A building code violation in Chicago is a condition in or on a building that the Department of Buildings says breaks the Chicago Construction Codes. For buildings that already exist, the main rule set is Title 14X, which requires the exterior to be kept in good repair, structurally sound and sanitary. The City sorts violations into three levels, from maintenance warnings to dangerous conditions that go to court.
A building code violation in Chicago is a condition the City says breaks its construction codes, written up on a notice that goes to the owner. It can be a failing porch, open mortar joints, a missing smoke detector, or work done without a permit. It starts when an inspector reports what they saw, and most cases are heard in a civil proceeding, not criminal court (City of Chicago).
What counts as a building code violation?
Chicago's building rules are a set of titles in the Municipal Code, called the Chicago Construction Codes (City of Chicago). For buildings that already exist, the title that matters most is Title 14X, Minimum Requirements for Existing Buildings. It replaced the older maintenance chapter, 13-196, on July 1, 2020 (City of Chicago).
Title 14X says the exterior of a structure must be maintained in good repair, structurally sound and sanitary. The unsafe conditions it lists include masonry joints that are not weather resistant or water tight, veneer, cornices and trim that are not properly anchored, and exterior stairs, decks, porches and balconies, including guards and handrails, that are not structurally sound (Title 14X). On a Chicago brick two-flat, that covers most of what people call a violation. See the most common violations on two-flats.
How are violations sorted?
A Department of Buildings supervisor sets the enforcement level of each case (City of Chicago):
| Notice | What it means | Where it goes |
|---|---|---|
| "20" | Maintenance violation | Warning notice |
| "50" | Life safety, not dangerous | Department of Administrative Hearings |
| "80" | Life safety, dangerous and hazardous | Circuit Court of Cook County |
Most cases start with a complaint. The Department reviews every 311 complaint at the start of each business day and decides which need an immediate inspection (City of Chicago).
What does a violation notice ask you to do?
The notice generally tells you the alleged violation, the date, time and place it occurred, and your options, including whether you must appear. If it says you must appear, it states the date, time and place, and ignoring it can lead to a default judgment (City of Chicago).
So the working definition is practical: a violation is a written claim by the City that something about your building does not meet the code, with a process attached. Fix the real condition, keep proof, and show up. What a Chicago notice really says goes line by line, and the Chicago building violations guide covers the whole path.
Got a notice and not sure what it means? Our violations team can read it with you and look at the building.
Common questions
Cases at the Department of Administrative Hearings are civil proceedings. The 2019 code text also allows up to six months of incarceration when the City specifically seeks it, in addition to other penalties. For a legal opinion on your case, talk to an attorney.
A Department of Buildings inspector reports it, and a supervisor sets the enforcement level of the case. Questions about why you were cited go to the Department of Buildings, not the hearings department.
Fixing it is required, but it does not close the case on its own. The hearing is where you show proof of correction. Bring your permit, if one was needed, and before and after photos.
Sources
- City of Chicago, Department of Buildings and Department of Law: Building Code Violation Enforcement Process (PDF)
- City of Chicago: Code Modernization Ordinance, including Title 14X Minimum Requirements for Existing Buildings (PDF)
- City of Chicago, Department of Buildings: Chicago Construction Codes
- City of Chicago, Department of Administrative Hearings: How to Prepare for a Hearing
- City of Chicago, Department of Administrative Hearings: What to Expect at a Hearing
- City of Chicago: Title 14A Administrative Provisions, 2019 posted text (PDF)
Facts last checked: October 7, 2026.
This article explains general rules and common situations in Chicago. It is not legal advice, and City rules change. For a specific property, check with the Chicago Department of Buildings or a licensed professional.