Keep Ave, Elgin, IL Property Records

Kane County property records for 37 addresses on Keep Ave, Elgin, IL · Last verified August 2026

Keep Ave Highlights

Properties 37
Median Sale Price $197,000
Deeds and Mortgages on File 25
Median Price per Sqft $128
Owner Occupied 89%
Median Annual Tax Bill $5,134
Median Year Built 1941
Median Ownership Tenure 17 years

Properties on Keep Ave

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

601 Keep Ave

4 bd · 3.5 ba · 1,530 sqft · 0.084 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$127,000Jun 2022 $6,3142025 Amount on Record Mar 2008 2 Names on Record Assessor + 5 DocumentsUpdated Jul 2026

605 Keep Ave

3 bd · 2 ba · 1,942 sqft · 0.084 acres

Last Sale Tax Bill Prior Sale Owner Records
$254,000Sep 2025 $6,1902025 Amount on Record Aug 2011 1 Name on Record Owner Occupied AssessorUpdated Jul 2026

609 Keep Ave

1 ba · 1,011 sqft · 0.146 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$145,000Aug 2003 $4,4332025 1 Name on Record Owner Occupied AssessorUpdated Jul 2026

615 Keep Ave

3 bd · 1 ba · 1,212 sqft · 0.146 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$38,000Jul 2012 $5,5182025 —May 2012 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

616 Keep Ave

1 ba · 863 sqft · 0.218 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$105,000Feb 2016 $5,0272025 —Apr 2014 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

617 Keep Ave

3 bd · 1.5 ba · 1,404 sqft · 0.146 acres

Last Sale Tax Bill Prior Sale Owner Records
$136,500Oct 2016 $5,8212025 Amount on Record Jul 1996 1 Name on Record Owner Occupied AssessorUpdated Jul 2026

620 Keep Ave

1 bd · 1 ba · 638 sqft · 0.146 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$44,500Oct 2014 $3,7692025 Amount on Record Mar 2009 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

621 Keep Ave

2 bd · 1 ba · 864 sqft · 0.145 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$107,000May 1999 $3,7872025 —Mar 1999 2 Names on Record Owner Occupied AssessorUpdated Jul 2026

624 Keep Ave

2 bd · 1 ba · 1,051 sqft · 0.146 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$4,2732025 —Nov 1998 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2026

625 Keep Ave

2 bd · 1 ba · 1,413 sqft · 0.146 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$115,000Aug 2016 $5,6222025 1 Name on Record Owner Occupied AssessorUpdated Jul 2026

628 Keep Ave

2 ba · 1,479 sqft · 0.145 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$205,000Oct 2020 $6,3002025 Amount on Record Oct 2014 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

631 Keep Ave

1 ba · 802 sqft · 0.146 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$63,000Oct 2014 $3,2452025 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

632 Keep Ave

3 bd · 1.5 ba · 1,344 sqft · 0.146 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$99,000Jul 2009 $6,0242025 —Jan 2009 1 Name on Record Owner Occupied AssessorUpdated Jul 2026

635 Keep Ave

3 bd · 1 ba · 864 sqft · 0.145 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$162,000Jan 2004 $4,4302025 —Mar 2008 1 Name on Record Owner Occupied AssessorUpdated Jul 2026

636 Keep Ave

2 bd · 1 ba · 1,032 sqft · 0.146 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$5,5412025 2 Names on Record AssessorUpdated Aug 2026

642 Keep Ave

4 bd · 2 ba · 1,879 sqft · 0.146 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$240,000Jul 2005 $5,3552025 1 Name on Record Owner Occupied AssessorUpdated Jul 2026

645 Keep Ave

1 ba · 918 sqft · 0.146 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$86,900Dec 1993 $4,6172025 2 Names on Record Owner Occupied AssessorUpdated Aug 2026

652 Keep Ave

3 bd · 1 ba · 1,362 sqft · 0.161 acres

Last Sale Tax Bill Prior Sale Owner Records
$175,000Feb 2021 $5,0412025 Amount on Record Oct 2017 1 Name on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

