder), making this area a regular fishing spot for people fromWairewa just over the hill. For further information see:http://my.christchurchcitylibraries.com/ti-kouka-whenua/taraouta/

Duvauchelle – Oinako is the site of an ancient pā which was later thesite of the Duvauchelle Hotel until it was demolished in 2012 due toearthquake damage. This was located in the residential zone ofDuvauchelle.Te Wharau is the name of a creek running into the sea where on flatland nearby, a taua (war party) of Ngāti Awa warriors were campedduring the Ōnawe battles led by Te Rauparaha. For furtherinformation see:http://my.christchurchcitylibraries.com/ti-kouka-whenua/kaitouna/

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Attachment A: Settlement Map of Barrys Bay and Duvauchelle

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Attachment B: Vacant Land Overview of Barrys Bay and Duvauchelle

Vacant Land Type descriptions:1) Vacant Lot - Vacant land under 4000m2. In 2005 this was split into 'Redeveloped lot' and 'Subdivision lot.'2) Redeveloped Lot - Existing vacant land parcels under 4000m2 that have had a dwelling demolished and the land has not been rebuilt on (not previously in theVacant Land Register).3) Subdivided Lot - Vacant parcels under 4000m2 that have not previously been built on (resulted from the subdivision of a previous piece of Vacant Land).4) Undeveloped - Vacant parcels over 4000m2 with no dwelling or over one hectare with a dwelling.5) Potential for development - Vacant parcels with a dwelling that are over 4000m2 and less than one hectare.6) Deferred Zoning - Vacant parcels that can not be developed until something has occurred eg Infrastructure or Development Plan.7) Under Appeal - Vacant parcels that are currently zoned residential but are under appeal/reference to the Environment Court.

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Phase 2 – Residential Chapter 14 – Banks Peninsula Residential Settlement Analysis - Capacity,Constraints and Opportunities for Robinsons Bay

Key InformationSettlement area: Robinsons Bay

Attachment A – Robinsons Bay Plan

Household demand andsupply:

Refer to Attachment B – Vacant land assessment and preliminaryassessment of land development potential.

Summary of growthpotential and future needfor change:

The landscape character assessment (14/1386937) notes that asmall settlement on the valley floor could be at risk of sea level riseas well as being highly visible compared to the settlements on thehills. As such, it is recommended that further development on thevalley floor be discouraged while further development could occurto the west in the north facing settlement and in the open space ofthe south facing settlement without expanding the zone. Newdevelopment should be well vegetated to keep in character with theexisting settlement.

Transportation: Main road, Christchurch Akaroa Rd (SH75), is a State Highway andMajor Arterial. Implications for NZTA intersection Monarch / OkainsBay / SH75)- NZTA as a stakeholder.

Wastewater Management: Information to be provided

Water SupplyManagement:

Information to be provided

Stormwater Management: Drainage from the road to the bay is impeded by the build up ofsand and debris on the upper beach. This requires regularmaintenance. Properties in the area are generally drained throughinformal private drainage.

Inundation from sea levelrise:

Robinsons Bay faces west to south west and has wide intertidalmudflats slightly steeper than neighbouring Takamatua Bay. Theelevation of the coastal hinterland at Robinsons Bay is sufficient toprotect the settlement from contemporary coastal storminundation. However future shoreline erosion and inundation ispossible under future sea level rise scenarios. There is some riskfrom a large tsunami entering the harbour but Robinsons Bay isprobably better protected by the nature of its higher elevatedcoastal hinterland.

Land instability risks: Further assessment required.

Settlement Character: Enclosed by topography and dense vegetation, it has a semi-privatefeel. Small buildings on large sections create a rural character withan outlook to the harbour. Primarily seasonal population.Refer to 14/1386937 for further details.

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Areas of significantenvironmental value:

Ecological/biodiversity – No sites of ecological significance havebeen identified in the Robinsons Bay Residential Zones. Seeplanning map R5.Landscape- The Operative BPDP includes the following areas of highcoastal natural character

Areas of significance totangata whenua:

The bay with its mudflats was one of the best bays in the harbourfor catching flounders (pātiki). Once the fish were caught they werethreaded with a bone needle to keep them together fortransporting back to the pā. The bone needle used is called an “au”hence the original name for Robinson’s Bay – Ngā ka kai au. Formore information see:

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Attachment A: Settlement Map of Robinsons Bay

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Phase 2 – Residential Chapter 14 – Banks Peninsula Residential Settlement Analysis - Capacity, Constraints and Opportunities for Takamatua

Key InformationSettlement area: Takamatua

Attachment A – Takamatua Plan

Household demand andsupply:Current household capacityExpected population growthVacant land

There are currently 34 existing vacant lots in Takamatua with a totalarea of 6 hectares. It has been estimated that this land has thepotential to provide an additional 37 residential units (based on approx1,500m2 sections).

Refer to Attachment B – Vacant land assessment and preliminaryassessment of land development potential

Summary of growthpotential and future needfor change.:

Foreshore – The landscape character assessment (14/1386937) notesthat rebuilt baches are changing the character of the settlementthrough modern design and larger dwellings; expansion could increasethe suburban feeling that is only slightly obvious at present. Sea levelrise is also a concern as the settlement slopes downwards from thebeach. As such it is recommended that expansion be kept to aminimum and that which does occur should be on the higher ground tothe north of the settlement (subject to land suitability). Designguidelines should be provided to retain local character with footprintsno larger than 200m2 on the beach front, no larger than 140m2

footprint behind the beach front (keeping with current patterns) andno higher than 2 storeys.

