Green Bay, WI Sign Regulations: Window Signs (2026)

Section 30-36 governs signage in the General Commercial (C1), Highway Commercial (C2) and Community Center Commercial (C3) districts. All signs need sign authorization unless they're exempt under § 30-6, per § 30-36(1); temporary signs follow § 30-89 instead. Illumination is allowed, but flashing illumination and rotating signs are not, per § 30-36(3), and signs aren't permitted adjacent to residentially zoned areas or over public rights-of-way except with special restrictions. Table 30-2 sets the window-sign figure specifically: "1 per window not exceeding 50% of window area," and the table's note on maximum attached sign area confirms window signs are excluded from that combined wall-and-awning cap, which otherwise runs 200 to 400 square feet in C1/C2 (more for department stores) and up to 640 square feet for large shopping centers in C3.

The same 1-per-window, 50-percent rule appears in Table 30-1 for the mixed-use districts (OR, NC, D1, D2, TND) under § 30-34, so the standard is consistent across most of the city's commercial and mixed-use zoning, not unique to one district. General standards in § 30-5 also apply on top of the district table: signs must be securely mounted, kept free of peeling paint or damaged supports, and any sign the Zoning Administrator finds unsafe or built without required approval gets a written notice, with 30 days to fix it before the city removes or alters it at the owner's cost.