Fencing Requirements: East Honolulu vs Mililani Town
How do fencing requirements rules compare between East Honolulu, HI and Mililani Town, HI?
East Honolulu and Mililani Town have similar restriction levels.
East Honolulu, HI
Honolulu County
East Honolulu is governed by the City and County of Honolulu, whose Building Code (ROH Chapter 16, Article 6) requires every residential swimming pool to be enclosed by a barrier meeting International Building Code Sections 3109.4 and 3109.5. The barrier must be at least 48 inches high, have no more than a 2-inch gap at the bottom, openings no larger than a 4-inch sphere, and self-closing, self-latching gates.
View full East Honolulu rules →Mililani Town, HI
Honolulu County
Residential pools in Mililani Town must be enclosed by compliant fences, walls, self-latching gates, or approved safety covers under ROH Sec. 16-6.2.
View full Mililani Town rules →Key Facts Comparison
| Fact | East Honolulu | Mililani Town |
|---|---|---|
| Code Section | ROH Sec. 16-6.2; IBC Sec. 3109.4 | - |
| Minimum barrier height | 48 inches (4 ft) | - |
| Max gap under barrier | 2 inches | - |
| Max opening | No 4-inch sphere passage | - |
| Gates | Self-closing and self-latching | - |
| Triggering depth | Water 18 inches or more deep | - |
| - | - |
Highlighted rows indicate differences between cities.
East Honolulu FAQ
Do I need a fence around my pool in Hawaii Kai?
Yes. ROH Sec. 16-6.2 requires every residential pool to be enclosed by a barrier meeting International Building Code Section 3109.4, which mandates a barrier at least 48 inches high with self-closing, self-latching gates. The requirement applies to any pool, spa, or hot tub holding water 18 inches or more in depth.
How high must the pool fence be?
At least 48 inches (four feet) above grade, measured on the side of the barrier that faces away from the pool, under IBC Section 3109.4.1 as adopted by Honolulu. The older ROH 16-6.2 figure of four and one-half feet was replaced by the building-code standard.
What are the gate requirements?
Pedestrian access gates must be self-closing and have a self-latching device, and openings in the barrier must not allow passage of a 4-inch-diameter sphere, so a small child cannot pass through (IBC Sec. 3109.4.1).
Mililani Town FAQ
Does my Mililani Town backyard fence already qualify?
Possibly. It must meet height, opening, and gate-hardware standards of ROH 16-6.2 to serve as the pool barrier.
Can the HOA require a different fence than the city?
HOAs often add aesthetic rules, but the fence must at a minimum satisfy ROH 16-6.2 safety standards.
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