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4131 W 21St St

North Lawndale, Chicago IL 60623 16224230100000

This building has a higher-than-average number of open problems nearby. 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 North Lawndale
At or below average
avg 2.0
0
FewerMore

This building has 0 building violations (7y), at or below the North Lawndale average of 2.0.

Building characteristics
Units
Year built1910
Stories
Building area2,464 sq ft
Property class211
PIN (Cook County parcel)16224230100000
Ownership

Registered owner per Cook County Assessor records.

Owner name
Delphine Richardson
Mailing address
619 N Mayfield Ave

Landlord portfolio

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

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Augrented Insights
AI summary

The property at 4131 W 21st Street in North Lawndale is a historic three-parcel building owned by Delphine Richardson and constructed in 1910. The building's documented service record over the past seven years reveals relatively few issues, with only two 311 service requests recorded at the specific address: an ice and snow removal request in January 2026 and a fly dumping complaint in June 2025, both of which have been marked as closed. While the owner has three total parcels associated with their name, the 311 service request system shows a total of 13 service requests connected to the owner's name across their properties, though most of these appear to be pertaining to other addresses or properties not specifically related to this building's address. Given the limited number of complaints directly linked to this address and the varied nature of the reported issues (weather-related and environmental), the building's service history suggests relatively stable conditions, though it is worth noting that the available data only represents a portion of the building's complete history since its construction over a century ago.

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Risk rating

How 4131 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.

Neighborhood percentile
92ndpercentile

Out of 3670 buildings in this neighborhood, 294 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
77%
No code
violation
23%
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.

Location

Precise location is a proxy for area-level risk — some Chicago zip codes have systematically higher code-enforcement activity.

Building size

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

Location

Precise location is a proxy for area-level risk — some Chicago zip codes have systematically higher code-enforcement activity.

12-Month severity forecast
No violation 59.1%
Moderate concern 18.1%
Severe concern 22.8%
Estimated probability of a code violation in the next 12 months at each severity level.
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The story over time

4131 W 21St St event timeline

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

2026
311 Request Jan 27
Ice and Snow Removal Request

See all 2 events

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

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Every record we have

Full data for 4131 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.

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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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