Gannon Ave, Madison, WI Property Records

Dane County property records for 56 addresses on Gannon Ave, Madison, WI · Last verified August 2026

Gannon Ave Highlights

Properties 56
Median Sale Price $275,000
Deeds and Mortgages on File 96
Median Price per Sqft $183
Owner Occupied 86%
Median Annual Tax Bill $4,363
Median Year Built 1953
Median Ownership Tenure 11 years

Properties on Gannon Ave

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

205 Gannon Ave

2 bd · 2 ba · 1,309 sqft · built 1956 · 0.123 acres

Last Sale Tax Bill Prior Sale Owner Records
—Apr 2004 $4,8992024 1 Name on Record AssessorUpdated Feb 2026

209 Gannon Ave

2 bd · 2 ba · 1,309 sqft · built 1956 · 0.123 acres

Last Sale Tax Bill Prior Sale Owner Records
—Apr 2004 $4,8992024 1 Name on Record AssessorUpdated Feb 2026

213 Gannon Ave

2 bd · 2 ba · 1,632 sqft · built 1963 · 0.123 acres

Last Sale Tax Bill Prior Sale Owner Records
$300,000Aug 2023 $5,2272024 Amount on Record Jun 2017 1 Name on Record Owner Occupied Assessor + 2 DocumentsUpdated Feb 2026

217 Gannon Ave

4 bd · 2 ba · 1,524 sqft · built 1963 · 0.123 acres

Last Sale Tax Bill Prior Sale Owner Records
$6,0202024 —May 2011 1 Name on Record Assessor + 3 DocumentsUpdated Feb 2026

221 Gannon Ave

4 bd · 2 ba · 1,664 sqft · built 1958 · 0.338 acres

Last Sale Tax Bill Prior Sale Owner Records
$6,3622024 —May 2011 1 Name on Record Owner Occupied Assessor + 3 DocumentsUpdated Feb 2026

404 Gannon Ave

0.248 acres

Last Sale Tax Bill Prior Sale Owner Records
—Nov 2025 $4,0692025 1 Name on Record Owner Occupied Assessor + 3 DocumentsUpdated Feb 2026

408 Gannon Ave

0.123 acres

Last Sale Tax Bill Prior Sale Owner Records
$220,000Jun 2019 $3,1002025 Amount on Record May 2005 1 Name on Record Owner Occupied Assessor + 2 DocumentsUpdated Feb 2026

412 Gannon Ave

0.123 acres

Last Sale Tax Bill Prior Sale Owner Records
—Aug 2011 $3,0232025 Amount on Record May 2011 1 Name on Record Assessor + 2 DocumentsUpdated Feb 2026

413 Gannon Ave

0.123 acres

Last Sale Tax Bill Prior Sale Owner Records
$154,500Aug 2014 $3,4502025 Amount on Record Sep 2006 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Feb 2026

416 Gannon Ave

0.123 acres

Last Sale Tax Bill Prior Sale Owner Records
$275,000Jan 2022 $3,9682025 Amount on Record Sep 2019 1 Name on Record Owner Occupied Assessor + 3 DocumentsUpdated Aug 2026

420 Gannon Ave

0.123 acres

Last Sale Tax Bill Prior Sale Owner Records
$205,000Jul 2022 $2,5422025 Amount on Record Jun 2021 1 Name on Record Owner Occupied Assessor + 5 DocumentsUpdated Jul 2026

421 Gannon Ave

0.248 acres

Last Sale Tax Bill Prior Sale Owner Records
$175,900Sep 2019 $4,4502025 1 Name on Record Owner Occupied Assessor + 3 DocumentsUpdated Jul 2026

424 Gannon Ave

0.123 acres

Last Sale Tax Bill Prior Sale Owner Records
$155,000May 2005 $3,4782025 1 Name on Record Owner Occupied Assessor + 2 DocumentsUpdated Feb 2026

425 Gannon Ave

0.123 acres

Last Sale Tax Bill Prior Sale Owner Records
$3,9222025 1 Name on Record AssessorUpdated Feb 2026

428 Gannon Ave

0.123 acres

Last Sale Tax Bill Prior Sale Owner Records
$300,000Aug 2025 $3,3442025 Amount on Record Jun 2025 1 Name on Record Owner Occupied Assessor + 2 DocumentsUpdated Feb 2026

429 Gannon Ave

0.123 acres

Last Sale Tax Bill Prior Sale Owner Records
$116,800Oct 2018 $3,0432025 1 Name on Record Assessor + 1 DocumentUpdated Apr 2026

500 Gannon Ave

0.164 acres

Last Sale Tax Bill Prior Sale Owner Records
$99,000Dec 2014 $3,2382025 Amount on Record Apr 2008 2 Names on Record Owner Occupied AssessorUpdated Feb 2026

505 Gannon Ave

0.123 acres

Last Sale Tax Bill Prior Sale Owner Records
$165,000Nov 2020 $2,9612025 Amount on Record Jul 2010 1 Name on Record Owner Occupied Assessor + 3 DocumentsUpdated Feb 2026

