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Project Guide For Solar Panels

This guide is intended to provide you an overview of the permitting process for installing solar panels on the exterior of your house or duplex, for systems rated less than 10kW. Systems rated 10kW and above must be logged in for plan review and permitting.

Help Me Get Started . . .

Before you start your project, you need to know what regulations apply to your property and what factors may impact your project. You'll need to consider:

Historic Landmark Status

Any project that involves changes to the exterior of landmark structures or properties in historic landmark districts must be reviewed by Landmark Preservation staff before you begin. The appropriate zoning, building, curb cut, or revocable permits needed for the project will be issued only after design review has been completed and the project has been approved. To determine your property’s landmark status, use the DevelopDENVER tool to the right. Then, visit the Design Review web page for more information.


Zoning establishes standards for things such as the size and location of structures and acceptable uses for your property. Before you begin construction, you need to be sure your project is in compliance with the Denver Zoning Code. Use the DevelopDENVER tool to the right to determine the zoning for your property. In the results, click on your zone district for descriptions and definitions; then, click on your neighborhood context for more information on zoning in your area. 

NOTE: If your photovoltaic panels are flush-mounted per the definition in Section 13.3 of the Denver Zoning Code, no zoning permit is required.

Building Code

Denver Building Code provides minimum standards for building in order to safeguard public safety, health and welfare. The permitting and inspection process ensures that all home projects meet these standards and that all dwellings are safe and habitable at the time of construction.

Listed in the order they must be obtained. All permits must be in hand and at site before work may begin.

  1. Current City of Denver Contractor’s License/Homeowner’s Exam 
  2. Landmark Certificate of Appropriateness – if applicable. Visit the Design Review web page for more information.

The above must be in hand before you apply for the following:

For a complete list of required documentation for zoning review, including sample site plans, download the Residential Permitting Guide (PDF).

  1. Zoning Permit (Commercial Zoning) — required for Photovoltaic (PV) Systems with panels that are not flush-mounted, per definition in Section 13.3 of the Denver Zoning Code
  2. Commercial Electrical Review (Commercial/Multifamily Electrical Walk Through) – Once this review has been completed, staff will provide the information necessary to move on to Step 3.
    For the commercial electrical review, you will need two sets of plans that include:
    - Complete one-line diagram
    - Supporting calculations
    - Equipment catalog sheets

    NOTE: If you plan to install a PV solar system on your house or duplex that is rated 10 kW and above, you will need to provide all of the documentation above as well as the stamp and signature of a Colorado-licensed professional engineer on the one-line diagram and calculations. 

    You may use the Permit Process for PV System forms prepared by the Solar America Board for Codes and Standards to provide the required information for the commercial electrical review, which can be found on the board's website.

  3. #3 Electrical Permit (Quick Permit) – required for solar photovoltaic systems
  4. #4 Plumbing Permit (Quick Permit) – required for solar hot water systems

Sign in online or at the kiosk once for your zoning permit (Commercial Zoning).

Sign in online or at the kiosk once for commercial electrical review (Commercial/Multifamily - Electrical).

Quick Permits may be applied for by email. See For same day service, sign in online or at the kiosk once for two Quick Permits at a time. 

Estimate Fees
Zoning and Building permit fees are based on valuation of the work to be completed including the labor and materials. View the permit fee schedules to estimate the fees required for your project. Fees for Solar Panels are capped at $50 for all permits. There are no fees for Landmark review.

Pay Fees
Fees can be paid in person at our cashier on the 2nd floor of the Wellington Webb Building. We accept Visa, MasterCard and Discover Card, cash and personal checks at our counter.

To pay by mail, send a check to:
Development Services
Wellington Webb Municipal Building
201 W. Colfax Ave., 2nd Floor
Denver, Colorado 80202

All approved construction set of documents, permits and inspector signature card are to be available on site upon request.

Typical inspections for installation of solar panels include the following:

  • Rough Utilities (Electrical and Plumbing)
  • Final Utilities (Electrical and Plumbing)
    NOTE:  You must provide a ladder at the time of inspection for all roof mounted inspections. 
  • Zoning inspection required for PV systems with tilt-up panels on roof
  • NIS inspection required where PV roof panels are within 1 foot of the maximum height or where panels are located near bulk plane edge


NOTE:  The inspections listed above may vary depending on the complexity of your project. You will be advised as to which inspections your project requires through the permitting process and by your inspector.

Who Will Be Doing the Work?

Decide whether you plan to complete the project yourself or hire a licensed contractor to complete the job for you.

Do It Yourself

Do-It-YourselfYou may need to pass a Home owners exam  to demonstrate proficiency in specific trades in order to get a permit to do the work yourself. 

You will also need to meet a set of requirements established by the Denver Building Code and the Building Department Policy ADMIN 131.3 governing homeowner completed work.  This policy can be found on our Building Codes, Forms and Policies page. 


Contractors Use the Contractor license search to see if your contractor has obtained a contractor's license from the City and County of Denver. 


To view other considerations, see our Doing the Work Yourself page.

Home Projects

Every project is different.  Depending upon the complexity of your project, the permit requirements and inspection process may vary from the information presented in this guide.  If you have any questions, please contact us.


What you need to know for your project!

Enter your property address or street intersection:
View property details including zoning, landmark status, inspector districts and more.

Related Resources

Standards That Apply