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§ 02
When a permit is required
Permit triggers and exempt work for Yolo County
Any owner or authorized agent doing construction, alteration, removal, occupancy change, or regulated building-system work must apply to the building official first. Additional grading, flood-hazard, planning, or zoning permits may also apply.
Exemptions are tied to code sections including CRC 105.2, CBC 105.2, and Yolo County Code 7-1.04
Electrical exemptions under CEC 89.101.3.3
Mechanical exemptions under CMC 104.2
Plumbing exemptions under CPC 104.2
Flood and small-grading exceptions under CBC Appendix J section J103.2
Examples of small permit-type items with lighter documentation include electrical service replacement, HVAC replacement, sewer line replacement, water heater replacement, and reroof or stucco-siding replacement subject to conditions
- Exempt Exemptions are tied to code sections including CRC 105.2, CBC 105.2, and Yolo County Code 7-1.04
- Exempt Electrical exemptions under CEC 89.101.3.3
- Exempt Mechanical exemptions under CMC 104.2
- Exempt Plumbing exemptions under CPC 104.2
- Exempt Flood and small-grading exceptions under CBC Appendix J section J103.2
- Exempt Examples of small permit-type items with lighter documentation include electrical service replacement, HVAC replacement, sewer line replacement, water heater replacement, and reroof or stucco-siding replacement subject to conditions
Note: Work may still require permits because of use or occupancy changes, grading or disturbance, flood hazard, or other agency-specific approvals. Always verify any exemption against the linked code sections.
Required documents
- Completed Application for Building Permit
- Permit type documentation for over-the-counter, rapid review, or full review submittals
- Location plan except for limited minor cases
- Plan sets in paper and PDF with signed plans and required supporting documents
- Air District form
- Land Use Review Survey
- Fire District fee form
- C and D plan review form
- School, service district, or agency fee materials
- Owner-Builder form when applicable
- Building code
- Yolo County Building Standards Code with California Building, Residential, Electrical, Mechanical, Plumbing, Fire, and Energy code references.
- Permit validity
- Permit expires if work is not commenced within 180 days or if work is suspended or abandoned for 180 days.
- Owner-builder
- The permit form supports owner-builder submissions and links an Owner-Builder form. County code also allows owner construction and repair under specific conditions for system work.
- Contractor requirements
- The application captures contractor and CSLB license information, and plans or design work often require a registered design professional signature or stamp.
Source: Yolo County Building Division (Building Inspection Services), Department of Community Services ↗
§ 03
Application process
Typical processing: No single turnaround target is posted. County process materials ask applicants to respond to review comments within about 6 weeks.
- 01 Confirm the project triggers a permit for construction, alteration, repair, occupancy change, or new systems under the county building standards.
- 02 Complete the Application for Building Permit and identify whether the project is over the counter, rapid review, or full review.
- 03 Prepare required submittal materials, including plans, specifications, calculations, site plans, checklists, and agency forms.
- 04 Submit the package in person, by mail with paper and digital files, or through the online portal.
- 05 Pay fees and address plan-review comments.
- 06 Track permit status after review and schedule inspections at each required stage before proceeding.
Typical processing time: No single turnaround target is posted. County process materials ask applicants to respond to review comments within about 6 weeks.
Source: Yolo County Building Division (Building Inspection Services), Department of Community Services ↗
§ 04
Fee schedule
Yolo County building permit fees
Fee type
Amount
01
Minimum permit fee
$149 minimum appears for reinstating an expired permit within one year, but the county does not publish a single universal minimum building permit fee across all permit classes.
02
Plan check fee
The master schedule includes plan-check percentages for some categories, such as 65% of the building permit fee for certain residential permits.
03
Permit fee formula
Fees use valuation-based charges, flat fees for common permit types, and hourly staff rates where needed.
04
Reinspection fee
Reinspection fee is listed in the master fee schedule with a 1.5-hour minimum and examples around $145 in the fee table extract.
05
Penalty (no permit)
Expired permits may require reapplication or reinstatement at half fees with a $149 minimum when requested within the allowed window.
Fee consistency and collection are handled through county systems, and many fees auto-populate in Clariti for final verification.
