Izumi System Planning Takasaki Office | U.S. Green Building Council
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LEED ID+C: Commercial Interiors v3 - LEED 2009

Izumi System Planning Takasaki Office

2023-4 Koyagimachi
Takasaki, 3700071

LEED Gold 2014

For over 40 years, Izumi System Planning has contributed to the building industry in Japan as engineers by providing high-quality consulting services such as energy calculation and evaluation of buildings’ performance based on the Japanese environmental assessment tool, CASBEE. The Izumi System Planning office is located within a suburban residential area in Takasaki city, around 100km from Tokyo. The building, which was constructed in The space has a large area a 6m-high ceiling and an open-plan layout.

Prior to the renovation, the space earned rank S (Excellent) under CASBEE for Market Promotion and Four-star Grade under BELS (the Japanese Building Energy-efficiency Labeling System). As a next step, taking the renewal into consideration, it was designed and built with the goal of earning Gold certification using the LEED for Commercial Interiors rating system in order to confirm the environmental performance through the international assessment tool.

Improvements included:

  • Replacement of all the old fixtures and fittings installed in the lavatories with water-efficient ones to increase water efficiency
  • Use of FSC-certified wood for the reception space’s decorative wall
  • Selection of Energy Star qualified equipment for PC monitors
  • Selection of native plants for the required amount of vegetation in this building site that need neither potable water nor a specific irrigation system to maintain them
  • The long-term commitment to the tenant lease agreement
  • Installation of LEDs
  • Office space occupying the largest area is designed to use daylight as much as possible through the initial illuminance correction and daylight responsive controls
  • Installation of occupancy sensors - in the spaces regarded as non-regularly occupied ones like lavatories are controlled by occupancy sensors, which contributes to a reduction of the connected lighting load

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Project details
9,222 sf
1 Sep 2014
Data Reporting
Human Experience

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