1817 W Berwyn 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 Lincoln Square average of 0.6.
What's in the 1817 W Berwyn Ave report
| Units | 3 |
|---|---|
| Year built | 1904 |
| Stories | — |
| Building area | 2,385 sq ft |
| Property class | 211 |
| PIN (Cook County parcel) | 14072220090000 |
Registered owner per Cook County Assessor records.
Landlord portfolio
Other Chicago properties this owner holds, with risk grades for each.
Unlock complete reportThe three-unit residential building at 1817 W Berwyn Ave in Lincoln Square, owned by Nicholas Dehnert, was constructed in 1904 and has experienced several notable events throughout its history. Most concerning is the recent spike in service requests in 2025, with six recorded incidents including a fly dumping complaint, sewer cleaning inspection, garbage cart maintenance, and an inspection of the public way. The property has also undergone a water lead test kit request in 2024, indicating potential concerns about water quality.
AI-generated · may contain errors · check the source data tables below
How 1817 W Berwyn 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 2564 buildings in this neighborhood, 1641 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.
1817 W Berwyn Ave apartment reviews
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1817 W Berwyn Ave event timeline
Building violations, environmental complaints and enforcement, permits, scofflaw listings, and 311 calls — most recent records in order.
See all 15 events
Full history back to 1995 — violations, complaints, permits, and 311 calls.
Unlock complete timelineFull data for 1817 W Berwyn 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.
| Violation # | Date | Category | Status | Address |
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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.
| Permit # | Issued | Status | Description |
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What this is
Chicago 311 service requests recorded at this parcel — maintenance complaints and quality-of-life requests.
| SR # | Created | Type | Department | Status |
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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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