Alameda County Code §6.60.050 prohibits repairing, rebuilding, modifying or testing vehicles in residential areas between 7 p.m. and 7 a.m. if it produces sound plainly audible at 50 feet. State Vehicle Code adds modified-exhaust and engine-brake limits.
Section 6.60.050 explicitly bans residential-area vehicle work between 7 p.m. and 7 a.m. when sound is plainly audible at 50 feet from the vehicle. California Vehicle Code §27150 prohibits any vehicle without an adequate muffler; §27151 bans modified exhaust louder than 95 dB(A). Engine brakes ('Jake brakes') on Castro Valley Boulevard / I-580 are restricted in posted areas. Loud motorcycles routinely cited under Cal. VC §27151.
Vehicle work outside allowed hours: §6.60 violation, $100-$500 admin citation or misdemeanor. Modified exhaust: VC §27150 fix-it ticket, $25 plus correction; refusal to correct escalates to $200+.
Other ordinances people look up for this city. Green dot = verified primary-source excerpt.
Castro Valley, CA
Heavy commercial vehicles - generally over 10,000 lbs GVW or 22 feet long - cannot be parked overnight on Castro Valley residential streets, and cannot be pa...
Castro Valley, CA
Alameda County NPO §6.65.030 limits where RVs, boats and trailers may be stored on residential property in Castro Valley: only on a paved driveway/parking ar...
Castro Valley, CA
Castro Valley follows California Vehicle Code §22651 plus Alameda County parking rules. There is a 72-hour parking limit on any street; no overnight RV/overs...
Castro Valley, CA
Alameda County Code §17.52.430 limits residential fences in Castro Valley to 4 feet in the required front yard, 6 feet in side and rear yards, and 2 feet wit...
Castro Valley, CA
California's Good Neighbor Fence Act (Civil Code §841) presumes that adjoining property owners share the cost of a boundary fence equally. The County does no...
Castro Valley, CA
Alameda County zoning treats chickens as livestock requiring an Animal Fancier's Permit in residential districts. Standard R-1 households can keep up to 1 fo...
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