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Solar PV Permit in Boulder, Colorado

Required for installation of rooftop or ground-mounted solar photovoltaic systems in the City of Boulder. Solar PV is processed as an Electrical Permit (not a separate solar-specific permit category); small roof-mounted systems under 10 kW are typically eligible for over-the-counter processing when the application package is complete. Solar thermal (solar water heating) is processed separately as a Mechanical Permit.

Verified 2026-06-30 · Source

When you need this permit

  • All solar PV installations require an Electrical Permit; solar thermal systems require a Mechanical Permit
  • Systems under 10 kW roof-mounted are typically eligible for over-the-counter/expedited issuance with a complete application
  • Documentation must include PV system capacity in watts and system type (stand-alone, grid-tied, or hybrid)
  • Location of all disconnects and array layout with required minimum access/pathways per the applicable Fire Code section must be shown
  • An engineer's evaluation of the existing roof structure's dead-load capability (referencing required wind and snow load for the site) is required
  • Applicants are encouraged to discuss the proposed installation with a Project Specialist at the Planning & Development Services Center before submitting
  • Photovoltaic permits can be submitted online via the CSS Portal

Required documents

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Fee schedule

Photovoltaic System Permit Fee — Residential2026 Schedule of Fees, Electrical Permit Fees — Photovoltaic System Permit Fee
$69.60
Photovoltaic System Permit Fee — Nonresidential and Multifamily
$139.20

Review timeline

Plan reviewTypical estimate — confirm current times with the Boulder building department
~0–5 business days

How long did your Solar PV Permit permit actually take in Boulder?

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

Inspection process

  1. 1

    Rough Electrical

    Conduit runs, wire sizing, disconnect placement before cover

  2. 2

    Final — Structural / Racking and Electrical

    Panel mounting, racking attachment, roof penetration sealing, and all electrical connections verified

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

Tips

  • Boulder charges a flat, low Photovoltaic System Permit Fee ($69.60 residential / $139.20 nonresidential/multifamily) under the Electrical Permit Fees table — this is a notably simple/low fee compared to the valuation-based building permit fee schedule.
  • Systems under 10 kW roof-mounted are typically over-the-counter eligible; larger or ground-mounted systems may require additional review — confirm with a Project Specialist before applying.
  • Roof structural adequacy for the added PV dead load must be evaluated against Boulder's site-specific wind (150/165 mph) and snow load design criteria.

Frequently asked questions

Boulder requires a solar pv permit for: All solar PV installations require an Electrical Permit; solar thermal systems require a Mechanical Permit; Systems under 10 kW roof-mounted are typically eligible for over-the-counter/expedited issuance with a complete application; Documentation must include PV system capacity in watts and system type (stand-alone, grid-tied, or hybrid); Location of all disconnects and array layout with required minimum access/pathways per the applicable Fire Code section must be shown; An engineer's evaluation of the existing roof structure's dead-load capability (referencing required wind and snow load for the site) is required; Applicants are encouraged to discuss the proposed installation with a Project Specialist at the Planning & Development Services Center before submitting; Photovoltaic permits can be submitted online via the CSS Portal. If your project isn't listed, confirm with City of Boulder Planning & Development Services at 303-441-1880 before starting work.

Boulder charges a flat Photovoltaic System Permit Fee of $69.60 for residential systems and $139.20 for nonresidential/multifamily systems, per the 2026 Schedule of Fees. Solar PV is permitted as an Electrical Permit category, not a separate solar-specific permit type.

Plan review for a solar pv permit in Boulder typically runs 0–5 business days. This is an estimate, not a published figure — confirm current review times with City of Boulder Planning & Development Services at 303-441-1880.

You'll need: Electrical Permit Application — Photovoltaic (CSS Portal); Roof Structural Evaluation; Equipment / Array Layout Plan. See the required-documents checklist on this page for details on each.

Boulder requires 2 inspection(s) for a solar pv permit, in order: Rough Electrical, Final — Structural / Racking and Electrical. Schedule each through City of Boulder Planning & Development Services (303-441-1880).

Apply through City of Boulder Planning & Development Services at 1101 Arapahoe Avenue, Boulder, CO 80302. Phone: 303-441-1880, email: PDSpermitadmin@bouldercolorado.gov. Office hours: Tuesday–Friday, 10:00 a.m.–4:00 p.m.. Official information: https://bouldercolorado.gov/services/building-permits-and-inspections.

Boulder, Colorado has adopted: 2024 International Building Code (IBC) family — City Council adopted the 2024 International Code Council (ICC) suite of codes with local amendments on March 20, 2025 (Ordinance 8684); effective August 1, 2025; local amendments codified in Title 10 of the Boulder Revised Code; 2024 International Residential Code (IRC) — part of the 2024 ICC suite adopted March 20, 2025, effective August 1, 2025, with Boulder amendments in BRC Title 10; 2024 International Mechanical Code (IMC) — part of the 2024 ICC suite, effective August 1, 2025; 2024 International Plumbing Code (IPC) — part of the 2024 ICC suite, effective August 1, 2025; 2024 International Fuel Gas Code (IFGC) — part of the 2024 ICC suite, effective August 1, 2025; 2024 International Fire Code (IFC) — part of the 2024 ICC suite, effective August 1, 2025; 2024 City of Boulder Energy Conservation Code (CoBECC) — Boulder's own locally-amended energy code (not a straight IECC adoption), effective December 1, 2024; published on ICC Digital Codes as COBECC2024P1; mandatory-measures checklist now required to be integrated into commercial/multifamily plan sets; 2023 NFPA 70 National Electrical Code (NEC), as amended by the City of Boulder — effective August 1, 2023; amendments in BRC Title 10; 2021 International Wildland-Urban Interface Code (IWUIC) — applies to properties in Boulder's designated wildland urban interface zone per the city's Structure Protection Plan / Wildland Fire program (edition as referenced in Boulder's Zoning and Permitting FAQ, Oct. 2020; confirm current edition at time of application). Local amendments apply — see the Boulder overview page for the full list.

No. Solar thermal (solar water heating) systems are permitted as a Mechanical Permit ($69.60 residential / $139.20 nonresidential-multifamily under the Solar Thermal System fee), while rooftop solar photovoltaic systems are permitted as an Electrical Permit.

Sources & verification

Verified against official sources. Last reviewed 2026-06-30.

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

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Solar PV Permit in other cities

Akron, ColoradoAlamosa, ColoradoArvada, ColoradoAspen, ColoradoAult, ColoradoAurora, ColoradoAvon, ColoradoBasalt, Colorado

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