Who publishes Building Permits?

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 10/29/2026.

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.

Checked Oct 30, 2026

City dataHousing & Development

Building Permits

Name: Building Permits
Creator: City of Chicago
Published: 2026-10-26T23:37:11.000Z

Published by City of Chicago · Updated 10/29/2026 · Daily

Official source Download CSV

Last updated: 10/29/2026; First published 10/26/2026
Update frequency: Daily
Formats: 4; CSV, JSON, GeoJSON
Coverage: Chicago; City in Illinois

About this dataset

Note, 10/27/2026: We have added a RESIDENTIAL_UNIT_CHANGE column. See this post for more details. This dataset includes information about building permits issued by the City of Chicago from 2006 to the present, excluding permits that have been voided or revoked after issuance. Most types of permits are issued subject to payment of the applicable permit fee. Work under a permit may not begin until the applicable permit fee is paid. For more information about building permits, see http://www.chicago.gov/permit.

Housing & Development

Files and access

Links open the official government source

CSV downloaddata.cityofchicago.orgCSV
JSON (SODA API)data.cityofchicago.orgJSON
GeoJSONdata.cityofchicago.orgGeoJSON
XMLdata.cityofchicago.orgXML

API endpoint: https://data.cityofchicago.org/resource/ydr8-5enu.json

Links open outside websites we do not control.

Frequently asked questions

Who publishes Building Permits?: 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 10/29/2026.
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.

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Building PermitsCity of DallasPermits issued by the City of Dallas, from January 2018 to the present. Updated daily. Includes permit number, permit type, issue date, contractor, valuation, work description, land use, and property location. For active permit tracking, visit the Dallas Accel
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Building PermitsCity of DetroitResidential and Commerical Building Permits issued by the Buildings, Safety Engineering, and Environmental Department (BSEED). A building permit is the approval given by the Buildings, Safety, Engineering and Environmental Department (BSEED) to complete work o
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Where this catalog comes from

Data.gov CatalogU.S. General Services Administration
State and local open data portalsSocrata Discovery API
State and city CKAN portalsCalifornia, Virginia, Boston, Houston and more
Government ArcGIS Hub sitesCity and county GIS data

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