California Building Department 2026: Permits, Inspections & Services

How to Find the Correct California Building Department

The most important first step is confirming which government has permitting jurisdiction over the property. A mailing address can name a nearby city even when the parcel is actually in an unincorporated county area.

1. Confirm the project address.
   Use the exact street address and, when available, the assessor parcel number (APN). This prevents confusion where city boundaries and postal addresses do not match.
2. Determine whether the property is inside an incorporated city.
   If it is within city limits, the city’s Building & Safety, Building Division, Community Development, Development Services or similarly named office normally handles the permit.
3. If the property is unincorporated, use the county.
   The county building or planning department commonly serves unincorporated areas. Do not automatically use the county merely because the property is geographically inside that county.
4. Confirm the department’s service area.
   Before creating an online account or uploading plans, verify that the official page states that the department serves your property location.
5. Check for separate planning, fire or public-works review.
   A building permit does not replace zoning, grading, encroachment, fire, utility or other approvals that may apply.

Which California Agency Handles Your Project?

Common Building Permits in California

Permit names vary by jurisdiction, but local building departments commonly process several of the following project types.

How to Apply for a California Building Permit

There is no single statewide application portal for ordinary local building permits. Once you identify the correct city or county, this workflow covers the steps most applicants should expect.

1. Define the exact scope of work.
   Write down what will be built, removed, relocated, replaced or altered. Include structural and electrical/plumbing/mechanical changes.
2. Check planning and zoning first.
   Confirm use, setbacks, height, lot coverage, parking, historic restrictions and other land-use rules before paying for detailed construction plans when those rules could affect the design.
3. Select the correct permit type.
   Use the local department’s project list or permit portal. Larger projects may require a building permit plus separate trade or related agency approvals.
4. Prepare plans and supporting documents.
   Upload files in the department’s required PDF format, naming convention, sheet size and organization.
5. Submit the application and pay initial charges.
   Save the application or permit number immediately; you will normally need it for plan review, payments and inspections.
6. Respond to plan-check comments.
   Review every correction, revise the affected plans and provide a clear response showing where each correction was addressed.
7. Wait for issuance before starting regulated work.
   Approval of planning or plan review alone does not necessarily mean a construction permit has been issued.
8. Keep approved documents at the job site.
   Follow the permit’s required inspection sequence and obtain final approval when work is complete.

Documents You May Need Before Applying

The exact submittal varies by project, but preparing the following information before opening the permit portal can prevent avoidable delays.

• Property address and assessor parcel number when requested.
• Clear description and valuation of the proposed work.
• Site plan showing property lines, structures and proposed work.
• Floor plans and exterior elevations for applicable projects.
• Structural plans, calculations and details when required.
• Electrical, plumbing and mechanical information where those systems change.
• California Energy Code compliance documents when applicable.
• CALGreen documentation for applicable construction.
• Product specifications or equipment information where required.
• Owner, applicant, architect/engineer and contractor information.
• Contractor license information where licensed contracting applies.
• Planning, fire, public works or utility approvals when required by the local process.

Do not upload a generic plan package to every jurisdiction. Local departments can publish their own checklists, electronic-plan standards and supplementary forms.

California Building Permit Fees & Processing Times

There is no single statewide price for a normal city or county building permit. Local agencies adopt their own fee schedules, and the final amount can depend on construction valuation, square footage, permit type, plan review and other services.

How long does a building permit take?

California does not impose one universal processing time for every local permit. Simple permits may qualify for streamlined or over-the-counter processing in some jurisdictions, while additions, new buildings and complex commercial work can require multiple review cycles.

Before relying on a quoted review time, check whether it refers to the first plan review, total approval time, business days, or calendar days. Applicant corrections and reviews by planning, fire, utilities or other agencies can extend the total timeline.

How California Building Inspections Work

Once a permit is issued, the approved work must be inspected at the stages required by the responsible authority. The exact sequence appears on the permit documents, inspection card or online permit record.

