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🏊 Swimming Pools & Spas/Pool Permits

Pool Permits: Honolulu vs Mililani Town

How do pool permits rules compare between Honolulu, HI and Mililani Town, HI?

Honolulu and Mililani Town have similar restriction levels.

Honolulu, HI

Honolulu County

Some Restrictions

A building permit from the Honolulu Department of Planning and Permitting is required before constructing any residential swimming pool, under ROH Chapter 16, Article 6. Plans must be prepared by a licensed Hawaii engineer or architect.

View full Honolulu rules β†’

Mililani Town, HI

Honolulu County

Some Restrictions

Mililani Town homeowners must secure a City and County of Honolulu building permit before constructing or altering a residential pool under ROH Chapter 18.

View full Mililani Town rules β†’

Key Facts Comparison

FactHonoluluMililani Town
Permit requiredYes β€” before construction-
Plans byLicensed HI engineer or architect-
Barrier minimum height48 inches-
Governing codeROH Ch. 16, Art. 6-
Permit issuerHonolulu DPP-
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Highlighted rows indicate differences between cities.

Honolulu FAQ

Do I need a permit to install an above-ground pool in Honolulu?

Yes. ROH Chapter 16 requires a building permit for any swimming pool installation. Contact the Honolulu Department of Planning and Permitting before construction or installation begins.

What fence is required around a residential pool?

ROH Β§ 16-6.2 requires a barrier at least 48 inches high with self-closing, self-latching gates; gaps may not allow passage of a 4-inch diameter sphere.

Who enforces pool permit requirements in Honolulu?

The Honolulu Department of Planning and Permitting (DPP) enforces building permit requirements, including pools, and can issue stop-work orders for unpermitted construction.

Mililani Town FAQ

Do I need HOA approval as well as a city permit?

Most Mililani Town homes have HOA covenants requiring architectural review in addition to the city permit.

Does replacing pool equipment need a permit?

Like-for-like equipment swaps often do not require a permit, but electrical or plumbing changes usually do.

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