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University of Auckland School of Architecture and Planning Advanced Design 2 Design Report
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  VOI[D]ENSIFICATION ADVANCED DESIGN 2, SEMESTER 2, 2013FUTURE CHRISTCHURCHTING-HIN(DESMOND) LAM  TABLE OF CONTENTS PROJECT DESCRIPTIONRESEARCHCONCEPTDESIGN PROCESSDESIGN OUTCOME 0204142034 PROJECT DESCRIPTION 0102 Green fields Ever since the February 2011 Christchurch earthquake struck, it has caused numerous amounts of damage to the buildings, people especially those in the city centre.A large portion of existing residents have left the city, with some going overseas and others settling in different parts of New Zealand.Our early research highlights the vast amount of residents migrating towards south west Christchurch.This is because the Christchurch City Council (CCC) has opened a large amount of green field sites for development in the Halswell region.Halswell is a satellite town located south west of Christchurch City.With a history dating back to the 1790s, it has become a very appealing residential town with its own unique industry and identity.It is within close proximity to both the Port Hills (15km) and inner city (8km) with an attractive semi-rural outlook and a village atmosphere.This has made Halswell a very appealing town for young families and working individuals to settle while maintaining easy access to the city centre.Families, students, young couples, and the elderly all seek a new beginning as many of their homes have been lost due to the earthquake.Their hope for a new journey begins in a home with a safe, clean, healthy environment in the fresh green field town of Halswell. Growth Growth projections shows Halswell is facing an extremely high population growth of up to three times its current population over the next 20 years.The result is an increase from 14,680 up to 40,825 residents by the year 2030, making Halswell the fastest growing area in Christchurch.Population growth generates the requirement for more facilities such as housing, shopping, recreation etc.in order to maintain a healthy standard of living for all residents.The extent and timing of household growth is dependent on the green field developments. Given the rapid growth in Halswell, there has been a severe lack of housing.Housing is a crucial element to any city.With housing, comes a home.Home is a refuge.It is an emotional harbour.In fact it is a human right.However, the swift and irrational solution implemented by the CCC has been to open up fringe land to build outer-suburbs, pushing the city even further outward.Subsequently, single detached houses are rapidly erected throughout the area, accompanied by new roads which encourages vehicular traffic.Consequently, is one of Halswell’s greatest assets – the green fields, are slowly diminishing. Housing typology shortage Approximately 87% of the long term housing typologies in Halswell are composed of three bedrooms with two car garages.Single unit detached houses are the most dominant housing typology, followed by a tiny number of townhouses and apartments.Halswell’s demographics show a quarter of its individuals are currently living in a three bedroom home.Although these individuals can afford to do so, it highlights the missing choice of 1-2 bedroom accommodation for individuals and smaller family types who would prefer to live in smaller homes and possibly better suitability.This indicates a lack of housing choice for smaller household compositions because the housing typologies are not adapting to the evident change in demographics.The demographics in Halswell also shows young couples in the future are less likely to have children, resulting in smaller families.However, this has not prevented the continual construction of three bedroom houses which are primarily designed to suit the typical nuclear family. Design This project focuses on densification of the town centre with an intent to design an alternative housing typology that suits smaller sized families.It is essential for the town’s growing amount of residents but currently does not exist.By looking at the voids within the existing built fabric of the site, the project concept begins to emerge deep within the current neighbourhood.There is a strong focus on this site as it’s the closest residential region to the town centre.By densifying this region through housing, it will stimulate and effectively grow the town centre from the inside-out.As a result, the site is located within a current neighbourhood, opposite the existing supermarket and shops.The design process firstly investigates the spaces and voids evident in the chosen site.These voids are manipulated through reflecting their footprints and used to create building footprints and eventually extruded to become houses.The result is 15 new houses, each with a shared entrance where residents can enter and then disperse into their own units within the larger house.The internal program of these houses consist of only 1-2 bedroom units, which is aimed to suit smaller household compositions such as individuals and couples without children.Both 1 and 2 bedroom housing units are self-contained with their own kitchen and bathroom.The current plot sizes of 800m 2  are subdivided for the new housing typology, causing 28/38 houses on the site to have their private garages removed.In order to provide them with car parking spaces, a large semi-underground (-1m) shared car park is designed.This large car park is shared by the existing residents who no longer own a private garage, as well as the new residents in the proposed housing typology.The car park extremely compact but functions very well by providing car protection and optimum circulation to and from the car park.The shared car park is connected to semi-private circulation spaces between 3-5 houses.In doing so, this increases social interaction between both the current and future residents in the region.Above the shared car park is the large public strip.The strip provides circulation space for human traffic only and is taken directly from Nicholls Road and integrated into the site.This is done by “cutting” a strip of the busy road with the same width dimensions (15m) and inserting it into the middle of the site.This allows public access as well as thoroughfare for residents.The proposed buildings are pushed towards the centre and intersect with the public strip, creating an integration between the buildings and the strip.The result is an 8-11.5m wide central circulation space between the new housing.The width varies as people move through the centre because the building footprints are not consistently 8m apart.This effect of moving through a series of choke points which contract and release is created through reflecting the voids.The large public strip is landscaped according to the srcinal concept of mirroring building footprints, creating positive and negative spaces.Green spaces are created through footprint boundaries, whilst voids in the strip are created through footprint overlaps, allowing natural light into the shared car park space.Three large shared communal gardens are also located on the northern side of the new development for vegetation and agricultural purposes for the community.The new housing typology’s forms have been developed from the surrounding neighbourhood characteristics such as roof pitches which are derived from adja-cent roof pitches.Height variations are sensitive to the existing houses which are predominately single storey.Effectively, a series of unique forms are derived from the existing voids.This allows the proposed buildings to exist subtly and comfort-ably within its context.By utilising the concept of residential infill, a new housing typol-ogy with greater function and is achieved.Infill residential development does not re-quire the subdivision of green field land, natural areas, or prime agricultural land.This assists in preserving Halswell’s characteristics of green fields and agriculture zones.The result is a densification of the neighbourhood through an exciting de-sign which encompasses the unique characteristics of Halswell and improves the quality of life for its current and future residents. DESMOND LAM  RESEARCH 04  05 DESMOND LAM / VILLA YAN / ZARA HUANGDESMOND LAM / VILLA YAN / ZARA HUANG HALSWELL Area: 41.8km 2 Population: 14,680 SITE LOCATION Halswell is a town located south west of Christchurch City.With a history dating back to the 1790s, it has become a very appealing residential town with it’s own unique industry and identity.The town is growing rapidly with subdivisions and has an expected population growth from 14,680 up to 40,826 by the year 2030.Halswell has unique characteristics and identity.Local small shops represent the key elements of the town, providing a sense of place and identity for the area.The suburban zones are generously surrounded by green fields and the result is large open spaces maintained for residents and visitors to enjoy. 0 1 2 4km TOWN CHARACTERISTICS 06 SUBURBANGREEN FIELDSLOCAL CHRISTCHURCH CBDAIRPORTHALSWELL8km10km
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