North Facing – The landscape character assessment (14/1386937)notes that removal of vegetation would increase visibility and changethe nature of the settlement. As such, it is recommended that removalof trees be limited and new developments be well vegetated. Newdevelopment could occur on the open areas of ground to the east

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along the coast and to the south further up the hillside if wellvegetated before development occurs.

Valley – The landscape character assessment (14/1386937) notes thattoo much development could remove the surrounding rural contextwhich adds considerably to the character and increasing seasonalpopulation may erode the local community. It is recommended thatdevelopment be limited to the rear of the existing settlement andretain the rural outlook opposite the settlement.

Key InformationTransportation: Main road, Christchurch Akaroa Rd (SH75), is a State Highway and Major

Arterial.

Takamatua Bay tourist destination / boat ramp activity. Narrow windinghillside roads limited service and intersections. Old French Road to theeast provides very limited access (pedestrians, bikes, off road / 4WD drivevehicles if conditions permit) between the eastern end of the settlementand SH75 at Long Bay Rd. NZTA as a stakeholder given the relationship toSH75.

Wastewater Management: All properties in Takamatua have their own on site treatment systems.These will mostly be septic tanks. Some property owners have issues withthe operation of their field drains from the septic tanks due to a lack ofsoil permeability and site space which is typical for the Peninsula.Provision has been made in the proposed design of the new AkaroaWastewater Treatment Plant for the inclusion of a reticulated wastewater system from Takamatua, There is no provision yet in the proposedlong term plan for the reticulating of Takamatua.

Water SupplyManagement:

The Water Supply for Takamatua is being upgrade now and is due forcompletion in March 2015. A stream take from Takamatua Valley is to bepumped to the upgraded plant at L’Aube Hill in Akaroa and the treated

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water pumped back to a new reservoir at the top of Old Coach Road tofeed down to the Takamatua settlement. There will be no constraints onsupplies to Takamatua. All properties in Takamatua are fully back flowprevented and metered.

Stormwater Management: Takamatua Beach areaThis is a very low lying and flat area. Tide affects the ability of drains tooperate in the area. Outlets to the sea require regular maintenance tokeep them open due to build up of sand and debris blocking them.

Takamatua Valley areaDrainage is mostly via private and roadside channels.

Kotare Lane / Kingfisher Lane areaThe older areas are drained either via the road channels or private pipesto the natural waterways.The newer subdivision at the western end is drained through a pipe androad channel system to detention pond that then drain out to the harbourvia the natural streams.Commercial failure of the Kotare Lane subdivision development has leftdrainage works unfinished with sediment traps left in the streams formingwaterfalls leading to erosion of the stream bed below them.Steep road batters which were not effectively stabilised are eroding andadding sediment to the drainage systems and waterways.

Inundation from sea levelrise:

Takamatua Bay faces west and has wide intertidal mudflats which aregentler sloping than Robinsons Bay due to the shelter provided toTakamatua by the Takamatua Hill promontory. The lower elevations ofTakamatua Bay are currently at risk from contemporary storm surgeevents and higher elevated land will become exposed to this risk as sealevels rise particularly around the vicinity of the Takamatua Stream.The area around the Takamatua Stream is vulnerable to inundation shoulda large tsunami event enter the harbour.

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Land instability risks: More detailed geotechnical assessment is required should further landdevelopment is contemplated.

Settlement Character: Foreshore – Suburban grid layout with contrasting, small bach-likearchitecture and rural setting. Low volumes of vegetation, gardenssuburban in nature, open character with flat topography. Seasonalpopulation with easy access to the beach which is quite muddy due toextensive mudflats.

North Facing – In contrast to the foreshore settlement, the layout of thissettlement generally has a rural feel with the exception of large houses insome areas which create a more suburban character. Well hidden due totopography and dense vegetation with expansive views out to theharbour. Primarily seasonal population, this is the newest of the threesettlements.

Valley – Rural in character due to large set backs at the road frontage,farmhouse style buildings and letter box groupings. Outlook is to thesurrounding rural landscape, the settlement is removed from the bay andfrom the main road. There is evidence of local business and in keepingwith this, there is evidence of a much higher proportion of permanentresidents than the other two settlements in Takamatua. This is the oldestof the three settlements.

Refer to 14/1386937 for further details.Areas of significantenvironmental value:

Ecological/biodiversity – No sites of ecological significance have beenidentified in the Okains Bay Residential Zones. See planning maps 76 andR5.Landscape- The Operative BPDP includes the following areas of highcoastal natural character

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Attachment A: Settlement Map of Takamatua

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Attachment B: Vacant Land Overview of Takamatua

Vacant Land Type descriptions:1) Vacant Lot - Vacant land under 4000m2. In 2005 this was split into 'Redeveloped lot' and 'Subdivision lot.'2) Redeveloped Lot - Existing vacant land parcels under 4000m2 that have had a dwelling demolished and the land has not been rebuilt on (not previously in the Vacant Land Register).3) Subdivided Lot - Vacant parcels under 4000m2 that have not previously been built on (resulted from the subdivision of a previous piece of Vacant Land).4) Undeveloped - Vacant parcels over 4000m2 with no dwelling or over one hectare with a dwelling.5) Potential for development - Vacant parcels with a dwelling that are over 4000m2 and less than one hectare.6) Deferred Zoning - Vacant parcels that cannot be developed until something has occurred eg Infrastructure or Development Plan.7) Under Appeal - Vacant parcels that are currently zoned residential but are under appeal/reference to the Environment Court.

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