657 Keep Ave

2 ba · 1,761 sqft · 0.151 acres

Last Sale Tax Bill Prior Sale Owner Records
$197,000Jul 2018 $4,9592025 1 Name on Record Owner Occupied Assessor + 4 DocumentsUpdated Jul 2026

658 Keep Ave

5 bd · 2 ba · 1,400 sqft · 0.151 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$37,500Jul 2014 $5,6662025 —Mar 2014 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2026

660 Keep Ave

4 bd · 1 ba · 1,433 sqft · 0.151 acres

Last Sale Tax Bill Prior Sale Owner Records
$127,000Aug 2022 $5,1842025 1 Name on Record Assessor + 2 DocumentsUpdated Aug 2026

661 Keep Ave

2 bd · 1.5 ba · 892 sqft · 0.151 acres

Last Sale Tax Bill Prior Sale Owner Records
$45,000Sep 2009 $3,9442025 —Jun 2009 1 Name on Record Owner Occupied AssessorUpdated Aug 2026

663 Keep Ave

2 bd · 1.5 ba · 1,056 sqft · 0.151 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$178,000Sep 2005 $3,2162025 Amount on Record Dec 1997 1 Name on Record Owner Occupied AssessorUpdated Jul 2026

664 Keep Ave

2 bd · 1 ba · 1,008 sqft · 0.151 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$138,000Jun 2016 $5,5292025 Amount on Record May 2011 1 Name on Record Owner Occupied AssessorUpdated Jul 2026

665 Keep Ave

3 bd · 1 ba · 1,044 sqft · 0.151 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$300,000May 2024 $5,3242025 Amount on Record Nov 2023 1 Name on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

670 Keep Ave

4 bd · 1.5 ba · 1,260 sqft · 0.151 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$1,5502025 1 Name on Record Owner Occupied AssessorUpdated Aug 2026

671 Keep Ave

4 bd · 1 ba · 1,372 sqft · 0.151 acres

Last Sale Tax Bill Prior Sale Owner Records
$128,000Aug 2000 $4,1802025 Amount on Record Oct 1999 1 Name on Record Owner Occupied AssessorUpdated Jul 2026

672 Keep Ave

3 bd · 2 ba · 1,033 sqft · 0.151 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$130,000Sep 1998 $6,2772025 2 Names on Record AssessorUpdated Aug 2026

673 Keep Ave

2 bd · 1 ba · 884 sqft · 0.151 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$82,000Feb 1996 $4,3712025 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2026

674 Keep Ave

2 bd · 1 ba · 897 sqft · 0.151 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$130,000Feb 2003 $5,8402025 —Feb 1997 1 Name on Record Owner Occupied AssessorUpdated Jul 2026

680 Keep Ave

3 bd · 2 ba · 1,286 sqft · 0.151 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$223,000May 2005 $6,6452025 Amount on Record Aug 2003 2 Names on Record Owner Occupied AssessorUpdated Jul 2026

681 Keep Ave

1 ba · 857 sqft · 0.151 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$3,0912025 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2026

683 Keep Ave

1 ba · 729 sqft · 0.151 acres

Last Sale Tax Bill Prior Sale Owner Records
$3,0162025 1 Name on Record Owner Occupied AssessorUpdated Aug 2026

685 Keep Ave

3 bd · 2.5 ba · 1,370 sqft · 0.151 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$175,000Jan 2004 $5,1342022 —Jan 2004 1 Name on Record Owner Occupied AssessorUpdated Jul 2026

687 Keep Ave

3 bd · 2 ba · 1,152 sqft · 0.151 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$145,000Dec 2009 $5,5542025 Amount on Record Aug 2009 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

688 Keep Ave

3 bd · 1.5 ba · 1,853 sqft · 0.151 acres

Last Sale Tax Bill Prior Sale Owner Records
—Apr 1995 $6,0152025 2 Names on Record Owner Occupied AssessorUpdated Aug 2026

690 Keep Ave

1 ba · 972 sqft · 0.151 acres

Last Sale Tax Bill Prior Sale Owner Records
$90,000Jun 1998 $5,1162025 2 Names on Record Owner Occupied AssessorUpdated Aug 2026

Property Records in Nearby Streets