Boise, ID Swimming Pools & Spas: Pool Permits (2026)
Swimming pool permit rules in Boise, ID, also covering above-ground pools, in-ground pools, and spa installations, set fencing, barrier, alarm, and inspection requirements.
Key Facts
- Permit trigger
- Pools deeper than 4 feet
- Exempt
- Prefabricated pools 4 ft deep or less
- Issuing agency
- Planning & Development Services Dept.
- Code basis
- IRC § R105.2 (Boise amendment)
- No-permit risk
- Stop work order under § R114
Summary
Boise requires a building permit for any residential swimming pool deeper than four feet; only prefabricated pools four feet deep or shallower skip the permit step under the city's residential code amendments.
R105.2 Work exempt from permit. Exemption from the permit requirements of this code shall not be deemed to grant authorization for any work to be done in any manner in violation of the provisions of this code or any other laws or ordinances of this jurisdiction. Permits shall not be required for the following: Building: ... 7. Prefabricated swimming pools that are not greater than four (4) feet (1219 mm) deep.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: 2026 S-31: Code current through: Ord. 20-26, passed 6-9-2026).
Full Breakdown
Under Boise's adopted IRC amendment at City Code § 9-1B-8, permits are not required for prefabricated swimming pools that are no more than four feet deep. Anything deeper, including most in-ground pools, falls outside that exemption and needs a building permit from Planning and Development Services before construction starts. The parallel commercial-code exemption at § 9-1A-14 sets an even tighter bar: above-ground pools under 5,000 gallons and less than 24 inches deep.
Violations & Fines
Building a pool that needs a permit without one exposes the owner to a stop work order under the city's adopted IRC Section R114, halting construction until the violation is corrected and the permit is obtained.
Frequently Asked Questions
Does a small above-ground pool need a permit in Boise?
What happens if I install a pool without a required permit?
Sources & Official References
Other rules in Boise
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