Electrical Permit in Denver, CO
Permit Summary
Who Can Do the Electrical Work?
Homeowner Eligibility Rules
Denver allows a homeowner permit for an owner-occupier or legally authorized agent for work at a one-family dwelling or its accessory structures. The owner-occupier or agent must obtain the permit, pass the required homeowner exams, and perform the permitted work; an approved designated worker may assist, but a licensed Denver contractor may not act as the designated worker. The owner-occupier must own and occupy, or agree to own and occupy, the dwelling for at least 12 months after completion. Homeowner permits are limited to one address, and the owner-occupier or agent must wait five years from the last homeowner-permit issuance at one address before obtaining a homeowner permit at a separate address.
Contractor Rules
For permit-required professional electrical work, Denver requires electrical contractors to register with the Agency. The Denver code defines a registrant as a master electrician licensed by the State of Colorado and registered with Denver. Exceptions include qualifying owner-occupier work performed under the homeowner-permit provisions and public-utility work on the utility's own distribution equipment to the point of customer service.
Permit & Plan Review
Electrical Work Covered
Electrical permits cover many installations and alterations, including utility service installations and upgrades, panels and subpanels, wiring and rewiring, electric vehicle chargers, receptacles, lighting, appliances and equipment, temporary service, and qualifying solar photovoltaic and energy-storage work. The project scope, occupancy, service size, phase, and equipment determine whether the work can use a quick permit or requires plan review. Work that is exempt under the State-adopted Electrical Code or applicable Colorado law is exempt from Denver's electrical permit requirement.
Plan Review Rules
Electrical work that is not eligible for a quick permit requires plan review. For single-family and duplex structures, new, replacement, or upgraded services over 400 amps, and other electrical work where the service is over 400 amps, do not qualify for a quick permit. For multifamily and commercial projects, plan-reviewed scopes include photovoltaic systems, energy storage systems, feeders and raceways, transformers, grounding changes, distribution equipment, new/replacement/upgraded services of any rating, panels and subpanels, three-phase or over-400-amp temporary services, electric vehicle charging stations, and other electrical work not listed as quick-permit eligible. Unless Denver states otherwise for a specific scope, the submitted electrical plans must be signed and stamped by a professional electrical engineer and include a one-line diagram, load calculations, fault-current calculations, site and/or floor plans, scope narrative, code references, and a verifiable digital signature and stamp.
Quick / No-Plan Permit Rules
Denver offers no-plan-review electrical quick permits for listed scopes. For single-family, duplex, and garage work, the listed electrical scope is quick-permit eligible only on single-phase utility services rated 400 amps or less; examples include services and service upgrades up to 400 amps, panels and subpanels, wiring or rewiring, EV chargers, lighting and receptacles, and certain solar photovoltaic and energy-storage systems. Multifamily and commercial quick permits are limited to specified scopes such as single-phase temporary service up to 400 amps, irrigation-controller service up to 100 amps, limited small branch-circuit work, and certain like-for-like replacements. New buildings and additions in single-family, duplex, and IRC townhome projects require an issued Residential Construction Permit before the trade quick permit can be completed; qualifying alterations and repair/replacement work in existing buildings do not have that prerequisite.
Service, Panel & Utility Requirements
Service / Panel Rules
For single-family, duplex, and garage projects, a new service, service upgrade, panel, or subpanel can use the electrical quick-permit path only when the utility service is single-phase and rated 400 amps or less. New, replacement, or upgraded services over 400 amps require plan review, as does other electrical work where the service is over 400 amps. For multifamily and commercial projects, new, replacement, or upgraded services of any rating and panels or subpanels are not eligible for a quick permit. Meter or mast replacement without a change in conductor material or conductor size can qualify for a quick permit within Denver's listed conditions.
Service Reconnect Rules
For Xcel Energy service, the utility will not energize or set a meter on new, rewired, altered, or repaired wiring installations until required conditions are met, including receipt of an inspection release from the local public authority. Before a meter is installed on an existing service that has been rewired, altered, or repaired, Xcel requires the local inspection release. Services disconnected for more than 365 days must meet current installation requirements before reconnection, and Xcel evaluates the metering equipment. A disconnected meter may be reconnected only by an Xcel representative; Colorado temporary unmetered closed-loop service requires a local wiring permit and Xcel permission.
Low-Voltage Rules
Low-voltage requirements depend on the system. Under Denver's current code, access-control systems use a separate Access Control Permit and contractor-licensing path. Access-control circuits powered at more than 48 volts AC/DC, including hard-wired power supplies connected to the building electrical system, must be performed by an electrical registration contractor; fire-alarm interconnections must be performed by an electrical signal contractor or electrical registration contractor. Electrical work over 48 volts associated with an access-control system can be included in the Access Control Permit, but a new luminaire for required emergency lighting requires a separate electrical permit.
Utility Coordination Rules
Utility coordination is required when the project creates or changes electric service, involves meter or service equipment, requires reconnection or energization, or otherwise affects the utility connection. Xcel Energy's current standard requires an application for service and a local inspection release before a new electric service connection can be energized. Xcel advises customers with large or complicated electrical projects to contact its Builders Call Line before construction or equipment purchase. Denver quick-permit eligibility does not replace the electric utility's service and metering requirements.
Inspections & Permit Life
Electrical Inspection Stages
All permit-required electrical work is subject to Denver inspection and must remain accessible and exposed until approved. Denver requires approval at progressive stages of electrical-system installation, and a final inspection and approval are required before the completed construction is ready for occupancy or use. The exact inspection sequence depends on project scope. For access-control-system work, the current code specifically requires separate rough-in and final inspections for electrical work greater than 48 volts AC/DC.
Permit Expiration / Inspection Interval
A Denver construction permit may be voided if work is not commenced within 60 days after permit issuance, if work is suspended or abandoned for 60 days after commencement, or if no inspection is requested for 60 days. Before work recommences, new plans may be required and a new permit must be obtained, with fees based on the current schedule. A suspended permit may be re-established within one year if the causes of suspension are corrected, the same code year and printing remain in force, and the required fee is paid; otherwise a new permit application under the current code is required.
What You Need Before Applying
Requirements
Determine whether the scope qualifies for an electrical quick permit or requires plan review, then apply through Denver's e-permits system. Electrical work must comply with Denver's current 2025 Building Code administration and the 2026 National Electrical Code, which Denver adopts unamended. Electrical contractors must be registered with Denver unless an exception applies, including the qualifying homeowner-permit path. For new buildings and additions in single-family, duplex, and IRC townhome projects, an issued Residential Construction Permit is required before the electrical quick permit can be completed.
Exemptions
Denver's 2025 Building Code Section 130.3.2 states that no electrical permit is required for work exempt from permit requirements under the Electrical Code adopted by the State of Colorado or under applicable Colorado law. Other electrical work must follow the applicable Denver electrical permit path.
Required Documents
Work that qualifies for an electrical quick permit does not require plan review. For plan-reviewed electrical scopes, Denver generally requires engineered plans signed and stamped by a professional electrical engineer, including a one-line diagram, load calculations, fault-current calculations, site and/or floor plans, a scope-of-work narrative, code references, and a verifiable digital signature and stamp. Exterior quick-permit work on individual landmarks or buildings in historic districts also requires Landmark Preservation application materials, photos, and product or equipment information.