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5111 W Montrose Chicago

Portage Park, Chicago IL 60641 13164000160000 38 units · 1928

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
11
FewerMore

This building has 11 building violations (7y), above the Portage Park average of 0.6.

Building characteristics
Units38
Year built1928
Stories
Building area28,161 sq ft
Property class315
PIN (Cook County parcel)13164000160000
Ownership

Registered owner per Cook County Assessor records.

Mailing address
3856 Oakton St 100A

Landlord portfolio

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

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Augrented Insights
Initial analysis

The 38-unit residential building at 5111 W Montrose Avenue in Chicago's Portage Park neighborhood, constructed in 1928, has experienced a concerning pattern of unresolved building code violations and service requests over the past seven years. Most notably, there are currently six open building code violations as of November 2023, for which inspections were conducted between 2023 and 2026, with the most recent three occurring within the last four months. The building has also had multiple pest-related issues, including two rodent baiting complaints in May 2026 (now closed), and a stray animal complaint as of June 2026. Additional open complaints include two building violation reports from April 2026 and a more recent building violation complaint from May 2026. The property has a documented history of animal-related concerns, evidenced by a vicious animal complaint from April 2026 that was resolved.

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

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Risk rating

How 5111 W Montrose Chicago'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
0thpercentile

Out of 3924 buildings in this neighborhood, 3924 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
8%
No code
violation
92%
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.

Lot size

Total lot square footage is a proxy for property scale.

Building size

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

Code violations, owner's portfolio

Building violations across all properties this owner is registered on — a signal of systemic maintenance issues.

12-Month risk forecast
High failure risk 92%
Estimated probability of a code violation in the next 12 months.
Apartment reviews

5111 W Montrose Chicago apartment reviews

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On the map

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The story over time

5111 W Montrose Chicago event timeline

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

2026
311 Request May 13
Rodent Baiting/Rat Complaint
311 RequestMay 13
Rodent Baiting/Rat Complaint

See all 10 events

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

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Every record we have

Full data for 5111 W Montrose Chicago 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 5111 W Montrose Chicago 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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