Butte County, California Building Permit Guide

Butte County runs from the Sacramento Valley floor into the Sierra foothills, with about 209,000 residents, and has run large wildfire-rebuild programmes in its foothill communities. Its Development Services Department is the building authority for the unincorporated areas and also issues building permits inside the cities of Biggs and Gridley; Chico, Oroville and the Town of Paradise run their own.

This guide covers the Development Services Department’s unincorporated-area role, Title 24 with county amendments, and the wildfire, rebuild and septic layers common across the foothills, and where city work goes instead.

This guide covers unincorporated Butte County and the cities of Biggs and Gridley, whose building permits the county issues. Chico, Oroville and the Town of Paradise each run their own permitting.

What requires a building permit in Butte County?

Local amendments and thresholds differ from one jurisdiction to the next, so an exempt list from a neighbouring city is not reliable — a project waved through in one place needs a full permit set in the next. An exemption from a building permit is never an exemption from zoning, the statewide energy or green-building codes, or an electrical or plumbing permit. Confirm scope with Development Services before work starts.

The statewide layers that apply everywhere

Several parts of Title 24 apply on top of the base building code and routinely catch projects owners assume are exempt: the California Energy Code (Part 6); CALGreen (Part 11), California’s mandatory statewide green-building code; and the accessibility provisions in Chapters 11A and 11B. Seismic design is built into the code statewide, and in fire-prone areas the California Wildland-Urban Interface Code (Title 24, Part 7, in force since 1 January 2026) and Cal Fire defensible-space requirements (Public Resources Code 4291) add a further layer. In unincorporated Butte County, the Development Services Department administers Title 24 with county amendments, and wildfire hazard, defensible space, rebuild processes and on-site septic review attach to many foothill and burned parcels.

California builds on one statewide code, Title 24, whose 2025 edition took effect on 1 January 2026; the editions in effect when the application is submitted apply, and cities and counties may adopt local amendments only with findings filed with the state (new residential amendments are largely frozen until June 2031). Title 24 and local amendments

Who handles permitting in Butte County?

The Development Services Department’s Building Division handles permitting, plan review and inspections for unincorporated Butte County and for the cities of Biggs and Gridley; Chico, Oroville and the Town of Paradise handle their own.

The Development Services Department is the authority for unincorporated Butte County and for Biggs and Gridley, working from its office at 7 County Center Drive, Oroville, with remote Building staff in Magalia and Berry Creek and applications through the Accela Citizen Access portal. Many parcels sit in fire-hazard zones with defensible-space and ignition-resistant-construction requirements, rural parcels add on-site septic review, and the department has dedicated wildfire-rebuild processes.

Confirm the jurisdiction from the parcel first; a project inside Chico, Oroville or the Town of Paradise files with that city’s or town’s department under its own code and counter, while a project in Biggs or Gridley comes to the county.

Permit types

Residential permits

Unincorporated residential work is permitted and inspected by the county under Title 24 and county amendments. Additions, decks, pools, solar and EV chargers need permits, fire-zone parcels carry defensible-space rules, rebuild parcels follow recovery processes, and rural parcels carry septic review. A CSLB-licensed contractor pulls the trade permits.

Commercial permits

Commercial, agricultural and multi-family work in unincorporated areas goes through county plan check against the California Building Code, the Energy Code and CALGreen. It requires CSLB-licensed contractors, stamped drawings on most projects, and wildland-urban-interface compliance in fire zones.

Licenses, trade classifications and design professionals

Practically, three credential layers appear on California projects: a CSLB license in the correct classification for the contractor pulling the permit; the specialty C-classifications for the electrical, plumbing and mechanical trades; and, on commercial and larger residential work, drawings stamped by a California-licensed architect or engineer. Confirm what Development Services requires for the specific building before filing.

Contractors are licensed statewide by the Contractors State License Board (Classes A, B, B-2 and C) for work of $1,000 or more or any permitted work; a city may also require a business licence or tax registration. Contractor licensing in California

Butte County permit costs and fees

Budget the county building permit and plan-check fees, separate trade permits, the state Building Standards and seismic surcharges, and wildfire, rebuild or septic review where it applies. The county publishes a valuation-based schedule; confirm it for your filing date.

California layers two uniform state surcharges — the Building Standards Administration fee and the Strong Motion Instrumentation seismic fee — on top of the local charges (Health and Safety Code 18931.6; Public Resources Code 2705). The building and plan-check fees themselves are local and change, and California law limits them to the reasonable cost of providing the service, so a figure from a neighbouring city is not reliable — ask Development Services for the schedule in force on your filing date.

