3900 W Diversey Ave
Nothing on record for this building in the last seven years. Our model still sees a moderate chance of maintenance problems in the next 12 months, from the owner's wider portfolio and the surrounding area rather than from anything recorded here. 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 Avondale average of 0.6.
The bar and the rating point different ways because they measure different things: the bar counts building violations already on file, the rating forecasts the next 12 months.
What's in the 3900 W Diversey Ave report
| Units | 4 |
|---|---|
| Year built | 1894 |
| Stories | — |
| Building area | 3,276 sq ft |
| Property class | 211 |
| PIN (Cook County parcel) | 13261240270000 |
Registered owner per Cook County Assessor records.
Landlord portfolio
Other Chicago properties this owner holds, with a risk rating for each.
Unlock complete reportThe four-unit residential building at 3900 W Diversey Ave in Avondale, constructed in 1894, has experienced a notable number of service interactions and violations over the past seven years. The property, currently under ownership classified as "TAXPAYER OF," has racked up a staggering 2,228 building violations, 8,731 service requests, and 338 building permits during this period, indicating significant ongoing maintenance and compliance challenges. More recent records from 2025 show continuing maintenance issues, with multiple reports of sewer cleaning inspections in October of that year, as well as water street complaints and repeated graffiti removal requests throughout the year. The building's environmental record shows 10 enforcement actions and 33 complaints, suggesting potential concerns with environmental compliance. Additionally, there have been three violations related to house-sharing activities, though these appear relatively infrequent compared to other issues. While the property's extensive service request history includes a variety of concerns, the most recent focus appears to be on graffiti and sewer-related issues, with multiple requests for removal and cleaning services occurring throughout 2025.
AI-generated · may contain errors · check the source data tables below
How 3900 W Diversey 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 3681 buildings in this neighborhood, 2908 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.
3900 W Diversey Ave apartment reviews
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3900 W Diversey Ave event timeline
Building violations, environmental complaints and enforcement, permits, scofflaw listings, and 311 calls — most recent records in order.
See all 3 events
Full history back to 2021 — violations, complaints, permits, and 311 calls.
Unlock complete timelineFull data for 3900 W Diversey 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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Unlock complete reportHow 3900 W Diversey 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