Colorado permit requirements
Each county and city in Colorado runs its own permit office with its own thresholds, fees, and portals. Use the links below to find the office and requirements for your project.
Building code in Colorado
No statewide residential building code; home rule, adopted locally. Counties and cities adopt their own codes, typically a version of the International Residential Code (IRC).
Administered by Local county or city building department.
Colorado is largely home rule for building codes. The adopted edition varies by jurisdiction.
Most local permit thresholds derive from this code. See our sources and standards.