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Contra Costa County, CA Sidewalk & Pedestrian Rules: Encroachment Permits (2026)

Significant Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified September 2026

Key Facts

Permitting authority
Director of Public Works
Application deadline to start work
90 days from issuance
First-offense infraction fine
$100
Repeat within one year
$200, then $500
Appeal body
Board of adjustment

Summary

In unincorporated Contra Costa County, nobody may build, plant, dig, or place anything in a public right-of-way, including a sidewalk, without a written encroachment permit from the Public Works Director. Unpermitted work is an infraction and can be ordered removed at the owner's expense.

City-specific rules exist: Brentwood, San Ramon, and Antioch have their own encroachment permits rules that differ from Contra Costa County's county-level regulations. If you live in one of those cities, check the city-specific page instead.

No person, firm, corporation, or association, without first obtaining a written permit, shall:(1)Encroach or make any encroachment within, on, over, or under the limits of any right-of-way;(2)Make any alteration within, on, over, or under right-of-way;(3)Construct, put on, maintain, or leave on a right-of-way any obstruction or impediment;(4)Cut, or trim trees or set a fire on a right-of-way;(5)Place on, over or under a right-of-way any pipeline, conduit, or other fixture...

View official code

Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Ordinance Code: Supplement 103).

Full Breakdown

008 makes it unlawful to "[e]ncroach or make any encroachment within, on, over, or under the limits of any right-of-way," to alter a right-of-way, to leave any obstruction on it, or to place a pipeline, conduit, wall, culvert, or similar structure there, without first obtaining a written permit. 002 to include any land dedicated, reserved, or used for road or highway purposes, and "encroach" expressly covers building a sidewalk, driveway, culvert, pipe, or conduit within it. 002 assigns the Director of Public Works to issue the written permit on a prescribed application form showing the applicant's name, contractor license number, and the purpose, location, dimensions, and estimated start/completion dates of the work.

004 requires a map, plat, sketch, or diagram locating the encroachment when the director asks for one. 020 requires a deposit covering the permit fee, field investigation charges, and inspection fees under the board of supervisors' adopted fee schedule. 010 bars any permit for a loading platform, a sign-support post or column, or an overhanging sign within the right-of-way, except a bus-shelter sign or a directional sign meeting Chapter 88-6. 012, with the county restoring the right-of-way and billing the permittee for the cost plus a 15 percent administrative fee.

Violations & Fines

Unpermitted encroachment is an infraction under Ordinance Code Section 14-8.002, which makes every act prohibited by the code an infraction unless otherwise stated. Section 14-8.004 sets the fine schedule at $100 for a first violation, $200 for a second violation of the same ordinance within one year, and $500 for each additional violation within that year. Section 14-8.008 authorizes the Director of Public Works or a designated subordinate to arrest or cite violators of Division 1002 provisions. A permit refusal may be appealed to the board of adjustment under Section 1002-2.014, which must grant the permit if the applicant would be substantially damaged by refusal, no other reasonable method exists, and the grant is not detrimental to public safety or welfare.

Frequently Asked Questions

Do I need a permit to put a sidewalk in the county right-of-way in unincorporated Contra Costa County?
Yes. Section 1002-2.008 lists constructing a sidewalk, driveway, or similar surfacing within a right-of-way as an encroachment requiring a written permit from the Director of Public Works before any work begins, regardless of who owns the adjoining property.
How long is an encroachment permit valid?
Under Section 1002-4.010, you must begin work within 90 days of issuance or the permit becomes void. A permit for a continuing use, like a driveway or landscaping feature left in the right-of-way, is valid for one year from issuance unless the permit states otherwise.
What happens if I encroach on the right-of-way without a permit?
It is an infraction under Section 14-8.002, punishable by a $100 fine for a first violation, $200 for a second within a year, and $500 for each further violation, and the Director of Public Works can order the unpermitted encroachment removed at your expense.
Can I appeal if the county denies my encroachment permit?
Yes. Section 1002-2.014 lets you appeal a permit refusal to the board of adjustment, which must grant it if you would be substantially damaged by the denial, no other reasonable option exists, and the encroachment would not harm public safety or welfare.

Sources & Official References

Other rules in Contra Costa County

All Contra Costa County rules

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