Watsonville, CA Outdoor Lighting: Light Trespass & Shielding (2026)

Section 14-21.070(d) of the Watsonville Municipal Code governs sign illumination, and its light-spill rules are the City's printed standard for light reaching a neighbor from a sign. Subsection (d)(2) requires the light source for externally illuminated signs to be positioned so that light does not shine directly on adjoining properties or cause glare for motorists or pedestrians. Subsection (d)(5) requires, where sign lighting is permitted, only indirect illumination or low-intensity interior illumination. Any permitted sign lighting must be unobtrusive to adjacent properties, and any glare must be directed onto the site. The code prefers light-colored translucent letters and logos on a semi-opaque dark background.

Other lighting limits sit in the same subsection. Nonresidential signs can be internally or externally illuminated except where specifically prohibited, but internal illumination is permitted only when the portion of the sign that appears illuminated is primarily the sign lettering, registered trademark, or logo. Internally illuminated boxes are prohibited, except that the copy of an existing internally illuminated box sign can be replaced with a change of business. Exposed bulbs are not permitted, and internal illumination is prohibited in the Downtown Core and Downtown Gateway.

Section 14-21.060 backs this up with prohibitions on signs which flash, blink, change color, or change intensity when placed on the exterior of a property or visible from outside the premises, and on beacon signs. Section 14-21.020(d) defines a beacon sign as any light with one or more beams directed into the atmosphere or directed at one or more points not on the same lot as the light source, or any light with beams that rotate or move. Exterior neon signs need a Level 2 sign permit under Section 14-21.030(b). Section 14-21.070(b) also requires signs, including broken lighting, to be repaired promptly.