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When a permit is required
Permit triggers and exempt work for Boulder County
County issues building permits for construction in unincorporated Boulder County and publishes separate residential-construction guidance and easy-building-permit pathways.
Note: Public-facing county landing pages reviewed did not provide a short consolidated exempt-work list. Confirm exemption status with county staff before proceeding without permit, especially for wildfire, grading, floodplain, access, or OWTS-triggering scopes.
- Application
- Plans
- Location and access information
- Project-specific engineering, zoning, wildfire, floodplain, septic, or other supporting materials
- Building code
- County publishes building code amendments effective June 6, 2022 and related county BuildSmart and wildfire-related requirements.
- Permit validity
- Not clearly summarized on the main public pages reviewed; verify current expiration rules against county code amendments.
- Owner-builder
- Not clearly summarized on the main public landing pages reviewed.
- Contractor requirements
- Boulder County contractor licensing is handled separately by the county; state plumbing and electrical licensing also applies.
Source: Boulder County Building Safety and Inspection Services, Community Planning & Permitting ↗
Application process
Application → plan check → issuance → inspection → final
- 01 Determine whether the project is in unincorporated county jurisdiction and review county building publications and checklists.
- 02 Prepare the permit application, plans, site information, and any required access, grading, wildfire, floodplain, septic, or engineered reports.
- 03 Submit through county building permit workflows or EZBP if eligible.
- 04 Address plan-review comments and satisfy related county approvals.
- 05 Pay permit fees and keep permit documents on site.
- 06 Schedule required inspections, submit required engineer letters and surveys, and obtain final approval.
Source: Boulder County Building Safety and Inspection Services, Community Planning & Permitting ↗
Fee schedule
Boulder County building permit fees
County permit fees may be collected in stages beginning with application deposit.
Fees change periodically. Confirm at the official fee schedule ↗ before budgeting.
Required inspections
Scheduling and sequence
- County inspection scheduling tools (online)
- buildinginspectors@bouldercounty.gov (email)
- Inspection hours
- Public office hours 8 a.m. to 3 p.m. Monday, Wednesday, Thursday and 10 a.m. to 3 p.m. Tuesday; virtual service hours 8 a.m. to 4:30 p.m. Monday, Wednesday, Thursday and Friday and 10 a.m. to 4:30 p.m. Tuesday
Typical sequence: County-required staged inspections, with some caisson, footing, foundation-wall, and structural-framing inspections allowed by qualified Colorado-licensed engineer, then finals
Day-of-inspection cancellations cannot be made by phone or text; engineer reports must be emailed to EZBP before rough inspections where required
Source: Boulder County Building Safety and Inspection Services, Community Planning & Permitting ↗
Frequently asked
Common questions about unincorporated Boulder County permits
01 Do I need a building permit in unincorporated Boulder County, CO? ▸
02 How much does a building permit cost in unincorporated Boulder County, CO? ▸
03 How do I apply for a building permit in unincorporated Boulder County, CO? ▸
04 How do I schedule a building inspection in unincorporated Boulder County, CO? ▸
Educational reference. Permit rules and fees change — confirm current requirements directly with Boulder County Building Safety and Inspection Services, Community Planning & Permitting before applying. Jaspector is not legal advice.