Applicable Building Type(s)

New non-residential

Policy Requirement Level


Policy Sequence


Development Authority: The Ministry of Land, Infrastructure and Transport (MLIT)

Implementation Authority: MLIT and the Ministry of Economy, Trade and Industry (MTI)

Enforcement Authority: Local Authority

Prescriptive Compliance path

Energy Requirements:


Criteria for preventing heat loss includes building type, use and orientation, climate zone, insulation material


Criteria for calculations include window size type and shading, as well as building type, size and climate zone


Glazing ratios form part of the thermal loss coefficient

Space Heating System

The coefficient for the air conditioning load includes heat from temperature difference between inside and outside conditions, solar radiation, heat generated inside, outside air intake and are dependent on building type and climate zone

Water Heating System

Factors in the frame coefficient include requirements on the system's efficiency, pipe insulation, length and diameter 


Primary energy consumption for lighting includes coeffiecients on automatic controls, zoning and according to building size and type, room shape and finishing, arrangement of lighting fixtures.

Renewable Energy

Solar heating for water is a factor in establishing the frame energy requirement

End-uses considered:

Space cooling, Space heating, Water heating, Lighting interior, Ventilation

Performance Compliance path

Frame based requirements establish annual thermal loads per m2

Energy Requirements:



Climate zones