Littleton, CO Solar Energy: Panel Permits (2026)
Key Facts
- License required
- D20 Solar PV contractor or owner-permit
- Permit duty
- Obtain permit before any on-site work
- Height exception
- Solar arrays exempt from district height limit
- Setback exception
- Solar devices allowed inside required yard setbacks
- Penalty
- Up to $2,650 fine, up to 364 days jail
- Permit fees
- Set by City Council resolution, section 4-1-7
Summary
Installing solar photovoltaic panels in the City of Littleton requires a building permit and a licensed D20 Solar PV contractor under the city's contractor licensing chapter. The zoning code exempts rooftop and ground solar arrays from the district's maximum height limit and lets them sit inside required yard setbacks, so a properly designed system rarely needs a variance.
s. D20. Solar PV. The installation, alteration, and addition of solar photoelectric panels. ... 2. To obtain permits prior to any work being performed on-site; ... A. Performing work which requires a license or registration certificate, without having such a license or registration certificate, is hereby declared to be a criminal offense subject to the general penalty provisions under Section 1-4-1 of this Code. No building permit(s) shall be issued until a proper license(s) or registration certificate(s) is presented to the Division for the work to be done. ... Section 10-1-2.3 Height and Yard Exceptions ... B. Exceptions. ... 1. Height. The following appurtenances may exceed the prescribed district height limits provided the additional height is normally required for the proposed use; ... c. Solar array, collector, condenser, cooling tower, flue, stack, heat storage unit, or necessary mechanical equipment required for building functionality; ... C. Yard Exceptions. The space in a required front, side, or rear yard shall be open and unobstructed with the following exceptions: ... 11. Attached or detached solar energy devices;
Full Breakdown
Littleton's contractor licensing chapter, Title 3 Chapter 16, creates a dedicated 'D20. Solar PV' license class covering the installation, alteration, and addition of solar photoelectric panels (Code section 3-16-4(A)(4)(s)). Anyone contracting for that work in the City of Littleton must hold the D20 license or registration certificate from the Building Inspection Division before applying for a permit, and every license holder is required to obtain permits prior to any work being performed on-site under section 3-16-5(A)(2). The Division will not issue the building permit itself until the D20 license or certificate is on file, and any permit already issued is suspended if the license lapses under section 3-16-10(A).
Once permitted, the zoning code gives solar installations real dimensional relief that most accessory equipment does not get. 3(C)(11) lists attached or detached solar energy devices among the fixtures allowed to sit inside a required front, side, or rear yard setback that would otherwise have to stay clear. Fees for the building permit itself are set by City Council resolution under section 4-1-7 rather than fixed in the Code, so the exact dollar amount is confirmed at application. Homeowners performing their own work as the property owner remain subject to the same permit requirements as a licensed contractor, per section 3-16-3.
Violations & Fines
Performing solar installation work without holding the D20 license or registration certificate is a criminal offense under the Code's general penalty, section 1-4-1: a fine of up to $2,650, up to 364 days in jail, or both, with every day of continued violation a separate offense under section 3-16-10(A). The Building Inspection Division will not issue a permit without proof of licensure and will suspend any permit already issued if the contractor's license lapses.
Frequently Asked Questions
Do I need a permit to install solar panels in Littleton?
Can solar panels exceed my zoning district's height limit?
Can I put solar panels inside my required setback?
What happens if my solar contractor isn't licensed?
Sources & Official References
Other rules in Littleton
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