Reporting a Building Violation in Chicago: What 311 Does

To report building code violations in Chicago, use 311. It is the City's intake for problem buildings, and the Department of Buildings lists the request types it takes: porch safety, construction without a permit, general safety, and vacant or abandoned buildings (City of Chicago). You are reporting to the City, not to the owner, and the Department decides what happens next.

What happens after you report it?

The report does not go into a pile. The Department of Buildings supervisors review all 311 complaints at the start of each business day to decide which need an immediate inspection (City of Chicago). Inspections of occupied buildings are largely complaint-driven, so your report is usually how the process starts.

When the inspector goes out, the job is to verify the complaint. The City's own process says the inspector also checks smoke and carbon monoxide detectors and the ways out of the building, including interior and exterior stairs and porches, and issues violations for what is observed (City of Chicago). That means a report about one problem can lead to a notice listing several. The inspector cannot always get in: the Department may leave a notice, return later, write up exterior violations or close the complaint if it is unfounded (City of Chicago). We explain that in can an inspector enter your building.

What should you tell 311?

Give them what an inspector needs to find the problem:

• The address and which unit or part of the building.
• What you see, in plain words: a leaning porch, loose brick near the roofline, a stair that moves.
• Since when, and whether it is getting worse.
• Photos, if you can take them safely from public property or your own unit, to keep for yourself.

For exterior conditions, Chicago's rules for existing buildings are the yardstick: masonry joints that are not weather tight, cornices and trim that are not anchored, and porches, stairs and balconies that are not sound are all listed as unsafe (Title 14X). You do not need to know the code. Describe what you see.

We could not verify from the City's pages whether 311 offers every language, whether complaints can be anonymous or how complaint status is tracked, so ask when you call. If you need help in Spanish, say so at the start.

Reporting your own building and what comes next

If you are an owner, a report about your building is not the end of the world. It is the start of a process. The sooner you fix the real condition, the sooner it ends. Read how often Chicago inspects buildings, then the Chicago building violations guide. If a notice arrives, our violations team can read it with you and handle the repair and the paperwork.

Common questions

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.