1 rule for unincorporated Maui County, Hawaii.
Verified from official government sources
Maui County treats what most jurisdictions call ADUs as 'accessory dwellings' (commonly called ohana units) under Title 19 of the Maui County Code, Chapter 19.35. One accessory dwelling is allowed on residential lots under 7,500 square feet, and up to two accessory dwellings are allowed on lots of 7,500 square feet or larger, with the maximum size of each unit scaled to net lot area (from 500 sf on small lots up to 1,200 sf on lots of 87,120 sf or more). Accessory dwellings are permitted in residential and rural zoning districts but cannot be used as short-term rentals, transient vacation rentals, or bed-and-breakfast homes. Hawaii Act 39 (Session Laws of Hawaii 2024) created HRS 46-4.8 and requires Maui County to amend its ordinances by December 31, 2026 to allow at least two accessory dwellings on every residentially zoned lot.
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