East Honolulu, HI Swimming Pools & Spas: Fencing & Safety Requirements (2026)
Key Facts
- 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
Summary
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.
Sec. 16-6.2 Fences and Other Protective Devices. See Sections 3109.4 and 3109.5 of the International Building Code, as amended. All provisions of the building, electrical and plumbing codes shall be applicable unless otherwise indicated in this section.
[Amending Section 3109.4:] Section 3109.4 Residential Swimming Pools. Residential swimming pools are accessory to R-3 residential occupancies. Residential swimming pools shall conform to Sections 3109.4.1 through 3109.4.3 and to ROH Chapter 16, Article 6.
Full Breakdown
East Honolulu (Hawaii Kai, Aina Haina, Niu Valley, Kuliouou, Waialae-Kahala) is an unincorporated community within the City and County of Honolulu, so the Revised Ordinances of Honolulu (ROH) control. ROH Sec. 4 states that 'Residential swimming pools are accessory to R-3 residential occupancies. 1, the top of the barrier must be not less than 48 inches above grade measured on the side facing away from the pool, the vertical clearance between grade and the bottom of the barrier must be not greater than 2 inches, openings must not allow passage of a 4-inch-diameter sphere, and pedestrian access gates must be self-closing and self-latching (Sec.
7). 5-foot fence height with self-latching gates at least four feet above ground; the City repealed that language and now incorporates the building-code barrier standard by reference. A barrier is triggered for any pool, spa, or hot tub holding water at least 18 inches deep.
Violations & Fines
Pool-barrier violations are enforced by the City and County of Honolulu Department of Planning and Permitting under ROH Sec. 16-6.6. A violation is a misdemeanor punishable by a fine of up to $1,000 and/or up to one year imprisonment, with each day a separate offense; the building superintendent may also impose administrative civil fines of up to $1,000 per day until the unprotected pool is brought into compliance.
Frequently Asked Questions
Do I need a fence around my pool in Hawaii Kai?
How high must the pool fence be?
What are the gate requirements?
Sources & Official References
Other rules in East Honolulu
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