Your neighbor may legally owe half your fence.
In California, the law presumes neighbors split the cost of a shared fence 50/50 — but only if you send the right written notice at least 30 days before work starts, and the notice contains six specific things. Miss one, and your claim to their half is at risk.
Check your situation free below. If the law is on your side, build the exact notice in about five minutes.
Does your neighbor owe half? Get your verdict
Build your §841 notice letter
California Civil Code §841(b)(2) lists six things your notice must include. This builder will not let you check out until all six are in — that's the point. Everything happens in your browser: your names and addresses are never sent to or stored on a server.
Who is sending it, and who is it for?
Item 2 of 6 — The problem with the fence
Item 3 of 6 — The proposed solution
Item 4 of 6 — The estimated cost
Item 5 of 6 — How the cost will be shared
Item 6 of 6 — The timeline
Your letter, as the law requires it
Item 1 of 6 — the statement that both owners are presumed equally responsible — is built into the letter automatically, worded from §841(b)(1). Watch the preview: anything missing shows in red, and checkout stays off until it's fixed.
One-time payment. No subscription, no account. You get a print-ready PDF version and an editable copy, plus a one-page "how to send it so it counts" sheet.
Already did the work? The payment-request letter
For after the fence is built and your neighbor hasn't paid their share. A polite, firm letter that states the total cost, their share, what you sent them before the work (the §841 notice), and a clear payment deadline — with invoice slots.
Questions, answered straight
Does this apply if the fence is entirely on my side of the property line?
No. Section 841 covers fences that divide the two properties. A fence built entirely on your land is yours alone — your neighbor owes nothing toward it, and you don't need their permission (subject to local fence rules and your HOA).
My neighbor is a renter. Who gets the notice?
The property owner, not the tenant. The duty to share fence costs belongs to the landowner. If the house next door is rented out, send the notice to the owner — you can find the owner's mailing address in your county assessor's records.
What if my neighbor says the fence doesn't benefit them?
Under §841(b)(3), a court can reduce or cancel a neighbor's share if they prove grounds such as financial hardship, that the fence gives them no real benefit, or that the cost is unreasonable. Your protection is to keep the project reasonable — a like-for-like replacement at a fair market price — and to say so in the notice.
Does my HOA's approval replace this notice?
No. HOA architectural approval and the §841 notice are two separate things: one satisfies your association, the other preserves your right to collect half the cost from your neighbor. Many homeowners need both.
What about a very tall fence, or one built to annoy?
Separate rule: under §841.4, a fence over 10 feet tall that is unnecessarily high and erected or maintained to annoy the neighboring owner is a private nuisance ("spite fence"). Keep your project reasonable in height and purpose — both for the law and for the relationship.
I live outside California. Can I use the notice letter?
Not honestly — §841 is California law, and we have only verified California's statute. Some other states have cost-sharing laws of their own, but several "fence laws" on the books cover livestock fences only. Until we've read and verified each state's law ourselves, the product we offer everywhere else is a written cost-split agreement you both sign before the work — which lawyers consistently say is the strongest protection in states without a presumption.
Is this legal advice?
No. FenceNotice provides general information and a letter template based on the text of California Civil Code §841. It is not a law firm and this is not legal advice. For a disputed or high-value fence, talk to a California real estate attorney.