Council adopts downtown sign rule changes to allow larger wall signs and extend monument sign zones

The Dubuque City Council on July 21 adopted a text amendment to the Unified Development Code changing sign regulations in the C‑5 central business district.

The amendment permits wall signage up to 10% of a building wall area or 100 square feet per business, whichever is greater, and removes the prior single‑sign‑per‑frontage limit so long as the total area remains within the cap. The change aligns C‑5 wall signage standards with allowances already in other commercial and industrial districts. The amendment also extends the permitted range for monument (freestanding) signs on Main Street southward from Tenth Street to Fourth Street, creating a consistent monument‑sign corridor through the downtown C‑5 district.

City planning staff told the council the change responds to business feedback that current allowances were too limited for larger facades and that a percentage‑based cap reduces confusing counts of separate sign elements. Staff said projecting signs would still be limited (generally one 25‑square‑foot projecting sign per business per frontage) and that internally illuminated or halo‑lit signs would be treated differently than older plastic cabinet signs frequently restricted in historic districts.

Councilmembers asked about historic preservation and illumination. Staff said the amendment had not been reviewed by the Historic Preservation Commission but that the unified development code update and forthcoming technical report will address historic district relationships; staff described examples where special approvals previously applied (for instance, marquee/electronic signs or other variances) and said the amendment should reduce the number of sign variances needed.

The Zoning Advisory Commission reviewed the amendment on July 2 and recommended approval 5‑0. Council suspended readings and passed the ordinance on final passage with a 7‑0 vote.