Neighbor Fence Rules: Concord vs Oakley
How do neighbor fence rules rules compare between Concord, CA and Oakley, CA?
Concord and Oakley have similar restriction levels.
Concord, CA
Contra Costa County
Hedges in Concord that function as fences are subject to the same height limits as fences: generally 3.5 feet in front yards and 6 feet in side and rear yards. Overgrown hedges obstructing sight triangles or sidewalks can be abated as a public nuisance. Hedges on boundary lines can be shared under California Civil Code §841 principles.
View full Concord rules →Oakley, CA
Contra Costa County
Boundary fence disputes in Oakley are governed by California Civil Code Section 841 (Good Neighbor Fence Act), which presumes equal cost-sharing for boundary fences between adjoining owners and requires 30 days written notice before construction. Oakley does not mediate these civil disputes directly.
View full Oakley rules →Key Facts Comparison
| Fact | Concord | Oakley |
|---|---|---|
| Front Yard Max | ~3.5 ft if functioning as fence | - |
| Side/Rear Max | ~6 ft if functioning as fence | - |
| Sidewalk Clearance | 8 ft vertical | - |
| Corner Sight Triangle | Vegetation <3 ft | - |
| Abatement Authority | CA H&S Code §14875 | - |
| Governing law | - | CA Civil Code 841 |
| Notice period | - | 30 days written |
| Cost split | - | 50/50 presumption |
| Spite fences | - | CA Civil Code 841.4 |
| City role | - | Does not mediate |
Highlighted rows indicate differences between cities.
Concord FAQ
Do hedge rules match fence rules?
Yes when the hedge functions as a boundary barrier. Ornamental landscaping outside of the fence function may be treated differently.
Can my neighbor force me to trim my hedge?
Yes if it crosses the property line, blocks sightlines, or overhangs sidewalks. Otherwise disputes are private and typically resolved in Small Claims Court.
What if my hedge blocks the sidewalk?
You must maintain 8 feet of vertical clearance over public sidewalks. Code Enforcement can require trimming under Streets & Highways Code §5610.
Oakley FAQ
Does my neighbor have to pay half of a new fence?
Under CA Civil Code 841, yes — but only if you provide the required 30-day written notice and the project is reasonable. They can rebut the presumption.
How do I find my actual property line?
Hire a licensed land surveyor. City records, title documents, and subdivision maps provide starting points but a survey produces defensible line markers.
What is a spite fence?
A fence over 10 feet tall built primarily to annoy a neighbor, prohibited by CA Civil Code 841.4. Affected neighbors can sue for abatement and damages.
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