Dane County property records for 46 addresses on Union St, Sun Prairie, WI · Last verified October 2026
| Properties | 46 |
|---|---|
| Median Sale Price | $332,900 |
| Deeds and Mortgages on File | 78 |
| Median Price per Sqft | $250 |
| Owner Occupied | 89% |
| Median Annual Tax Bill | $5,809 |
| Median Year Built | 1946 |
| Median Ownership Tenure | 6 years |
Owner names and prior sale amounts shown locked below are available instantly with a free trial.
3 bd · 2 ba · 776 sqft · built 1940 · 0.167 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $194,500Mar 2020 | $5,0922025 | —Jul 2009 | Owner on Record Owner Occupied | Assessor + 2 DocumentsUpdated Oct 2026 |
3 bd · 1 ba · 1,012 sqft · built 1949 · 0.139 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $375,000Apr 2026 | $5,9812025 | Amount on Record Nov 2016 | 2 Owners on Record Owner Occupied | Assessor + 2 DocumentsUpdated Oct 2026 |
4 bd · 2 ba · 1,065 sqft · built 1949 · 0.203 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $137,900Jan 2010 | $5,9912025 | Amount on Record Sep 2009 | Owner on Record Owner Occupied | AssessorUpdated Feb 2026 |
3 bd · 2 ba · 1,532 sqft · built 1910 · 0.375 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $5,2232025 | Owner on Record Owner Occupied | Assessor + 2 DocumentsUpdated Feb 2026 |
3 bd · 1.5 ba · 1,186 sqft · built 1905 · 0.207 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $340,000Jun 2026 | $4,6762025 | Owner on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
2 bd · 3 ba · 888 sqft · built 1945 · 0.225 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $271,000May 2021 | $5,5582025 | 2 Owners on Record Owner Occupied | Assessor + 2 DocumentsUpdated Feb 2026 |
3 bd · 3 ba · 1,976 sqft · built 1890 · 0.312 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $218,500Sep 2017 | $6,5482025 | Amount on Record Feb 2008 | Owner on Record Owner Occupied | Assessor + 4 DocumentsUpdated Feb 2026 |
2 bd · 1 ba · 943 sqft · built 1910 · 0.325 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $127,000Dec 2009 | $4,4602025 | Owner on Record Owner Occupied | AssessorUpdated Feb 2026 |
4 bd · 2 ba · 2,060 sqft · built 1900 · 0.323 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $229,000Jul 2022 | $4,7212025 | Owner on Record Owner Occupied | Assessor + 3 DocumentsUpdated Feb 2026 |
2 bd · 1 ba · 1,211 sqft · built 1900 · 0.276 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $4,5222025 | Owner on Record Owner Occupied | Assessor + 2 DocumentsUpdated Feb 2026 |
5 bd · 2 ba · 2,452 sqft · built 1900 · 0.239 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $218,000Nov 2018 | $6,0802025 | Amount on Record Dec 2013 | Owner on Record | Assessor + 3 DocumentsUpdated Oct 2026 |
2 bd · 2 ba · 1,416 sqft · built 1900 · 0.25 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $332,900Oct 2025 | $4,8532025 | Amount on Record Aug 2018 | Owner on Record Owner Occupied | Assessor + 6 DocumentsUpdated Feb 2026 |
4 bd · 2 ba · 1,568 sqft · built 1920 · 0.375 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $393,400Aug 2024 | $6,7132025 | Amount on Record Dec 2021 | 2 Owners on Record Owner Occupied | Assessor + 5 DocumentsUpdated Feb 2026 |
4 bd · 2 ba · 1,134 sqft · built 1954 · 0.189 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $392,000Apr 2025 | $5,9772025 | —Jun 2023 | 2 Owners on Record Owner Occupied | Assessor + 1 DocumentUpdated Feb 2026 |
3 bd · 1 ba · 1,008 sqft · built 1930 · 0.292 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $338,300Jun 2022 | $6,2752025 | Amount on Record Sep 2016 | Owner on Record Owner Occupied | Assessor + 2 DocumentsUpdated Feb 2026 |
3 bd · 2 ba · 1,540 sqft · built 1920 · 0.257 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $352,000Jun 2024 | $6,3962025 | Amount on Record Jun 2017 | Owner on Record Owner Occupied | Assessor + 3 DocumentsUpdated Feb 2026 |
3 bd · 1 ba · 988 sqft · built 1930 · 0.201 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $206,000Jul 2018 | $5,6492025 | Amount on Record Jul 2014 | 2 Owners on Record Owner Occupied | Assessor + 2 DocumentsUpdated Feb 2026 |
2 bd · 1 ba · 1,156 sqft · built 1949 · 0.201 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $5,2382025 | 2 Owners on Record Owner Occupied | Assessor + 2 DocumentsUpdated Feb 2026 |
3 bd · 2 ba · 968 sqft · built 1947 · 0.264 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $169,900Feb 2007 | $5,4732025 | Owner on Record Owner Occupied | Assessor + 1 DocumentUpdated Feb 2026 |
4 bd · 2 ba · 1,717 sqft · built 1910 · 0.264 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $425,000Aug 2025 | $6,4512025 | Amount on Record Apr 2019 | Owner on Record Owner Occupied | Assessor + 4 DocumentsUpdated Feb 2026 |
3 bd · 2.5 ba · 2,032 sqft · built 1942 · 0.25 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $315,000Feb 2023 | $5,8212025 | Owner on Record Owner Occupied | Assessor + 3 DocumentsUpdated Oct 2026 |
