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Plumbing Permit in Kuna, Idaho

Required for all plumbing installations in Kuna. The Plumbing Program ensures plumbing practices comply with the Idaho State Plumbing Code (based on the Uniform Plumbing Code). A plumbing permit must be obtained prior to any commencement of work. Plumbing permits are available at the City of Kuna Building Department. Commercial and industrial plumbing fees run on a ×0.02 formula, and the fee table continues into additional tiers above $10,000 — see the fees below.

Verified 2026-07-16 · Source

When you need this permit

  • Plumbing permit required before commencing any plumbing work
  • Submit Plumbing Permit Application (PDF) to the Building Department
  • Licensed Idaho plumbing contractor required for work not performed by the homeowner on their own primary residence

Required documents

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Fee schedule

New Single Family Dwelling — up to 1,500 sq ftResolution R74-2023A
$130
New Single Family Dwelling — 1,501 to 2,500 sq ftResolution R74-2023A
$195
New Single Family Dwelling — 2,501 to 3,500 sq ftResolution R74-2023A
$260
New Single Family Dwelling — 3,501 to 4,500 sq ftResolution R74-2023A
$325
New Single Family Dwelling — over 4,500 sq ftResolution R74-2023A
$325 + $65 per additional 1,000 sq ft
Existing ResidenceResolution R74-2023A
$65 + $10 per additional fixture
Detached Shop/Accessory BuildingResolution R74-2023A
$65 + $10 per additional fixture
Duplex Apartment or CondominiumResolution R74-2023A
$260
Sewer LineResolution R74-2023A
$65
Water LineResolution R74-2023A
$65
Water Heater ReplacementTankless heaters require mechanical permit for venting and gas piping; Resolution R74-2023A
$65
Modular, Manufactured or Mobile HomeResolution R74-2023A
$65
Commercial/Industrial Plumbing (contract value ≤$10,000)Resolution R74-2023A
$60 + (contract value × 0.02)
Commercial/Industrial Plumbing ($10,001–$100,000)Resolution R74-2023A; tier confirmed on live fee schedule 2026-07-16, previously missing from this record
$260 + ((contract value − $10,000) × 0.01)
Commercial/Industrial Plumbing (contract value >$100,000)Resolution R74-2023A; tier confirmed on live fee schedule 2026-07-16, previously missing from this record
$1,160 + ((contract value − $100,000) × 0.005)
Re-inspection FeeResolution R57-2021
$65 each (after each failed attempt)

Review timeline

Plan reviewTypical estimate — confirm current times with the Kuna building department
~3–10 business days

How long did your Plumbing Permit permit actually take in Kuna?

Anonymous — one question, no email. Answers are combined and only shown once at least 5 people have reported.

Inspection process

  1. 1

    Rough-In Plumbing

    Inspection of rough-in plumbing before walls are closed

  2. 2

    Final Plumbing

    Final inspection of all plumbing installations

See the full Kuna inspection guide — scheduling & re-inspection fees →

Tips

  • Plumbing permits are available at the City of Kuna Building Department
  • A plumbing permit must be obtained prior to any commencement of work
  • Tankless water heater replacements also require a mechanical permit for venting and gas piping

Frequently asked questions

Kuna requires a plumbing permit for: Plumbing permit required before commencing any plumbing work; Submit Plumbing Permit Application (PDF) to the Building Department; Licensed Idaho plumbing contractor required for work not performed by the homeowner on their own primary residence. If your project isn't listed, confirm with City of Kuna Building Department at (208) 922-5546 before starting work.

In Kuna, the published New Single Family Dwelling — up to 1,500 sq ft is: $130. Additional published fees: New Single Family Dwelling — 1,501 to 2,500 sq ft — $195; New Single Family Dwelling — 2,501 to 3,500 sq ft — $260; New Single Family Dwelling — 3,501 to 4,500 sq ft — $325; New Single Family Dwelling — over 4,500 sq ft — $325 + $65 per additional 1,000 sq ft; Existing Residence — $65 + $10 per additional fixture; Detached Shop/Accessory Building — $65 + $10 per additional fixture; Duplex Apartment or Condominium — $260; Sewer Line — $65; Water Line — $65; Water Heater Replacement — $65; Modular, Manufactured or Mobile Home — $65; Commercial/Industrial Plumbing (contract value ≤$10,000) — $60 + (contract value × 0.02); Commercial/Industrial Plumbing ($10,001–$100,000) — $260 + ((contract value − $10,000) × 0.01); Commercial/Industrial Plumbing (contract value >$100,000) — $1,160 + ((contract value − $100,000) × 0.005); Re-inspection Fee — $65 each (after each failed attempt). These are the jurisdiction's own published figures — see the fee schedule table and source citations on this page.

Plan review for a plumbing permit in Kuna typically runs 3–10 business days. This is an estimate, not a published figure — confirm current review times with City of Kuna Building Department at (208) 922-5546.

You'll need: Plumbing Permit Application (PDF). See the required-documents checklist on this page for details on each.

Kuna requires 2 inspection(s) for a plumbing permit, in order: Rough-In Plumbing, Final Plumbing. Schedule each through City of Kuna Building Department ((208) 922-5546).

Apply through City of Kuna Building Department at 751 W. 4th Street, P.O. Box 13, Kuna, ID 83634. Phone: (208) 922-5546, email: BuildingPermits@KunaID.gov. Office hours: Mon–Fri 8:00 AM – 5:00 PM; inspection requests must be submitted prior to 4:00 PM for next business day. Official information: https://kunacity.id.gov/119/Building-Department.

Kuna, Idaho has adopted: 2018 International Building Code (IBC) — adopted statewide per Idaho Building Code Act; 2018 International Residential Code (IRC, Parts I, II, III and IX) — adopted statewide; 2018 International Energy Conservation Code (IECC) — adopted statewide; 2018 International Existing Building Code (IEBC) — adopted statewide; 2018 International Mechanical Code (IMC) — adopted statewide; 2018 International Fuel Gas Code (IFGC) — adopted statewide; 2023 National Electrical Code (NEC/NFPA 70) — adopted via Idaho Electrical Board; 2017 Idaho State Plumbing Code (ISPC) — based on 2015 Uniform Plumbing Code; 2018 International Fire Code (IFC) — administered by Idaho Fire Marshal. Local amendments apply — see the Kuna overview page for the full list.

Sources & verification

Verified against official sources. Last reviewed 2026-07-16.

Fee schedules

Department & other records

Fees, timelines, and adopted codes are researched from each jurisdiction's published records — see how we verify. Requirements change and vary by project, so always confirm the current details with the Kuna building department before you submit. PermitBase is an independent reference and is not affiliated with any government agency.

Kuna's permit history isn't searchable here yet

This page covers what the permit requires. What we don't have for Kuna yet is the record of permits actually issued — the history you'd search by street address. That is a gap in our coverage, not a statement about any particular property.

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