Westhaven: North-Eastern Causeway Extension
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Brown NZ Ltd P O Box 137 067 Parnell Auckland 1151 WESTHAVEN: NORTH-EASTERN CAUSEWAY EXTENSION Assessment of visual, landscape & urban amenity effects 6 September 2017 CONTENTS: PAGE: 1.0 INTRODUCTION ……………………………………………………………………………….. 2 1.1 PROPOSAL DESCRIPTION …………………………………………………………………. 3 1.2 VISUAL REPRESENTATIONS OF THE PROPOSAL …………………………………….. 8 1.3 LANDSCAPE CONTEXT ……………………………………………………………………… 11 1.4 CHARACTER & VALUES ………………………………….…………………………………. 15 Landscape ……………………………………………………………………………….. 16 Natural Character ……………………………………………………………………….. 17 Amenity …………………………………………………………………………………… 17 2.0 EFFECTS ASSESSMENT ………………………………………………………………….. 19 2.1 RECEIVING ENVIRONMENTS & AUDIENCES ….………………………………………. 19 2.2 VIEWPOINT ANALYSIS …………………………………………………………………….. 28 Representative Viewpoints ……………………………………………………………. 28 Assessment Methodology …………………………………………………………….. 29 Viewpoint Analysis ……………..………………………………………………………. 25 Viewpoint 1. The Auckland Harbour Bridge …………………………………….…… 28 Viewpoint 2. The Northern Causeway ….…………….…………………………… 30 Viewpoint 3. 19 London Street ..…………………………………………………….. 33 2.3 OTHER VIEWPOINTS ………………………………………………………………………. 35 Views From The Waitemata Harbour …………..……………………………………. 35 View From The CBD ……….………………………………………………………….. 36 2.4 KEY FINDINGS ………………………………………………………………………………. 36 2.5 STATUTORY MATTERS ……………………………………………………………………. 38 3.0 CONCLUSIONS …………………………………………………………………….. 40 1 Brown NZ Ltd – Westhaven Marina Extension April 2017 1.0 INTRODUCTION This report addresses the landscape, amenity and natural character effects of the proposed extension to Westhaven Marina’s current breakwater and north-eastern causeway. That extension would extend the current breakwater by some 156m from west to east, in the general direction of Wynyard Wharf and the Auckland CBD. As a result, it would in-fill one of two entry channels that currently provide boating access in and out of the marina. The proposal would also make provision for vehicular and pedestrian access to the end of Westhaven Marina’s northern causeway, and from there, to a reconfigured Pier A – appended to the very end of the existing breakwater and causeway – while two new berthage piers would replace both the present entry channel and the pile moorings immediately east of it. The seaward side of the proposed reclamation would comprise a series of public spaces culminating in an artificial ‘headland’, or lookout, projecting out over the edge of the Waitemata Harbour. Westhaven Marina: showing both entry channels and the area of proposed causeway extension between the current causeway / car park and the marina’s outer breakwater. The proposed development includes provision for 103 new car parks, including mobility spaces, and service bays for each pier on the ‘inside’ of the breakwater, while the public open spaces and terraces would be oriented towards the Waitemata Harbour separated from most of the new car park by bunding, massed native planting and rain gardens. A ‘stand’ of pouwhenua and other cultural elements would frame the approach to the proposed ‘headland’. 2 Brown NZ Ltd – Westhaven Marina Extension April 2017 The proposed development is designed to provide a seamless extension to the northern causeway and its current car parking, with the combination of formal and informal open spaces, including its elevated ‘lookout’, having a strong cultural identity. This part of the extension proposal has been designed in consultation with the Panuku Development Auckland Mana Whenua Collective representing all of Auckland’s 19 tribes. It would provide a logical ‘destination’ for those using the promenade and public walkway recently developed along Westhaven Marina’s southern and western shorelines, as well as ready access to the new berths. This report addresses the landscape, urban amenity and natural character effects of the proposal. In particular, it sets out to: • Analyse the character of the coastal landscape that frames the application site. • Explore the values associated with different parts of that contextual landscape and its key features. • Identify the receiving environments and audiences exposed to the proposal. • Evaluate the effects of the application on different sectors and audiences – employing representative viewpoints and appropriate assessment criteria. • Provide a series of key findings, taking into account both the viewpoint analysis and other relevant considerations. • Analyse the proposal’s implications in relation to relevant landscape, amenity and natural character provisions. • Reach conclusions about the overall acceptability of the proposal. 