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Building Code Scofflaw List

Published by City of Chicago · Updated 10/01/2026 · Twice a year

Last updated
10/01/2026
First published 03/03/2022
Update frequency
Twice a year
Formats
4
CSV, JSON, GeoJSON
Coverage
Chicago
City in Illinois

About this dataset

Chicago's Building Code Scofflaw Ordinance (Section 2-92-416 of the Municipal Code of Chicago) prohibits the owners of buildings that are identified as "priority buildings with serious and chronic code violations" from being awarded City contracts, receiving financial assistance from the City, or having certain applications accepted or processed by the City. Buildings on the list are also subject to follow-up inspections by the Department of Buildings at least every 12 months, and once removed from the list, continuing inspections until the building receives two consecutive inspections, at least six months apart, during which no serious violations are found. The owners of buildings included on the list are designated as "building code scofflaws." Pursuant to the ordinance, as amended in 2021, lists of buildings are published on September 1 and March 1 of each year and lists of owners associated with those buildings are published one month later. The structure of this dataset was modified on 9/1/2021 to be consistent with the amended ordinance.

Files and access

Links open the official government source

API endpoint: https://data.cityofchicago.org/resource/crg5-4zyp.json

Links open outside websites we do not control.

Frequently asked questions

Who publishes Building Code Scofflaw List?
City of Chicago publishes this dataset on Chicago Data Portal.
How often is it updated?
The publisher lists the update frequency as twice a year. The last update was on 10/01/2026.
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 10/31/2026

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 10/31/2026 · Listing only; the data stays with the publisher

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