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903 N Mozart St

Humboldt Park, Chicago IL 60622 16013170130000 2 units · 1884

Nothing on record for this building in the last seven years. Our model still sees a moderate chance of maintenance problems in the next 12 months, from the owner's wider portfolio and the surrounding area rather than from anything recorded here. No public enforcement record to go on. Walk the building, ask the current tenants how repairs get handled, and get any promises in writing.

Building Violations (7y) vs. neighborhood
Records already on file, against a typical building in Humboldt Park — not a forecast
At or below average
avg 1.2
0
FewerMore

This building has 0 building violations (7y), at or below the Humboldt Park average of 1.2.

Building characteristics
Units2
Year built1884
Stories
Building area1,957 sq ft
Property class211
PIN (Cook County parcel)16013170130000
Ownership

Registered owner per Cook County Assessor records.

Owner name
Mailing address
903 N Mozart St

Landlord portfolio

Other Chicago properties this owner holds, with a risk rating for each.

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Augrented Insights
Initial analysis

The two-unit residential building at 903 N Mozart St in the Humboldt Park neighborhood, owned by Earl A Fox, has been in existence since 1884. The property's recent service request history over the past 7 years reveals concerning patterns, particularly regarding pest control, with six rodent-related complaints filed between July 2024 and March 2025, all of which have been closed. This suggest an ongoing rodent infestation issue, though it's worth noting the building has consistently reported these problems through proper channels. The property's service history also includes a tree planting request in August 2024 and an open fire hydrant complaint in July 2024, both of which have been resolved. Official building permit activity has been minimal over this period, with only one permit recorded in the past seven years. While the building's age and unit count are typical for the neighborhood, the concentration of pest-related service requests in recent months, particularly in the first quarter of 2025, warrants attention to the building's maintenance conditions.

AI-generated · may contain errors · check the source data tables below

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Risk rating

How 903 N Mozart St'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.

Neighborhood percentile
32ndpercentile

Out of 6229 buildings in this neighborhood, 4236 are predicted to be safer. The band is relative to this neighborhood, so a share of every neighborhood falls in each colour.

RiskiestSafest
Predicted 12-month outcome
64%
No code
violation
36%
Code violation
likely
Model explanation

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.

311 calls (past 7 years)

311 service requests tied to this address over 7 years.

Location

Precise location is a proxy for area-level risk — some Chicago zip codes have systematically higher code-enforcement activity.

Construction permits (past 7 years)

Number of permits pulled at this address — construction or renovation activity over 7 years.

12-Month risk forecast
Moderate failure risk 36%
Estimated probability of a code violation in the next 12 months.
Apartment reviews

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On the map

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The story over time

903 N Mozart St event timeline

Building violations, environmental complaints and enforcement, permits, scofflaw listings, and 311 calls — most recent records in order.

2025
311 Request Mar 06
Rodent Baiting/Rat Complaint
311 RequestFeb 15
Rodent Baiting/Rat Complaint

See all 5 events

Full history back to 2023 — violations, complaints, permits, and 311 calls.

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Every record we have

Full data for 903 N Mozart St apartments

Chicago public datasets for this parcel — building violations, permits, 311 calls, environmental complaints and enforcement, scofflaw listings, and vacant building registrations.

Side by side

How 903 N Mozart St compares to the neighborhood

This building against comparable properties in Humboldt Park. Toggle filters to narrow the peer group.

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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

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