Lot Coverage Limits: Kapolei vs Mililani Town
How do lot coverage limits rules compare between Kapolei, HI and Mililani Town, HI?
Kapolei and Mililani Town have similar restriction levels.
Kapolei, HI
Honolulu County
ROH Sec. 21-3.70-1 limits impervious coverage on Kapolei residential lots, including a 75 percent impervious cap for dwellings permitted after May 1, 2019.
View full Kapolei rules →Mililani Town, HI
Honolulu County
Mililani Town residential lots follow ROH Sec. 21-3.70-1 impervious caps. Homes permitted after May 1, 2019 are limited to 75 percent impervious coverage, with HOAs often requiring additional landscaped area.
View full Mililani Town rules →Key Facts Comparison
| Fact | Kapolei | Mililani Town |
|---|---|---|
| - | - |
Highlighted rows indicate differences between cities.
Kapolei FAQ
Do artificial turf areas count as impervious?
Classification depends on the underlying base and drainage; DPP determines counted impervious area during plan review.
Can I add a pool if my lot is already near the cap?
You may need to remove paving or use pervious materials to stay within the 75 percent impervious cap.
Mililani Town FAQ
Can I extend my driveway to fit an extra vehicle?
Possibly, but confirm total impervious coverage stays under 75 percent and HOA approves the revised frontage design.
Does a covered lanai count as impervious?
Yes, roofed lanais typically count as impervious for coverage calculations, even if the floor is open slab or deck.
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