Outdoor lighting in Yountville: the local rules

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

What Yountville's code says

Yountville code What Yountville's code adds
Light at the property line	0.5 footcandles at the property boundary. Applies: A guideline (IESNA RP-33). § 17.132.040 · code text \| Property Boundary \| 0.5 \| \|
Shielding	Full cut-off, fully shielded lights aimed down, with no light above the horizontal. Applies: All new outdoor lighting, except low-output fixtures. § 17.132.040 · code text All new outdoor lighting shall use full cut-off luminaires with the light source downcast and fully shielded with no light emitted above the horizontal plane, with the following exceptions: May be unshielded if it has an opaque top or sits under an opaque structure. Applies: Fixtures of 400 lumens or less. § 17.132.040 · code text Fixtures that have a maximum output of 400 lumens (equivalent to one 40-watt incandescent bulb) or less, regardless of the number of bulbs, may be left unshielded provided that it has an opaque top or is under an opaque structure to prevent the light from shining directly up. May be partly shielded with a semi-translucent barrier; lamp hidden from off-site, no direct glare, opaque top or cover. Applies: Fixtures of 1,000 lumens or less. § 17.132.040 · code text Fixtures that have a maximum output of 1,000 lumens (equivalent to one 60-watt incandescent bulb) or less may be partially shielded using a semi-translucent barrier, provided that the lamp is not visible from off-site, no direct glare is produced, and the fixture has an opaque top or is under an opaque structure to keep light from shining directly up (e.g., a low-output style wall pack). Must have external shields, aimed no higher than 45 degrees, with no light above the horizontal. Applies: Floodlights; they also may not cause glare or shine on neighboring property or public rights-of-way. § 17.132.040 · code text Floodlights with external shielding shall be angled provided that no light is directed above a 45-degree angle measured from the vertical line from the center of the light extended to the ground, and only if the luminaire does not cause glare or light to shine on adjacent property or public rights-of-way and does not emit light above the horizontal plane. Unshielded floodlights are not allowed. Applies: Floodlights. § 17.132.040 · code text Unshielded floodlights are prohibited.

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What are the outdoor lighting rules for homes in Yountville?

Yountville's code: Full cut-off, fully shielded lights aimed down, with no light above the horizontal. (All new outdoor lighting, except low-output fixtures.) (§ 17.132.040); 0.5 footcandles at the property boundary. (A guideline (IESNA RP-33).) (§ 17.132.040).

Outdoor lighting in Yountville

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