California (CA) Building Permit & Cost Directory
Explore municipal permit requirements, Bureau of Labor Statistics (BLS) contractor wages, and real-time residential cost calculators across all 58 counties in California for 2026.
California Residential Building Code & Licensing Overview
Statewide compliance standards and contractor mandates
Residential home renovations in California are regulated under the state building code adapted from the International Residential Code (IRC). Permits are mandated for all structural repairs, complete roof replacements exceeding 100-200 square feet, HVAC compressor and furnace retrofits, and electrical service upgrades.
General contractors and trade specialists must carry valid state licenses and verified worker's compensation coverage.
Homeowners may pull permits on their primary dwelling, assuming full civil liability for code compliance and passing inspections.
Find Your County in CA
Type your county or city name below to instantly isolate local building departments and cost calculators.
All California Counties (58)
Click any county below to calculate local permit costs, view inspector notes, and check trade wages.
Alameda County
Est. Permit: $193 • BLS $41.08/hr
Alpine County
Est. Permit: $193 • BLS $41.08/hr
Amador County
Est. Permit: $193 • BLS $41.08/hr
Butte County
Est. Permit: $193 • BLS $41.08/hr
Calaveras County
Est. Permit: $193 • BLS $41.08/hr
Colusa County
Est. Permit: $193 • BLS $41.08/hr
Contra Costa County
Est. Permit: $193 • BLS $41.08/hr
Del Norte County
Est. Permit: $193 • BLS $41.08/hr
El Dorado County
Est. Permit: $193 • BLS $41.08/hr
Fresno County
Est. Permit: $193 • BLS $41.08/hr
Glenn County
Est. Permit: $193 • BLS $41.08/hr
Humboldt County
Est. Permit: $193 • BLS $41.08/hr
Imperial County
Est. Permit: $193 • BLS $41.08/hr
Inyo County
Est. Permit: $193 • BLS $41.08/hr
Kern County
Est. Permit: $193 • BLS $41.08/hr
Kings County
Est. Permit: $193 • BLS $41.08/hr
Lake County
Est. Permit: $193 • BLS $41.08/hr
Lassen County
Est. Permit: $193 • BLS $41.08/hr
Los Angeles County
Est. Permit: $193 • BLS $41.08/hr
Madera County
Est. Permit: $193 • BLS $41.08/hr
Marin County
Est. Permit: $193 • BLS $41.08/hr
Mariposa County
Est. Permit: $193 • BLS $41.08/hr
Mendocino County
Est. Permit: $193 • BLS $41.08/hr
Merced County
Est. Permit: $193 • BLS $41.08/hr
Modoc County
Est. Permit: $193 • BLS $41.08/hr
Mono County
Est. Permit: $193 • BLS $41.08/hr
Monterey County
Est. Permit: $193 • BLS $41.08/hr
Napa County
Est. Permit: $193 • BLS $41.08/hr
Nevada County
Est. Permit: $193 • BLS $41.08/hr
Orange County
Est. Permit: $193 • BLS $41.08/hr
Placer County
Est. Permit: $193 • BLS $41.08/hr
Plumas County
Est. Permit: $193 • BLS $41.08/hr
Riverside County
Est. Permit: $193 • BLS $41.08/hr
Sacramento County
Est. Permit: $193 • BLS $41.08/hr
San Benito County
Est. Permit: $193 • BLS $41.08/hr
San Bernardino County
Est. Permit: $193 • BLS $41.08/hr
San Diego County
Est. Permit: $193 • BLS $41.08/hr
San Francisco County
Est. Permit: $193 • BLS $41.08/hr
San Joaquin County
Est. Permit: $193 • BLS $41.08/hr
San Luis Obispo County
Est. Permit: $193 • BLS $41.08/hr
San Mateo County
Est. Permit: $193 • BLS $41.08/hr
Santa Barbara County
Est. Permit: $193 • BLS $41.08/hr
Santa Clara County
Est. Permit: $193 • BLS $41.08/hr
Santa Cruz County
Est. Permit: $193 • BLS $41.08/hr
Shasta County
Est. Permit: $193 • BLS $41.08/hr
Sierra County
Est. Permit: $193 • BLS $41.08/hr
Siskiyou County
Est. Permit: $193 • BLS $41.08/hr
Solano County
Est. Permit: $193 • BLS $41.08/hr
Sonoma County
Est. Permit: $193 • BLS $41.08/hr
Stanislaus County
Est. Permit: $193 • BLS $41.08/hr
Sutter County
Est. Permit: $193 • BLS $41.08/hr
Tehama County
Est. Permit: $193 • BLS $41.08/hr
Trinity County
Est. Permit: $193 • BLS $41.08/hr
Tulare County
Est. Permit: $193 • BLS $41.08/hr
Tuolumne County
Est. Permit: $193 • BLS $41.08/hr
Ventura County
Est. Permit: $193 • BLS $41.08/hr
Yolo County
Est. Permit: $193 • BLS $41.08/hr
Yuba County
Est. Permit: $193 • BLS $41.08/hr
Frequently Asked Questions: California Building Permits
How much does a building permit typically cost in California?
Across California, the baseline residential permit filing fee averages $192.59. Total permit costs are calculated based on valuation formulas (typically $5 to $15 per $1,000 of project value) plus electrical, mechanical, and plan review inspection surcharges.
Do I need a building permit for roof replacement in California?
Yes. In virtually all California county jurisdictions, roof replacements involving more than 100 square feet (1 roofing square) or involving any structural decking, rafter, or truss repair require a formal building permit and at least one in-progress or final roof inspection.
What is the average trade wage for contractors in California?
According to the latest Bureau of Labor Statistics (BLS) Occupational Employment and Wage Statistics (OEWS), the median hourly rate for licensed residential construction trades in California is approximately $41.08/hr, varying based on metropolitan vs rural location.