Property Maintenance in Contra Costa County, CA (2026)

2 county-level rules, plus city-specific rules for 6 cities in Contra Costa County, California.

Verified from official government sources

Note: These county rules apply to unincorporated areas of Contra Costa County. If you live within an incorporated city, that city's own rules apply: see the city list below.

Property Blight

CCC Ordinance Code Chapter 418-6 declares inoperable, wrecked, or dismantled vehicles on private property a public nuisance. Abatement process includes 10-day notice, administrative hearing, and tow at owner expense.

Property Maintenance: Junk Vehicles

Light Restrictions

California Vehicle Code § 22660

Notwithstanding any other provision of law, a city, county, or city and county may adopt an ordinance establishing procedures for the abatement and removal, as public nuisances, of abandoned, wrecked, dismantled, or inoperative vehicles or parts thereof from private or public property, and for the recovery, pursuant to Section 25845 or 38773.5 of the Government Code, or assumption by the local ...

Full ordinance details →Official source ↗

Vacant Lot Maintenance

Unimproved lots in unincorporated Contra Costa County fall under the county's Vacant Property Ordinance, Chapter 720-6, which bars owners from letting nuisance conditions like weeds over eighteen inches, dumped trash, or discarded vehicles accumulate. Properties with repeat nuisance problems can be ordered fenced, and the county building official can fence the lot itself and bill the owner if the order is ignored.

Contra Costa County Vacant Property Rules

Significant Restrictions

Contra Costa County Ordinance Code §§ 720-6.404(a), 720-6.208(b)(5), 720-6.612(a)

No owner shall maintain or allow the maintenance of vacant property in such a manner that any nuisance condition exists on the vacant property... "Nuisance condition" is one or more of the following conditions occurring on a vacant property:(1)Substantial amounts of trash, debris, rubbish, or garbage;...(5)Weeds over eighteen inches in height... After issuing a notice and order to abate, the co...

Full ordinance details →Official source ↗