S Williams Ave, Palatine, IL Property Records

Cook County property records for 45 addresses on S Williams Ave, Palatine, IL · Last verified October 2026

S Williams Ave Highlights

Properties 45
Median Sale Price $431,000
Deeds and Mortgages on File 39
Median Price per Sqft $219
Owner Occupied 93%
Median Annual Tax Bill $8,737
Median Year Built 1963
Median Ownership Tenure 14 years

Properties on S Williams Ave

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

411 S Williams Ave

0.328 acres

Last Sale Tax Bill Prior Sale Owner Records
—Mar 2019 $1,5062023 Owner on File AssessorUpdated Jun 2026

412 S Williams Ave

3 bd · 1 ba · 1,332 sqft · built 1959 · 0.458 acres

Last Sale Tax Bill Prior Sale Owner Records
$100,500Jun 1987 $6,3292023 Owner on File Owner Occupied AssessorUpdated Jun 2026

419 S Williams Ave

3 bd · 2.5 ba · 1,397 sqft · built 1963 · 0.19 acres

Last Sale Tax Bill Prior Sale Owner Records
$221,000Oct 2010 $6,5302023 Amount on File May 2005 Owner on File Owner Occupied AssessorUpdated Oct 2026

422 S Williams Ave

3 bd · 1.5 ba · 1,878 sqft · built 1951 · 0.449 acres

Last Sale Tax Bill Prior Sale Owner Records
$8,9332023 Owner on File Owner Occupied AssessorUpdated Jun 2026

427 S Williams Ave

3 bd · 1.5 ba · 1,394 sqft · built 1990 · 0.451 acres

Last Sale Tax Bill Prior Sale Owner Records
—Jun 2005 $8,3312023 —Mar 2003 Owner on File Owner Occupied AssessorUpdated Jun 2026

435 S Williams Ave

4 bd · 3.5 ba · 4,020 sqft · built 1997 · 0.451 acres

Last Sale Tax Bill Prior Sale Owner Records
$8,8262023 Owner on File Owner Occupied AssessorUpdated Jun 2026

442 S Williams Ave

3 bd · 3.5 ba · 1,620 sqft · built 1940 · 0.268 acres

Last Sale Tax Bill Prior Sale Owner Records
$431,000Aug 2021 $8,4972023 Amount on File Jan 2019 Owner on File Owner Occupied Assessor + 3 DocumentsUpdated Oct 2026

445 S Williams Ave

3 bd · 2 ba · 1,678 sqft · built 1975 · 0.451 acres

Last Sale Tax Bill Prior Sale Owner Records
$325,000Sep 2016 $9,3292023 Amount on File May 2016 Owner on File Owner Occupied Assessor + 1 DocumentUpdated Sep 2026

450 S Williams Ave

4 bd · 2.5 ba · 3,564 sqft · built 2004 · 0.217 acres

Last Sale Tax Bill Prior Sale Owner Records
$799,000Apr 2024 $15,0562023 Amount on File Sep 2005 2 Owners on File Owner Occupied Assessor + 3 DocumentsUpdated Oct 2026

451 S Williams Ave

4 bd · 3 ba · 2,930 sqft · built 1940 · 0.451 acres

Last Sale Tax Bill Prior Sale Owner Records
$11,7462023 Owner on File Owner Occupied AssessorUpdated Jun 2026

456 S Williams Ave

4 bd · 2.5 ba · 3,244 sqft · built 2004 · 0.21 acres

Last Sale Tax Bill Prior Sale Owner Records
$16,2502023 Owner on File AssessorUpdated Jun 2026

459 S Williams Ave

3 bd · 1.5 ba · 2,740 sqft · built 1986 · 0.659 acres

Last Sale Tax Bill Prior Sale Owner Records
$10,1372023 2 Owners on File Owner Occupied AssessorUpdated Jun 2026

464 S Williams Ave

4 bd · 2.5 ba · 3,271 sqft · built 2006 · 0.207 acres

Last Sale Tax Bill Prior Sale Owner Records
$476,000Sep 2016 $14,9522023 Amount on File Feb 2016 Owner on File Owner Occupied Assessor + 1 DocumentUpdated Oct 2026

500 S Williams Ave

3 bd · 2 ba · 2,304 sqft · built 1946 · 0.23 acres

Last Sale Tax Bill Prior Sale Owner Records
$9,0382023 Owner on File Owner Occupied AssessorUpdated Jun 2026

