Property overview

6642 S Union Ave

Chicago, IL 60621

Who owns 6642 S Union Ave, what the county and city have on record, and a measured sell-signal score — every fact dated and sourced.

Owner of record3 Arcs Properties LlcMailing address: 153 Sunset Dr, Carpentersvi IL 60110Observed Sep 19, 2026 · Cook County Assessor parcel addresses (open data)

Parcel 20-21-124-018-0000 · Public research profile

Motivated Seller IndexDRAFT MODEL

100/100

About 22 in 100 homes with these signals sold within six months (28.8× the Chicago rate)100% of model checks have usable evidence

A measured sell-signal score from public records: 5 positive signals observed. It is a base rate for homes like this, not a statement about this owner. How it works ↓

2024 aerial photo of the parcel at 6642 S Union Ave, Chicago, IL — Aerial 2024 with parcel boundary · Cook County GIS

Assessed value$13,001.00 assessed (land $908.00 · building $12,093.00); Cook assesses class 2 at 10%, implying about $130,000.00 market value

Tax statusNot in the Clerk delinquent file

Ownership tenureSince April 2025

Property typeMulti-Family, 2 story, masonry (class 211)

THE INDEX

Why this MSI reads 100

Draft model

5 of 12 checked public signals observed, covering 100% of the model. The score is public; the signal-by-signal reasons, source documents, and owner details are in LienSuite.

Method and limits. MSI v0.2-chicago-2026-09 weights twelve public signals by how much each one changed the recorded six-month sale rate across all 566,000 Chicago homes, checked on a holdout the model never saw (the top 1% of homes by score sold at 4.8× the citywide rate): vacancy complaint +22, new-construction or demolition permit +17, renovation permit +16, unpermitted-work complaint +16, upkeep complaint +15, bought within the last two years +11, building-violation complaint +9, delinquent property tax +8, owner mails out of state +4, permit valued at $25,000 or more +4, owner mails to the property -5, owned for 20 years or more -10. The "in 100 homes" figure is the model's fitted probability for this combination of signals. It describes homes like this one in aggregate; it is not a claim about this owner's intentions, and it is not LienSuite's paid deal score.

THE RECORD

Property details

Dated sources

Property type: Multi-Family, 2 story, masonry (class 211)
Owner of record: 3 Arcs Properties Llc (mailing address 153 Sunset Dr, Carpentersvi IL 60110)
Assessment year: 2025
Assessed value: $13,001.00 assessed (land $908.00 · building $12,093.00); Cook assesses class 2 at 10%, implying about $130,000.00 market value
Living area: 2,160 sq ft, full basement
Beds and baths: 4 beds · 2 bath + 2 half
Year built: 1898 (condition rated Average)
Lot size: 3,025 sq ft
Last recorded sale: $59,055.00 other deed, April 10, 2025
311 complaints: 5 in the last 12 months: vacant/abandoned building complaint (1); building violation (1); no building permit and construction violation (1); no water complaint (2)

Parcel reference: 20-21-124-018-0000. Facts reflect the listed observation dates and may have changed since then.

OWNERSHIP AND TAXES

Research snapshot

Observed tax balanceNot in the Clerk delinquent file

Delinquency period—

Last recorded transferApril 10, 2025

Transfer amount$59,055.00

Observed Sep 19, 2026 · Cook County Clerk delinquent file (balance) and Assessor parcel sales (transfer). A tax balance is not proof that a property is for sale.

CHANGES OVER TIME

Property timeline

May 20, 2026
Vacant/abandoned building complaint
311 complaint, status Completed.
City of Chicago 311 Service Requests (open data) · checked Sep 19, 2026
Apr 10, 2025
Recorded sale
$59,055.00, other deed.
Cook County Assessor parcel sales (open data) · checked Sep 19, 2026

NEARBY

More records nearby

Facts on this page reflect their observation dates. Confirm the parcel and current records with the county before acting.