6303 N Mozart St
This building has more problems than most buildings in this neighborhood. Few open issues; problems get fixed quickly. A reasonable bet for a smooth tenancy.
This building has 1 building violations (7y), at or below the West Ridge average of 1.2.
What's in the 6303 N Mozart St report
| Units | 5 |
|---|---|
| Year built | 1953 |
| Stories | — |
| Building area | 6,712 sq ft |
| Property class | 211 |
| PIN (Cook County parcel) | 13011070180000 |
Registered owner per Cook County Assessor records.
Landlord portfolio
Other Chicago properties this owner holds, with risk grades for each.
Unlock complete reportThe five-unit residential building at 6303 N Mozart St in Chicago's West Ridge neighborhood was constructed in 1953 and is currently owned by Minh Ong. The property's historical record over the past seven years shows relatively minimal code violations, with only one documented building violation from April 2025 related to a periodic routine inspection that remains unresolved as of the current date. The building has generated a total of 15 service requests through the city's 311 system during this period, with the most recent cluster of reports in June 2026 predominantly related to tree issues, including three open requests for tree debris clean-up and an emergency situation. Prior to these recent tree-related incidents, the property experienced several maintenance and safety-related issues, including a closed porch inspection request in June 2026, a graffiti removal request that was resolved in April 2026, and a snow removal complaint regarding uncleared sidewalks from February 2026. While the building's violation and service request history is not extensive, the concentration of recent tree-related issues and an unresolved building violation warrant some attention to the property's maintenance and safety responsiveness.
How 6303 N Mozart 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 3105 buildings in this neighborhood, 2267 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.
6303 N Mozart St apartment reviews
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6303 N Mozart St event timeline
Building violations, environmental complaints and enforcement, permits, scofflaw listings, and 311 calls — most recent records in order.
See all 6 events
Full history back to 2025 — violations, complaints, permits, and 311 calls.
Unlock complete timelineFull data for 6303 N Mozart 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