Plumbing Permit in Ammon, Idaho

Ammon requires a plumbing permit for: Plumbing permit required for residential (single-family, apartments, condominiums, townhouses, and other multiple living units — each living unit requires its own residential permit fee), replacement/addition to existing residential, existing residential basement finish, and non-residential (commercial/industrial/schools/hospitals/churches/hotels/motels) work; Separate permits are required for residential sewer and water service line installations; Governed by the 2017 Idaho State Plumbing Code as identified on the City of Ammon Building Department page; Apply through the BluePrince portal. If your project isn't listed, confirm with City of Ammon Building Department at 208-612-4000 before starting work.

In Ammon, the published Residential — 0-1,500 sq ft is: $160.00 (includes 3 inspections). Additional published fees: Residential — 1,501-2,500 sq ft — $190.00 (includes 3 inspections); Residential — 2,501-3,500 sq ft — $250.00 (includes 4 inspections); Residential — 3,501-4,500 sq ft — $310.00 (includes 5 inspections); Residential — 4,501 sq ft and up — $310.00 plus $60 for each additional 1,000 sq ft or portion thereof (includes 6 inspections); Replacement or Addition to Existing Residential — $50.00 permit fee plus $10.00 per fixture inspection fee; Existing Residential Basement Finish — 0-1,500 sq ft — $90.00 (includes 2 inspections); Existing Residential Basement Finish — 3,501 sq ft and up — $225.00 (includes 5 inspections); Non-Residential Base Permit Fee — $50.00, plus inspection fee of 3% of job value up to $20,000, 2% of value $20,000-$100,000, 1% of value $100,000-$200,000, 0.5% of value above $200,000; Minimum Permit Fee (new construction, remodel, or alteration) — $50.00. These are the jurisdiction's own published figures — see the fee schedule table and source citations on this page.

Ammon does not publish a plan-review timeline for this permit. Contact City of Ammon Building Department at 208-612-4000 for current turnaround.

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

Ammon requires 3 inspection(s) for a plumbing permit, in order: Underground Plumbing, Rough-In, Final. Schedule each through City of Ammon Building Department (208-612-4000).

Apply through City of Ammon Building Department at 2135 South Ammon Road, Ammon, ID 83406. Phone: 208-612-4000, email: building@cityofammon.us. Office hours: Monday-Friday 7:30 AM-12:00 PM & 1:00 PM-4:30 PM (permits not accepted after 4:00 PM); Inspection hours Mon-Thu 9:00 AM-3:00 PM, Fri 9:00 AM-12:00 PM. Official information: https://www.cityofammon.us/departments/building/.

Ammon, Idaho has adopted: City of Ammon Building Department adopts codes independently by ordinance under Ammon Municipal Code Title 07 (Building Regulations); the City self-administers building, electrical, plumbing, and mechanical permitting rather than relying on the Idaho Division of Building Safety for direct administration. Source: City of Ammon Building Department page, https://www.cityofammon.us/departments/building/; 2018 International Building Code (IBC), published by the International Code Council. Source: City of Ammon Building Department page, code link to https://codes.iccsafe.org/content/IBC2018P6; 2018 International Residential Code (IRC) for One- and Two-Family Dwellings. Source: City of Ammon Building Department page, code link to https://codes.iccsafe.org/content/IRC2018P6; 2018 International Existing Building Code (IEBC). Source: City of Ammon Building Department page, code link to https://codes.iccsafe.org/content/IEBC2018P5; 2018 International Fire Code (IFC). Source: City of Ammon Building Department page, code link to https://codes.iccsafe.org/content/IFC2018P6; 2018 International Fuel Gas Code (IFGC). Source: City of Ammon Building Department page, code link to https://codes.iccsafe.org/content/IFGC2018/index; 2018 International Mechanical Code (IMC). Source: City of Ammon Building Department page, code link to https://codes.iccsafe.org/content/IMC2018P4; 2018 International Energy Conservation Code (IECC). Source: City of Ammon Building Department page, code link to https://codes.iccsafe.org/content/iecc2018; 2017 Idaho State Plumbing Code (based on the Uniform Plumbing Code, adopted statewide pursuant to Idaho Code Title 54, Chapter 26). Source: City of Ammon Building Department page; National Electrical Code (NEC) — City of Ammon Building Department page identifies the currently adopted edition as the 2023 NEC (NFPA 70), consistent with the edition adopted statewide by Idaho pursuant to Idaho Code Section 54-1001. Electrical permits within Ammon city limits are issued and inspected by the City's own Building Department. Source: City of Ammon Building Department page, code link to https://www.nfpa.org/codes-and-standards/nfpa-70-standard-development/70; Ammon Municipal Code Title 10, Chapter 7 (Planning and Zoning — Accessory Dwelling Units, Section 4) governs ADU standards enforced in conjunction with Building Department permitting. Source: City of Ammon ADU Regulations page, https://www.cityofammon.us/services/building-permits/adu-regulations/; Ammon Municipal Code Section 15.04.030 establishes stop-work-order and violation-fee authority for work commenced without a required building permit. Source: City Fee Resolution 2026-008 (Resolution Number 2026-008, adopted April 16, 2026, effective April 16, 2026), Section 1-B. Local amendments apply — see the Ammon overview page for the full list.