Trade permits and who may pull them

Each trade follows its part of Title 24 and is done by a contractor with the matching CSLB licence (C-10 electrical, C-36 plumbing, C-20 HVAC), a Class B contractor where allowed, or an owner-builder. Trade licences in California

How to apply for a Butte County building permit

Review, corrections and what actually causes delay

In California, the first cause of delay is uncertainty over jurisdiction — filing with the county when a city should have it, or missing a local amendment on top of Title 24. After that come Title 24 energy and CALGreen documentation, a CSLB classification that does not match the scope, and, in fire or coastal areas, defensible-space or coastal-zone requirements that were not addressed up front. Build the plan-check time into the schedule and confirm the checklist with Development Services before filing.

A building permit carries a validity period and can expire if work does not start or stalls between inspections; confirm the expiry with Butte County on phased or delayed work. Permit validity in California

Inspections in Butte County

Where a permit is required, standard checkpoints include footing and foundation, framing, rough-in electrical, plumbing and mechanical, insulation and Title 24 energy, CALGreen measures, fire systems on commercial work, and final, with a certificate of occupancy before use. On issuance the county assigns the field inspector and the construction stages that must be inspected.

California inspections are made against the code editions in effect when the permit application was submitted (Health and Safety Code 18938.5), so the approved plans and any energy and green-building documentation need to be on site for the inspector to check against. Confirm the notice Development Services needs and schedule around its inspection windows.

Do not cover work before the required inspection has been approved. Keep the issued permit, the approved plans, product listings, Title 24 energy documentation and your correction responses available on site.

Butte County permit search and official resources

Permit records in California sit with the local authority that issued them. Where the Butte County Development Services Department is the authority for unincorporated Butte County, it holds the building permit, the inspection history and the certificate of occupancy. If you are buying, refinancing or renovating, confirm that past work was permitted rather than assuming it was — and confirm the code edition that was in force.

These are the primary sources behind this guide. Codes, fee schedules and procedures change — confirm the position for your filing date.

• Butte County Development Services
• California Building Standards Commission (Title 24)
• Contractors State License Board (CSLB)
• Cal Fire defensible space and fire hazard zones
• California Department of Housing and Community Development

Frequently asked questions

Who issues building permits in unincorporated Butte County?

The Development Services Department issues permits for the unincorporated areas and for the cities of Biggs and Gridley; Chico, Oroville and the Town of Paradise run their own departments.

Is wildfire-rebuild permitting handled differently?

Yes. The county has dedicated processes for wildfire-rebuild work and a Rebuild Advocate who guides owners through them; confirm the current requirements and any streamlined paths for rebuilds.

Does my project need wildfire review?

Much of the foothill area sits in fire-hazard zones with defensible-space and ignition-resistant-construction requirements; confirm before you file.

Do I need septic or groundwater review?

On rural parcels not served by sewer, on-site wastewater review commonly attaches to the building permit.

Do I need a local contractor registration?

Not a contractor licence: California licenses contractors statewide through the CSLB, and the licence must be active and carry the right classification. A city may still require a business licence or business tax registration (Government Code 37101), so ask the department.

How do I run a Butte County permit search?

The Development Services Department holds permit and inspection records for the unincorporated county, Biggs and Gridley, and the Accela Citizen Access portal shows permit status; Chico, Oroville and Paradise records sit with their own departments.

Simplify Butte County permitting with Alliance Permitting

Unincorporated Butte County turns on jurisdiction, wildfire and rebuild. Clearing the fire-zone and recovery questions before filing is most of the battle across the foothills.

Trusted by leading builders, developers, and national contractors — 21+ years of filing in the jurisdictions we write about.

Contractors and builders choose Alliance for Butte County because the work is done by people who have stood at the counter:

• We confirm whether the parcel is unincorporated or inside a city.
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• We confirm the CSLB classification matches the scope.
• We clear wildfire, defensible-space and septic review.
• We submit complete plan sets and track issuance and inspections.

Alliance Permitting is a permit documentation and submission company in California. We prepare your paperwork, file it correctly and coordinate with the permitting authority through issuance. We are not a contractor and we do not perform licensed plan review or inspections; that work stays with your licensed team and the jurisdiction.

This guide is provided by Alliance Permitting for general information about Butte County permitting. Requirements, fees, and procedures change; confirm details with the permitting authority before relying on them.