Solar Array (Photovoltaic) Permit in Ammon, Idaho

Ammon requires a solar array (photovoltaic) permit for: Site plan required showing all property lines, street names, setbacks on all four sides, existing structures, owner/contractor name, north arrow, site address, Division/Lot/Block, zone, and location of added utilities — submitted electronically to the City Planning & Zoning Director; Building Permit required; application available on the City's website under Building Department > Solar/Roofing permit application; One-line electrical diagram and full electrical diagram required for all buildings; Location of solar array on the roof must be shown; All racking/mounting must be U.L. listed, with documentation provided; Engineer letter with Idaho stamp required for the existing roof; All required safety labeling must be shown; 2018 IBC (or IRC, if applicable) code reference required; irregular buildings in Seismic Zone D require stamped engineering per IBC 301.2.2.6; Plans must be submitted electronically as PDF to permits@cityofammon.us. If your project isn't listed, confirm with City of Ammon Building Department at 208-612-4000 before starting work.

No distinct fee line for solar/PV exists in Ammon's Fee Resolution. A solar array installation is billed as a standard valuation-based Building Permit for the structural/racking portion and a standard Electrical Permit (alteration category) for the wiring/interconnection portion, per City Fee Resolution 2026-008.

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

A site plan (property lines, setbacks, utility locations), a Building Permit application, a one-line and full electrical diagram, U.L. listing documentation for racking/mounting, an Idaho-stamped engineer letter for the existing roof, and required safety labeling, per the City's Solar Array checklist.

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.