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San Bernardino County, CA Fence Regulations: Neighbor Fence Rules (2026)

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Verified 1 month ago|Source: CA Civil Code 841 →

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Key Facts

Governing Law: CA Civil Code 841
Cost Split: 50/50 presumed
Notice Required: 30 days written
Small Claims Limit: 12,500 dollars
Dispute Venue: Civil court only

City-specific rules exist: Rancho Cucamonga, Victorville, Ontario, Fontana, and San Bernardino have their own neighbor fence rules rules that differ from San Bernardino County's county-level regulations. If you live in one of those cities, check the city-specific page instead.

Summary

California Civil Code 841 (Good Neighbor Fence Act) requires San Bernardino County neighbors to share equally in boundary fence costs. A written 30-day notice is required before work begins.

Full Breakdown

San Bernardino County follows California Civil Code 841, known as the Good Neighbor Fence Act of 2013, which creates a rebuttable presumption that adjoining landowners benefit equally from a boundary fence and must share equally in reasonable construction, maintenance, and replacement costs. A landowner who intends to build or repair a shared fence must provide 30 days written notice to the neighbor, including the problem, proposed solution, estimated costs, cost-sharing proposal, and timeline. A neighbor who objects may rebut the equal-share presumption by showing unequal benefit, financial hardship, or that the proposed fence is excessive. Fences must be placed entirely on the property line unless both owners agree otherwise. Disputes are handled through San Bernardino County Small Claims Court (jurisdiction up to 12,500 dollars) or Superior Court. County Code Enforcement does not mediate civil boundary disputes.

Violations & Fines

Civil disputes between neighbors are handled in Small Claims Court rather than by Code Enforcement. A neighbor who builds a boundary fence without the required 30-day notice may lose the right to compel cost-sharing.

Frequently Asked Questions

Does my neighbor have to help pay for a shared fence?

Yes. Under California Civil Code 841, neighbors are presumed to share equally in the reasonable cost of a boundary fence unless a neighbor can prove the presumption should be rebutted due to unequal benefit, hardship, or excessive cost.

Do I need to notify my neighbor before replacing a shared fence?

Yes. California law requires 30 days written notice describing the problem, proposed fix, estimated cost, cost-sharing proposal, and timeline before starting construction on a boundary fence.

Does San Bernardino County mediate fence disputes?

No. County Code Enforcement only handles zoning violations such as height or setback issues. Civil disputes over cost-sharing or property lines must be resolved through Small Claims Court.

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San Bernardino County, CA Fence Regulations: Neighbor Fence Rules (2026)

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