South Ave, Sycamore, IL Property Records

DeKalb County property records for 28 addresses on South Ave, Sycamore, IL · Last verified October 2026

South Ave Highlights

Properties 28
Median Sale Price $192,000
Deeds and Mortgages on File 31
Median Price per Sqft $224
Owner Occupied 57%
Median Annual Tax Bill $3,789
Median Year Built 1920
Median Ownership Tenure 5 years

Properties on South Ave

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

345 South Ave

1 bd · 1 ba · 992 sqft · built 1940 · 0.22 acres

Last Sale Tax Bill Prior Sale Owner Records
$160,000Mar 2017 $1,0322024 Amount on Record Apr 2009 Owner on Record Assessor + 2 DocumentsUpdated Aug 2026

363 South Ave

630 sqft · built 1900 · 0.135 acres

Last Sale Tax Bill Prior Sale Owner Records
$6812024 Owner on Record Assessor + 1 DocumentUpdated Apr 2026

365 South Ave

0.11 acres

Last Sale Tax Bill Prior Sale Owner Records
$5462024 Owner on Record AssessorUpdated Apr 2026

411 South Ave

3 bd · 1 ba · 880 sqft · built 1930 · 0.231 acres

Last Sale Tax Bill Prior Sale Owner Records
$2,2722024 Owner on Record Owner Occupied AssessorUpdated Apr 2026

450 South Ave

1.37 acres

Last Sale Tax Bill Prior Sale Owner Records
—Jan 2022 $1,3232024 Owner on Record Assessor + 1 DocumentUpdated Apr 2026

611 South Ave

3 bd · 2 ba · 2,054 sqft · built 1935 · 0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
$118,000Mar 2013 $5,8612024 —Feb 2012 2 Owners on Record Owner Occupied AssessorUpdated Oct 2026

612 South Ave

2 bd · 1 ba · 851 sqft · built 1900 · 0.21 acres

Last Sale Tax Bill Prior Sale Owner Records
$127,000Apr 2016 $4,6532024 Amount on Record Mar 2006 Owner on Record Owner Occupied AssessorUpdated Oct 2026

618 South Ave

4 bd · 2 ba · 919 sqft · built 1900 · 0.211 acres

Last Sale Tax Bill Prior Sale Owner Records
$185,000Jan 2022 $5,4472024 Owner on Record Owner Occupied Assessor + 1 DocumentUpdated Oct 2026

621 South Ave

3 bd · 1 ba · 616 sqft · built 1920 · 0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
$143,000Nov 2018 $3,9192024 Owner on Record Owner Occupied Assessor + 2 DocumentsUpdated Oct 2026

624 South Ave

4 bd · 2 ba · 816 sqft · built 1890 · 0.292 acres

Last Sale Tax Bill Prior Sale Owner Records
$100,500Dec 2018 $3,5242024 Amount on Record Jul 2018 Owner on Record Owner Occupied Assessor + 4 DocumentsUpdated Oct 2026

627 South Ave

4 bd · 1 ba · 787 sqft · built 1884 · 0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
—Nov 2011 $2,8952024 2 Owners on Record Owner Occupied AssessorUpdated May 2026

633 South Ave

5 bd · 2.5 ba · 1,076 sqft · built 1900 · 0.165 acres

Last Sale Tax Bill Prior Sale Owner Records
$4,6822024 2 Owners on Record Owner Occupied Assessor + 1 DocumentUpdated May 2026

634 South Ave

5 bd · 2 ba · 969 sqft · built 1870 · 0.31 acres

Last Sale Tax Bill Prior Sale Owner Records
$4,6792024 2 Owners on Record Owner Occupied AssessorUpdated May 2026

635 South Ave

4 bd · 1 ba · 777 sqft · built 1900 · 0.077 acres

Last Sale Tax Bill Prior Sale Owner Records
$2,9832024 Owner on Record Owner Occupied AssessorUpdated Apr 2026

