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California Statewide Rule

California Good Neighbor Fence Act for Shared Boundaries

Some RestrictionsApplies statewide across California (2026)

Key Facts

Statute
Civil Code §841
Notice
30 days written
Cost split
Equal presumption
Forum
Civil or small claims
Last verified: September 5, 2026Source: California Civil Code 841

Summary

California Civil Code Section 841, the Good Neighbor Fence Act, presumes adjoining landowners share equal benefit and equal cost responsibility for boundary fences, applying statewide regardless of city ordinance.

(a) Adjoining landowners shall share equally in the responsibility for maintaining the boundaries and monuments between them. (b) (1) Adjoining landowners are presumed to share an equal benefit from any fence dividing their properties and, unless otherwise agreed to by the parties in a written agreement, shall be presumed to be equally responsible for the reasonable costs of construction, maintenance, or necessary replacement of the fence.

Source: California Civil Code 841View official code

Full Breakdown

Civil Code Section 841 establishes a rebuttable presumption that adjoining landowners share equally in the reasonable costs of construction, maintenance, and necessary replacement of boundary fences benefiting both properties. A landowner seeking contribution must give 30 days written notice describing the problem, proposed solution, estimated costs, and timeline. Neighbors can rebut the presumption with evidence of unequal benefit, financial hardship, or aesthetic preference. The statute applies uniformly throughout California and supplements but is not displaced by local fence rules.

Violations & Penalties

A neighbor refusing to share reasonable fence costs may be sued in small claims or civil court for contribution; failure to provide the required 30 day notice can defeat the contribution claim entirely.

Frequently Asked Questions

Does the Good Neighbor Fence Act force me to pay half?
It creates a presumption you owe half. You can rebut with evidence of unequal benefit, financial hardship, prior agreement, or that the fence exceeds reasonable necessity for your property.
What must the 30 day notice include?
The notice must describe the fence problem, the proposed solution, estimated construction or repair costs, the proposed cost share, and a reasonable timeline for the work.

Sources

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