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4021 N Sawyer Ave

Irving Park, Chicago IL 60618 13144310160000 2 units · 1926

This building has a higher-than-average number of open problems nearby. Few open issues; problems get fixed quickly. A reasonable bet for a smooth tenancy.

Building Violations (7y) vs. neighborhood
Compared to a typical building in Irving Park
At or below average
avg 0.9
0
FewerMore

This building has 0 building violations (7y), at or below the Irving Park average of 0.9.

Building characteristics
Units2
Year built1926
Stories
Building area2,814 sq ft
Property class211
PIN (Cook County parcel)13144310160000
Ownership

Registered owner per Cook County Assessor records.

Owner name
John R Clark
Mailing address
4021 N Sawyer Ave

Landlord portfolio

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

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Augrented Insights
AI summary

The two-unit residential building at 4021 N Sawyer Ave in Chicago's Irving Park neighborhood, owned by John R Clark, was constructed in 1926 and has been relatively stable over recent years, though with some recurring issues. Going back over the past seven years, the property has generated a total of 21 service requests through the 311 system, with the most recent activity concentrated in early 2026, including multiple reports of abandoned vehicles, garbage cart maintenance, and two rodent-related complaints. The building's record shows a noteworthy pattern of pest management requirements, with two rat complaints documented in October 2025 and May 2026, suggesting an ongoing concern in this area. Additionally, there was a graffiti removal request in late October 2025. The only recorded environmental complaint in the past seven years was a noise complaint filed in August 2023, which was investigated but found to have no violations. While the building's service request history shows regular interactions with city services, particularly around pest control and street maintenance issues, no significant safety violations or urgent concerns have been recorded in recent years.

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Risk rating

How 4021 N Sawyer 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

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.

Neighborhood percentile
32ndpercentile

Out of 3714 buildings in this neighborhood, 2526 are predicted to be safer.

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.

Number of bedrooms

Total bedroom count is a proxy for property scale.

Environmental complaint rate, owner's portfolio

Per-property environmental complaint rate across the owner's portfolio.

12-Month severity forecast
No violation 70.2%
Moderate concern 24.8%
Severe concern 5.0%
Estimated probability of a code violation in the next 12 months at each severity level.
Apartment reviews

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The story over time

4021 N Sawyer Ave event timeline

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

2026
311 Request May 29
Rodent Baiting/Rat Complaint
311 RequestFeb 28
Abandoned Vehicle Complaint

See all 6 events

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

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Every record we have

Full data for 4021 N Sawyer Ave apartments

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

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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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