2140 N Mason 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 Belmont Cragin average of 0.9.
What's in the 2140 N Mason Ave report
| Units | 2 |
|---|---|
| Year built | 1921 |
| Stories | — |
| Building area | 2,070 sq ft |
| Property class | 211 |
| PIN (Cook County parcel) | 13322190430000 |
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 2140 N Mason Ave in the Belmont Cragin neighborhood, owned by Lorena Gomez, has generated 13 service requests over the past seven years, with all requests originating from the current owner. The property, constructed in 1921, has experienced various municipal issues requiring attention, with the most recent incident being a tree emergency reported in June 2026 that remains unresolved. The building has also faced recurring street lighting issues, with two separate street light out complaints registered in September and November 2025, both of which were resolved. Additional infrastructure and service maintenance needs have been documented, including recent requests for garbage cart maintenance and an alley sewer inspection in January 2026, as well as a blue recycling cart inquiry earlier that month. The property's service request history demonstrates regular interaction with city services, primarily concerning municipal infrastructure rather than building-specific issues, though it is worth noting the pattern of street light and lighting infrastructure concerns in the immediate vicinity.
AI-generated · may contain errors · check the source data tables below
How 2140 N Mason 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 4453 buildings in this neighborhood, 1559 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.
2140 N Mason Ave apartment reviews
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2140 N Mason Ave event timeline
Building violations, environmental complaints and enforcement, permits, scofflaw listings, and 311 calls — most recent records in order.
See all 1 events
Full history back to 2022 — violations, complaints, permits, and 311 calls.
Unlock complete timelineFull data for 2140 N Mason 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.
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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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Unlock complete reportHow 2140 N Mason Ave compares to the neighborhood
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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