4121 N Mango Ave 2Nd
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 1 building violations (7y), above the Portage Park average of 0.7.
What's in the 4121 N Mango Ave 2Nd report
| Units | 2 |
|---|---|
| Year built | 1924 |
| Stories | — |
| Building area | 2,304 sq ft |
| Property class | 211 |
| PIN (Cook County parcel) | 13174180030000 |
Registered owner per Cook County Assessor records.
Landlord portfolio
Other Chicago properties this owner holds, with risk grades for each.
Unlock complete reportThe two-unit residential building at 4121 N Mango Avenue in Chicago's Portage Park neighborhood, owned by Alexander Velasco, was constructed in 1924 and has had minimal recorded issues over the past seven years. The building's documented history shows only one building code violation, dating back to May 2020, which remains unresolved as of the most recent data. Additionally, there have been 14 service requests associated with the owner during this period, with the majority of recent activity occurring in 2026. The most recent service requests, all from May 2026, pertain to tree debris clean-up, with five separate requests being filed and subsequently closed. Earlier in 2026, there was one tree trim request made in February, though this type of request is no longer being accepted. The building's historical record over the past seven years suggests limited structural or maintenance concerns, with the majority of recent service requests being related to external tree maintenance rather than internal building issues.
How 4121 N Mango Ave 2Nd'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 3910 buildings in this neighborhood, 2972 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.
4121 N Mango Ave 2Nd apartment reviews
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4121 N Mango Ave 2Nd 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 2020 — violations, complaints, permits, and 311 calls.
Unlock complete timelineFull data for 4121 N Mango Ave 2Nd 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.
| 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