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Solar Photovoltaic (PV) Permit in Unincorporated Canyon County, Idaho

Required for installation of rooftop or ground-mount solar photovoltaic systems in unincorporated Canyon County. The structural/mounting portion is a building permit billed under the County's general valuation-based Building Permit Fees Schedule (Table 1-A) — no solar-specific fee line item is published. Electrical, mechanical, and plumbing work (with the narrow exception of built-in solid-fuel appliances like wood/pellet stoves) is handled entirely by the State of Idaho DOPL, not the County, per the Building Department's own published statement.

Verified 2026-07-20 · Source

When you need this permit

  • Building permit required for the structural/mounting portion of a solar PV installation, valued per Canyon County's Table 1-A valuation determination, which includes 'all finish work, painting, roofing, electrical, plumbing, heating, air conditioning...and any other permanent equipment' in the total construction value used to compute the fee
  • The ELECTRICAL interconnection portion of a solar PV installation is handled entirely by the State of Idaho, Division of Occupational and Professional Licenses (DOPL) — per the County's own Building Department page: 'all Mechanical, Electrical and Plumbing permits and inspections are handled by the State of Idaho, Division of Occupational and Professional Licenses (DOPL)', apply online at dopl.idaho.gov
  • A $180.00 Plan Review Deposit is required with each building permit application when submittal documents are required
  • Plan review fee for one- and two-family dwellings and accessory structures is 16% of the Table 1-A building permit fee; 65% for all other occupancy types

Required documents

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Fee schedule

Building Permit Fee — $1.00 to $1,000 valuationCanyon County Development Services Building Permit Fees Schedule, Table 1-A — no distinct solar line item published
$30.00
Building Permit Fee — $5,001 to $20,000 valuationTable 1-A
$150 for the first $5,000 plus $12.00 for each additional $1,000 or fraction thereof
Plan Review Deposit (new dwelling/commercial)Canyon County 2025 Permit Fee Schedule and Building Permit Fees Schedule (Exhibit A)
$180.00 (per the 2025 Permit Fee Schedule) / prepayment toward the Plan Review Fee (16% of the Table 1-A building permit fee for 1-2 family dwellings)

Review timeline

Plan reviewTypical estimate — confirm current times with the Unincorporated Canyon County building department
~5–15 business days

How long did your Solar Photovoltaic (PV) Permit permit actually take in Unincorporated Canyon County?

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

Inspection process

  1. 1

    Structural/Mounting Final (County)

    Racking attachment, roof penetration sealing, and structural load compliance verified by Canyon County

  2. 2

    Electrical Interconnection (DOPL, separate permit)

    Conduit, disconnects, inverter, and interconnection point verified by a DOPL-assigned inspector under the separate state electrical permit

See the full Unincorporated Canyon County inspection guide — scheduling & re-inspection fees →

Tips

  • A rooftop solar installation in unincorporated Canyon County typically requires TWO separate permits: a County building permit for the mounting/structural work (Table 1-A) and a State (DOPL) electrical permit for the interconnection — the County's own Building Department page states plainly that Electrical, Mechanical, and Plumbing permits/inspections are all handled by DOPL, not the County.
  • Budget for the $180.00 Plan Review Deposit up front for new dwelling/commercial submittals requiring plan review documents — it is a prepayment toward, not in addition to, the 16%-of-building-permit-fee Plan Review Fee.

Frequently asked questions

Unincorporated Canyon County requires a solar photovoltaic (pv) permit for: Building permit required for the structural/mounting portion of a solar PV installation, valued per Canyon County's Table 1-A valuation determination, which includes 'all finish work, painting, roofing, electrical, plumbing, heating, air conditioning...and any other permanent equipment' in the total construction value used to compute the fee; The ELECTRICAL interconnection portion of a solar PV installation is handled entirely by the State of Idaho, Division of Occupational and Professional Licenses (DOPL) — per the County's own Building Department page: 'all Mechanical, Electrical and Plumbing permits and inspections are handled by the State of Idaho, Division of Occupational and Professional Licenses (DOPL)', apply online at dopl.idaho.gov; A $180.00 Plan Review Deposit is required with each building permit application when submittal documents are required; Plan review fee for one- and two-family dwellings and accessory structures is 16% of the Table 1-A building permit fee; 65% for all other occupancy types. If your project isn't listed, confirm with Canyon County Development Services Department — Building Division at 208-402-4163 before starting work.

