6125 S Kostner Ave
This building has a substantial enforcement record over the last seven years, and our model predicts continuing maintenance failures over the next 12 months. Read the records below before you sign. Ask which issues were resolved, get repair commitments in writing, and inspect the unit yourself.
This building has 3 building violations (7y), above the West Lawn average of 1.0.
What's in the 6125 S Kostner Ave report
| Units | 2 |
|---|---|
| Year built | 1959 |
| Stories | — |
| Building area | 2,584 sq ft |
| Property class | 211 |
| PIN (Cook County parcel) | 19154150090000 |
Registered owner per Cook County Assessor records.
Landlord portfolio
Other Chicago properties this owner holds, with a risk rating for each.
Unlock complete reportThe two-unit residential building at 6125 S Kostner Ave in the West Lawn neighborhood, owned by Mark Styrzc ula and constructed in 1959, has experienced several notable events in recent years. Most significantly, in April 2024, the property underwent three complaint-driven inspections that resulted in identified violations, though all were resolved promptly. The building's recent history shows a pattern of handling winter weather challenges in late 2025, with three snow-related service requests regarding object/dibs removal recorded in December 2025, all of which were closed. The property has also seen various other municipal service requests, including complaints about abandoned vehicles and city vehicle sticker violations, though these are more related to street management than the building itself. While the building has had three documented code violations in the past seven years, it's worth noting that all recent inspection-related issues were resolved, demonstrating responsiveness to regulatory requirements.
AI-generated · may contain errors · check the source data tables below
How 6125 S 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
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 699 buildings in this neighborhood, 664 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.
6125 S Kostner Ave apartment reviews
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6125 S Kostner Ave event timeline
Building violations, environmental complaints and enforcement, permits, scofflaw listings, and 311 calls — most recent records in order.
See all 8 events
Full history back to 2024 — violations, complaints, permits, and 311 calls.
Unlock complete timelineFull data for 6125 S 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.
| 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