Santa Clarita, CA Sign Regulations: Window Signs (2026)

080 of the Unified Development Code regulates every sign on private property in Santa Clarita, and subsection (U) is the specific rule for window signs. The text permits window signs in all zones, but limits their combined area to twenty-five percent of a single window, or of a set of adjoining windows that share one street frontage; a storefront with several windows in a row is measured as one coverage pool rather than window-by-window. The rule exempts merchandise displays: if lettering or graphics are incorporated into a physical product display rather than printed as a stand-alone sign, they do not count against the twenty-five percent cap.

Subsection (U)(1) also limits what a window sign can say, permitting only the business name, business logos, and a description of services incidental to the business, which keeps the display exemption from becoming a loophole for price lists or promotional copy. The broader prohibited-signs list in subsection (V) reinforces this by barring most temporary signs outright and requiring approval for anything with flashing lights, exposed bulbs over 450 lumens, or an electronic readerboard. Enforcement runs through subsection (W): an illegal window sign draws written notice from the Director describing the violation, with at least fifteen days to remove or fix it before the order can be appealed to the Planning Commission under subsection (X).

If the City judges a sign unsafe, it can remove the sign immediately without prior notice, and the permit holder, tenant, or property owner is billed for removal and storage, with the sign held until those costs are paid.