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Rooftop Solar Photovoltaic (PV) Permit in Lyons, Colorado

Required for solar photovoltaic system installations in Lyons. Governed by the IRC and NEC Articles 690 & 705, per the Town's dedicated Solar Submittal Requirements (October 2025). Flat fees apply, distinct from the general valuation-based electrical fee schedule.

Verified 2026-07-06 · Source

When you need this permit

  • Governed by the IRC and NEC Articles 690 (Solar PV Systems) and 705 (Interconnected Electric Power Production Sources)
  • A professional engineer's seal/signature is required for all non-single-family/duplex PV installations, and for single-family/duplex installations of 10kW or more or that include generator/battery backup provisions
  • A structural engineer's stamped letter is required for ALL projects (residential and commercial), confirming the existing structure can support the PV system per current code
  • All PV installations require a Town-supplied production meter measuring direct PV output only
  • Detailed one-line diagram, conductor ampacity calculations (NEC 690.8), equipment grounding conductor sizing (NEC 690.43/690.45), and rapid-shutdown compliance (NEC 690.12) required at submittal
  • A qualified person must be present at the PV electrical inspection: for residential systems 200A or less, a licensed master/journeyman electrician, a residential wireman, or a NABCEP-certified solar installer (for rapid-shutdown testing only); for residential systems over 200A and all IBC structures, a licensed master or journeyman electrician only

Required documents

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Fee schedule

Solar Permit Fee — ResidentialTown of Lyons Building Permit Fees PDF, updated 6.16.25
$500
Solar Permit Fee — Commercial
$1,000

Review timeline

Plan review
Not published — contact the department

How long did your Rooftop Solar Photovoltaic (PV) Permit permit actually take in Lyons?

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

Inspection process

  1. 1

    Framing (if structural enhancements required)

    Required for both residential and commercial projects when structural upgrades are part of the PV installation

  2. 2

    Rough Electrical

    Conduit runs, wire sizing, and disconnect placement before cover

  3. 3

    Final Electrical Inspection

    Racking, roof penetrations, and electrical connections verified; rapid shutdown system tested with the inspector present; customer must provide a ladder for roof-mounted components

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

Tips

  • Lyons' solar fee is a flat $500 residential / $1,000 commercial charge — a simpler, flat structure than the size/valuation-based electrical fee schedule used for other electrical work.
  • A structural engineer's stamped letter is required for EVERY PV project in Lyons, residential or commercial, regardless of system size — budget for this upfront rather than assuming small residential systems are exempt.
  • If your rapid-shutdown system is on the DC side, a NABCEP-certified installer can test it at final inspection (in addition to any licensed electrician) — but AC-side rapid shutdown testing must be done by a licensed electrician. Contractor

Frequently asked questions

A structural engineer's stamped letter confirming the structure can support the PV system is required for ALL residential and commercial PV projects in Lyons. A separate professional electrical engineer's seal on the electrical design itself is only required for non-single-family/duplex installations, or single-family/duplex systems of 10kW or more or that include a generator/battery backup.

In Lyons, the published Solar Permit Fee — Residential is: $500. Additional published fees: Solar Permit Fee — Commercial — $1,000. These are the jurisdiction's own published figures — see the fee schedule table and source citations on this page.

Lyons does not publish a plan-review timeline for this permit. Contact Town of Lyons Planning and Building Department (permit processing, plan review, and inspections contracted to SAFEbuilt) at 303-823-6622 ext. 25 (Town Planning and Building Director); 970-545-3512 (SAFEbuilt Permit Technician); 970-545-3555 (SAFEbuilt Chief Building Official); 303-774-0454 (Inspection Request Line) for current turnaround.

You'll need: Solar/Electrical Permit Application; Two complete sets of PV design package; Structural Engineer Letter. See the required-documents checklist on this page for details on each.

Lyons requires 3 inspection(s) for a rooftop solar photovoltaic (pv) permit, in order: Framing (if structural enhancements required), Rough Electrical, Final Electrical Inspection. Schedule each through Town of Lyons Planning and Building Department (permit processing, plan review, and inspections contracted to SAFEbuilt) (303-823-6622 ext. 25 (Town Planning and Building Director); 970-545-3512 (SAFEbuilt Permit Technician); 970-545-3555 (SAFEbuilt Chief Building Official); 303-774-0454 (Inspection Request Line)).

Apply through Town of Lyons Planning and Building Department (permit processing, plan review, and inspections contracted to SAFEbuilt) at 432 5th Avenue, Lyons, CO 80540 (PO Box 49). Phone: 303-823-6622 ext. 25 (Town Planning and Building Director); 970-545-3512 (SAFEbuilt Permit Technician); 970-545-3555 (SAFEbuilt Chief Building Official); 303-774-0454 (Inspection Request Line), email: Lritchie@townoflyons.com (Lisa Ritchie, Planning and Building Director); dtoberman@safebuilt.com (Danielle Toberman, Permit Technician); tmoroney@safebuilt.com (Tim Moroney, Chief Building Official). Office hours: Monday-Thursday 8:00 a.m.-4:30 p.m.; Friday 8:00 a.m.-noon; closed holidays. Town of Lyons main line 303-823-6622.. Official information: https://www.lyonscolorado.com/834/Building-Department.

Lyons, Colorado has adopted: 2021 International Building Code (IBC) — currently in effect per the Town of Lyons Building Department page and the Town's published Adopted Codes flyer; 2021 International Residential Code (IRC); 2021 International Plumbing Code (IPC); 2021 International Mechanical Code (IMC); 2021 International Fuel Gas Code (IFGC); 2021 International Energy Conservation Code (IECC) — the Town's 2025 Residential Submittal Checklist explicitly requires '2021 IECC Energy Code compliance for the specific home being proposed' via REScheck or an Energy Compliance Report; 2021 International Fire Code (IFC); 2021 International Property Maintenance Code (IPMC); 2021 International Existing Building Code (IEBC); 2023 National Electrical Code (NEC); Transition note: the Town of Lyons Building Department page (fetched 2026-07-06) states the 2021 ICC series and 2023 NEC apply 'until July 1, 2026,' with a 2024 ICC series adopted to take effect July 1, 2026. As of this file's lastVerified date (2026-07-06, five days after that effective date), the Town's own Adopted Codes flyer (townoflyons.com/DocumentCenter/View/932/Lyons-Design-Criteria) and Building Department page still list the 2021 series/2023 NEC as the current codes with no updated flyer found reflecting the 2024 series live — recommend confirming directly with SAFEbuilt/the Building Department (970-545-3555) whether the 2024 ICC series has been operationally rolled out before finalizing a code analysis for any permit filed on or after 2026-07-01.; State of Colorado Wildfire Resiliency Code (Ordinance 1210) — effective July 1, 2026, adopted townwide for Class 1 and Class 2 requirements applicable to new commercial/residential construction and qualifying alterations to existing structures (roof replacement 25%+, exterior wall replacement 25%+, additions adding 500+ sq ft, and new/replacement fences or decks); per the Town of Lyons Wildfire Resiliency Code Requirements page.. Local amendments apply — see the Lyons overview page for the full list.

Sources & verification

Verified against official sources. Last reviewed 2026-07-06.

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

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