320 W 30Th St
This building has a higher-than-average number of open problems nearby. Few open issues; problems get fixed quickly. A reasonable bet for a smooth tenancy.
This building has 0 building violations (7y), at or below the Armour Square average of 0.7.
What's in the 320 W 30Th St report
| Units | 2 |
|---|---|
| Year built | 1979 |
| Stories | — |
| Building area | 2,520 sq ft |
| Property class | 211 |
| PIN (Cook County parcel) | 17284250310000 |
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 320 W 30th Street in the Armour Square neighborhood was constructed in 1979 and is currently owned by Jo Ann Duncker and Maria. The property has maintained a relatively low volume of municipal service requests over the past seven years, with a total of six reported issues, all of which originated from the current owners. The most recent documented incident was a graffiti removal request in April 2026, while the most significant ongoing concern appears to be a tree-related issue, with an open tree removal inspection request from September 2025. Prior to this, there were three other tree removal inspection requests (two in May 2025 and one in September 2025) that have been successfully resolved. The building has also had minimal waste management-related matters, including blue recycling cart service requests in September 2025 and one tree trim request in September 2025, though the city has since indicated that this type of request is no longer being accepted. While the property has experienced several tree management issues requiring inspection and removal services, the overall service request history suggests these have been addressed promptly, with only one matter currently outstanding as of October 2023.
AI-generated · may contain errors · check the source data tables below
How 320 W 30Th 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
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 508 buildings in this neighborhood, 15 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.
320 W 30Th St apartment reviews
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320 W 30Th St event timeline
Building violations, environmental complaints and enforcement, permits, scofflaw listings, and 311 calls — most recent records in order.
See all 5 events
Full history back to 2025 — violations, complaints, permits, and 311 calls.
Unlock complete timelineFull data for 320 W 30Th 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.
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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.
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What this is
Chicago 311 service requests recorded at this parcel — maintenance complaints and quality-of-life requests.
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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