Union Ave, Saint Charles, IL Property Records

Kane County property records for 28 addresses on Union Ave, Saint Charles, IL · Last verified August 2026

Union Ave Highlights

Properties 28
Median Sale Price $265,000
Deeds and Mortgages on File 48
Median Price per Sqft $248
Owner Occupied 86%
Median Annual Tax Bill $5,861
Median Year Built 1954
Median Ownership Tenure 6 years

Properties on Union Ave

Owner names and prior sale amounts shown locked below are available instantly with a free trial.

401 Union Ave

3 bd · 2 ba · 1,131 sqft · 0.137 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$225,000Dec 2020 $6,3162025 Amount on Record May 2005 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

402 Union Ave

2 bd · 1 ba · 806 sqft · 0.137 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$128,000Aug 2013 $5,5222025 2 Names on Record Owner Occupied AssessorUpdated Jul 2026

407 Union Ave

3 bd · 1 ba · 1,073 sqft · 0.137 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$158,000Jul 2004 $5,9652025 —Dec 2019 1 Name on Record Assessor + 2 DocumentsUpdated Jul 2026

408 Union Ave

3 bd · 1.5 ba · 1,428 sqft · 0.137 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$6,3212025 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Aug 2026

411 Union Ave

3 bd · 1 ba · 1,073 sqft · 0.137 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$120,000Mar 2020 $5,8612025 1 Name on Record Assessor + 2 DocumentsUpdated Jul 2026

412 Union Ave

3 bd · 1 ba · 1,131 sqft · 0.137 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$6,0122025 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2026

417 Union Ave

3 bd · 1 ba · 1,073 sqft · 0.137 acres

Last Sale Tax Bill Prior Sale Owner Records
$175,000Jan 2019 $5,8952025 Amount on Record Jan 2015 1 Name on Record Assessor + 4 DocumentsUpdated Aug 2026

421 Union Ave

1 ba · 1,073 sqft

Last Sale Tax Bill Prior Sale Owner Records
$5,5302025 2 Names on Record Owner Occupied Assessor + 4 DocumentsUpdated Aug 2026

422 Union Ave

3 bd · 1 ba · 957 sqft · 0.137 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
—Oct 1992 $5,1942025 1 Name on Record Owner Occupied AssessorUpdated Aug 2026

423 Union Ave

2 bd · 1 ba · 1,073 sqft · 0.137 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$168,500Mar 2017 $5,7702025 Amount on Record Jan 2007 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

425 Union Ave

3 bd · 1.5 ba · 2,146 sqft · 0.137 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$422,500Jun 2025 $11,4412025 Amount on Record Oct 2006 1 Name on Record AssessorUpdated Jul 2026

428 Union Ave

3 bd · 1 ba · 1,073 sqft · 0.137 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$142,500Sep 2014 $5,3502025 Amount on Record Apr 1998 1 Name on Record Owner Occupied AssessorUpdated Aug 2026

432 Union Ave

2 bd · 1 ba · 884 sqft · 0.137 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$160,000May 2020 $5,0972025 Amount on Record Jan 2020 1 Name on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

437 Union Ave

1 ba · 936 sqft · 0.137 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$125,000Mar 1996 $6,3072025 1 Name on Record Owner Occupied AssessorUpdated Aug 2026

438 Union Ave

4 bd · 2 ba · 1,206 sqft · 0.137 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$343,000Nov 2023 $7,1822025 Amount on Record Jul 2013 2 Names on Record Owner Occupied Assessor + 5 DocumentsUpdated Aug 2026

445 Union Ave

3 bd · 1 ba · 1,295 sqft · 0.137 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$180,000Apr 2008 $6,0172025 Amount on Record Jul 2006 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

446 Union Ave

3 bd · 1 ba · 1,038 sqft · 0.137 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$272,000Feb 2022 $5,4702025 Amount on Record Aug 2021 2 Names on Record Owner Occupied Assessor + 5 DocumentsUpdated Aug 2026

501 Union Ave

3 bd · 1 ba · 1,073 sqft · 0.137 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$84,000Aug 1997 $3,5352025 —Aug 1997 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2026

502 Union Ave

2 bd · 1 ba · 1,073 sqft · 0.137 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$330,000Oct 2025 $5,4792025 Amount on Record May 2009 2 Names on Record Owner Occupied Assessor + 3 DocumentsUpdated Jul 2026

507 Union Ave

4 bd · 2 ba · 884 sqft · 0.137 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$127,000Apr 2011 $5,8752025 Amount on Record Jul 2005 1 Name on Record Owner Occupied AssessorUpdated Jul 2026

508 Union Ave

3 bd · 1 ba · 957 sqft · 0.137 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$167,500Aug 2016 $5,1012025 Amount on Record Jun 2002 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

511 Union Ave

3 bd · 2 ba · 1,073 sqft · 0.137 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$150,000Aug 2019 $5,7392025 Amount on Record Jul 2019 1 Name on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

512 Union Ave

1 ba · 1,172 sqft · 0.137 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$2,5872025 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2026

517 Union Ave

3 bd · 1 ba · 884 sqft · 0.137 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$280,000Jun 2024 $6,3492025 Amount on Record Jul 2021 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

518 Union Ave

3 bd · 1 ba · 957 sqft · 0.137 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$211,000Nov 2021 $5,2292025 1 Name on Record Owner Occupied Assessor + 2 DocumentsUpdated Aug 2026

521 Union Ave

2 bd · 1 ba · 884 sqft · 0.212 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$220,000Mar 2022 $5,9682025 Amount on Record Jun 2005 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

522 Union Ave

2 bd · 1 ba · 884 sqft · 0.137 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$265,000Oct 2024 $5,1312025 Amount on Record Oct 2018 1 Name on Record Owner Occupied Assessor + 5 DocumentsUpdated Jul 2026

526 Union Ave

3 bd · 1.5 ba · 1,473 sqft · 0.137 acres

Last Sale Tax Bill Prior Sale Owner Records
$240,000Feb 2021 $7,7082025 —Oct 2005 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

Wildfire Risk on Union Ave

Source: USDA Forest Service Wildfire Risk to Communities · 2nd edition (2024), fuels as of 2020

Wildfire RiskNot rated
no burnable land in reach
Wildfire LikelihoodNegligible
ExposureNone
beyond ember reach

Property Records in Nearby Streets