Neighbor Fence Rules: Mountain View vs Sunnyvale
How do neighbor fence rules rules compare between Mountain View, CA and Sunnyvale, CA?
Mountain View and Sunnyvale have similar restriction levels.
Mountain View, CA
Santa Clara County
Shared fences between Mountain View neighbors are governed by California Civil Code 841 which presumes equal cost sharing for maintenance with 30 day written notice required before work.
View full Mountain View rules →Sunnyvale, CA
Santa Clara County
California Civil Code 841 (Good Neighbor Fence Act) requires adjoining property owners to share the cost of boundary fences equally absent written agreement, and 30-day written notice before construction.
View full Sunnyvale rules →Key Facts Comparison
| Fact | Mountain View | Sunnyvale |
|---|---|---|
| Governing law | CA Civil Code 841 | CA Civil Code 841 |
| Default cost share | 50/50 presumption | - |
| Notice required | 30 days written | - |
| Dispute forum | Small claims court | Small claims court |
| City role | Safety only not disputes | - |
| Default cost split | - | 50 / 50 |
| Written notice | - | 30 days minimum |
| Survey | - | Highly recommended |
Highlighted rows indicate differences between cities.
Mountain View FAQ
Can I force my neighbor to pay half?
Civil Code 841 creates a presumption of equal sharing, but the neighbor can rebut by showing unequal benefit; enforcement requires court action.
Does the city mediate fence fights?
No. Mountain View Code Enforcement addresses only code violations; private cost disputes go to small claims court.
Sunnyvale FAQ
Can my neighbor refuse to pay half for a replacement fence?
They can try to rebut the presumption by showing hardship or lack of benefit. A judge in small claims decides if the rebuttal is valid.
What if the fence is on my property, not the line?
If the fence sits entirely on one parcel, Civil Code 841 does not automatically require cost sharing. A survey clarifies whether the fence is truly a boundary fence.
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