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Fences and walls in Napa County

County rule: fences are limited to 4 ft in front yard setbacks and 8 ft in side and rear setbacks, see-through above 6 ft.

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Key points

  • Fence height: County rule: fences are limited to 4 ft in front yard setbacks and 8 ft in side and rear setbacks, see-through above 6 ft.

Each rule below links to the section of the Napa County Municipal Code it was read from, with the code text one click away (checked October 2026). General information, not legal advice.

What Napa County's code says

Napa County code What Napa County's code adds
Corner visibility
  • Solid fences may be no more than 42 inches high within a 55-foot corner vision triangle.
    Applies: At intersections and driveway entrances, in all districts.
    § 18.104.270 · code text
    At intersections and driveway entrances, solid fence height in all districts shall not exceed forty-two inches in height within a fifty-five foot corner vision triangle
Front yard height
  • Up to 4 feet.
    Applies: In the designated front yard setback.
    § 18.104.270 · code text
    Fences up to a height of four feet are permitted in the designated front yard setback
  • Up to 8 feet.
    Applies: See-through deer fencing that supports agricultural uses, in the designated front yard setback.
    § 18.104.270 · code text
    see-through deer fencing up to eight feet is permitted to support agricultural uses
Side and rear yard height
  • Up to 8 feet.
    Applies: Side and rear yard setbacks; above 6 feet the fence must be see-through, such as wire or lattice, unless a fence permit is granted.
    § 18.104.270 · code text
    Fences up to eight feet in height are permitted in side and rear yard setbacks.
Permit
  • Yes. A fence permit is required.
    Applies: A fence that needs a building permit and is in the road setback.
    § 18.104.270 · code text
    No structure (i.e., a fence requiring a building permit) shall be located within the road setback unless a fence permit is obtained

Who this affects

HomeownersContractorsDesigners

Frequently asked questions

How tall can a fence be in Napa County?

County rule: fences are limited to 4 ft in front yard setbacks and 8 ft in side and rear setbacks, see-through above 6 ft.

General information, not legal advice.

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Napa County Municipal Code — full text