4111 N Kostner Ave
This building has a higher-than-average number of open problems nearby. Few open issues; problems get fixed quickly. A reasonable bet for a smooth tenancy.
This building has 0 building violations (7y), at or below the Irving Park average of 0.9.
What's in the 4111 N Kostner Ave report
| Units | 3 |
|---|---|
| Year built | 1908 |
| Stories | — |
| Building area | 2,318 sq ft |
| Property class | 211 |
| PIN (Cook County parcel) | 13153210060000 |
Registered owner per Cook County Assessor records.
Landlord portfolio
Other Chicago properties this owner holds, with risk grades for each.
Unlock complete reportThe three-unit residential building at 4111 N Kostner Ave in Chicago's Irving Park neighborhood, owned by Paul G Oris, was constructed in 1908 and has been subject to various municipal service requests over the past seven years. The property's recent history is marked by three water-related inquiries, with an open lead water testing request as of June 2026 and a previously closed testing request from September 2025, suggesting ongoing concerns about water quality monitoring. The building's exterior environment has been the subject of attention, with two tree removal inspection requests - one currently open (as of December 2025) and one successfully resolved (September 2025). Other documented service requests include a closed pothole complaint from October 2025 and a general information call to 311 from July 2025. The property's permit activity is minimal, with only one building permit recorded in the past seven years, though this doesn't necessarily indicate any major concerns. The most pressing current issues appear to be related to water testing and tree removal, while previously addressed issues suggest the owner has been responsive to municipal service requirements.
AI-generated · may contain errors · check the source data tables below
How 4111 N Kostner Ave'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
Grade A–B — Low risk
City inspectors rarely find violations here. Strong maintenance history and a clean complaint record.
Grade C — Moderate risk
Some past violations or complaints on record. Worth asking the landlord about any open issues before signing.
Grade D–F — High risk
Elevated violation and complaint history. City inspectors have found issues here before and are statistically likely to again.
Out of 3714 buildings in this neighborhood, 1968 are predicted to be safer.
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.
4111 N Kostner Ave apartment reviews
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4111 N Kostner Ave event timeline
Building violations, environmental complaints and enforcement, permits, scofflaw listings, and 311 calls — most recent records in order.
See all 5 events
Full history back to 2025 — violations, complaints, permits, and 311 calls.
Unlock complete timelineFull data for 4111 N Kostner Ave 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.
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What this is
Violations issued for failure to register or maintain a vacant or abandoned building.
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What this is
Building permits issued by the City of Chicago for new construction, alterations, and repairs at this parcel.
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What this is
Chicago 311 service requests recorded at this parcel — maintenance complaints and quality-of-life requests.
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What this is
Environmental complaints filed about this property with the City of Chicago.
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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