4731 S Kolin Ave
This building has a substantial enforcement record over the last seven years, but recent activity points to a low risk of further maintenance problems in 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 6 building violations (7y), above the Archer Heights average of 0.8.
What's in the 4731 S Kolin Ave report
| Units | 2 |
|---|---|
| Year built | 1961 |
| Stories | — |
| Building area | 2,513 sq ft |
| Property class | 211 |
| PIN (Cook County parcel) | 19102010170000 |
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 4731 S Kolin Ave in Archer Heights, owned by Valentin Hanacek and constructed in 1961, has experienced multiple concerning issues over the past few years. Most notably, there are six unresolved building code violations recorded on February 6, 2026, which are categorized as complaint-driven inspections. The property has also faced recurring water-related problems, with two separate basement water incidents reported via 311 service requests in 2024 (one through 311 City Services and another through the Alderman's office). Environmental concerns include five illegal dumping complaints between 2025-2026, though none of these allegations were substantiated upon investigation, along with one water pollution complaint in April 2025 that also went unresolved.
AI-generated · may contain errors · check the source data tables below
How 4731 S Kolin 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 843 buildings in this neighborhood, 615 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.
4731 S Kolin Ave apartment reviews
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4731 S Kolin Ave event timeline
Building violations, environmental complaints and enforcement, permits, scofflaw listings, and 311 calls — most recent records in order.
See all 14 events
Full history back to 2024 — violations, complaints, permits, and 311 calls.
Unlock complete timelineFull data for 4731 S Kolin 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.
| 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.
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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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