4340 N Monticello Ave
This building has far more open problems than almost any other in the neighborhood. Renters here report frequent, slow-to-fix problems. Get repair promises in writing and check the unit before signing.
This building has 23 building violations (7y), above the Irving Park average of 0.9.
What's in the 4340 N Monticello Ave report
| Units | 2 |
|---|---|
| Year built | 1896 |
| Stories | — |
| Building area | 2,162 sq ft |
| Property class | 211 |
| PIN (Cook County parcel) | 13143060260000 |
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, 1896 residential building at 4340 N Monticello Ave in Chicago's Irving Park neighborhood, owned by R Wallin & S Sundblom, has experienced a notable number of maintenance and compliance issues over the past seven years. Most concerning are the six open building code violations recorded between May and January 2026, all categorized as complaint-driven inspections, suggesting ongoing regulatory scrutiny of the property's condition. The building has also generated substantial service requests during this period, totaling 53, with the most recent activity in 2026 centering primarily around yard waste management, as evidenced by five consecutive yard waste pick-up requests between May 9 and June 15, 2026. While there was one rodent baiting complaint recorded in May 2026 that was closed, the persistent pattern of yard waste management issues and multiple open building code violations indicate continuing challenges with property maintenance and compliance.
AI-generated · may contain errors · check the source data tables below
How 4340 N Monticello 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 3714 buildings in this neighborhood, 3565 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.
4340 N Monticello Ave apartment reviews
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4340 N Monticello Ave event timeline
Building violations, environmental complaints and enforcement, permits, scofflaw listings, and 311 calls — most recent records in order.
See all 10 events
Full history back to 2025 — violations, complaints, permits, and 311 calls.
Unlock complete timelineFull data for 4340 N Monticello 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