Denver Solar Permit Guide
Denver solar projects can involve electrical, plumbing, zoning, battery, generator, and SolarAPP+ questions.
Solar Permit
Denver, Colorado
April 26, 2026
Permit takeaway
Denver states that all solar systems require an electrical permit, and solar hot water systems require a plumbing permit.
Zoning and placement
Denver says zoning review can apply when panels are not flush with the roof or when a generator or battery backup system is located outside.
Building and trade review
Roof access/pathway rules, battery storage, hot water systems, and system modifications should be checked before submitting.
Call before applying when
Call before applying if the project includes batteries, a generator, non-flush panels, a flat roof, detached structure, or solar hot water.
Documents to prepare
- Site plan or roof layout
- Electrical single-line diagram
- Module and inverter specifications
- Battery or generator details if included
- Plumbing details for solar hot water
Inspection planning
- Electrical inspection
- Plumbing inspection for solar hot water
- Final system inspection
- Utility/interconnection approval if required
Official sources
This guide is a planning summary. Always verify the current requirements with the local office before starting work.