6403 N Olcott Ave 1
This building has more problems than most buildings in this neighborhood. 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 Edison Park average of 0.6.
What's in the 6403 N Olcott Ave 1 report
| Units | 5 |
|---|---|
| Year built | 1959 |
| Stories | — |
| Building area | 5,158 sq ft |
| Property class | 211 |
| PIN (Cook County parcel) | 09364270160000 |
Registered owner per Cook County Assessor records.
Landlord portfolio
Other Chicago properties this owner holds, with risk grades for each.
Unlock complete reportThe five-unit residential building at 6403 N Olcott Ave 1 in Edison Park, owned by Stefan Wojciechowski, has been standing since 1959 and has generated a relatively modest amount of service requests over the past seven years. The property has had a total of five city service requests during this period, with the most recent two occurring in mid-2025 and all of them having been successfully closed. The nature of these complaints primarily pertains to street maintenance issues, specifically potholes, with a total of three pothole-related complaints filed in both the street and alley locations between March and July 2025. Additionally, there were two other service requests unrelated to the building's condition or safety: one regarding a blue recycling cart in June 2025 and another concerning an abandoned vehicle in August 2024. The limited number of service requests over the seven-year period, particularly those that are primarily related to street conditions and not the building itself, suggests relatively low maintenance concerns about the property itself, though it's worth noting that the most recent requests have been predominantly related to street infrastructure issues.
How 6403 N Olcott Ave 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 203 buildings in this neighborhood, 152 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.
6403 N Olcott Ave 1 apartment reviews
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6403 N Olcott Ave 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 6403 N Olcott Ave 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.
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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