Common inspection stages

• Excavation, footing, foundation or reinforcing before concrete placement.
• Under-slab or underground plumbing, electrical or mechanical work.
• Shear, framing and structural connections.
• Rough electrical, plumbing and mechanical systems.
• Insulation, energy-efficiency and applicable CALGreen items.
• Drywall or other required concealed-work inspections.
• Final building and applicable trade inspections.

Before the inspector arrives

• Confirm the correct inspection was requested.
• Keep the permit and approved plans available at the site as required.
• Make the work safely accessible.
• Do not cover work that must be inspected first.
• Have required testing, special-inspection or engineering documentation available.

If an inspection does not pass

Read the inspector’s correction information, fix each listed item, obtain revised-plan approval if the work differs from the approved design, and request the required reinspection. Do not assume that correcting the physical work automatically closes the inspection record.

California Building Codes in Effect for 2026

The 2025 California Building Standards Code, California Code of Regulations Title 24, became effective January 1, 2026. The California Building Standards Commission states that this edition is effective for the 2026–2028 code period, subject to applicable errata, emergency provisions and later effective supplements.

The 2025 California Energy Code also applies to permit applications subject to the new code beginning January 1, 2026. Energy requirements can affect new buildings, additions and alterations depending on the scope of work.

View 2025 California Codes Check 2025 Local Amendments

California Contractor License & Owner-Builder Rules

Before hiring someone to perform permit work, verify the contractor directly with the California Contractors State License Board. CSLB states that contractors generally must be licensed when the work requires a building permit, uses additional workers, or when the total cost of one or more project contracts is $1,000 or more, subject to applicable exemptions.

Check a California Contractor License

If you act as an owner-builder

Signing a permit as an owner-builder is more than a paperwork choice. CSLB explains that the owner assumes responsibility for the project, permits, code compliance, inspections, scheduling and other legal obligations associated with the work. Hiring unlicensed workers can also create employer-related responsibilities.

Before selecting owner-builder status, understand who will perform the work, whether licensed subcontractors are required, and what insurance, employment or safety obligations may apply.

Read CSLB’s official owner-builder responsibilities.

Projects That May Go Through a State Agency Instead

Manufactured homes, mobilehomes and certain modular projects

California HCD administers specialized programs for manufactured housing, mobilehomes, commercial modulars, factory-built housing and related facilities. Depending on the project and location, HCD or a local enforcement agency may handle permits or inspections.

For applicable HCD-administered construction permits, HCD publishes permit applications, inspection information and program-specific procedures. Factory-built housing installation is generally subject to inspection by the local building department even when factory construction was inspected through the HCD system.

California HCD permits and inspections

Hospitals and specified health facilities

HCAI’s Office of Statewide Hospital Planning and Development oversees design and construction for health facilities within its jurisdiction. HCAI provides plan review, an eServices portal, permitting and construction-observation processes for applicable projects.

HCAI Building Safety

Public schools and certain state projects

The Division of the State Architect reviews public K–12 school, community-college and certain essential-services or state-funded construction. DSA review covers areas such as structural safety, fire and life safety, accessibility and sustainability according to its jurisdiction.

DSA project submittal guidance

How to Check a California Permit Status or Find Old Building Records

Permit records are normally maintained by the agency that issued the permit rather than by one statewide building-permit database.

1. Identify the city or county that had jurisdiction when the work was permitted.
2. Open that government’s official permit or building-record search.
3. Search by permit/application number when available; otherwise try property address or APN if the system allows it.
4. Open the record to check application status, review comments, issued documents or inspection history that is publicly available.
5. For older or unavailable records, ask the department about archived records or its public-records request process.

When buying or remodeling an older property, do not assume that existing construction was permitted merely because it appears on an assessor record. Permit, zoning and assessor records serve different purposes.

California Local Building Department Guides

Permit procedures are local. These USBuilding.org guides show how requirements can differ from one California jurisdiction to another:

• Berkeley, California Building Department
• Antioch, California Building Department
• Agoura Hills Building Department
• Arcadia Building Department
• Bakersfield Building Department

Always use the guide for the jurisdiction that actually serves the project property.

Official California Building Resources

California Building Department: 10 Frequently Asked Questions