Accessory Structures in Ewa Gentry, HI (2026)
5 verified accessory structures rules for Ewa Gentry, Hawaii, sourced directly from the municipal code and official government pages.
Verified from official government sources
ADU Rules
Ewa Gentry homeowners may build one accessory dwelling unit per zoning lot in eligible residential districts, subject to Honolulu LUO size, parking, occupancy, and rental duration rules under ROH Sec. 21-5.720.
Accessory Dwelling Units in Ewa Gentry
Some RestrictionsShed Rules
Backyard sheds in Ewa Gentry must meet Honolulu LUO yard and setback requirements under ROH Sec. 21-4.30, with height limits in Sec. 21-4.60. Small sheds under the ROH Chapter 18 threshold may not need a building permit.
Shed Setbacks and Yard Rules
Some RestrictionsGarage Conversions
A garage conversion in Ewa Gentry is generally treated as creating an accessory dwelling unit under ROH Sec. 21-5.720 and requires a building permit plus replacement parking on the lot.
Converting a Garage to Living Space
Heavy RestrictionsCarport Rules
Carports and garages in Ewa Gentry are limited to 20 ft by 20 ft in horizontal dimensions under ROH Sec. 21-2.140-1, with height and setback standards from Sec. 21-4.30 and 21-4.60 also applying.
Carport and Garage Size Rules
Some RestrictionsTiny Homes
Honolulu has no dedicated tiny-home ordinance; permanent tiny homes in Ewa Gentry are regulated as accessory dwelling units under ROH Sec. 21-5.720, and tiny homes on wheels are not allowed as permanent dwellings.
Tiny Homes Treated as ADUs
Heavy RestrictionsLooking for Honolulu County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Ewa Gentry city rules.
Accessory Structures in Honolulu County →