Fees, valuation & enforcement
Permit fees are a project input. Enforcement exposure is a project risk. Use the official schedule where available, then confirm valuation, trade permits, plan review, and inspection charges with the Authority Having Jurisdiction.
Official fee pathway
The final charge may depend on declared construction value, occupancy classification, square footage, plan review, state surcharges, trade permits, technology fees, and inspection activity. Do not use a neighboring city’s fee table as a substitute for this jurisdiction.
Fee desk contact
925-655-2700 (Building and Planning); 925-646-4108 (automated inspections)
Ask the counter to confirm current charges before submitting a project with multiple trades or a change of use.
Financial exposure
Plan for building, mechanical, plumbing, electrical, fire, energy, zoning, septic, right-of-way, or other reviews that the project scope triggers. The lowest initial permit fee is not always the lowest project cost.
Enforcement exposure
When work begins without authorization, the agency may halt the site, require corrective plans, impose additional fees, withhold inspection release, or require concealed work to be exposed for review.
Closeout exposure
A missing final inspection or certificate can complicate occupancy, refinancing, sale, insurance, and utility connection. Preserve the approved plans and signed inspection record through closeout.
Professional field note
Even when a cosmetic or minor project does not require a building permit, zoning, floodplain, shoreline, historic, utility, fire, or right-of-way controls may still apply. Confirm the full jurisdictional picture before work starts.
Source trail
Use these direct agency or licensing links to confirm current instructions before you file, pay, or schedule work. External pages control if their information differs from this directory.
Project questions
Contra Costa County Department of Conservation and Development, Building Inspection Division is the identified county-level authority for this profile. Confirm that the property is in its service area before filing.
Begin with the online permit gateway listed in the application guide. If the portal does not recognize the address or project type, contact 925-655-2700 (Building and Planning); 925-646-4108 (automated inspections).
The county's published process gives an initial completeness review of approximately 4-5 business days. Subsequent plan review depends on project scope, completeness, corrections, and payment; the county does not publish one universal final-issuance timeline.
Schedule building inspections through the ePermits Center or the automated system at 925-646-4108. The county posts the daily inspection schedule after 8:45 a.m. Monday-Friday; the permit card and approved plans must be on site.
The county's current building-code guide, updated January 2, 2026, lists the 2025 California Building Standards Administrative Code; Building Code Volumes 1 and 2; Residential, Electrical, Mechanical, Plumbing, Energy, Wildland-Urban Interface, Historical, Fire, Existing Building, Green Building Standards, and Reference Standards Codes; Contra Costa County Code Title VII; and applicable city ordinances in county-served cities. The county's official exemption sheet lists one-story detached accessory structures up to 120 square feet; fences up to 7 feet; qualifying retaining walls up to 3 feet; ground-supported water tanks up to 5,000 gallons meeting the 2:1 height-to-width limit; qualifying sidewalks and driveways; painting, papering, tiling, carpeting, cabinets, countertops, and similar finish work; qualifying shallow above-ground pools; agricultural shade-cloth structures; playground equipment; qualifying window awnings; movable fixtures, cases, racks, counters, and partitions up to 5 feet 9 inches; and qualifying detached decks up to 200 square feet and 30 inches above grade. Electrical, plumbing, mechanical, zoning, public-works, and other agency requirements can still apply.
Why permit costs vary
Building departments commonly calculate charges from valuation, occupancy, floor area, project type, plan review effort, trade scope, state surcharges, and inspection activity. A remodel that appears small on paper may still trigger structural, energy, fire, or utility review. Ask the permit counter which disciplines apply before you finalize the construction budget.
The same discipline applies to enforcement. Correcting unpermitted work after finishes are installed can require demolition, revised plans, additional inspections, and schedule disruption. Authorization is usually the less expensive project-management decision.