Sunnyvale, CA Fence Regulations: Material Restrictions (2026)
Key Facts
- Electrified fences
- Banned near residential use
- Barbed/razor wire
- Banned near residential use
- Chain link cutoff date
- January 1, 2010
- Chain link restriction area
- Front/reducible front yard only
- Applies regardless of zoning
- Yes, per Sec. 19.48.020(c)
Summary
Sunnyvale bans electrically charged fences and any barbed wire, razor wire, or injury-designed fencing on or near residential property, and prohibits new chain link fences in front yards of residential lots built after January 1, 2010.
Prohibited Materials. It is unlawful to erect any electrically charged fence or any fence composed of barbed wire, razor wire or other material which is designed to cause injury upon contact on or adjacent to any residential use regardless of the underlying zoning. Chain link fences may not be constructed after January 1, 2010 in the front or reducible front yard of residential uses and residential zoning districts.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: rev 4856529; v14 updated 2026-05-19).
Full Breakdown
020(c) makes it unlawful to erect any electrically charged fence, or any fence composed of barbed wire, razor wire, or other material designed to cause injury upon contact, on or adjacent to any residential use, regardless of the underlying zoning district. That means the ban reaches commercial or industrial parcels too if they sit next to a residential use, not just residentially zoned lots themselves. The same subsection separately bars chain link fencing: chain link fences may not be constructed after January 1, 2010 in the front yard or reducible front yard of residential uses and residential zoning districts, meaning existing chain link installed before that date can remain but new chain link in those yard areas cannot be built.
020(a), as any barrier of wood, masonry, stone, wire, metal or other material erected to enclose, screen, or separate areas, and specifically cross-references the prohibited-materials subsection for exclusions from that definition. 025.
Violations & Fines
Installing an electrified fence, barbed wire, or razor wire on or adjacent to a residential use, or building a new chain link fence in a residential front or reducible front yard after the January 1, 2010 cutoff, violates Section 19.48.020(c) and is enforceable under the city's general code enforcement and penalty provisions in Chapter 1.04, which can require the fence's removal.
Frequently Asked Questions
Can I put barbed wire on my fence in Sunnyvale?
Is chain link fencing banned in Sunnyvale?
Does the electric fence ban apply to commercial properties in Sunnyvale?
Sources & Official References
Other rules in Sunnyvale
California rules heatmap·Compare Sunnyvale to another location·View the California fence regulations overview
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Material Restrictions in Nearby Cities
How other cities in Santa Clara County handle material restrictions.