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Solar PV Permit (via General Building Permit) in Duncan, Arizona

Required for installation of rooftop or ground-mounted solar photovoltaic systems in Duncan. The Town of Duncan does not maintain a separate electrical or solar-specific permit — a single unified Building Permit, billed on the Town's standard valuation-based fee formula, covers all construction work including electrical/interconnection work for a solar installation. Under Arizona Revised Statutes § 9-468 (Solar construction permits; standards), the Town must accept standardized plan content for solar photovoltaic systems (roof plan/elevation, panel mounting details, one-line or three-line electrical diagrams unless a qualified automated permitting platform is used, and inverter cut sheets for DC-to-AC conversion), may not require a professional engineer's stamp unless deemed necessary, and any permit fee charged must be attributable to and may not exceed the actual cost of issuing the permit.

Verified 2026-07-20 · Source

When you need this permit

  • Submit a Building Permit application to the Town of Duncan for the solar PV installation — there is no separate electrical or solar-specific permit application
  • Per A.R.S. § 9-468, plans must show: the location of the photovoltaic system on construction plans (roof plan and elevation), panel mounting details, and an electrical diagram (one-line or three-line) unless a qualified online automated permitting platform is used to verify code compliance
  • For DC-to-AC conversion, include cut sheets and listings for the inverter(s)
  • The Town may not require a stamp from a professional engineer for the solar photovoltaic system unless an engineering stamp is deemed necessary
  • Per A.R.S. § 9-468, any fee charged must be attributable to and may not exceed the Town's actual cost of issuing the permit; a written, itemized list of costs must be provided at the permittee's request

Required documents

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Fee schedule

Building Permit Fee — valuation-based (governs solar PV installations, no distinct solar line)Town of Duncan Schedule of Fees and Charges, 'Planning and Zoning' section, item 1.B 'Building Permit'; directly fetched and text-extracted from the Town's own fee-schedule PDF. No separate electrical or solar/photovoltaic fee line exists — Duncan's permitTypes in this dataset confirm no standalone electrical-permit entry, consistent with a single unified Building Permit covering all trades. Per A.R.S. 9-468, this fee (as applied to solar) may not exceed the Town's actual cost of issuing the permit.
$30.00 plus $4.11 per $1,000 of valuation
Building Plan Review FeeTown of Duncan Schedule of Fees and Charges, item 1.D
65% of the Building Permit Fee

Review timeline

Plan review
Not published — contact the department

How long did your Solar PV Permit (via General Building Permit) permit actually take in Duncan?

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

Inspection process

  1. 1

    Building/Electrical Inspection

    Town inspection of the combined structural/racking and electrical interconnection work under the single Building Permit

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

Tips

  • Duncan has no separate electrical or solar permit — the Town's own permit list confirms only a general Building Permit, a Mobile Home Permit, a Zoning Use Permit, and a Floodplain Development Permit, so a solar installation is filed as a standard Building Permit.
  • Arizona Revised Statutes § 9-468 gives solar installers a statewide right to submit standardized plan content (roof plan/elevation, panel mounting details, electrical diagrams) and caps any municipal solar permit fee at the Town's actual cost of issuing the permit — ask for the Town's itemized cost breakdown if you believe the standard valuation-based fee formula overstates actual cost for a small residential system.
  • Because Duncan is a small town with a single Planning and Zoning office handling all permit types, budget extra lead time and confirm directly with Town Hall, (928) 359-2791, on solar-specific plan review expectations before submitting.

Frequently asked questions

Duncan requires a solar pv permit (via general building permit) for: Submit a Building Permit application to the Town of Duncan for the solar PV installation — there is no separate electrical or solar-specific permit application; Per A.R.S. § 9-468, plans must show: the location of the photovoltaic system on construction plans (roof plan and elevation), panel mounting details, and an electrical diagram (one-line or three-line) unless a qualified online automated permitting platform is used to verify code compliance; For DC-to-AC conversion, include cut sheets and listings for the inverter(s); The Town may not require a stamp from a professional engineer for the solar photovoltaic system unless an engineering stamp is deemed necessary; Per A.R.S. § 9-468, any fee charged must be attributable to and may not exceed the Town's actual cost of issuing the permit; a written, itemized list of costs must be provided at the permittee's request. If your project isn't listed, confirm with Town of Duncan Town Hall — Building Official (Town Manager's Office) at 928-359-2791 before starting work.

In Duncan, the published Building Permit Fee — valuation-based (governs solar PV installations, no distinct solar line) is: $30.00 plus $4.11 per $1,000 of valuation. Additional published fees: Building Plan Review Fee — 65% of the Building Permit Fee. These are the jurisdiction's own published figures — see the fee schedule table and source citations on this page.

Duncan does not publish a plan-review timeline for this permit. Contact Town of Duncan Town Hall — Building Official (Town Manager's Office) at 928-359-2791 for current turnaround.

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

Duncan requires 1 inspection(s) for a solar pv permit (via general building permit), in order: Building/Electrical Inspection. Schedule each through Town of Duncan Town Hall — Building Official (Town Manager's Office) (928-359-2791).

Apply through Town of Duncan Town Hall — Building Official (Town Manager's Office) at 506 SE Old West Highway, P.O. Box 916, Duncan, AZ 85534. Phone: 928-359-2791. Office hours: Monday - Thursday, 8:00 a.m. - 5:30 p.m. (excluding federal holidays); fax 928-359-9146, TTY 800-367-8939. No online permitting portal or email intake address is published — applications are submitted in person or by mail to Town Hall using the paper 'Application for Building Permit and Inspection' form and, where zoning/historic-district/floodplain review also applies, the combined 'Zoning Use, Building, Historic District and Floodplain Permit' form.. Official information: https://duncanaz.us/home/services/building-permits-fees/.

No. The Town of Duncan uses a single, general Building Permit for all construction work, billed at $30.00 plus $4.11 per $1,000 of valuation, plus a plan review fee of 65% of the permit fee. There is no standalone electrical or solar-specific permit.

A.R.S. § 9-468 requires the Town to accept standardized solar plan submittals (roof plan/elevation, panel mounting details, one-line/three-line electrical diagrams unless using a qualified automated permitting platform, and inverter cut sheets), bars a professional engineer's stamp requirement unless deemed necessary, and caps any permit fee at the Town's actual cost of issuing the permit.

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

Other permits in Duncan

Building Permit (Construction / Alteration / Repair / Moving / Demolition)Mobile Home PermitZoning Use PermitFloodplain Development Permit (NFIP)EV Charger / EVSE Permit (via General Building Permit)Sign Permit (No Distinct Product — Regulated Directly Under the Zoning Ordinance)Fire Sprinkler & Fire Alarm Permit (Duncan Valley Rural Fire District)Change of Use (No Distinct Certificate-of-Occupancy Process — Routed Through the Zoning Use Permit's Amendment Track)

Solar PV Permit (via General Building Permit) in other cities

Ak-Chin Indian Community, ArizonaApache Junction, ArizonaAvondale, ArizonaBenson, ArizonaBisbee, ArizonaBuckeye, ArizonaBullhead City, ArizonaCamp Verde, Arizona

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