4437 W Thomas St
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 Humboldt Park average of 1.2.
What's in the 4437 W Thomas St report
| Units | 2 |
|---|---|
| Year built | 1923 |
| Stories | — |
| Building area | 1,848 sq ft |
| Property class | 211 |
| PIN (Cook County parcel) | 16033070080000 |
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 4437 W Thomas St in the Humboldt Park neighborhood was constructed in 1923 and is currently owned by Mildred Brownlee, with records showing only one property parcel under her ownership. The building's documented service history over the past seven years reveals a significant pattern of rodent-related issues, with three rat complaints recorded in 2025 alone (May 28, June 16, and June 25), plus additional rodent complaints in 2026 (May 27) and June 10, including one non-related service request for a tree trim that is no longer being accepted. The frequency of these pest-related incidents, particularly clustered between May and June 2025, indicates an ongoing challenge with vermin control in and around the property. Notably, the building's permit activity has been minimal over this period, with only one building permit recorded in the past seven years, and while the 311 service request system shows a total of eight calls for service from the property, there are no recent reports filed after mid-2026, suggesting either a potential decrease in service needs or possibly an incomplete record of more recent issues.
AI-generated · may contain errors · check the source data tables below
How 4437 W Thomas St'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 6229 buildings in this neighborhood, 125 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.
4437 W Thomas St apartment reviews
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4437 W Thomas St 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 4437 W Thomas St 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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Unlock complete reportHow 4437 W Thomas St 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