1635 S Jefferson St
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 Lower West Side average of 0.9.
What's in the 1635 S Jefferson St report
| Units | 4 |
|---|---|
| Year built | 1873 |
| Stories | — |
| Building area | 3,780 sq ft |
| Property class | 211 |
| PIN (Cook County parcel) | 17213060190000 |
Registered owner per Cook County Assessor records.
Landlord portfolio
Other Chicago properties this owner holds, with a risk rating for each.
Unlock complete reportThe 1635 S Jefferson Street property is a four-unit residential building located in Chicago's Lower West Side neighborhood, dating back to 1873. The building has generated a total of 11 service requests to the 311 system over the past seven years, with the most recent activity occurring in 2026. The building's service history indicates a range of maintenance and environmental issues, with several open service requests currently under review including two sign repair requests and a blue recycling cart issue from early 2026. The property has experienced various maintenance needs in recent months, including a tree debris clean-up request and an injured animal report, though these incidents have been resolved. Notably, there was a building permit and construction violation recorded in November 2025, which has since been closed. While the frequency of service requests is relatively low considering the building's age, there appears to be an ongoing pattern of signage maintenance needs and environmental service requests that may affect resident experience.
AI-generated · may contain errors · check the source data tables below
How 1635 S Jefferson St'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 3683 buildings in this neighborhood, 2394 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.
1635 S Jefferson St apartment reviews
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1635 S Jefferson St 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 2025 — violations, complaints, permits, and 311 calls.
Unlock complete timelineFull data for 1635 S Jefferson St 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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Cancel anytime · Data sourced from the City of Chicago Department of Buildings, Chicago 311, Cook County Assessor & the Chicago Data Portal