Hawaii County, HI Swimming Pools & Spas: Pool Permits (2026)
Swimming pool permit rules in Hawaii County, HI, also covering above-ground pools, in-ground pools, and spa installations, set fencing, barrier, alarm, and inspection requirements.
Key Facts
- Permit trigger
- Pool or water feature 24+ inches deep
- Exempt
- Under 24" pools for 1-2 family homes
- Enforcing agency
- DPW Building Division (authority having jurisdiction)
- Unpermitted work penalty
- $1,000 plus fees, or fees doubled
- Combined permit
- Allowed if pool built with new home
- Coastal lots
- May need flood/SMA compliance declaration
Summary
Hawai'i County requires a building permit before you construct a residential swimming pool: HCC Section 5-3-1(a)(1) covers erecting or constructing any structure, and a pool of 24 inches or more deep counts. The only carve-out is a water feature or pool under 24 inches deep serving a one- or two-family home, exempted by Section 5-3-22(a)(1)(K).
Section 5-3-1. Permit required; generally. (a) Except as provided in division 2, no person shall perform any of the following work or cause or permit the same to be done on any building or structure in the County, without first obtaining a permit for this work from the authority having jurisdiction: (1) Erect, construct, enlarge, alter, repair, relocate, improve, remove, convert, or demolish any building or structure... Section 5-3-22. Building work; exempt. (a) A permit shall not be required for any of the following building work, provided no electrical work or plumbing work is proposed: ... (K) Water features and swimming pools less than twenty-four inches in depth, for one and two-family dwelling units; or ... Section 5-7-3(d). Work begun without permit. When work for which a permit is required by the construction code has commenced without obtaining a permit, the fees shall be either $1,000 plus the fees specified by this code, or the fees specified by this code shall be doubled, whichever is greater.
Official source re-checked September 8, 2026: the cited page had not changed since it was quoted.
Full Breakdown
The county's general permit statute, HCC Section 5-3-1(a), bars anyone from erecting, constructing, enlarging or repairing 'any building or structure' without first getting a permit from the authority having jurisdiction, the Department of Public Works Building Division. A residential pool falls squarely under that structure language. 2 of the adopted Residential Building Code, needs a permit. If the pool is built at the same time as the house, Section 5-3-5(1) lets the owner combine it under a single permit along with other accessories like a fence, wall or garage; a pool added later to an existing home needs its own separate permit under that same section's general rule.
Permit fees are valuation-based under Section 5-7-3(c), calculated from International Code Council building valuation data covering all construction work under the permit. Owners near the shoreline should also expect the permitting authority to require a declaration of compliance with chapter 27 (flood control) and HRS chapter 205A (special management areas) under Section 5-3-21(a), both directly relevant to pool siting on the Big Island's coastal lots.
Violations & Fines
Start digging or pouring concrete before the permit is issued and Section 5-7-3(d) imposes a flat $1,000 penalty added on top of the normal permit fees, or doubles the fees outright, whichever amount is greater. Paying that penalty does not excuse the work from having to meet every construction-code requirement, and it does not shield the owner from any other penalty the code allows. The only exception is genuine emergency work under Section 5-3-25, and even then a permit must be obtained as soon as practicable or the enhanced fee applies anyway.
Frequently Asked Questions
Does a small inflatable kiddie pool need a permit in Hawai'i County?
Can I get one permit for my new house and its pool together?
What happens if I built my pool without pulling a permit first?
Sources & Official References
Other rules in Hawaii County
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