CASBEE – Comprehensive Assessment System for Building Environmental Efficiency
CASBEE certification was designed by the Japan Sustainable Building Consortium (JSBC) in 2001. It uses building environmental efficiency (BEE) as a basis for assessment and is tailored to real estate needs in Japan and Asia.
CASBEE is composed of four assessment tools for each phase in a building’s lifecycle, from design and construction through to operation, renovation and demolition. It is designed to accommodate a wide range of uses (offices, schools, apartments, etc.) and is based on the principles behind BREEAM and LEED.
Assessment criteria
- Energy efficiency
- Resource efficiency
- Indoor environment
- Local environment
The sustainability of a building is measured using a performance assessment of the building environment derived from the relationship between building environmental quality and performance (Q for quality) and building environmental loadings (L for loadings). Building Environmental Efficiency (BEE = Q/L): The higher the Q value and the lower the L value, the more efficient and therefore more sustainable the building is.
Coverage
- Pre-design
- New construction
- Existing building
- Renovation
- Residential and commercial buildings
Ratings
- S (excellent)
- A
- B+
- B-
- C (poor)
