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City data

Building Violations

Published by City of Chicago · Updated 10/30/2026 · Daily

Last updated
10/30/2026
First published 01/26/2018
Update frequency
Daily
Formats
4
CSV, JSON, GeoJSON
Coverage
Chicago
City in Illinois

About this dataset

Violations issued by the Department of Buildings from 2006 to the present. Lenders and title companies, please note: These data are historical in nature and should not be relied upon for real estate transactions. For transactional purposes such as closings, please consult the title commitment for outstanding enforcement actions in the Circuit Court of Cook County or the Chicago Department of Administrative Hearings. Violations are always associated to an inspection and there can be multiple violation records to one inspection record. Related Applications: Building Data Warehouse http://www.cityofchicago.org/city/en/depts/bldgs/provdrs/inspect/svcs/building_violationsonline.html. The information presented on this website is informational only and does not necessarily reflect the current condition of the building or property. The dataset contains cases where a respondent has been found to be liable as well as cases where the respondent has been found to be not liable.

Files and access

Links open the official government source

API endpoint: https://data.cityofchicago.org/resource/22u3-xenr.json

Links open outside websites we do not control.

Frequently asked questions

Who publishes Building Violations?
City of Chicago publishes this dataset on Chicago Data Portal.
How often is it updated?
The publisher lists the update frequency as daily. The last update was on 10/30/2026.
How do I download it?
It is available as CSV, JSON, GeoJSON, XML. Use the links in Files and access, which open the official government source.

Where this catalog comes from

Catalog checked 10/30/2026

We list dataset descriptions only. Downloads and APIs link straight to the official government source, which holds the current version and its terms of use.

Source: Chicago Data Portal and Data.gov · Last updated 10/30/2026 · Listing only; the data stays with the publisher

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