County Building Permits
Gilpin County, CO - 2026 Building Permit Guide
How to apply for a building permit in unincorporated Gilpin County, Colorado. Permit authority, application steps, fees, and inspection requirements.
Permit Authority
unincorporated Gilpin County only; county staff note they do not handle incorporated city permits
- Department
- Gilpin County Community Development, Building Division
- Address
- Gilpin County Courthouse Annex, 492 Main St, PO Box 338, Black Hawk, CO 80422
- Phone
- 303-582-5831
Online Permit Portal
Platform: OpenGov • Account required: Yes • Submission: Online only
Application Process
- Start with zoning / development review if your project has land use impacts, then submit through the OpenGov portal
- County says to allow up to 2 business days for a response from building officials
Source: Gilpin County Community Development, Building Division
General Requirements
Permit required when work is regulated by the adopted building codes or local county rules
- Building code
- ICC International Residential Code 2018; ICC International Building Code 2018; ICC International Mechanical Code 2018; ICC Energy Conservation Code 2018; ICC International Fire Code 2018; ICC International Plumbing Code 2018; ICC International Fuel Gas Code 2018; National Electric Code 2020
- Contractor requirements
- State-licensed trades still apply for plumbing and electrical work; county page also expects permit applicants to coordinate inspections through the portal
Work That Does NOT Require a Permit
Contact the Gilpin County Community Development, Building Division to confirm whether your project requires a permit before starting work.
Inspections
How to Schedule
- Portal messages function (portal)
Additional Resources
- Building code: ICC International Residential Code 2018; ICC International Building Code 2018; ICC International Mechanical Code 2018; ICC Energy Conservation Code 2018; ICC International Fire Code 2018; ICC International Plumbing Code 2018; ICC International Fuel Gas Code 2018; National Electric Code 2020
- Zoning information: View zoning info
- County building page
- County permit portal
- License lookup guide: Colorado Contractor License Requirements
- Contract template: Colorado Homeowner-Contractor Agreement
- Colorado hub: Colorado Contractor License & Permit Hub
Information on this page was last verified: March 2026. Permit rules and fees change — confirm current requirements directly with the Gilpin County Community Development, Building Division before applying.
Frequently Asked Questions
Gilpin County Building Permit FAQ
- Do I need a building permit in unincorporated Gilpin County, CO?
- Permit required when work is regulated by the adopted building codes or local county rules
- How do I apply for a building permit in unincorporated Gilpin County, CO?
- 1. Start with zoning / development review if your project has land use impacts, then submit through the OpenGov portal 2. County says to allow up to 2 business days for a response from building officials
- How do I schedule a building inspection in unincorporated Gilpin County, CO?
- Inspections can be scheduled via: Portal messages function.
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