1820 W 21St St 1
Nothing on record for this building in the last seven years, and our model puts it at a low risk of maintenance problems over the next 12 months. 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 1820 W 21St St 1 report
| Units | 4 |
|---|---|
| Year built | 1924 |
| Stories | — |
| Building area | 2,014 sq ft |
| Property class | 211 |
| PIN (Cook County parcel) | 17194190330000 |
Registered owner per Cook County Assessor records.
Landlord portfolio
Other Chicago properties this owner holds, with a risk rating for each.
Unlock complete reportThe four-unit residential building at 1820 W 21st Street in Chicago's Lower West Side, constructed in 1924, is currently owned by 'TAXPAYER OF'. The property's recent history shows two 311 service requests in 2024, both of which were resolved—one regarding a street light outage and another concerning tree trimming, though it's worth noting the city has suspended acceptance of tree trim requests. Over the past seven years, the building has had a notably high volume of recorded incidents, totaling 8,731 service requests and 2,228 building violations. These concerning statistics suggest persistent maintenance and compliance challenges. The property has also experienced environmental issues, with 10 enforcement actions and 33 complaints filed during the same period, though these represent a small fraction of the total incidents. Additionally, there have been three violations related to house-sharing activities, indicating potential issues with unauthorized rental practices. On a more positive note, the building has obtained 338 permits over the past seven years, which may reflect ongoing maintenance and improvements, though the high permit number should be viewed in the context of the significant violation and complaint history.
AI-generated · may contain errors · check the source data tables below
How 1820 W 21St St 1'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, 110 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.
1820 W 21St St 1 apartment reviews
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1820 W 21St St 1 event timeline
Building violations, environmental complaints and enforcement, permits, scofflaw listings, and 311 calls — most recent records in order.
See all 2 events
Full history back to 2022 — violations, complaints, permits, and 311 calls.
Unlock complete timelineFull data for 1820 W 21St St 1 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 1820 W 21St St 1 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