4103 W Fullerton 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 Hermosa average of 0.9.
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 4103 W Fullerton Ave report
| Units | 6 |
|---|---|
| Year built | 1927 |
| Stories | — |
| Building area | 6,385 sq ft |
| Property class | 212 |
| PIN (Cook County parcel) | 13342050390000 |
Registered owner per Cook County Assessor records.
Landlord portfolio
Other Chicago properties this owner holds, with a risk rating for each.
Unlock complete reportThe six-unit residential building at 4103 W Fullerton Ave in Hermosa, built in 1927 and currently owned by Gerardo Santillanes, has a documented history of service requests and environmental issues spanning several decades. Most recently, in 2026, there were multiple service requests in May, primarily related to fly dumping incidents (with three separate complaints) and a tree emergency, followed by an abandoned vehicle complaint. A snow-related sidewalk clearance issue was reported in December 2025. The building's environmental history shows significant concern in July 1994 when multiple air pollution and hazardous materials complaints were filed, resulting in four municipal prosecution tickets, each with a $1,600 fine, under various code violations related to environmental safety. Earlier complaints from 1993 also indicate issues with toxic hazardous materials and improper permits. While the building's recent history shows primarily minor municipal service requests, the clustering of fly dumping complaints in 2026 and the historical environmental violations from the 1990s are notable points of record.
AI-generated · may contain errors · check the source data tables below
How 4103 W Fullerton 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 1618 buildings in this neighborhood, 1359 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.
4103 W Fullerton Ave apartment reviews
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4103 W Fullerton Ave event timeline
Building violations, environmental complaints and enforcement, permits, scofflaw listings, and 311 calls — most recent records in order.
See all 9 events
Full history back to 1993 — violations, complaints, permits, and 311 calls.
Unlock complete timelineFull data for 4103 W Fullerton 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.
| Docket # | Violation # | Issued | Department | Type | Disposition | Total Fines |
|---|---|---|---|---|---|---|
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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 4103 W Fullerton Ave compares to the neighborhood
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