City of Chicago · IL
Chicago publishes an official Building Permits dataset through the Chicago Data Portal. It contains issued permits from 2006 forward and is updated daily, making it useful for checking an issued permit's published status, milestone, dates, address, work description, condition, and contact fields when present. It is an issued-permits dataset, not a complete application, inspection, or later enforcement workflow. SignedOff keeps that boundary visible while monitoring the public data available for your exact permit number.
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Permit office: 311 (within Chicago) or (312) 744-5000
City of Chicago Department of Buildings
121 North LaSalle StreetThe permit categories SignedOff tracks automatically across Chicago Data Portal Building Permits.
The official dataset publishes issued building permits and may include a permit type, work description, location, dates, and the permit's published status and milestone.
Timeline: Varies; no universal review timeline is inferred from the issued-permits dataset.
Electrical Work is one of the permit-type values that can be published in the Chicago dataset. Check the exact record for its stated scope and dates.
Timeline: Varies by scope and review requirements.
Commercial work can appear as an issued permit with a project description and contact details when the City release contains them.
Timeline: Varies; issued-record data does not describe the entire application queue.
Residential permit records are searchable by exact permit number in the official release when published.
Timeline: Varies by project.
Some records include a published permit condition. It should be read as the dataset's current released field, not a complete compliance file.
Timeline: Not applicable.
Example Chicago permit number:
B200481960
Automatic status checks — SignedOff monitors Chicago Data Portal Building Permits for Chicago permits so you don't have to log in every week.
Email alerts when tracked public fields change, with the available detail determined by what Chicago Data Portal Building Permits publishes for that record.
Downloadable PDF reports with QR codes for easy Chicago job-site verification.
Chicago permit timing varies by permit type and review path. The public issued-permit dataset does not expose a single authoritative turnaround or the complete pre-issuance review timeline for every application.
Chicago's official Building Permits dataset is issued-only. A search that finds no row does not prove no application exists, and it should not be treated as a plan-review or inspection result.
The City notes that records later voided or revoked are excluded from this dataset. For that reason, a historical absence is not evidence that a permit was never issued.
A Chicago record can publish both a permit status and a milestone. SignedOff retains both values together rather than replacing one with a generic status label.
The Chicago Data Portal Building Permits is the authoritative source for single-permit lookups and the official status of record in City of Chicago, reachable at https://data.cityofchicago.org/Buildings/Building-Permits/ydr8-5enu/about_data. Third-party permit monitoring services such as SignedOff check the published source on a recurring schedule to detect status changes and other available record updates. The exact fields vary by jurisdiction and record type, so the official source remains the place to confirm issuance, inspections, conditions, and close-out.
Building permit data for Chicago is also available programmatically through the Chicago Permit API, with structured status and data-freshness fields, plus additional fields where the jurisdiction publishes them.
For a single permit lookup or anything requiring official confirmation — issuance, occupancy sign-off, final inspection — the Chicago Data Portal Building Permits is the source of record. Go directly to the City of Chicago portal for those.
For ongoing monitoring across multiple Chicago permits, a third-party service such as SignedOff reduces manual lookups and surfaces published status changes by email. The typical use case is a contractor, architect, or project manager with several active Chicago jobs across different systems or stages where checking each official source daily is impractical.
Both tools draw from the same underlying permit record — the Chicago Data Portal Building Permits is always the system of record; SignedOff is a monitoring layer on top of it.
The issued-permits dataset does not establish a reliable citywide review timeline. Timing varies by scope and review path, so use the record and City guidance for project-specific planning.
Use the exact permit number in Chicago's official Building Permits data portal. SignedOff performs a bounded exact lookup and shows the published permit status and milestone when they are present.
A representative published permit is B200481960. Permit formats can overlap with other jurisdictions, so SignedOff does not automatically assign every B-number to Chicago without confirmation.
No. It is an issued-permits dataset. It does not provide a complete pre-issuance application workflow, and it should not be used to infer inspection outcomes that are not in the released fields.
The official release excludes permits later voided or revoked, and an item may also be outside the issued-record scope. Contact the City for the authoritative project file.
The official data portal describes the Building Permits dataset as updated daily. A daily refresh is not a guarantee of immediate transaction-level updates.
When published, SignedOff can retain status, milestone, type, issued and application-start dates, address, work description, permit condition, contact details, and the official source link.
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