In Unincorporated Canyon County, the published Building Permit Fee — $1.00 to $1,000 valuation is: $30.00. Additional published fees: Building Permit Fee — $5,001 to $20,000 valuation — $150 for the first $5,000 plus $12.00 for each additional $1,000 or fraction thereof; Plan Review Deposit (new dwelling/commercial) — $180.00 (per the 2025 Permit Fee Schedule) / prepayment toward the Plan Review Fee (16% of the Table 1-A building permit fee for 1-2 family dwellings). These are the jurisdiction's own published figures — see the fee schedule table and source citations on this page.

Plan review for a solar photovoltaic (pv) permit in Unincorporated Canyon County typically runs 5–15 business days. This is an estimate, not a published figure — confirm current review times with Canyon County Development Services Department — Building Division at 208-402-4163.

You'll need: Building Permit Application; DOPL Electrical Permit (dopl.idaho.gov). See the required-documents checklist on this page for details on each.

Unincorporated Canyon County requires 2 inspection(s) for a solar photovoltaic (pv) permit, in order: Structural/Mounting Final (County), Electrical Interconnection (DOPL, separate permit). Schedule each through Canyon County Development Services Department — Building Division (208-402-4163).

Apply through Canyon County Development Services Department — Building Division at 111 North 11th Avenue, Suite 310, Caldwell, ID 83605. Phone: 208-402-4163, email: BuildingInfo@canyoncounty.id.gov. Office hours: Mon, Tue, Thu, Fri: 8:00 AM – 5:00 PM; Wed: 1:00 PM – 5:00 PM (excluding holidays). Official information: https://www.canyoncounty.id.gov/building-department/.

Unincorporated Canyon County, Idaho has adopted: International Building Code (IBC) — adopted by Canyon County Building Code Ordinance, Canyon County Code §06-01-11; International Residential Code (IRC) for One- and Two-Family Dwellings — adopted by Canyon County Building Code Ordinance, Canyon County Code §06-01-11; International Energy Conservation Code (IECC) — adopted by Canyon County Building Code Ordinance, Canyon County Code §06-01-11; residential provisions as modified by Idaho Statute Title 39 Chapter 41; International Mechanical Code (IMC) — adopted by Canyon County Building Code Ordinance, Canyon County Code §06-01-11; International Fuel Gas Code (IFGC) — adopted by Canyon County Building Code Ordinance, Canyon County Code §06-01-11; International Existing Building Code (IEBC) — adopted by Canyon County Building Code Ordinance, Canyon County Code §06-01-11. Local amendments apply — see the Unincorporated Canyon County overview page for the full list.

No. Per the County's own Building Department page, 'all Mechanical, Electrical and Plumbing permits and inspections are handled by the State of Idaho, Division of Occupational and Professional Licenses (DOPL)' — apply online at dopl.idaho.gov. Canyon County only issues the building permit for the structural/mounting portion.

Sources & verification

Verified against official sources. Last reviewed 2026-07-20.

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 Unincorporated Canyon County building department before you submit. PermitBase is an independent reference and is not affiliated with any government agency.

Other permits in Unincorporated Canyon County

Residential Building Permit (New Construction / Addition / Remodel)Commercial Building Permit (New Construction / Addition / Tenant Improvement)Accessory Structure Permit (Pole Barns, Sheds, Shops, Carports)Manufactured Home PermitAgricultural Exempt Zoning Compliance PermitBuilt-In Woodstove / Pellet Stove Mechanical PermitDemolition PermitRe-Roof PermitEV Charger / EVSE Electrical Permit

Solar Photovoltaic (PV) Permit in other cities

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