1451 N California 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 Humboldt Park average of 1.2.
What's in the 1451 N California Ave report
| Units | 3 |
|---|---|
| Year built | 1921 |
| Stories | — |
| Building area | 3,203 sq ft |
| Property class | 211 |
| PIN (Cook County parcel) | 16012080360000 |
Registered owner per Cook County Assessor records.
Landlord portfolio
Other Chicago properties this owner holds, with a risk rating for each.
Unlock complete reportThe three-unit residential building at 1451 N California Ave in the Humboldt Park neighborhood, owned by Rafael A Delgado, has been standing since 1921 and is currently recorded as having two total parcels under the owner's name. Over the past seven years, the property has generated minimal maintenance and service activity, with only one building permit filed and five 311 service requests directly related to the building itself. These requests have primarily concerned external matters, including two instances of graffiti removal in 2025 and a restaurant complaint in 2024, along with a street cleaning request and a pothole complaint in 2026. While the frequency of service requests might seem moderate, it's worth noting that the majority of these incidents appear to be related to street and neighborhood conditions rather than building-specific issues, with only one of the five service requests (the restaurant complaint) directly concerning the building itself. The owner has maintained consistent communication with city services where necessary, though the limited number of building permits could suggest either stable building conditions or potentially indicate areas for attention.
AI-generated · may contain errors · check the source data tables below
How 1451 N California 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 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.
1451 N California Ave apartment reviews
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1451 N California Ave event timeline
Building violations, environmental complaints and enforcement, permits, scofflaw listings, and 311 calls — most recent records in order.
See all 2 events
Full history back to 2022 — violations, complaints, permits, and 311 calls.
Unlock complete timelineFull data for 1451 N California 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.
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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 1451 N California 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