4925 W Montrose Ave
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 Portage Park average of 0.7.
What's in the 4925 W Montrose Ave report
| Units | 2 |
|---|---|
| Year built | 1898 |
| Stories | — |
| Building area | 1,824 sq ft |
| Property class | 211 |
| PIN (Cook County parcel) | 13164020040000 |
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 4925 W Montrose Ave in Chicago's Portage Park neighborhood, owned by Joseph W Mamczij & Mau and constructed in 1898, has experienced several significant events in recent years, particularly relating to tree maintenance and safety concerns. The property has generated a total of ten 311 service requests over the past seven years, with the most recent being a Finance Parking Code Enforcement Review in April 2026. Between 2024 and 2025, there were multiple tree-related incidents, including three clean-up requests, an emergency situation, and a planting request, all of which were successfully resolved. Of particular importance is an open water lead test kit request from November 2024, which represents a potentially significant health concern that requires attention. The building's service request history shows relatively consistent engagement with city services, though the presence of multiple tree-related issues suggests ongoing landscape management challenges. The 311 request data indicates no recorded violations or safety incidents directly related to the building's structure or systems during this period, though the age of the building (125 years old as of 2023) warrants regular maintenance and monitoring.
AI-generated · may contain errors · check the source data tables below
How 4925 W Montrose Ave'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 3910 buildings in this neighborhood, 1877 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.
4925 W Montrose Ave apartment reviews
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4925 W Montrose Ave 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 4925 W Montrose Ave 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