Chico, California Plumbing Local Permit Ordinances and Codes

Chico, California Plumbing Permit Ordinances

In Chico, California, the City of Chico Building Division is the Authority Having Jurisdiction (AHJ) responsible for overseeing and enforcing plumbing permit ordinances. They ensure compliance with all applicable building, mechanical, energy, accessibility, plumbing, and housing codes and laws adopted by the city and the state.

The Building Division reviews permit applications, issues permits, conducts plan checks, and performs inspections to ensure code compliance.
They adopt and enforce codes based on the California Building Code, which is updated periodically. For example, the 2022 California Building Code is enforced, based on the 2021 International Residential Code (IRC).
Permits are generally required for any work involving electrical, plumbing, or structural changes. Minor repairs like replacing a sink faucet may not require a permit, but remodeling a bathroom or adding lighting typically does.
The city utilizes an online portal called eTRAKiT for permit services, including applying for permits and scheduling inspections.

Local Zoning and Fee Nuances in Chico

Chico's permit process includes specific considerations for zoning and fees:

Zoning: Finished basements used as living space may trigger specific zoning occupancy requirements, particularly if a bedroom is added or a separate dwelling unit is created. It is advisable to check specific project requirements.
Fees: Plumbing permit fees are established by the City of Chico and can vary based on the scope and type of work.
For residential new construction, additions, or remodels associated with a building permit, the plumbing fee is calculated as $0.06 per square foot of the dwelling, with a minimum fee of $150.00 and a maximum of $350.00.
For commercial and industrial projects, fees are based on the total building valuation, with a minimum fee of $150.00 and a maximum of $5,000.00.
Water heater replacements have a fee of $150.00 for the first unit and $25.00 for each additional unit.
Plumbing fixture replacements have a fee of $150.00 for the first three fixtures and $25.00 for each additional fixture. An additional $25.00 fee applies if DWV or water piping extension/replacement is required.
There is a minimum fee of $150.00 for any plumbing work requiring a permit.
The city also has state-mandated surcharges, such as the Strong Motion Instrumentation Program (SMIP) fees and imaging fees, which are a percentage of the building permit fee.
Fee schedules are subject to change, and it is recommended to consult the most current fee schedule available on the City of Chico's website or by contacting the Building Division directly.

Resources to Learn More

Because Chico is located within Butte County, the following broader county regulations may also apply to your project:

California, Butte County Plumbing Permit Regulations and County Ordinances for Unincorporated Areas

Butte County Plumbing Permit Requirements

In Butte County, California, plumbing permit requirements are primarily handled by the county's Building and Development Services Division. This division is responsible for ensuring that all construction and plumbing work complies with state and local building codes. For properties located in unincorporated areas of Butte County, the county's regulations apply directly. Homeowners and contractors must obtain the necessary permits before commencing any plumbing work, which typically includes new installations, significant alterations, or repairs to existing plumbing systems.

Permits are required for most plumbing projects, including new construction, additions, and significant remodels.
Specific requirements and inspections are mandated to ensure safety and code compliance.
Fees for permits vary based on the scope and estimated cost of the project.
Unincorporated areas fall under the direct jurisdiction of Butte County Building and Development Services.

Resources to Learn More

Butte County Building and Development Services

The following statewide building codes and regulations apply universally to all jurisdictions within California:

California Plumbing Legislation, Codes, and Guidelines

California Plumbing Code and Legislation

In California, plumbing standards are governed by the California Plumbing Code (CPC), which is Part 5 of Title 24 of the California Code of Regulations. Unlike many other states that adopt the International Plumbing Code (IPC), California bases its plumbing code on the Uniform Plumbing Code (UPC). The state integrates the UPC with specific California amendments to address unique regional requirements, such as seismic safety, water conservation, and drought management.

The California Building Standards Code is updated on a triennial cycle. As of April 2026, the 2025 California Plumbing Code is the current enforceable standard, having taken effect on January 1, 2026. These regulations apply to all new construction, major renovations, and plumbing system installations across residential, commercial, and industrial properties throughout the state.

Primary State Agencies

The regulatory framework for plumbing in California involves several key entities:

California Building Standards Commission (CBSC): The primary agency responsible for the formal rulemaking process, adoption, and publication of the California Building Standards Code (Title 24).
Department of Housing and Community Development (HCD): Holds authority over building standards specifically related to residential housing.
Contractors State License Board (CSLB): The agency responsible for licensing plumbing contractors (e.g., C-36 classification) to ensure that work is performed by qualified professionals.
Local Building Departments: While the state sets the minimum standards, local city and county jurisdictions are responsible for enforcement, permitting, and inspection. These local authorities may also adopt stricter local amendments to the state code.

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