3850 N Kostner Ave
Nothing on record for this building in the last seven years, and our model puts it at a low risk of maintenance problems over the next 12 months. No public enforcement record to go on. Walk the building, ask the current tenants how repairs get handled, and get any promises in writing.
This building has 0 building violations (7y), at or below the Irving Park average of 0.8.
What's in the 3850 N Kostner Ave report
| Units | 2 |
|---|---|
| Year built | 1958 |
| Stories | — |
| Building area | 1,716 sq ft |
| Property class | 211 |
| PIN (Cook County parcel) | 13221100280000 |
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 3850 N Kostner Ave in Chicago's Irving Park neighborhood, owned by Lucia Drohobyckyj as Trustee, has been standing since 1958 and has experienced several notable events in recent years. The property has generated a total of nine service requests through the city's 311 system over the past seven years, with multiple issues occurring in 2025 alone. Currently, there are three open service requests from 2026, including a water lead test kit request and an inspection of the public way. In 2025, there were multiple tree-related incidents, including two emergency situations in August and September, and an open tree removal inspection request from July of that year. The building has also experienced some infrastructure concerns, as evidenced by a closed leak investigation from December 2025. While the total number of service requests over seven years is relatively low for a two-unit building, the concentration of tree-related issues and recent water testing concerns warrant attention as the property continues to age and require maintenance.
AI-generated · may contain errors · check the source data tables below
How 3850 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
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 3731 buildings in this neighborhood, 37 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.
3850 N Kostner Ave apartment reviews
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3850 N Kostner Ave event timeline
Building violations, environmental complaints and enforcement, permits, scofflaw listings, and 311 calls — most recent records in order.
See all 2 events
Full history back to 2025 — violations, complaints, permits, and 311 calls.
Unlock complete timelineFull data for 3850 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.
| 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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Unlock complete reportHow 3850 N Kostner Ave compares to the neighborhood
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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