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1841 N Keystone Ave

Hermosa, Chicago IL 60639 13344150060000 2 units · 1908

This building has a substantial enforcement record over the last seven years, but recent activity points to a low risk of further maintenance problems in 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 Hermosa — not a forecast
Above average
avg 0.9
3
FewerMore

This building has 3 building violations (7y), above the Hermosa average of 0.9.

The bar and the rating point different ways because they measure different things: the bar counts building violations already on file, the rating forecasts the next 12 months.

Building characteristics
Units2
Year built1908
Stories
Building area2,112 sq ft
Property class211
PIN (Cook County parcel)13344150060000
Ownership

Registered owner per Cook County Assessor records.

Owner name
Mailing address
1841 N Keystone Ave

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 1841 N Keystone Ave in the Hermosa neighborhood, constructed in 1908 and currently owned by Small Cherry Holdings, has experienced several concerning recent developments. Most notably, on January 7, 2026, three complaint-driven inspection violations were filed against the property, all of which remain open and unresolved as of the latest data, indicating potential ongoing safety or habitability concerns that warrant attention. While the building's historical records show minimal activity over the past seven years with only one building permit issued, the current cluster of open violations represents the most significant and pressing issue on record for this property. The building has also generated 11 service requests through the 311 system during this period, though without specific details on their nature or resolution status, these requests provide limited insight into the property's condition. It's important to note that the building violations from seven years ago have not been updated in the current record, making it difficult to assess the full context of the property's compliance history.

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

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Risk rating

How 1841 N Keystone 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

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
57thpercentile

Out of 1618 buildings in this neighborhood, 696 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
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.

Owner's portfolio size

The number of parcels this owner is registered on — larger portfolios can mean more management complexity.

Year built

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

Lot size

Total lot square footage is a proxy for property scale.

12-Month risk forecast
Low failure risk 24%
Estimated probability of a code violation in the next 12 months.
Apartment reviews

1841 N Keystone Ave apartment reviews

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On the map

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The story over time

1841 N Keystone Ave event timeline

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

2026
Building Violation Jan 07 Serious
COMPLAINT
OPEN
Building ViolationJan 07
COMPLAINT

See all 4 events

Full history back to 2021 — violations, complaints, permits, and 311 calls.

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Every record we have

Full data for 1841 N Keystone Ave 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 1841 N Keystone Ave compares to the neighborhood

This building against comparable properties in Hermosa. 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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