Structure Height Limits: Kailua vs Pearl City
How do structure height limits rules compare between Kailua, HI and Pearl City, HI?
Kailua and Pearl City have similar restriction levels.
Kailua, HI
Honolulu County
ROH Sec. 21-4.60 caps building heights and defines building envelope planes for Kailua structures. Residential districts typically allow 25 to 30 feet, protecting windward viewsheds and ocean breezes.
View full Kailua rules →Pearl City, HI
Honolulu County
Pearl City structure heights follow ROH 21-4.60 with residential envelope planes in 21-3.70-1, typically 25 feet in R-5 districts covering Waiau, Manana, and the core Pearl City CDP.
View full Pearl City rules →Key Facts Comparison
| Fact | Kailua | Pearl City |
|---|---|---|
| - | - | |
| R-5 height | - | 25 feet typical |
| R-7.5/R-10 | - | 30-foot envelope |
| Code section | - | ROH 21-4.60 |
| Airspace overlay | - | FAA Part 77 |
Highlighted rows indicate differences between cities.
Kailua FAQ
Can I build a two-story home in Kailua?
Yes, most residential zones allow two stories within the 25 to 30 foot height envelope under ROH 21-4.60.
Do solar panels count toward height?
Roof-mounted solar panels generally receive exceptions, but ground-mounted or racked systems may be limited by envelope rules.
Pearl City FAQ
How tall can a Pearl City home be?
Most Pearl City residential districts cap structure height at 25 feet in R-5 and 30 feet in R-7.5 and R-10 under ROH 21-4.60 and 21-3.70-1 envelope planes. FAA limits may apply near flight paths.
Does proximity to Pearl Harbor affect height?
Yes. FAA Part 77 imaginary surfaces may restrict absolute building height near the Joint Base approach corridors. Homes in some Pearl City areas must review both ROH and FAA limits before adding stories.
Compare other topics
See how Kailua and Pearl City compare on other ordinance categories.
Want to add a third city?
Use our full comparison tool to compare up to three cities.
Open Comparison Tool