845 N Monticello Ave 2
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 Humboldt Park average of 1.2.
What's in the 845 N Monticello Ave 2 report
| Units | 2 |
|---|---|
| Year built | 1924 |
| Stories | — |
| Building area | 2,256 sq ft |
| Property class | 211 |
| PIN (Cook County parcel) | 16023320050000 |
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 building at 845 N Monticello Ave in Humboldt Park, constructed in 1924 and currently owned by Hector Herrera, has experienced several notable events over the past few years. Most significantly, there has been a recurring pattern of rodent-related issues, with five documented rat complaints between late 2024 and August 2025. While some of these complaints have been resolved (marked as "Closed"), one of the most recent from August 2025 is noteworthy due to its recent occurrence. Additionally, there are concerns about water quality, as evidenced by an open water lead test kit request from July 2025. The property has also seen some environmental maintenance needs, including a tree removal inspection request in May 2025, which was closed. Looking further back, the building had one documented illegal dumping complaint from December 1997, which resulted in a work order. The property's service request history shows a total of 17 complaints across two parcels over the past seven years, with the majority of these issues (six out of seven) primarily occurring within the most recent year (2024-2025).
AI-generated · may contain errors · check the source data tables below
How 845 N Monticello Ave 2'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 6229 buildings in this neighborhood, 1620 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.
845 N Monticello Ave 2 apartment reviews
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845 N Monticello Ave 2 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 1997 — violations, complaints, permits, and 311 calls.
Unlock complete timelineFull data for 845 N Monticello Ave 2 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