1820 W Berwyn Ave
Nothing on record for this building in the last seven years. Our model still sees a moderate chance of maintenance problems in the next 12 months, from the owner's wider portfolio and the surrounding area rather than from anything recorded here. No public enforcement record to go on. Walk the building, ask the current tenants how repairs get handled, and get any promises in writing.
This building has 0 building violations (7y), at or below the Lincoln Square average of 0.6.
The bar and the rating point different ways because they measure different things: the bar counts building violations already on file, the rating forecasts the next 12 months.
What's in the 1820 W Berwyn Ave report
| Units | 2 |
|---|---|
| Year built | 1893 |
| Stories | — |
| Building area | 1,520 sq ft |
| Property class | 211 |
| PIN (Cook County parcel) | 14072170160000 |
Registered owner per Cook County Assessor records.
Landlord portfolio
Other Chicago properties this owner holds, with a risk rating for each.
Unlock complete reportThe two-unit residential building at 1820 W Berwyn Ave in Lincoln Square, owned by Wilma C. Dolsen, has been standing since 1893 and has generated a modest number of service requests and permits over the past seven years. The most recent and concerning pattern of service requests pertains to tree-related issues, with two open requests in May 2026 for tree debris clean-up and tree removal inspection, following a closed tree emergency earlier that month. The building has also been subject to various other municipal service requests, including an abandoned vehicle complaint (closed) in May 2026, a pet wellness check (closed) in February 2026, and a closed vacant/abandoned building complaint in October 2025. While the frequency of service requests has increased recently, particularly in 2026, most of these issues appear to be related to external factors rather than building-specific problems. The property's documented history includes one environmental complaint for noise dating back to March 2010, though this complaint pre-dates the current ownership period by approximately 13 years. The building's permit activity over the past seven years has been minimal, with only two permits issued, though this alone is not necessarily indicative of any property concerns.
AI-generated · may contain errors · check the source data tables below
How 1820 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
Lower risk — safer than most nearby
City inspectors rarely find violations here. Strong maintenance history and a clean complaint record.
Typical — about average for the neighborhood
Some past violations or complaints on record. Worth asking the landlord about any open issues before signing.
Higher risk — riskier than most nearby
Elevated violation and complaint history. City inspectors have found issues here before and are statistically likely to again.
Out of 2578 buildings in this neighborhood, 2037 are predicted to be safer. The band is relative to this neighborhood, so a share of every neighborhood falls in each colour.
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.
1820 W Berwyn Ave apartment reviews
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1820 W Berwyn Ave 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 2010 — violations, complaints, permits, and 311 calls.
Unlock complete timelineFull data for 1820 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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