503 S Williams Ave

3 bd · 2 ba · 2,060 sqft · built 1941 · 0.451 acres

Last Sale Tax Bill Prior Sale Owner Records
$390,000Oct 2022 $10,5322023 —May 2003 2 Owners on File Owner Occupied Assessor + 1 DocumentUpdated Jun 2026

512 S Williams Ave

0.24 acres

Last Sale Tax Bill Prior Sale Owner Records
Owner on File Owner Occupied AssessorUpdated Oct 2026

515 S Williams Ave

4 bd · 1.5 ba · 1,472 sqft · built 1913 · 0.451 acres

Last Sale Tax Bill Prior Sale Owner Records
$275,000Dec 2023 $5,4612023 —Dec 2018 Owner on File Owner Occupied Assessor + 2 DocumentsUpdated Oct 2026

525 S Williams Ave

2 bd · 1.5 ba · 1,008 sqft · built 1940 · 0.451 acres

Last Sale Tax Bill Prior Sale Owner Records
$6,6302023 Owner on File Owner Occupied AssessorUpdated Jun 2026

527 S Williams Ave

3 bd · 2.5 ba · 1,855 sqft · built 1982 · 0.451 acres

Last Sale Tax Bill Prior Sale Owner Records
$475,000Aug 2026 $11,6392024 Amount on File Jul 2017 Owner on File Owner Occupied Assessor + 2 DocumentsUpdated Sep 2026

529 S Williams Ave

3 bd · 1.5 ba · 1,400 sqft · built 1954 · 0.451 acres

Last Sale Tax Bill Prior Sale Owner Records
$195,000Dec 2000 $6,2242023 —Dec 2000 Owner on File Owner Occupied AssessorUpdated Oct 2026

530 S Williams Ave

0.464 acres

Last Sale Tax Bill Prior Sale Owner Records
Owner on File Owner Occupied AssessorUpdated Oct 2026

535 S Williams Ave

3 bd · 2.5 ba · 1,804 sqft · built 1984 · 0.451 acres

Last Sale Tax Bill Prior Sale Owner Records
$16,000Mar 1983 $8,7372023 Owner on File Owner Occupied AssessorUpdated Jun 2026

543 S Williams Ave

4 bd · 1 ba · 1,678 sqft · built 1942 · 0.451 acres

Last Sale Tax Bill Prior Sale Owner Records
$6,6302023 Owner on File Owner Occupied Assessor + 3 DocumentsUpdated Jun 2026

549 S Williams Ave

4 bd · 2.5 ba · 2,356 sqft · built 1987 · 0.451 acres

Last Sale Tax Bill Prior Sale Owner Records
—Sep 1987 $10,5422023 Owner on File Owner Occupied Assessor + 1 DocumentUpdated Jun 2026

606 S Williams Ave

1 ba · 936 sqft · built 1953 · 0.23 acres

Last Sale Tax Bill Prior Sale Owner Records
$175,000Jul 2004 Amount on File Dec 2003 Owner on File AssessorUpdated Oct 2026

614 S Williams Ave

1.5 ba · 1,582 sqft · built 1954 · 0.219 acres

Last Sale Tax Bill Prior Sale Owner Records
Owner on File Owner Occupied AssessorUpdated Oct 2026

617 S Williams Ave

5 bd · 2 ba · 2,054 sqft · built 1880 · 0.451 acres

Last Sale Tax Bill Prior Sale Owner Records
$112,500Aug 2012 $7,8342023 Amount on File Jan 2000 Owner on File Owner Occupied AssessorUpdated Oct 2026

623 S Williams Ave

4 bd · 2 ba · 2,196 sqft · built 1953 · 0.451 acres

Last Sale Tax Bill Prior Sale Owner Records
—May 2009 $6,9482023 —Oct 2004 Owner on File Owner Occupied AssessorUpdated Jun 2026

626 S Williams Ave

2 bd · 2 ba · 1,506 sqft · built 1941 · 0.23 acres

Last Sale Tax Bill Prior Sale Owner Records
$375,000Nov 2023 $6,0402023 Amount on File Dec 2013 2 Owners on File Owner Occupied Assessor + 2 DocumentsUpdated Oct 2026

627 S Williams Ave

2 bd · 1 ba · 1,672 sqft · built 1955 · 0.451 acres

Last Sale Tax Bill Prior Sale Owner Records
$199,001Jan 1999 $7,4282023 Amount on File — Owner on File Owner Occupied Assessor + 2 DocumentsUpdated Sep 2026

