1840 W Patterson Chicago
A handful of records on file over the last seven years, and our model predicts a high risk of further maintenance problems in the next 12 months. A few records worth reading before you sign. Check whether they were closed out, and ask what was actually fixed.
This building has 1 building violations (7y), above the North Center average of 0.5.
What's in the 1840 W Patterson Chicago report
| Units | 12 |
|---|---|
| Year built | 1918 |
| Stories | — |
| Building area | — |
| Property class | 315 |
| PIN (Cook County parcel) | 14192260050000 |
Registered owner per Cook County Assessor records.
Landlord portfolio
Other Chicago properties this owner holds, with a risk rating for each.
Unlock complete reportThe 12-unit residential building at 1840 W Patterson in the North Center neighborhood, owned by J Corboy, has a documented history spanning several years since its construction in 1918. During the past seven years, the property has maintained a relatively low record of major issues, with only one building code violation noted in November 2021 related to a permit inspection, which has since been resolved. The property has experienced a total of 25 service requests through the 311 system, with the most recent activity occurring in June 2026, including multiple tree debris clean-up requests and an open water lead test kit request filed in February 2026. The building's service request history demonstrates recurring seasonal maintenance needs, particularly for yard waste management, as evidenced by multiple closed requests for yard waste pick-up in late 2025. While the property has had regular interactions with city services, primarily for environmental and waste management concerns, there is no recorded pattern of serious building violations or safety-related issues in recent years.
AI-generated · may contain errors · check the source data tables below
How 1840 W Patterson Chicago's risk score is calculated
We trained a model on 7 years of Chicago code enforcement data — building violations, 311 complaint history, environmental enforcement, and owner track records. It estimates the probability that the City of Chicago will find a code violation at this address in the next 12 months. Lower % = safer.
What the score means for you
Lower risk — safer than most nearby
City inspectors rarely find violations here. Strong maintenance history and a clean complaint record.
Typical — about average for the neighborhood
Some past violations or complaints on record. Worth asking the landlord about any open issues before signing.
Higher risk — riskier than most nearby
Elevated violation and complaint history. City inspectors have found issues here before and are statistically likely to again.
Out of 2652 buildings in this neighborhood, 2652 are predicted to be safer. The band is relative to this neighborhood, so a share of every neighborhood falls in each colour.
violation
likely
What's driving this score
The data points that most influenced this building's risk rating — ranked by the weight the model placed on each one.
1840 W Patterson Chicago apartment reviews
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1840 W Patterson Chicago event timeline
Building violations, environmental complaints and enforcement, permits, scofflaw listings, and 311 calls — most recent records in order.
See all 4 events
Full history back to 2021 — violations, complaints, permits, and 311 calls.
Unlock complete timelineFull data for 1840 W Patterson Chicago apartments
Chicago public datasets for this parcel — building violations, permits, 311 calls, environmental complaints and enforcement, scofflaw listings, and vacant building registrations.
What this is
Violations issued by the City of Chicago Department of Buildings against this parcel.
| Violation # | Date | Category | Status | Address |
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What this is
Violations issued for failure to register or maintain a vacant or abandoned building.
| Docket # | Violation # | Issued | Department | Type | Disposition | Total Fines |
|---|---|---|---|---|---|---|
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What this is
Building permits issued by the City of Chicago for new construction, alterations, and repairs at this parcel.
| Permit # | Issued | Status | Description |
|---|---|---|---|
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What this is
Chicago 311 service requests recorded at this parcel — maintenance complaints and quality-of-life requests.
| SR # | Created | Type | Department | Status |
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What this is
Environmental complaints filed about this property with the City of Chicago.
| Complaint # | Date | Type | Inspector | Resolution | Resolved |
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What this is
Formal environmental enforcement cases brought against this property.
| Case # | Date | Type | Violation | Disposition | Status | Fine |
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Cancel anytime · Data sourced from the City of Chicago Department of Buildings, Chicago 311, Cook County Assessor & the Chicago Data Portal