Rohnert Park, CA Sign Regulations: Window Signs (2026)

100(L), "Window Signs (Permanent)," sets four standards. Area is limited to no more than twenty percent of each glazed area, meaning the twenty percent cap applies window by window rather than as a single building-wide total. Height is confined to within the window frame itself, so a permanent window sign cannot extend onto the surrounding wall or spill above or below the glass. Illumination is not allowed as of right: it requires a conditional use permit, unlike wall or freestanding signs elsewhere in the chapter that may use internal or external lighting subject to ordinary review.

Location is limited to the first and second floors of a building only, so upper-floor windows above the second story cannot carry permanent window signage. 100(L) rather than setting a separate area figure in the table itself, confirming the twenty percent glazed-area cap is the controlling number for those commercial and industrial districts.