Colorado permits
Do you need a permit in Colorado?
Colorado has no statewide residential building code; adoption and enforcement are by municipality or county. Denver, Boulder, Colorado Springs, and Fort Collins have full building departments; mountain and rural counties vary. There is no statewide GC license, though many municipalities require local registration. Electrical is licensed at the state level; plumbing is state-licensed.
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These are statewide ranges. Get your exact Colorado cost for your zip code and project size.
Can a homeowner pull the permit?
Yes, in most cases. Owner-occupied primary residences. State-licensed electrician/plumber generally required for covered work even when the homeowner pulls the permit.
Where to file: City or county building department. Denver (e-permits), Boulder, Colorado Springs have online portals. Mountain towns may have seasonal staffing. Plan review 1-4 weeks.
Permits by trade in Colorado
| Trade | When required | Citation | Typical fee | DIY? |
|---|---|---|---|---|
| Plumbing | In-wall work, fixtures, water heater, gas | CO Examining Board of Plumbers | $75-$250 | No |
| Electrical | New circuits, panel, service upgrade, EV charger | CO Electrical Board; NEC | $75-$250 | Conditional |
| Mechanical (HVAC) | Furnace/AC, ductwork, refrigerant | Local mechanical code | $75-$250 | No |
| Building (structural) | Additions, structural mods, decks | IRC as adopted | $150-$800 | Yes |
| Roofing | Re-roofs (most), hail repair | Local jurisdiction | $100-$300 | Yes |
| WUI / wildfire | Foothill + mountain WUI zones | Local WUI code | $100-$400 | Yes |
Hover a Conditional or No entry for the homeowner rule. Always confirm with your local building department, since requirements vary by jurisdiction.
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A Project Blueprint gives you the materials list, tool inventory, Colorado permit steps, and a step-by-step build sequence, calibrated to your zip. Human-reviewed before delivery.