Fees change periodically. Confirm at the official fee schedule ↗ before budgeting.
§ 05
Required inspections
Scheduling and sequence
How to schedule
- (530) 666-8037 (phone)
- building.division@yolocounty.gov (email)
- Building Division counter (in_person)
- Scheduling deadline
- Inspection requests must be submitted by 2:00 PM the day before the inspection.
- Inspection hours
- Permit office hours are Monday-Thursday 8:00 AM-12:00 PM and 1:00 PM-4:00 PM, and Friday 8:00 AM-12:00 PM.
Typical sequence: Permit and inspection card must be available before each phase. No work may proceed beyond the current approved inspection stage, and related rough inspections may be combined when possible.
Source: Yolo County Building Division (Building Inspection Services), Department of Community Services ↗
§ 06
Frequently asked
Common questions about unincorporated Yolo County permits
01 Do I need a building permit in unincorporated Yolo County, CA? ▸
Any owner or authorized agent doing construction, alteration, removal, occupancy change, or regulated building-system work must apply to the building official first. Additional grading, flood-hazard, planning, or zoning permits may also apply.
02 How much does a building permit cost in unincorporated Yolo County, CA? ▸
Building permit fees in unincorporated Yolo County, CA are set by the local building department and vary by project type and valuation. The minimum permit fee is $149 minimum appears for reinstating an expired permit within one year, but the county does not publish a single universal minimum building permit fee across all permit classes.. Fees are calculated as: Fees use valuation-based charges, flat fees for common permit types, and hourly staff rates where needed.. Plan check fee: The master schedule includes plan-check percentages for some categories, such as 65% of the building permit fee for certain residential permits..
03 How do I apply for a building permit in unincorporated Yolo County, CA? ▸
To apply for a building permit in unincorporated Yolo County, CA, follow these steps: 1. Confirm the project triggers a permit for construction, alteration, repair, occupancy change, or new systems under the county building standards. 2. Complete the Application for Building Permit and identify whether the project is over the counter, rapid review, or full review. 3. Prepare required submittal materials, including plans, specifications, calculations, site plans, checklists, and agency forms. 4. Submit the package in person, by mail with paper and digital files, or through the online portal. 5. Pay fees and address plan-review comments. 6. Track permit status after review and schedule inspections at each required stage before proceeding.
04 How long does it take to get a building permit in unincorporated Yolo County, CA? ▸
Building permit processing times in unincorporated Yolo County, CA typically run No single turnaround target is posted. County process materials ask applicants to respond to review comments within about 6 weeks.. Timelines can vary based on project complexity and current department workload.
05 What work is exempt from building permits in unincorporated Yolo County, CA? ▸
Not all construction work requires a permit in unincorporated Yolo County, CA. The following work is generally exempt: Exemptions are tied to code sections including CRC 105.2, CBC 105.2, and Yolo County Code 7-1.04; Electrical exemptions under CEC 89.101.3.3; Mechanical exemptions under CMC 104.2; Plumbing exemptions under CPC 104.2; Flood and small-grading exceptions under CBC Appendix J section J103.2; Examples of small permit-type items with lighter documentation include electrical service replacement, HVAC replacement, sewer line replacement, water heater replacement, and reroof or stucco-siding replacement subject to conditions. Note: Work may still require permits because of use or occupancy changes, grading or disturbance, flood hazard, or other agency-specific approvals. Always verify any exemption against the linked code sections. When in doubt, confirm with the local building department before starting work.
06 How do I schedule a building inspection in unincorporated Yolo County, CA? ▸
Once your permit is issued and work reaches an inspection milestone, you can schedule a building inspection in unincorporated Yolo County, CA via: (530) 666-8037, building.division@yolocounty.gov, Building Division counter. Inspection requests must be submitted by 2:00 PM the day before the inspection..
last verified April 2026
source Yolo County Building Division (Building Inspection Services), Department of Community Services ↗
entry id permits/california/yolo/unincorporated
Educational reference. Permit rules and fees change — confirm current requirements directly with Yolo County Building Division (Building Inspection Services), Department of Community Services before applying. Jaspector is not legal advice.