1736 W 21St St
This building has more problems than most buildings in this neighborhood. Few open issues; problems get fixed quickly. A reasonable bet for a smooth tenancy.
This building has 0 building violations (7y), at or below the Lower West Side average of 0.9.
What's in the 1736 W 21St St report
| Units | 2 |
|---|---|
| Year built | 1893 |
| Stories | — |
| Building area | 3,440 sq ft |
| Property class | 211 |
| PIN (Cook County parcel) | 17194200330000 |
Registered owner per Cook County Assessor records.
Landlord portfolio
Other Chicago properties this owner holds, with risk grades for each.
Unlock complete reportThe two-unit residential building at 1736 W 21st Street in Chicago's Lower West Side, owned by Arturo Delafuente, has experienced several notable maintenance and service issues over the past year. Of particular concern is an open sewer cave-in inspection request from February 2026, which, if unresolved, could pose serious sanitation and safety risks. The property, dating back to 1893, has had ten documented 311 service requests in the past seven years, with the most recent issues emerging in 2026 including fly dumping complaints and a tree planting request that remains open. Other recent service requests include a closed garbage cart maintenance issue and an open fire hydrant complaint from July 2025. The documented service requests suggest ongoing infrastructure and maintenance challenges, with particular attention needed to the current sewer-related issue given its potential impact on resident wellbeing. While some issues have been resolved (such as the 2025 garbage cart maintenance and the fly dumping complaint), the pattern of service requests indicates that regular maintenance attention is required for this historic structure.
How 1736 W 21St 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
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.
Out of 3674 buildings in this neighborhood, 2682 are predicted to be safer.
violation
likely
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.
1736 W 21St St apartment reviews
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1736 W 21St St event timeline
Building violations, environmental complaints and enforcement, permits, scofflaw listings, and 311 calls — most recent records in order.
See all 5 events
Full history back to 2025 — violations, complaints, permits, and 311 calls.
Unlock complete timelineFull data for 1736 W 21St St apartments
Chicago public datasets for this parcel — building violations, permits, 311 calls, environmental complaints and enforcement, scofflaw listings, and vacant building registrations.
What this is
Violations issued by the City of Chicago Department of Buildings against this parcel.
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What this is
Violations issued for failure to register or maintain a vacant or abandoned building.
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What this is
Building permits issued by the City of Chicago for new construction, alterations, and repairs at this parcel.
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What this is
Chicago 311 service requests recorded at this parcel — maintenance complaints and quality-of-life requests.
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What this is
Environmental complaints filed about this property with the City of Chicago.
| Complaint # | Date | Type | Inspector | Resolution | Resolved |
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What this is
Formal environmental enforcement cases brought against this property.
| Case # | Date | Type | Violation | Disposition | Status | Fine |
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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