3 bd · 1.5 ba · 1,213 sqft · built 1948 · 0.25 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $190,000Mar 2006 | $7,0432025 | 2 Owners on Record Owner Occupied | Assessor + 1 DocumentUpdated Aug 2026 |
4 bd · 3 ba · 2,464 sqft · built 1950 · 0.23 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $7,5402025 | 2 Owners on Record | Assessor + 1 DocumentUpdated Feb 2026 |
4 bd · 2 ba · 1,530 sqft · built 1968 · 0.275 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $5,9122025 | Owner on Record | AssessorUpdated Feb 2026 |
3 bd · 1 ba · 828 sqft · built 1942 · 0.319 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $232,000Sep 2021 | $5,2212025 | Amount on Record Apr 2006 | Owner on Record Owner Occupied | Assessor + 3 DocumentsUpdated Feb 2026 |
3 bd · 1 ba · 1,132 sqft · built 1953 · 0.192 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $294,000May 2023 | $5,1422025 | Amount on Record Nov 2014 | Owner on Record Owner Occupied | Assessor + 4 DocumentsUpdated Feb 2026 |
2 bd · 2 ba · 1,092 sqft · built 1956 · 0.291 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $122,715Jan 2015 | $5,0842025 | —Jul 2014 | Owner on Record Owner Occupied | AssessorUpdated Feb 2026 |
3 bd · 1 ba · 1,190 sqft · built 1955 · 0.167 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $265,000Jul 2022 | $5,1732025 | 2 Owners on Record Owner Occupied | Assessor + 1 DocumentUpdated Feb 2026 |
3 bd · 1 ba · 949 sqft · built 1946 · 0.217 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $179,000Jul 2007 | $5,5882025 | Owner on Record Owner Occupied | AssessorUpdated Feb 2026 |
3 bd · 1 ba · 1,080 sqft · built 1953 · 0.135 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Oct 2019 | $5,2322025 | Amount on Record Sep 2015 | 2 Owners on Record Owner Occupied | Assessor + 3 DocumentsUpdated Feb 2026 |
4 bd · 2 ba · 927 sqft · built 1946 · 0.25 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $153,000Jul 2013 | $5,6892025 | 2 Owners on Record Owner Occupied | Assessor + 1 DocumentUpdated Feb 2026 |
2 bd · 1 ba · 980 sqft · built 1940 · 0.169 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $4,9522025 | Owner on Record Owner Occupied | AssessorUpdated Feb 2026 |
3 bd · 2 ba · 924 sqft · built 1947 · 0.25 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $136,000Jul 2013 | $5,8092025 | Amount on Record Mar 2008 | 2 Owners on Record Owner Occupied | Assessor + 2 DocumentsUpdated Feb 2026 |
3 bd · 1 ba · 888 sqft · built 1930 · 0.25 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $5,1732025 | Owner on Record Owner Occupied | AssessorUpdated Feb 2026 |
3 bd · 2 ba · 736 sqft · built 1955 · 0.326 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $165,000May 2008 | $5,3212025 | Owner on Record Owner Occupied | AssessorUpdated Feb 2026 |
3 bd · 2 ba · 1,309 sqft · built 1944 · 0.25 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $420,000May 2026 | $6,6902025 | Amount on Record Jan 2023 | Owner on Record Owner Occupied | Assessor + 3 DocumentsUpdated Oct 2026 |
2 bd · 1.5 ba · 1,178 sqft · built 1900 · 0.332 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $230,000Aug 2021 | $4,7392025 | Amount on Record Aug 2013 | 2 Owners on Record Owner Occupied | Assessor + 2 DocumentsUpdated Aug 2026 |
5 bd · 4 ba · 2,430 sqft · built 1967 · 0.285 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $8,1482025 | Owner on Record | AssessorUpdated Feb 2026 |
5 bd · 2 ba · 2,224 sqft · built 1969 · 0.419 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $285,000Oct 2018 | $6,9782025 | Owner on Record | Assessor + 3 DocumentsUpdated Oct 2026 |
3 bd · 2 ba · 1,395 sqft · built 1964 · 0.23 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $172,700Nov 2009 | $6,0362025 | Owner on Record Owner Occupied | Assessor + 1 DocumentUpdated Feb 2026 |
3 bd · 2 ba · 1,144 sqft · built 1964 · 0.26 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $6,0122025 | 3 Owners on Record Owner Occupied | AssessorUpdated Feb 2026 |
1.98 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| Owner on Record Owner Occupied | AssessorUpdated Feb 2026 |
4 bd · 2 ba · 1,392 sqft · built 1964 · 0.298 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $172,200Jul 2012 | $6,8382025 | Owner on Record Owner Occupied | Assessor + 1 DocumentUpdated Feb 2026 |
3 bd · 2 ba · 1,658 sqft · built 1967 · 0.31 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $7,5412025 | Owner on Record Owner Occupied | Assessor + 1 DocumentUpdated Feb 2026 |
3 bd · 3 ba · 1,582 sqft · built 1972 · 0.267 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $7,4782025 | 2 Owners on Record Owner Occupied | Assessor + 1 DocumentUpdated Feb 2026 |
4 bd · 3 ba · 1,449 sqft · built 1971 · 0.333 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $6,2062025 | Owner on Record Owner Occupied | AssessorUpdated Feb 2026 |