630 S Williams Ave

4 bd · 2.5 ba · 1,768 sqft · built 1975 · 0.23 acres

Last Sale Tax Bill Prior Sale Owner Records
$8,4362023 Owner on File Owner Occupied AssessorUpdated Jun 2026

635 S Williams Ave

4 bd · 2 ba · 2,767 sqft · built 1946 · 0.451 acres

Last Sale Tax Bill Prior Sale Owner Records
—Feb 1998 $9,1252023 Owner on File Owner Occupied AssessorUpdated Jun 2026

638 S Williams Ave

3 bd · 2 ba · 1,400 sqft · built 1973 · 0.23 acres

Last Sale Tax Bill Prior Sale Owner Records
$388,000Oct 2007 $5,1712023 Amount on File Nov 2001 Owner on File Owner Occupied AssessorUpdated Oct 2026

641 S Williams Ave

3 bd · 2.5 ba · 2,432 sqft · built 1986 · 0.451 acres

Last Sale Tax Bill Prior Sale Owner Records
$11,0392023 Owner on File Owner Occupied Assessor + 1 DocumentUpdated Jun 2026

646 S Williams Ave

3 bd · 3.5 ba · 1,758 sqft · built 1988 · 0.23 acres

Last Sale Tax Bill Prior Sale Owner Records
$320,000May 2017 $7,4222023 Amount on File May 2000 Owner on File Owner Occupied Assessor + 2 DocumentsUpdated Oct 2026

654 S Williams Ave

3 bd · 1.5 ba · 864 sqft · built 1957 · 0.282 acres

Last Sale Tax Bill Prior Sale Owner Records
$126,000Aug 1992 $3,8082023 Owner on File Owner Occupied AssessorUpdated Jun 2026

655 S Williams Ave

4 bd · 3 ba · 3,125 sqft · built 2003 · 0.451 acres

Last Sale Tax Bill Prior Sale Owner Records
$588,500Sep 2003 $15,1672023 Amount on File Sep 2002 Owner on File Owner Occupied Assessor + 1 DocumentUpdated Oct 2026

662 S Williams Ave

2 bd · 3.5 ba · 1,107 sqft · built 1954 · 0.282 acres

Last Sale Tax Bill Prior Sale Owner Records
$4,0062023 Owner on File Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

663 S Williams Ave

4 bd · 3 ba · 3,125 sqft · built 2000 · 0.451 acres

Last Sale Tax Bill Prior Sale Owner Records
$502,000Nov 2012 $15,2022023 Amount on File Sep 2006 Owner on File Owner Occupied Assessor + 1 DocumentUpdated Oct 2026

671 S Williams Ave

4 bd · 2.5 ba · 3,458 sqft · built 2003 · 0.451 acres

Last Sale Tax Bill Prior Sale Owner Records
$556,000Jul 2018 $17,4542023 Amount on File Nov 2003 Owner on File Owner Occupied Assessor + 3 DocumentsUpdated Oct 2026

704 S Williams Ave

2 bd · 1 ba · 872 sqft · built 1954 · 0.282 acres

Last Sale Tax Bill Prior Sale Owner Records
$5,9242023 Owner on File Owner Occupied AssessorUpdated Jun 2026

707 S Williams Ave

4 bd · 2.5 ba · 3,435 sqft · built 2000 · 0.451 acres

Last Sale Tax Bill Prior Sale Owner Records
$556,500Nov 2016 $16,0122023 Amount on File Jul 2005 Owner on File Owner Occupied Assessor + 2 DocumentsUpdated Oct 2026

717 S Williams Ave

4 bd · 2.5 ba · 3,422 sqft · built 2003 · 0.451 acres

Last Sale Tax Bill Prior Sale Owner Records
$750,000Jun 2024 $15,0562023 Amount on File Mar 2005 2 Owners on File Owner Occupied AssessorUpdated Jun 2026

718 S Williams Ave

4 bd · 3 ba · 2,679 sqft · built 1960 · 0.387 acres

Last Sale Tax Bill Prior Sale Owner Records
$385,000Apr 2019 $10,7392023 Amount on File Mar 2015 Owner on File Owner Occupied Assessor + 2 DocumentsUpdated Oct 2026

723 S Williams Ave

5 bd · 4.5 ba · 2,962 sqft · built 1988 · 0.451 acres

Last Sale Tax Bill Prior Sale Owner Records
$266,000Jun 2001 $8,3312023 —Jul 2018 2 Owners on File Owner Occupied Assessor + 6 DocumentsUpdated Aug 2026

Property Records in Nearby Streets