508 Gannon Ave

0.164 acres

Last Sale Tax Bill Prior Sale Owner Records
$3,1732025 1 Name on Record Owner Occupied AssessorUpdated Feb 2026

509 Gannon Ave

0.123 acres

Last Sale Tax Bill Prior Sale Owner Records
$125,000Jul 2009 $2,8562025 —Feb 2007 1 Name on Record Owner Occupied AssessorUpdated Feb 2026

512 Gannon Ave

0.162 acres

Last Sale Tax Bill Prior Sale Owner Records
$140,000Jul 2015 $3,7812025 Amount on Record Jun 2006 1 Name on Record Assessor + 1 DocumentUpdated Apr 2026

513 Gannon Ave

0.182 acres

Last Sale Tax Bill Prior Sale Owner Records
$160,900Jul 2005 $4,3572025 1 Name on Record Owner Occupied AssessorUpdated Feb 2026

517 Gannon Ave

0.182 acres

Last Sale Tax Bill Prior Sale Owner Records
$114,500Mar 2015 $2,9652025 Amount on Record Apr 2011 1 Name on Record Owner Occupied AssessorUpdated Feb 2026

520 Gannon Ave

0.248 acres

Last Sale Tax Bill Prior Sale Owner Records
$4,3372025 1 Name on Record Owner Occupied Assessor + 3 DocumentsUpdated Feb 2026

529 Gannon Ave

0.123 acres

Last Sale Tax Bill Prior Sale Owner Records
$136,900Sep 2015 $3,3232025 —Jun 2008 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Jun 2026

530 Gannon Ave

0.248 acres

Last Sale Tax Bill Prior Sale Owner Records
$220,000Jun 2018 $4,7752025 1 Name on Record Owner Occupied Assessor + 5 DocumentsUpdated Feb 2026

605 Gannon Ave

0.123 acres

Last Sale Tax Bill Prior Sale Owner Records
$134,000May 2007 $2,8002025 Amount on Record May 2005 1 Name on Record Owner Occupied Assessor + 2 DocumentsUpdated Jun 2026

609 Gannon Ave

0.123 acres

Last Sale Tax Bill Prior Sale Owner Records
$2,5042025 —Sep 2025 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Feb 2026

701 Gannon Ave

3 bd · 2 ba · 1,262 sqft · built 1953 · 0.189 acres

Last Sale Tax Bill Prior Sale Owner Records
$200,000Sep 2024 $5,5812024 Amount on Record Feb 2008 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Feb 2026

709 Gannon Ave

2 bd · 1 ba · 1,040 sqft · built 1953 · 0.183 acres

Last Sale Tax Bill Prior Sale Owner Records
$115,000Jul 2019 $2,4652024 Amount on Record May 2010 1 Name on Record Owner Occupied Assessor + 3 DocumentsUpdated Feb 2026

711 Gannon Ave

3 bd · 2 ba · 1,055 sqft · built 1954 · 0.183 acres

Last Sale Tax Bill Prior Sale Owner Records
$275,000Dec 2021 $5,6452024 Amount on Record Jun 2017 1 Name on Record Owner Occupied Assessor + 5 DocumentsUpdated Feb 2026

713 Gannon Ave

2 bd · 2 ba · 1,671 sqft · built 1950 · 0.183 acres

Last Sale Tax Bill Prior Sale Owner Records
—Mar 2022 $4,5882024 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Feb 2026

714 Gannon Ave

4 bd · 2 ba · 1,696 sqft · built 1949 · 0.371 acres

Last Sale Tax Bill Prior Sale Owner Records
$174,000Jun 2008 $4,9212024 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Feb 2026

716 Gannon Ave

4 bd · 2 ba · 2,142 sqft · built 1949 · 0.185 acres

Last Sale Tax Bill Prior Sale Owner Records
$137,700Sep 2006 $5,5832024 1 Name on Record AssessorUpdated Feb 2026

717 Gannon Ave

3 bd · 1 ba · 1,512 sqft · built 1950 · 0.183 acres

Last Sale Tax Bill Prior Sale Owner Records
$325,500Apr 2024 $4,5582024 2 Names on Record Owner Occupied Assessor + 4 DocumentsUpdated Feb 2026

718 Gannon Ave

4 bd · 1 ba · 1,714 sqft · built 1951 · 0.185 acres

Last Sale Tax Bill Prior Sale Owner Records
$4,2302024 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Feb 2026

721 Gannon Ave

2 bd · 1 ba · 1,248 sqft · built 1953 · 0.183 acres

Last Sale Tax Bill Prior Sale Owner Records
$160,000Aug 2016 $4,7682024 —Apr 2016 1 Name on Record Owner Occupied Assessor + 2 DocumentsUpdated Feb 2026

722 Gannon Ave

4 bd · 1 ba · 1,424 sqft · built 1951 · 0.185 acres

Last Sale Tax Bill Prior Sale Owner Records
$250,000Aug 2020 $5,1172024 Amount on Record Oct 2018 2 Names on Record Owner Occupied Assessor + 6 DocumentsUpdated Feb 2026

