prefabricated housing in japan
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PREFABRICATED HOUSING IN JAPAN
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What does the prefabricated house mean in Japan?
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“..if the 2/3 or more of the construction process is finished in factory..”
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*Chu, X., 2008a. The Path of Industrialized Ho
25% of new residential housing in Japan was completely prefabricated
85% of the new housing used some prefabricated modules
50 million houses in total
1.2 million rebuilt every year
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Why are prefabricated houses so popular?
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○ could be tear down easily
○ a prefabricated house means a disposal goods in Japan
several reasons:
○ a long cultural isolation caused an urgent need to stay modern
○ shinto belief of previous resident’s spirit in the property
○ revisioning of building codes after every significant earthquake
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1955, Midget house
by Daiwa House
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○ in 1960’s the biggest boom of prefabricated housing
○ high economic growth caused increased demand andprefabrication could swiftly react to it
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1972, Nakagin Capsule Tower
by Kisho Kurawa
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1993 20121962 1973
annual production of prefabr
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9 million prefabricated houses between 1963 - 2014
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1.6 mil.
5.9 mil. 1.5 mil.
wooden structure
concrete structure
iron&steel structure
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Daiwa House
Sekisui House
Misawa Homes
Tama House
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無印良品の家
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Window House by Kengo Kum
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Tree House by Kengo Ku
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Vertical House, 2014
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1. save money for hiring an architect
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2. complete furnishings
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3. giving a distinctive look to the
prefabricated architecture
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What is the future of a prefabricated housing?
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○ production is generally declining
○ house manufacturers are more focusing on renovations
○ Japanese government creates plans to support sustainablearchitecture and prolong an average lifespan of building
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REFERENCES
PUBLICATIONS
○ Overview of Prefabricated Housing in Japan; JUDANREN (Japan Federation of Housing Organization); Junichi Goda; 2015
http://www.nahb.org/~/media/Sites/NAHB/Unmapped/No%20ID%20round%202/PDF/Japan-system-built-presentation_2015.ashx?la=en
○ Building mass customised housing through innovation in the production system: lessons from Japan and James Barlow, Ritsuko Ozaki; 2004
http://www.envplan.com/abstract.cgi?id=a3579
ARTICLES
○ 20 shades of beige: lessons from Japanese prefab housing; Mathew Aitchison; 2015
http://theconversation.com/20-shades-of-beige-lessons-from-japanese-prefab-housing-31101
○ Buying a brand new home: cookie cutter or order made?; Philip Brasor and Masako Tsubuku; 2011
http://www.japantimes.co.jp/community/2011/10/04/how-tos/buying-a-brand-new-home-cookie-cutter-or-order-made/#.VcF5y3i4Rch
○ Inside Muji’s Beautiful, Affordable Prefab Houses; Kelsey Campbell-Dollaghan; 2014
http://gizmodo.com/why-buying-entire-pre-designed-houses-could-catch-on-in-1651115237
LINKS
○ http://www.daiwahouse.com/English/innovation/history.html
○ http://www.japantimes.co.jp/news/2013/06/07/business/corporate-business/daiwa-houses-model-community-a-study-in-power-self-suff iciency/#
○ http://www.muji.net/ie/