Hawaii Building Codes and Contacts

The following information is reprinted with permission from the Building Codes Assistance Project:
Hawaii climate zones
Current Commercial Code

Hawaii Energy Building Code
Based on the 2015 IECC with state-specific amendments
Effective 7/1/2015

Current Residential Code

Hawaii Energy Building Code
Based on the 2015 IECC with state-specific amendments
Effective 7/1/2015


Energy codes are adopted and enforced at the county level. For all commercial buildings and all residential structures over three stories in height, field inspections by the County Public Works Department (Design and Construction Department in the city and county of Honolulu) are conducted during the established inspection process mandated by the building code. No special procedures are required to enforce the energy requirements. Enforcement for state buildings is handled by the County Building Departments. State buildings are specifically cited in the state law that mandated which counties must adopt the state code or equivalent.

Read more about:

Climate Zone: 1A

Code Adoption and Change Process

Code Change Process

The Hawaii Building Code Council is tasked with developing the state’s building codes, including the state energy conservation code. After soliciting input from the community through small business review and several public hearing and comment periods, the Council publishes a draft recommendation. This recommendation is the subject of public hearings on each of the four counties (Oahu, Maui, Hawaii, and Kauai) as well as announced in public notices published in the state’s largest local newspapers. The recommendation is then filed as an Administrative Directive and approved by the Governor. It is then filed with the Office of the Lt. Governor and becomes effective ten days later.

The counties may adopt the model code as-is or modify, provided it is at least as stringent as the model code. The energy code bills are introduced to the county councils and are heard by the councils at three hearings. Thereafter, the bills are signed into law by the mayors. There is usually a 60 or 90 day lead-in time after the signing.

Code Change Cycle

No set schedule

Next Code Update


Hawaii Code Contacts

Howard Wiig
Institutional Energy Analyst
Department of Business, Economic Development and Tourism
Email: howard.c.wiig@hawaii.gov

This information was compiled by the Building Codes Assistance Project, and used with their permission.