640 South Ave

3 bd · 1 ba · 540 sqft · built 1886 · 0.266 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,3672024 2 Owners on Record Owner Occupied AssessorUpdated Apr 2026

641 South Ave

3 bd · 1 ba · 788 sqft · built 1890 · 0.189 acres

Last Sale Tax Bill Prior Sale Owner Records
$155,000Dec 2020 $4,6852024 —Feb 2015 Owner on Record Assessor + 1 DocumentUpdated Oct 2026

644 South Ave

1 bd · 2 ba · 856 sqft · built 1900 · 0.149 acres

Last Sale Tax Bill Prior Sale Owner Records
$192,000May 2025 $5,2502024 Amount on Record Mar 2019 Owner on Record Assessor + 2 DocumentsUpdated Oct 2026

645 South Ave

4 bd · 1 ba · 923 sqft · built 1920 · 0.29 acres

Last Sale Tax Bill Prior Sale Owner Records
$87,500Nov 2016 $5,6472024 —Apr 2012 2 Owners on Record Assessor + 1 DocumentUpdated Aug 2026

654 South Ave

4 bd · 2 ba · 1,620 sqft · built 1996 · 0.234 acres

Last Sale Tax Bill Prior Sale Owner Records
$329,500Jan 2025 $7,5792024 Amount on Record Jun 2018 2 Owners on Record Owner Occupied Assessor + 1 DocumentUpdated Oct 2026

655 South Ave

3 bd · 1 ba · 588 sqft · built 1926 · 0.243 acres

Last Sale Tax Bill Prior Sale Owner Records
$253,333Sep 2022 $4,2072024 Amount on Record Aug 2016 2 Owners on Record Assessor + 2 DocumentsUpdated Sep 2026

660 South Ave

1 bd · 1 ba · 1,188 sqft · built 1945 · 0.185 acres

Last Sale Tax Bill Prior Sale Owner Records
$270,000Dec 2025 $5,4682024 Amount on Record Feb 2022 Owner on Record Assessor + 3 DocumentsUpdated Oct 2026

661 South Ave

1 bd · 1 ba · 864 sqft · built 1978 · 0.209 acres

Last Sale Tax Bill Prior Sale Owner Records
$2,6892024 2 Owners on Record Owner Occupied Assessor + 1 DocumentUpdated Apr 2026

664 South Ave

1 bd · 1 ba · 912 sqft · built 1980 · 0.191 acres

Last Sale Tax Bill Prior Sale Owner Records
$283,000Feb 2025 $7,4242025 2 Owners on Record AssessorUpdated Sep 2026

665 South Ave

1 bd · 1 ba · 1,032 sqft · built 1975 · 0.207 acres

Last Sale Tax Bill Prior Sale Owner Records
$3,3032024 Owner on Record AssessorUpdated Apr 2026

672 South Ave

2 bd · built 1936 · 0.179 acres

Last Sale Tax Bill Prior Sale Owner Records
$3,2252024 Owner on Record Owner Occupied Assessor + 3 DocumentsUpdated May 2026

673 South Ave

1 bd · 1 ba · 756 sqft · built 1975 · 0.205 acres

Last Sale Tax Bill Prior Sale Owner Records
$118,000Dec 2021 $3,1112024 Owner on Record Owner Occupied Assessor + 2 DocumentsUpdated Oct 2026

679 South Ave

1 bd · 1 ba · 1,084 sqft · built 1975 · 0.203 acres

Last Sale Tax Bill Prior Sale Owner Records
$3,7892024 Owner on Record AssessorUpdated May 2026

686 South Ave

0.598 acres

Last Sale Tax Bill Prior Sale Owner Records
$175,000Nov 2022 $4,5962024 Amount on Record Feb 2021 Owner on Record Owner Occupied Assessor + 3 DocumentsUpdated Oct 2026

Property Records in Nearby Streets