The town of Yusuhara in Kochi Prefecture, known for its urban development using “Japanese Cedar”, has a new starting point for its community with the “Kino-machi Hall” (Town Hall), the largest scaled “Wooden” town hall in Japan.
Considering the snowing weather conditions, a large atrium is inserted, and an indoor plaza was created to connote facilities necessary by town members in everyday life such as bank, the Agricultural Cooperative Society, and the Chamber of Commerce. This atrium also functions as a space for traditional performances and festivals.
Local Japanese cedar has been used fully to the regulations, which made possible to create a double lattice girder structure with an 18 meter long span.While making possible to visualize how cedar structural parts sustain the structure, this building aims to build an architecture capable of making people reconfirm the excellence of Japanese wooden structures.The indoor plaza and exterior plaza, separated by a large sliding door used for hangars, becomes one only space which is used during spring festivals.

Sustainable Technologies
 Ice thermal storage heat pump system
 LOW-E Double Glass
 Heat insulating blinds and face panels ¬made of local timbers wooden sash
 Automatic lighting control system
 80kwp PV
 Recycled paper insulation
 Automatic measuring system for environment and engergy
 Uses of ground heat

Measurable impacts:
 20% of the required energy of the building is from solar energy.
 Because of the use of the ice thermal storage heat pump, the solar energy system and the automatic regulation light system, it saved the waste of energy at least 42% than ordinary ones.
 The above two led directly to the carbon emissions decrease by 36% in the life cycle.
 The working efficiency has been raised by the environment improvements.
 Mass use of the local wood resulted in the decrease of carbon emissions.
 The efficient Ice thermal storage system make 61% of the heat available at night.
 From three indicators including air pollution, acidification and climate warming, the environment effect reduced by 44% relative to the ordinary architectural.
 Shortly after the completion of the building, the indoor chemical concentration fell rapidly. It is due to the rational use of materials and perfect ventilation.


Project Team:

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