725 Gannon Ave

3 bd · 2 ba · 2,253 sqft · built 1953 · 0.183 acres

Last Sale Tax Bill Prior Sale Owner Records
$50,000Jun 1985 $5,8642024 1 Name on Record Owner Occupied AssessorUpdated Feb 2026

726 Gannon Ave

2 bd · 1 ba · 1,332 sqft · built 1956 · 0.185 acres

Last Sale Tax Bill Prior Sale Owner Records
$4,2892024 2 Names on Record Owner Occupied AssessorUpdated Feb 2026

730 Gannon Ave

3 bd · 1 ba · 956 sqft · built 1953 · 0.185 acres

Last Sale Tax Bill Prior Sale Owner Records
$4,3632024 —Mar 2015 1 Name on Record Owner Occupied AssessorUpdated Feb 2026

801 Gannon Ave

2 bd · 1 ba · 884 sqft · built 1955 · 0.183 acres

Last Sale Tax Bill Prior Sale Owner Records
$114,000Apr 2002 $4,2602024 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Feb 2026

804 Gannon Ave

3 bd · 1 ba · 1,486 sqft · built 1953 · 0.185 acres

Last Sale Tax Bill Prior Sale Owner Records
$145,600May 2006 $4,8902025 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

805 Gannon Ave

3 bd · 2 ba · 2,385 sqft · built 1954 · 0.183 acres

Last Sale Tax Bill Prior Sale Owner Records
$270,000Aug 2018 $7,8542025 Amount on Record Oct 2010 2 Names on Record Owner Occupied Assessor + 6 DocumentsUpdated Jul 2026

809 Gannon Ave

3 bd · 1 ba · 1,240 sqft · built 1940 · 0.183 acres

Last Sale Tax Bill Prior Sale Owner Records
$147,500Apr 2006 $4,1522024 Amount on Record Jul 2008 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Feb 2026

810 Gannon Ave

3 bd · 2 ba · 1,914 sqft · built 1948 · 0.185 acres

Last Sale Tax Bill Prior Sale Owner Records
$311,000Jun 2021 $5,9602024 Amount on Record Oct 2013 2 Names on Record Owner Occupied Assessor + 4 DocumentsUpdated Feb 2026

813 Gannon Ave

3 bd · 1 ba · 1,429 sqft · built 1938 · 0.183 acres

Last Sale Tax Bill Prior Sale Owner Records
$96,500Apr 1995 $5,9842024 2 Names on Record Owner Occupied AssessorUpdated Feb 2026

814 Gannon Ave

3 bd · 2 ba · 1,255 sqft · built 1953 · 0.185 acres

Last Sale Tax Bill Prior Sale Owner Records
$102,900Oct 1996 $4,7602024 1 Name on Record Owner Occupied AssessorUpdated Feb 2026

817 Gannon Ave

2 bd · 1 ba · 1,468 sqft · built 1941 · 0.183 acres

Last Sale Tax Bill Prior Sale Owner Records
$156,000Nov 2014 $5,3512024 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Feb 2026

818 Gannon Ave

2 bd · 2 ba · 1,279 sqft · built 1947 · 0.185 acres

Last Sale Tax Bill Prior Sale Owner Records
$128,000May 2015 $4,1512024 2 Names on Record Owner Occupied AssessorUpdated Feb 2026

821 Gannon Ave

3 bd · 1 ba · 1,233 sqft · built 1945 · 0.183 acres

Last Sale Tax Bill Prior Sale Owner Records
$4,9102025 2 Names on Record Owner Occupied AssessorUpdated Aug 2026

822 Gannon Ave

3 bd · 2 ba · 1,783 sqft · built 1962 · 0.185 acres

Last Sale Tax Bill Prior Sale Owner Records
$334,900Oct 2022 $6,1102024 Amount on Record Jun 2020 1 Name on Record Owner Occupied Assessor + 2 DocumentsUpdated Feb 2026

825 Gannon Ave

3 bd · 1 ba · 1,125 sqft · built 1942 · 0.183 acres

Last Sale Tax Bill Prior Sale Owner Records
$127,000Apr 2003 $4,3442024 1 Name on Record Owner Occupied Assessor + 6 DocumentsUpdated Feb 2026

826 Gannon Ave

3 bd · 1 ba · 1,248 sqft · built 1948 · 0.185 acres

Last Sale Tax Bill Prior Sale Owner Records
$116,500Jan 2000 $4,6942024 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Feb 2026

830 Gannon Ave

4 bd · 2 ba · 1,767 sqft · built 1947 · 0.185 acres

Last Sale Tax Bill Prior Sale Owner Records
$137,900Sep 2002 $5,3882024 1 Name on Record Owner Occupied AssessorUpdated Feb 2026

834 Gannon Ave

3 bd · 2 ba · 1,621 sqft · built 1931 · 0.182 acres

Last Sale Tax Bill Prior Sale Owner Records
$22,000Nov 1975 $5,2322024 1 Name on Record Owner Occupied AssessorUpdated Feb 2026

Wildfire Risk on Gannon 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