3712 S Winchester 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 Mckinley Park 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 3712 S Winchester Ave report
| Units | 5 |
|---|---|
| Year built | 1883 |
| Stories | — |
| Building area | 4,476 sq ft |
| Property class | 211 |
| PIN (Cook County parcel) | 17314160270000 |
Registered owner per Cook County Assessor records.
Landlord portfolio
Other Chicago properties this owner holds, with a risk rating for each.
Unlock complete reportThe five-unit residential building at 3712 S Winchester Ave in McKinley Park, owned by Ana Rosa Onate, dates back to 1883 and has experienced several notable events in recent years. The property has generated a total of 12 service requests through the 311 system over the past seven years. Most concerning is an open sewer cave-in inspection request from April 2026, which could potentially impact resident safety and sanitation. The building has also required attention to its exterior and infrastructure, with recent requests including graffiti removal (closed February 2026), a blue recycling cart installation (closed January 2026), and a tree planting request (open July 2025). Additional maintenance needs have been addressed through closed requests for tree trimming (June 2025) and a public way inspection (May 2025). While the total number of service requests is relatively modest for a building of this age and size, the presence of an open sewer inspection request warrants particular attention to ongoing infrastructure concerns.
AI-generated · may contain errors · check the source data tables below
How 3712 S Winchester 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 1411 buildings in this neighborhood, 1228 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.
3712 S Winchester Ave apartment reviews
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3712 S Winchester Ave event timeline
Building violations, environmental complaints and enforcement, permits, scofflaw listings, and 311 calls — most recent records in order.
Full data for 3712 S Winchester 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 3712 S Winchester 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