Unincorporated Trinity County exempts fences up to 7 feet high from a building permit under County Code Sec. 15.04.140 (Ordinance 1373), unless parcel-specific zoning is more restrictive. Retaining walls up to 4 feet (footing to top) are also permit-exempt unless they support a surcharge. Taller fences and walls need a permit from the Building Division.
Because Trinity County has no incorporated cities, the County Building Division issues fence-related permits county-wide. Trinity County Code Section 15.04.140, as amended by Ordinance No. 1373 (June 3, 2025), lists work that does not require a building permit. Item 2 exempts 'Fences not over 7 feet high unless parcel specific zoning does not allow,' adding that such fences 'shall still meet all zoning requirements as well as any requirements of the Department of Transportation.' Item 3 exempts 'Retaining walls that are not over 4 feet in height measured from the bottom of the footing to the top of the wall, unless supporting a surcharge.' These are permit thresholds, not zoning approvals - a fence can be permit-exempt yet still need to respect the zoning district's height cap, required yards, and sight distances. Driveways and sidewalks within the right-of-way of County-maintained roads require an encroachment permit from the Trinity County Department of Transportation, so a fence near a road may trigger an encroachment review even when no building permit is needed. The Planning Division (530-623-1351) in Weaverville handles zoning clearance.
Building a permit-required fence or wall without a permit can lead to stop-work orders, investigation fees, and after-the-fact permit fees from the Trinity County Building Division. Work that also violates Title 17 zoning - for example a structure inside a required yard - can trigger separate zoning enforcement and abatement. Fences encroaching on a County road right-of-way without an encroachment permit are enforced by the Department of Transportation.
Other ordinances people look up for this city. Green dot = verified primary-source excerpt.
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Trinity County has no ordinance banning backyard composting; home composting of yard and food scraps is allowed. California's SB 1383 organic-waste recycling...
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Trinity County has no ordinance prohibiting or specially regulating artificial turf. Synthetic lawns are allowed on residential property, subject only to gen...
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Trinity County does not mandate native-plant landscaping for ordinary homes. However, the county cannabis-cultivation rules (Code Ch. 17.43G) require biologi...
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Trinity County has no ordinance restricting rooftop rainwater harvesting. Capturing rainwater in barrels and cisterns for outdoor, non-potable use is allowed...
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Trinity County has no countywide lawn-watering day/time schedule. Outdoor water use is shaped by the county Water Quality Control Ordinance (Code Ch. 8.60), ...
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Trinity County's Vegetation Management Ordinance (Code Ch. 8.68, Ord. No. 1300) declares excessive dry grass, brush, dead trees and other flammable vegetatio...
See how Trinity County's permit requirements rules stack up against other locations.
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