Last Uploaded: April, 2011


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Exterior Interior

Project Outline

This building is a central workplace for Obayashi Corporation that strives for innovating, demonstrating and disseminating technologies. It was built to establish a new R&D base that creates new technologies through integrated research functions and intellectual exchange, applies and demonstrates own technologies, and disseminates them to our clients and the society.
With an aim to create an environmentally-friendly workplace, the building adopted a complex passive system that utilizes its location in a suburban area, an active facilities system with high effectiveness, and a management system for efficient/effective energy use. These three systems allowed for 55 percent reduction in CO2 emissions during operation, the highest level in Japan. Furthermore, the building was rated as S rank of CASBEE and achieved 7.6 scores of BEE because of the overall reduction in environmental burdens.

Basic Information

[CASBEE rank] S  (5 stars)
[CASBEE tool used] CASBEE for New Construction (2008 edition)
[Location] Kiyose City, Tokyo
[Completion date] September, 2010
[Site area] 69,401m2
[Total floor area] 5,535m2
[Structure] Steel construction (seismically isolated structure (Super-Active base isolation system))
[Floors] 3 floors above ground, one-story penthouse
[Owner] Obayashi Corporation (website of Technical Research Institute
[Designer] Obayashi Corporation
[Contractor] Obayashi Corporation

Information for visitors

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  • Adopted as the 2nd Model Project for Promoting CO2 Reduction in Housing and Building in 2009 by the Ministry of Land, Infrastructure, Transport and Tourism
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These cases are described based on assessment results obtained using CASBEE.
CASBEE is a method for rating the environmental performance of buildings using Building Environmental Efficiency (BEE) as an indicator, which is based on the results of separate scores obtained for Q-1~Q-3 (Quality) and LR-1~LR-3 (Load Reduction).