Martinez, CA Fence Regulations: Neighbor Fence Rules (2026)
Key Facts
- Statutory Authority
- CA Civil Code §841: 50/50 cost presumption
- Notice Required
- 30 days written notice required
- Fence
- Spite fence rule: no fence over 10 ft to annoy
- Small Claims
- Small claims up to $10,000 at Martinez Superior Court
- License Required
- Licensed surveyor required for boundary location
Summary
Martinez follows California Civil Code §841 (Good Neighbor Fence Act), which presumes boundary fence costs are shared equally between adjacent property owners. Thirty days written notice to the neighbor is required before construction or replacement. Disputes not resolved through negotiation may be pursued in Contra Costa County Small Claims Court for amounts up to $10,000.
841. (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.
(2) Where a landowner intends to incur costs for a fence described in paragraph (1), the landowner shall give 30 days' prior written notice to each affected adjoining landowner. The notice shall include notification of the presumption of equal responsibility for the reasonable costs of construction, maintenance, or necessary replacement of the fence. The notice shall include a description of the nature of the problem facing the shared fence, the proposed solution for addressing the problem, the estimated construction or maintenance costs involved to address the problem, the proposed cost sharing approach, and the proposed timeline for getting the problem addressed.
(3) The presumption in paragraph (1) may be overcome by a preponderance of the evidence demonstrating that imposing equal responsibility for the reasonable costs of construction, maintenance, or necessary replacement of the fence would be unjust.
Full Breakdown
Boundary fence disputes in Martinez are governed by California Civil Code §841, the Good Neighbor Fence Act of 2013, which establishes a legal presumption that adjoining landowners benefit equally from boundary fences and should share construction and maintenance costs equally. Before building or replacing a boundary fence, property owners must provide at least 30 days written notice to the adjacent property owner, including: description of the proposed fence, estimated costs, proposed cost-sharing, and a timeline. , one neighbor has a swimming pool requiring a code-compliant fence), unreasonable cost for the neighbor given their financial position, or that the neighbor does not need or will not use the fence.
4 separately prohibits 'spite fences', fences over 10 feet tall built primarily to annoy a neighbor. Boundary location disputes require a licensed land surveyor; Martinez has several local surveying firms. When disputes cannot be resolved directly, mediation is available through Contra Costa County Bar Association. Small claims filings (amounts under $10,000) can be made at the Martinez Superior Court on Ward Street. Shared driveway and easement disputes often accompany fence issues and require separate title research.
Frequently Asked Questions
Who pays for a shared fence between me and my neighbor?
How much notice do I have to give my neighbor before building a fence?
Sources & Official References
Other rules in Martinez
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Neighbor Fence Rules in Nearby Cities
How other cities in Contra Costa County handle neighbor fence rules.