Tiny home rules in Kailua, HI — covering tiny houses on wheels (THOWs), park model RVs, and tiny home on foundation builds — determine where they are legal and how they get permitted.
Honolulu has no dedicated tiny home ordinance; permanent tiny homes are regulated as ADUs, while tiny homes on wheels are not permitted as full-time dwellings in Kailua residential districts.
There is no standalone tiny home code in the ROH. Permanent tiny homes on foundations are treated as accessory dwelling units under Sec. 21-5.720 and must meet ADU size, parking, setback, and occupancy standards. Tiny homes on wheels fall under rules for recreational vehicles and generally cannot serve as permanent dwellings in Kailua's residential zones. Building code adoption under ROH Sec. 16-1.1 applies. Given Kailua's high land values and permit scrutiny, enforcement against informal tiny home occupancy is active, especially on agricultural-fringe and beach-adjacent lots.
Occupying a tiny home on wheels as a permanent residence, or erecting a tiny home without ADU permits, can lead to notices of violation and daily fines.
Kailua, HI
Residential pool barriers in Kailua must meet ROH Sec. 16-6.2, which mandates fencing and other protective devices around swimming pools. These rules reduce ...
Kailua, HI
Retaining walls in Kailua follow ROH Sec. 21-4.40, which caps fill-retention walls within required yards at 6 feet. Terraced walls count toward combined heig...
Kailua, HI
Kailua fence materials are defined under ROH Sec. 21-4.60, which recognizes wrought iron, wire, wood, vinyl, plastic, and masonry with post foundations. Corr...
Kailua, HI
Fences along shared property lines in Kailua are governed by ROH Sec. 21-4.30 yard and setback rules. Honolulu has no dedicated spite-fence statute, so dispu...
Kailua, HI
Kailua public parks are closed to entry during posted night hours under ROH Sec. 10-1.2, with narrow exceptions for traversing beach parks to reach the shore...
Kailua, HI
Kailua follows the state juvenile curfew under HRS Sec. 577-16, which bars children under 16 from public places between 10:00 p.m. and 4:00 a.m. without a pa...
Side-by-side rule comparisons with other cities in Honolulu County.
See how other cities in Honolulu County handle tiny homes.
See how Kailua's tiny homes rules stack up against other locations.
Help us keep this page accurate. If you notice an error or outdated information, let us know.