Eco Construction

 Latest update: April 2022 

Japanese houses are mostly new and largely designed to only last for roughly 30 years. Culturally, the land is seen as more important than the house on it. That burdens the environment through high-energy consumption due to poor insulation as well as large amounts of wasted, often ecologically concerning, building materials. Energy consumption differs greatly from that in Europe and is discussed, as do house buying patterns – many Japanese people buy pre-constructed houses to a particular design. A Japan-specific building-rating system to evaluate the environmental performance of buildings is called CASBEE, and in some regions, there are subsidies based on the CASBEE scheme.

Comprehensive Assessment System for Built Environment Efficiency (CASBEE)


Table of Contents

  • Overview
    • Tokyo Metropolitan Government’s Sustainable Building Policy
    • Solar Parcels
    • Ecocement
    • Smart Housing Initiatives
  • Certifications
    • CASBEE
    • LCCM housing certification
    • BELS
    • BEST Program
  • Expert Reports & Webinars
  • Further Reading
  • Relevant Organisations and Trade Fairs
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