1.1 PROPOSAL DESCRIPTION The proposed extension of Westhaven’s northern causeway and breakwater is designed to expand the number of piers and berths within the current footprint of the marina. The proposal would add 268 berths to Westhaven Marina’s current inventory of 1479 berths. These would replace 209 existing pile moorings. Other core components of the proposal comprise: • An additional 156m of reclamation extending eastwards from the termination of Westhaven’s current causeway, breakwater and main car park. Most of the car parking and open space across the new reclamation would have Reduced Levels (above sea level) aligned with those found across the current causeway – to accommodate the merger of new and existing car parks – but proposed bunding between the proposed car park and public open spaces would be elevated another 600-700mm above sea level to provide a partial barrier against wave fetch in extreme weather events. The proposed reclamation would be rock armoured and would merge seamlessly with the current breakwater’s sea wall and marina abutments. • Removal of some 103 existing pile moorings from an area immediately east of the current ‘western’ entry channel. This would accommodate the development of 117 new berths, which, in combination with the new pile moorings, would accommodate some 326 vessels with an average berthage length of 13.4m. This expansion would be achieved via the reconfiguration of an existing Pier A and the construction of two new piers. Each pier would have a covered security gate, together with a loading bay and service bay. 3 Brown NZ Ltd – Westhaven Marina Extension April 2017 • Provision of 103 car parks, including at least three mobility spaces. These would be subdivided into a series of bays, demarcated – both physically and visually – by planters containing the ‘Maori Princess’ variety of pohutukawa (a more upright provenance of the species) and massed native underplanting. • Development of a series of public open spaces: commencing with an area of open lawn and terraces / decking near the relocated RNZ Yacht Squadron starters box, then an informal ‘bush trail’ leading to a cluster of 19 pouwhenua – one for each of Auckland’s tribes – before arrival at a timber ‘waka headland’ projected out over the harbour edge. • Development of bunding and bands of massed native planting – employing mountain flax, cabbage trees and standard pohutukawa (Metrosideros excelsa) – to enclose and frame the public spaces focused on the Waitemata Harbour. • Provision of up-lighting for the pouwhenua, then two rows of light columns down the length of the ‘waka headland’. All of the proposed reclamation would be accessible to members of the public, and the design of the proposed public spaces, planting, and, in particular, of the waka headland, has emerged after extensive consultation with the Panuku Development Auckland Mana Whenua Collective. In the process, there has been in-depth review of different options and ideas for providing a public realm that is meaningful to mana whenua, that addresses related iwi concerns about stormwater management and other biophysical issues, and that addresses iwis’ historic associations with the Waitemata Harbour. The current proposals also address interaction with other key features that are visible from the reclamation site, including the harbour entrance, Mt Takarunga / Mt Victoria, Rangitoto, the Auckland CBD and the harbour bridge. In addition, the open spaces proposed are designed to provide a symbolic terminus / destination and civic space as the logical culmination of the promenade already developed around the southern and western sides of Westhaven Marina. Of importance to the Panuku Development Auckland Mana Whenua Collective, the current proposals respond appropriately and positively to the Te Aranga Māori Design Principles, which Panuku Auckland support – including: • Kaitiakitanga: managing and conserving the environment as part of a reciprocal relationship, based on the Māori world view that we as humans are part of the natural world • Manaakitanga: the ethic of holistic hospitality whereby mana whenua have inherited obligations to be the best hosts they can be • Wairuatanga: the immutable spiritual connection between people and their environments • Kotahitanga: unity, cohesion and collaboration • Whanaungatanga: a relationship through shared experiences and working together which provides people with a sense of belonging • Mātauranga: Māori / mana whenua knowledge and understanding 4 Brown NZ Ltd – Westhaven Marina Extension April 2017 The proposed breakwater extension: note the red line demarcates the boundary between existing and proposed car parking Building on this platform, the current proposal is supported by the Panuku Development Auckland Mana Whenua Collective as it would help to affirm important landscape connections and values, eg: Tohu – The Wider Cultural Landscape • Allows visual connection to significant