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628 N Long Ave

Chicago, Chicago IL 60644 16091090510000 3 units · 2025

This building has far more open problems than almost any other in the neighborhood. 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 Chicago
At or below average
avg 0.0
0
FewerMore

This building has 0 building violations (7y), at or below the Chicago average of 0.0.

Building characteristics
Units3
Year built2025
Stories
Building area4,160 sq ft
Property class211
PIN (Cook County parcel)16091090510000
Ownership

Registered owner per Cook County Assessor records.

Owner name
Christopher Koczwara
Mailing address
5838 S. Archer Ave.

Landlord portfolio

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

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Risk rating

How 628 N Long 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
4thpercentile

Out of 324 buildings in this neighborhood, 311 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
76%
No code
violation
24%
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.

Building size

Total building square footage is a proxy for property scale and management complexity.

Year built

The year a building was constructed is a proxy for its maintenance challenges.

Number of rooms

Total room count is a proxy for property scale.

12-Month severity forecast
No violation 77.2%
Moderate concern 20.5%
Severe concern 2.3%
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

628 N Long Ave event timeline

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

No dated public records on file yet.
Every record we have

Full data for 628 N Long 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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