Port St. Lucie, FL Sign Regulations: Window Signs (2026)

04(B)(18) lists window signs among the sign types exempted from the city's sign permitting procedure, but the exemption comes with a hard numeric ceiling: no more than 40 percent of any window or door surface shall be covered with such signs. The ordinance defines a window sign broadly: any sign attached or painted, either permanently or temporarily, on the interior or exterior of a window, glass door, or glass wall, or placed within 12 inches of the window, glass door, or glass wall, so paper posters taped inside the glass count the same as vinyl decals applied outside.

08 repeats the same 40 percent cap for commercial uses and confirms the tighter 20 percent limit that state law imposes on convenience stores. 04(B)(18) also requires that whatever signage is displayed allow a clear and unobstructed view from outside the building and a normal line of sight inside the business establishment, so covering the storefront with opaque advertising, even under 40 percent coverage by area, can still violate the standard if it blocks sightlines. 05, must fit the zoning district's other sign rules, and must be consistent with the code's overall intent.

09(C)(4) gives a nonconforming window sign only eighteen months to be brought into compliance before its use terminates, a shorter grace period than the five-year grandfather clause that applies to other nonconforming signs.