Your neighbor, your fence, and California Civil Code 841
The second most common question on an estimate, and the one most likely to stall a job for a year. Here is what the law says, what it does not say, and the practical way most of these actually get settled. This is a plain-English summary from a fence contractor, not legal advice.
The workhorse. Galvanized pipe set in concrete, fabric stretched tight, top rail or top wire depending on what the fence has to survive. It goes 4 feet around a dog run and 12 feet around a pickleball court, and the shop stocks the black vinyl coated version for anyone who wants it to disappear into the landscape.
What the law presumes
California Civil Code section 841, the Good Neighbor Fence Act, starts from the presumption that adjoining landowners share equally in the responsibility for maintaining the boundaries and monuments between them, and that a fence on the line benefits both. In practice that means a presumption of a 50/50 split on building and maintaining a shared fence.
It is a presumption, not an absolute. It can be rebutted if an equal split would be unfair, and the statute lists what a court would weigh: the cost relative to the benefit, whether the expense is out of proportion to what one owner gets, and the financial burden on each party.
Written notice, 30 days
The law expects you to give the neighbor written notice at least 30 days before starting, and it expects that notice to be reasonably specific. If you skip the notice and then ask for half afterward, you have made your own case harder.
- That a problem exists with the shared fence, and what it is
- What you propose to do about it
- The estimated cost
- The proposed cost sharing
- The proposed timeline
The three ways this actually goes
- You both agree and split it. Most common outcome. Get it in writing, even a text thread, and have the contractor quote it so the split is obvious.
- You pay for all of it. Also very common, and often the fastest path. You pick the fence, you control the schedule, and nobody argues about the style.
- You build just inside your own line. Then it is your fence, entirely, and you owe nobody a conversation. You give up a few inches of yard and you may end up with two fences on one line eventually.
Where the line actually is
The old fence is not evidence of the property line. It is evidence of where somebody once put a fence. If the line matters, and especially if you are going to build a fence you paid for entirely, a survey settles it for a few hundred dollars and prevents a much more expensive argument.
We build to the line you tell us. We are not surveyors and we will not guess for you.
How we quote it
Ask and we will write the estimate so it splits cleanly, with the total and the half. Some neighbors sign off on a piece of paper who would never agree to a number spoken over a fence.
Questions we get
You can build it yourself and pursue the share in small claims court, or you can build inside your own line and be done with it. Which one is right depends on the amount of money and how much you value never discussing it again.
If they are paying half, in practice yes. If you are paying all of it and it is on the line, it is still a shared fence and a conversation is cheaper than a dispute. If it is inside your line, it is your fence.
Notice goes to the owner, not the tenant. In an HOA, the CC&Rs may specify the fence style, who maintains it, and sometimes who pays, and those terms come first.
Ask about your own fence line
Roughly how many feet, what is there now, how many gates, and which town. Photos help. Someone will call back to walk the line and put a real number on it.