4131 N Mozart St 1
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 Irving Park average of 0.9.
What's in the 4131 N Mozart St 1 report
| Units | 2 |
|---|---|
| Year built | 1908 |
| Stories | — |
| Building area | 1,968 sq ft |
| Property class | 211 |
| PIN (Cook County parcel) | 13133230090000 |
Registered owner per Cook County Assessor records.
Landlord portfolio
Other Chicago properties this owner holds, with risk grades for each.
Unlock complete reportThe property at 4131 N Mozart St in the Irving Park neighborhood is a two-unit residential building owned by Cesar L Mora, dating back to 1908. The building's service request history over the past seven years shows relatively limited interaction with city services, with a total of five documented incidents. Most notably, there were multiple reports of vehicle sticker violations on May 3, 2026, with three separate complaints filed on that same date, all of which have been closed. Of particular concern is an open service request from December 6, 2025, regarding a water lead test kit, which represents an ongoing health-related issue that remains unresolved as of the latest records. The only other documented incident was an abandoned vehicle complaint filed on August 19, 2024, which has since been closed. While the overall number of service requests is low, the presence of an open water lead test kit request warrants attention to the building's water quality management systems.
AI-generated · may contain errors · check the source data tables below
How 4131 N Mozart 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
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 3714 buildings in this neighborhood, 1337 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.
4131 N Mozart St 1 apartment reviews
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4131 N Mozart St 1 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 2024 — violations, complaints, permits, and 311 calls.
Unlock complete timelineFull data for 4131 N Mozart 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.
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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