1812 S Jefferson St 1St
This building has significantly more problems than most nearby buildings. Few open issues; problems get fixed quickly. A reasonable bet for a smooth tenancy.
This building has 2 building violations (7y), above the Lower West Side average of 0.9.
What's in the 1812 S Jefferson St 1St report
| Units | 2 |
|---|---|
| Year built | 1878 |
| Stories | — |
| Building area | 3,034 sq ft |
| Property class | 211 |
| PIN (Cook County parcel) | 17213180150000 |
Registered owner per Cook County Assessor records.
Landlord portfolio
Other Chicago properties this owner holds, with risk grades for each.
Unlock complete reportThe two-unit residential building at 1812 S Jefferson St in Chicago's Lower West Side, owned by Jonathan Heinert, is a historic structure built in 1878. Over the past seven years, the property has experienced several notable issues, most recently with two complaint-driven inspections in September 2024, which have since been resolved. The building had a concerning pattern of water pollution incidents in August and September 2022, though these complaints were addressed within a few days of reporting. While there has been only one building permit issued during this period, the property has recorded multiple 311 service requests, totaling nine, with the most recent being an open pothole complaint from May 2026. The service requests also include three separate abandoned vehicle complaints in September 2025, graffiti removal in October 2024, and a porch inspection request in August 2024, all of which have been resolved. The building's violation and complaint history suggests periodic maintenance and safety concerns, though most recent issues have been addressed promptly.
AI-generated · may contain errors · check the source data tables below
How 1812 S Jefferson St 1St'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
Grade A–B — Low risk
City inspectors rarely find violations here. Strong maintenance history and a clean complaint record.
Grade C — Moderate risk
Some past violations or complaints on record. Worth asking the landlord about any open issues before signing.
Grade D–F — High risk
Elevated violation and complaint history. City inspectors have found issues here before and are statistically likely to again.
Out of 3674 buildings in this neighborhood, 2976 are predicted to be safer.
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.
1812 S Jefferson St 1St apartment reviews
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1812 S Jefferson St 1St 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 2022 — violations, complaints, permits, and 311 calls.
Unlock complete timelineFull data for 1812 S Jefferson St 1St 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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Cancel anytime · Data sourced from the City of Chicago Department of Buildings, Chicago 311, Cook County Assessor & the Chicago Data Portal