1644 N Mason Ave 1
This building has a substantial enforcement record over the last seven years, and our model sees a moderate chance of more in the next 12 months. Read the records below before you sign. Ask which issues were resolved, get repair commitments in writing, and inspect the unit yourself.
This building has 6 building violations (7y), above the Austin average of 1.6.
What's in the 1644 N Mason Ave 1 report
| Units | — |
|---|---|
| Year built | 1922 |
| Stories | — |
| Building area | 2,248 sq ft |
| Property class | 211 |
| PIN (Cook County parcel) | 13324100180000 |
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 1644 N Mason Ave in Austin, owned by Brendalyn Terrell and constructed in 1922, currently shows multiple concerning patterns in its recent history. Most notably, there are six unresolved building code violations recorded between October 2023 and May 2024, all of which were initiated through complaint-driven inspections, indicating ongoing issues that have not yet been addressed. The building's documented history also includes two 311 service requests in the past seven years: a blue recycling cart request made in December 2025, which was closed, and a building violation report submitted in April 2024, which was also closed. While the exact nature of the building violations and their impact on resident conditions remain unspecified in the provided data, the accumulation of open violations, particularly within the last year, suggests persistent regulatory compliance challenges. The building's permit activity appears minimal over the past seven years, with only one permit recorded, though this does not necessarily reflect on building conditions.
AI-generated · may contain errors · check the source data tables below
How 1644 N Mason 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
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 7223 buildings in this neighborhood, 6356 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.
1644 N Mason Ave 1 apartment reviews
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1644 N Mason Ave 1 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 2021 — violations, complaints, permits, and 311 calls.
Unlock complete timelineFull data for 1644 N Mason 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.
| 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.
| Docket # | Violation # | Issued | Department | Type | Disposition | Total Fines |
|---|---|---|---|---|---|---|
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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