This guide is for Vacaville homeowners sharing a property line who need a new or replacement fence. California’s Good Neighbor Fence Law (Civil Code section 841) generally splits the cost 50/50 between neighbors, requires written notice at least 30 days before building, and lists specific exceptions. It also covers Vacaville’s local height rules.
What the Good Neighbor Fence Law covers
Neighbors who share a property boundary are equally responsible for building a new fence, maintaining an existing one, and sharing costs unless proven otherwise.
The law assumes a boundary fence benefits both properties equally, so costs are typically split 50/50.
Written notice before you build
Before building or replacing a shared fence, the law requires you to give your neighbor written notice at least 30 days in advance.
- A description of the problem, such as damage, age, security, or privacy
- The proposed solution, such as a repair, replacement, or upgrade
- Estimated costs and how you suggest splitting them
- A timeline for the work
When cost sharing does not apply
Neighbors are not required to share costs if they can prove one of the following.
- The fence only benefits one property, for example decorative fencing that adds no security or privacy for the other side
- The work is excessive or unnecessary
- The other neighbor caused the damage, such as through neglect or a deliberate action
Vacaville height and design rules still apply
Cost sharing is a separate question from height and design, which local Vacaville rules control. Front yards are limited to 3 to 4 feet. Side and back yards can go up to 6 feet without a permit. Anything over 6 feet requires city approval. Fences next to open space may require non-combustible materials.
Even when neighbors agree on a fence, it still has to meet city or county code.
Keeping the peace with your neighbor
A few habits make a shared fence project go smoother.
- Talk early instead of surprising your neighbor with construction
- Offer design input so both sides can weigh in on style and materials
- Choose a neutral style and color that fits both properties
- Get any agreement in writing to help prevent conflict later
How Hines Iron helps
We provide neutral, professional estimates you can share with a neighbor, along with multiple material and design options. We also make sure the design complies with Vacaville codes and wildfire requirements, and build fences that hold up for both households.
FAQs
Common Questions
Do I have to split the cost of a fence with my neighbor in Vacaville?
Yes, under California law, boundary fences are presumed to benefit both properties, so costs are typically shared 50/50.
What if my neighbor refuses to pay for their share?
You can still build the fence, but you may need to prove the benefit and pursue reimbursement in small claims court. Written notice is critical.
Can I build a fence without my neighbor’s permission?
If it is on your property and within Vacaville code, yes. But if the fence sits on the boundary line, you need to notify your neighbor and share costs.
Who decides the style of the fence?
Ideally, both neighbors agree. If not, choose a neutral design that meets local codes. HOAs may also have specific style rules.
What happens if my neighbor damages the fence?
If one neighbor causes damage, for example by cutting posts, neglecting an irrigation leak, or hitting it with equipment, they may be responsible for repair costs.
Can I make my side of the fence look different?
Yes. As long as the structure is consistent, you can stain, paint, or add landscaping on your side. Always confirm with your HOA if applicable.
How high can my fence be in Vacaville?
Front yards can go up to 3 to 4 feet. Side and backyard fences can go up to 6 feet without a permit. Anything over 6 feet requires city approval and possibly engineering.
Ready to start your fence project?
Request a free, no-obligation estimate from Hines Iron today.