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4705 W Byron St

Portage Park, Chicago IL 60641 13221060210000 3 units · 1923

This building has a substantial enforcement record over the last seven years, and our model predicts continuing maintenance failures over the next 12 months. Read the records below before you sign. Ask which issues were resolved, get repair commitments in writing, and inspect the unit yourself.

Building Violations (7y) vs. neighborhood
Records already on file, against a typical building in Portage Park — not a forecast
Above average
avg 0.6
12
FewerMore

This building has 12 building violations (7y), above the Portage Park average of 0.6.

Building characteristics
Units3
Year built1923
Stories
Building area2,621 sq ft
Property class211
PIN (Cook County parcel)13221060210000
Ownership

Registered owner per Cook County Assessor records.

Mailing address
592 Concord Ln

Landlord portfolio

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

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Augrented Insights
Initial analysis

The three-unit residential building at 4705 W Byron St in Portage Park, owned by Ivan Nilolic, has been through several notable events in recent years that warrant attention. The most concerning current issue is a cluster of five open complaint-driven inspection violations from October 2025, all of which remain unresolved as of October 2023, suggesting ongoing compliance challenges. The property has also experienced various plumbing-related incidents, with two plumbing violation complaints filed in December 2025 (both now closed), along with other building violations in October 2025 that have since been resolved. An October 2025 rodent-related issue was addressed through the Alderman's office and closed. More recently, in June 2026, there is an ongoing request for tree removal inspection, though its ultimate outcome remains to be determined.

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

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Risk rating

How 4705 W Byron 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
4thpercentile

Out of 3924 buildings in this neighborhood, 3767 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
36%
No code
violation
64%
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.

Violation rate, owner's portfolio

Per-property violation rate across the owner's portfolio.

Code violations (past 7 years)

City of Chicago Department of Buildings violations issued at this address over the last 7 years — a direct record of enforcement activity.

311 call rate, owner's portfolio

Per-property 311 call rate across the owner's portfolio.

12-Month risk forecast
High failure risk 64%
Estimated probability of a code violation in the next 12 months.
Apartment reviews

4705 W Byron St apartment reviews

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The story over time

4705 W Byron St event timeline

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

2025
311 Request Dec 28
Buildings - Plumbing Violation
311 City Services
311 RequestDec 24
Buildings - Plumbing Violation

See all 10 events

Full history back to 2025 — violations, complaints, permits, and 311 calls.

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Every record we have

Full data for 4705 W Byron 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 4705 W Byron St compares to the neighborhood

This building against comparable properties in Portage 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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