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Marin County · Building on your lot

Signs on homes in Marin County

Marin County's own rules on signs on homes, with the code text for every value.

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

What Marin County's code says

Marin County code What Marin County's code adds
Other temporary signs
  • Up to 16 square feet per lot.
    § 22.28.060 · code text
    Area of all temporary signs at any one time | Max. 16 sq. ft. per lot.
  • No limit on the number of signs, but total sign area may not exceed 16 square feet.
    Applies: All residential zones; temporary signs on private property.
    § 22.28.060 · code text
    Number of Signs | Unlimited except that the total sign area of all temporary signs shall not exceed 16 sq. ft.
  • At most 100 days per year.
    § 22.28.060 · code text
    Wall banners shall not be displayed for more than 30 days per year and other authorized temporary signs shall not be displayed for more than 100 days per year without Temporary Sign Permit approval;
  • Up to 6 square feet.
    § 22.28.060 · code text
    Yard Sign | 6 feet above grade | — | 6 sq. ft. | Installed securely in the ground.
  • At most 15% of the window area.
    § 22.28.060 · code text
    The area of temporary and permanent window signs combined shall not exceed 15% of the area of the window on or within which they are displayed.

Who this affects

HomeownersContractorsDesigners

Frequently asked questions

What signs may I put up at my home in Marin County?

Marin County's code: Up to 16 square feet per lot. (§ 22.28.060); No limit on the number of signs, but total sign area may not exceed 16 square feet. (All residential zones; temporary signs on private property.) (§ 22.28.060).

General information, not legal advice.

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Ask GoCodebook how Marin County's signs on homes rules apply to your situation and get an answer that cites the section.

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Marin County Municipal Code — full text