612 W Patterson Chicago
This building has a substantial enforcement record over the last seven years, and our model predicts continuing maintenance failures over 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 5 building violations (7y), above the Lake View average of 1.0.
What's in the 612 W Patterson Chicago report
| Units | 63 |
|---|---|
| Year built | 1926 |
| Stories | — |
| Building area | — |
| Property class | 391 |
| PIN (Cook County parcel) | 14211080160000 |
Registered owner per Cook County Assessor records.
Landlord portfolio
Other Chicago properties this owner holds, with a risk rating for each.
Unlock complete reportThe Patterson Building at 612 W Patterson in Lake View is a 63-unit, 1926 construction currently owned by Patterson Building LLC. The property has experienced a notable increase in activity over recent years, with five building code violations recorded between 2025-2026, all of which remain unresolved as of October 2023. These violations include three complaint-driven inspections and two permit-related inspections from July and December 2025. The building's service request history shows 27 total 311 calls in the past seven years, with recent activity showing a mix of infrastructure and maintenance concerns. In 2026, there have been multiple tree planting requests (both from April and currently open), a completed rodent baiting/rat complaint in February, an uncleared sidewalk snow complaint in February, and a parking code enforcement review in June which has been closed. While the property has maintained regular communication with city services, the accumulation of unresolved building code violations and recent maintenance issues may indicate emerging property management challenges that warrant attention.
AI-generated · may contain errors · check the source data tables below
How 612 W Patterson Chicago'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 3452 buildings in this neighborhood, 3279 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.
612 W Patterson Chicago apartment reviews
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612 W Patterson Chicago event timeline
Building violations, environmental complaints and enforcement, permits, scofflaw listings, and 311 calls — most recent records in order.
See all 10 events
Full history back to 2025 — violations, complaints, permits, and 311 calls.
Unlock complete timelineFull data for 612 W Patterson Chicago 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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Cancel anytime · Data sourced from the City of Chicago Department of Buildings, Chicago 311, Cook County Assessor & the Chicago Data Portal