Maui County, HI Sign Regulations: Window Signs (2026)

030 defines a "window sign" as a sign placed on the outside of a window, or inside within three feet of a window, that occupies no more than fifty percent of available window area and is visible from a public right-of-way. 070 repeat that a window sign serving as a business identification, building identification, promotional, or directory sign is not counted toward those tables' quantity limits either. The broader "sign" definition in the same section sweeps in interior displays close to the glass: it covers any device "outside a building or inside within three feet of a window or door" that is clearly visible from a right-of-way, which is why a sign sitting just inside a storefront window is treated the same as one stuck to the glass.

050 backstops the whole chapter with a general prohibition: any sign not specifically authorized by the chapter is prohibited outright, so a window sign covering more than half the window area is not merely non-compliant, it is an unauthorized sign. Window signs used for real estate, promotional, or directory purposes must still meet the size caps set for those specific sign types elsewhere in the chapter when those categories apply.