Unincorporated Butte County

The Building Division states it administers permits, plan review, and inspections to enforce state and county building codes and ordinances. For residential projects, the County's submittal checklist says permits are required when buildings are constructed, altered, or improved. Work exempt from permits is listed separately in County form DBP-20.

• Exempt One-story detached accessory structures such as tool sheds, storage sheds, and playhouses up to 120 square feet, if no utilities are installed and zoning setbacks are met
• Exempt Non-masonry fences up to 7 feet high; masonry fences up to 6 feet high; zoning rules still apply
• Exempt Retaining walls up to 4 feet high if not supporting surcharge and not impounding certain liquids
• Exempt Water tanks on grade up to 5,000 gallons with height-to-width ratio not exceeding 2:1
• Exempt Sidewalks and driveways not more than 30 inches above adjacent grade, not over a basement or story below, and not part of an accessible route
• Exempt Painting, papering, tiling, carpeting, similar finish work, and cabinets or countertops in R-3 occupancy
• Exempt Above-ground prefabricated pools accessory to R-3 occupancy that are under 24 inches deep and not greater than 5,000 gallons
• Exempt Shade cloth structures for nursery or agricultural uses, excluding service systems
• Exempt Playground equipment accessory to detached one- and two-family dwellings
• Exempt Certain small window awnings and nonfixed movable fixtures or partitions
• Exempt Detached R-3 decks not over 200 square feet, not more than 30 inches above grade, not attached to the dwelling, and not serving an exit door
• Exempt Minor electrical repairs, temporary testing systems, and agricultural water pumps used solely for agricultural purposes
• Exempt Portable heating, ventilation, or cooling appliances and limited minor gas or mechanical repairs
• Exempt Minor plumbing leak or stoppage repairs that do not involve concealed pipe replacement or fixture, valve, or pipe rearrangement

Note: Butte County's exemption form states exemptions do not authorize work that violates current code or other laws. Utility work can still trigger permit requirements, and exempt structures still must satisfy zoning and similar site constraints.

Building code

Effective January 1, 2026, applications submitted after December 31, 2025 at 3:00 pm are reviewed under the 2025 California Building Standards Codes, including the California Building, Residential, Mechanical, Electrical, Plumbing, Energy, Fire, Green, Historical, and Existing Building Codes. County ordinances and local requirements also apply.

Permit validity

Issued building permits expire 1 year from issuance. If work has begun and at least one inspection occurred in the prior year, the permit may qualify for renewal if renewed within 30 days of expiration. Applications that are filed but not issued expire 1 year after application if there is no activity and are not renewable.

Owner-builder

Owner-builders may apply, but the property owner must complete the County's owner acknowledgment form before issuance. County guidance explains owner-as-worker, owner-as-contractor, and owner-as-employer risks and responsibilities.

Contractor requirements

Licensed contractors or their authorized agents may apply. If a contractor is using an agent, the County requires a contractor authorization letter including the contractor's license number. For contractor-issued permits, proof of current contractor license and workers' compensation insurance is required at issuance.

Source: Butte County Department of Development Services, Building Division ↗

1. 01
   Confirm the parcel is in unincorporated Butte County and check zoning, flood, and fire-area constraints with the parcel lookup and zoning tools.
2. 02
   Gather the required application package. For typical residential work, Butte County requires a completed building permit application, plan sets, site plan, and supporting documents such as structural calculations, Title 24 energy documents, special inspection forms, and debris forms when applicable.
3. 03
   Submit through the Accela Citizen Access portal after creating an account, or submit in person or by email to dsbuilding@buttecounty.net.
4. 04
   Pay plan check and permit fees. The County notes that other departments may add related fees depending on the project and location.
5. 05
   Respond to plan-check corrections if issued, then complete any issuance prerequisites such as contractor license/workers' compensation proof, school fees where applicable, and any outside-agency approvals.
6. 06
   After permit issuance, keep approved plans on site, request inspections at required stages, and obtain final approval before occupancy or use.

Typical processing time: Butte County does not publish a guaranteed turnaround. On the Building page, the live plan-check queue viewed March 21, 2026 showed single-family, commercial, mobile home, accessory, and certain solar plans at about 3 weeks, with re-checks at about 2 weeks.

Source: Butte County Department of Development Services, Building Division ↗

Online payments can be made through ACA after account creation. The County also accepts payment in person or by mailed check to 7 County Center Drive, Oroville, CA 95965.

Fees change periodically. Confirm at the official fee schedule ↗ before budgeting.

• Accela Citizen Access (online)
• (530) 552-3699 (phone)
• dsbuilding@buttecounty.net (email)

Time windows

The Building page says applicants can use the inspection schedule to find the 2-hour window and inspector name. The inspection page notes times are estimated and inspectors may arrive up to 1 hour earlier or later than the posted time.

Typical sequence: Typical residential stages commonly include footing or foundation, slab or underfloor, rough framing, plumbing, electrical, mechanical, and final inspection. Exact required inspections vary by permit scope.

Source: Butte County Department of Development Services, Building Division ↗