Beta — site is under development, information may contain errors. Read disclaimer

Hawaii Zoning & Land Use Guide

Last updated: Verified:

Comprehensive guide to Hawaii zoning laws, building codes, and land use regulations.

Key Facts

  • Building Code: 2018 IBC with Hawaii amendments
  • State ADU Law: Varies by city
  • ADU Details: Hawaii does not have a statewide ADU mandate, though the City and County of Honolulu has adopted local ordinances permitting accessory dwelling units on residentially zoned lots. Other counties handle ADU policy at the local level.

Cities in Hawaii