Permitting Authorities / Gilpin County Community Development - Building Division
Do you need a permit to replace a roof in Gilpin County, CO?
Adopted code
Gilpin County Community Development - Building Division
Yes — a permit is required to replace a roof in Gilpin County, CO, issued by Gilpin County Community Development - Building Division. A building permit is required for roof replacement over 200 square feet; manufacturer specifications must be uploaded with the permit application. Roofing materials and installation must meet Class F/H or higher standards for local wind speeds. Applications, permits, and inspections are handled through the county's OpenGov online portal.
Jurisdiction
Gilpin County, Colorado
Contact
- url: https://gilpincounty.colorado.gov/departments-offices/community-development/building-division
- phone: 303-582-5831
Roofing permit required
Required
Contractor registration required
Required
Registration details
- license: All contractors performing work in Gilpin County must register with the Community Development Department before applying for permits or performing work. Non-state-regulated contractors (including roofers) must provide proof of an ICC exam passing score within the past three years or a valid license from another ICC jurisdiction in Colorado, plus liability insurance listing Gilpin County as certificate holder.
Permit process note
A building permit is required for roof replacement over 200 square feet; manufacturer specifications must be uploaded with the permit application. Roofing materials and installation must meet Class F/H or higher standards for local wind speeds. Applications, permits, and inspections are handled through the county's OpenGov online portal.
Inspection requirements
Inspections are performed on Mondays and Wednesdays. Requests must be made online through the permit in the OpenGov portal by 5 PM the business day before the requested inspection day; a 2-hour inspection window is posted in the portal the morning of the inspection.
Adopted code
Effective April 1, 2026, Gilpin County has adopted with local amendments the 2024 International Building Code, 2024 International Residential Code, 2024 International Fire Code, 2024 International Mechanical Code, 2024 International Property Maintenance Code, 2024 International Existing Building Code, 2024 International Energy Conservation Code, 2024 International Swimming Pool and Spa Code, 2023 National Electrical Code, the Colorado Plumbing and Fuel Gas Codes, the 2024 International Wildland-Urban Interface Code, and the 2025 Colorado Wildfire Resiliency Code.
Repair permit threshold
A building permit is required for roof replacement over 200 square feet in unincorporated Gilpin County. The Building Division's roofing requirements do not set a separate dollar-value threshold, only this area threshold; manufacturer specifications for the roofing system must be uploaded with the permit application regardless of size once the 200-square-foot threshold is crossed.
Wind design criteria
Gilpin County's Building Division requires that roofing materials and installation meet Class F or Class H wind-rating standards, or higher, for local wind speeds. Class F/H are wind-uplift classifications (the ASTM D3161/D7158 wind system), distinct from fire classification (Class A/B/C) or impact resistance (UL 2218 Class 1-4) — this is specifically a wind requirement. The county does not publish a single county-wide design wind speed; instead, applicants must submit a site-specific ASCE Hazard Tool report addressing wind exposure for Risk Category II, and manufacturer specifications for the roofing system must be uploaded with the permit application.
Sales & use tax
2.9% in unincorporated Gilpin County — state sales tax ONLY. Gilpin County itself levies NO county sales tax: it does not appear in DR1002's state-collected-county table at all ("If a county is not listed, that county does not have a sales tax"), and the County's own Clerk & Recorder Sales Tax Information page confirms this directly: "A resident of unincorporated Gilpin County will only pay the 2.90% for state sales tax," contrasting explicitly with the incorporated cities within the county (Central City and Black Hawk, both at 6.00% city rate on top of the same 2.90% state rate). No county-level construction-materials use tax exists for the same reason (no county sales/use tax structure at all).
The building permit authority for unincorporated Gilpin County, Colorado. Administers building permits, plan review, inspections, and building code compliance. Requires a permit for roof replacement over 200 square feet, requires contractor registration before work begins, and enforces the 2024 I-Codes with wildfire provisions effective April 1, 2026.
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