Chicago, Ill., Mun. Code ch. 13-20 § 13-20-590
Construction contrary to permit (Chicago Building Inspection Code (Chapter 13-20))
Operative Text
It shall be unlawful for any person to erect, alter, maintain or repair any sign, signboard or sign structure or to illuminate any sign, signboard or sign structure contrary to the approved permit. Any such erection, alteration, maintenance or repair shall invalidate the permit. (Added Coun. J. 11-3-99, p. 13842, § 3; Amend Coun. J. 4-24-12, p. 25060, § 3; Amend Coun. J. 4-30-14, p. 80382, § 3; Amend Coun. J. 2-22-17, p. 43876, § 20; Amend Coun. J. 9-6-17, p. 55278, Art. IV, § 18; Amend Coun. J. 3-28-18, p. 74459, Art. V, § 6)
Under Chicago, Ill., Mun. Code ch. 13-20 § 13-20-590, any sign, signboard, or sign structure must be erected, altered, maintained, repaired, or illuminated strictly in accordance with the terms of its approved permit. Deviating from those approved terms is unlawful, and any work done contrary to the permit automatically voids the permit itself. This rule applies to anyone involved in sign-related construction or maintenance activity in Chicago.
Plain English — not legal advice.
Property owners and managers subject to Chicago, Ill., Mun. Code ch. 13-20 § 13-20-590 generally ensure that all sign work—including installation, alteration, maintenance, repair, and illumination—is carried out exactly as described in the approved permit. Compliant operators keep permit documents on file and verify that contractors follow the approved specifications before and during any sign-related work. Any deviation from the permit not only creates a code violation but also renders the permit void, potentially requiring a new permit application before work can continue.
General guidance for property managers — not legal advice for your specific situation. Consult an attorney for advice on your case.
While Chicago, Ill., Mun. Code ch. 13-20 § 13-20-590 primarily governs property owners and contractors, tenants who observe signs being installed or modified in ways that appear inconsistent with posted permits may report concerns to the Chicago Department of Housing or the city's building inspection authorities. Tenants can document discrepancies—such as differences between the approved permit and the actual sign work—as part of any complaint. Tenant-rights organizations familiar with Chicago municipal code can help clarify what options are available when building code violations affect a rental property.
General guidance for tenants — not legal advice for your specific situation. Consult a tenant-rights organization or attorney for advice on your case.
Generated September 18, 2026 — auto-generated, not yet human-reviewed. See /transparency for methodology.
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