Retaining walls over 4 feet in height (measured from bottom of footing to top) require a building permit and engineered plans in unincorporated Alameda County under the California Building Code.
Alameda County enforces the California Building Code for retaining walls. Walls retaining more than 4 feet of unbalanced fill (measured from the bottom of the footing to the top of the wall) require a building permit, engineered plans stamped by a licensed civil or structural engineer, and inspections. Walls supporting a surcharge (such as a driveway, structure, or sloping backfill) may require a permit regardless of height. In the East Bay hillside areas including Castro Valley, San Lorenzo foothills, and unincorporated Fairview and Sunol, soils investigation may be required due to expansive clays, landslide risk, and seismic considerations along the Hayward Fault. Drainage behind walls must comply with grading ordinance requirements to prevent saturation and failure. Permits are issued by the Alameda County Public Works Agency Building Inspection Division at (510) 272-6984.
Contact your local code enforcement office for specific penalty information.
Livermore, CA
Livermore Municipal Airport (LVK) has a voluntary noise abatement program with preferred runway/pattern procedures. No curfew but quiet hours 10 PM-7 AM disc...
Livermore, CA
Livermore prohibits habitual dog barking that disturbs neighbors under LMC 6.08. Alameda County Animal Services handles enforcement with a complaint and warn...
Livermore, CA
Livermore quiet hours run 10 PM to 7 AM weekdays and 10 PM to 8 AM weekends per LMC Chapter 9.32. Residential limit is 55 dB day, 45 dB night.
Livermore, CA
Livermore construction hours are 7 AM to 7 PM Monday-Friday and 9 AM to 6 PM Saturdays. No construction Sundays or federal holidays without permit.
Livermore, CA
Livermore allows leaf blowers within construction hours only. AB 1346 bans sale of new gas blowers statewide since Jan 1, 2024. Electric blowers still subjec...
Livermore, CA
Vehicle noise in Livermore enforced primarily through CA Vehicle Code §27150-27207. Altered/loud exhausts prohibited. Engine braking restricted on some streets.
Side-by-side rule comparisons with other cities in Alameda County.
See how other cities in Alameda County handle retaining walls.
See how Livermore's retaining walls rules stack up against other locations.
Quick Compare
Help us keep this page accurate. If you notice an error or outdated information, let us know.