4809 S Langley Ave
Nothing on record for this building in the last seven years, and our model puts it at a low risk of maintenance problems over the next 12 months. 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 Grand Boulevard average of 2.8.
What's in the 4809 S Langley Ave report
| Units | 2 |
|---|---|
| Year built | 1888 |
| Stories | — |
| Building area | 3,150 sq ft |
| Property class | 211 |
| PIN (Cook County parcel) | 20102130050000 |
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 4809 S Langley Ave in Chicago's Grand Boulevard neighborhood is a historic property dating back to 1888, currently owned by Klaus Peter Adam. The property's documented service history over the past seven years shows a total of ten 311 service requests, with the most recent activity occurring in 2026, consisting of two yard waste pick-up requests in May and April of that year. The building experienced a cluster of maintenance-related requests in late 2025, including two tree trim requests in November, a garbage cart maintenance request in October, and a water lead test kit request in September - the latter being particularly noteworthy as it pertains to water quality concerns. While all reported service requests have been officially closed, the concentration of maintenance calls in the latter half of 2025, particularly related to environmental and infrastructure matters, could be of interest to observers of the building's care and upkeep.
AI-generated · may contain errors · check the source data tables below
How 4809 S Langley 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 1174 buildings in this neighborhood, 235 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.
4809 S Langley Ave apartment reviews
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4809 S Langley 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 2022 — violations, complaints, permits, and 311 calls.
Unlock complete timelineFull data for 4809 S Langley 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.
| 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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Cancel anytime · Data sourced from the City of Chicago Department of Buildings, Chicago 311, Cook County Assessor & the Chicago Data Portal