181 Union St
Sun Prairie, WI 53590
3 bd 3 ba 2,032 sqft Built 1942 Lot 10,890 sqft single_family
No recorded sales
Location
Timeline: Sale, Listing & Tax History
Recorded events
No recorded events
No sale or listing events are on file for this property.
Tax assessment history
| Year | Building | Land | Total assessed | Tax paid |
|---|---|---|---|---|
| 2025 | $230,500 | $66,100 | $296,600 | $5,821 |
| 2023 | $230,500 | $66,100 | $296,600 | $5,015 |
| 2022 | $198,200 | $60,800 | $259,000 | $5,483 |
| 2021 | $198,200 | $60,800 | $259,000 | $5,366 |
| 2020 | $198,200 | $60,800 | $259,000 | $5,510 |
| 2019 | $157,200 | $53,000 | $210,200 | $5,012 |
| 2018 | $157,200 | $53,000 | $210,200 | $4,649 |
| 2017 | $157,200 | $53,000 | $210,200 | $4,476 |
| 2016 | $140,100 | $46,500 | $186,600 | $4,380 |
| 2015 | $140,100 | $46,500 | $186,600 | $4,258 |
| 2014 | $127,500 | $46,500 | $174,000 | $3,990 |
| 2013 | $127,500 | $46,500 | $174,000 | $4,188 |
| 2012 | $145,600 | $48,500 | $194,100 | $4,429 |
| 2011 | $145,600 | $48,500 | $194,100 | $4,535 |
| 2010 | $147,900 | $48,500 | $196,400 | $4,274 |
| 2008 | $154,600 | $48,500 | $203,100 | $4,075 |
| 2007 | $154,600 | $48,500 | $203,100 | $4,031 |
Property facts
Year built
1942
Property type
single_family
Stories
2
Beds
3
Baths
3
Living area
2,032 sqft
Lot size
10,890 sqft
ZIP code
53590
City
Sun Prairie
Street
Union St
Coordinates
43.18557, -89.21827
Comparable properties nearby
Block-level micro-comps
Same street, ±3 house numbers, sold in the last 24 monthsFrequently asked questions
When did 181 Union St last sell?
No public-record sale is on file for 181 Union St.
What is the current tax assessment for 181 Union St?
The most recent total assessment for 181 Union St (year 2025) is $296,600 with $5,821 in property tax.
When was 181 Union St built?
181 Union St was built in 1942.
How does 181 Union St compare to others on Union St?
We track 8 other properties on Union St. Browse the list under "Other properties on Union St" to compare beds, baths, and sale history.
What are the property facts for 181 Union St?
181 Union St is a 3 bed, 3 bath, 2,032 sqft, 10,890 sqft lot single_family.
Is 181 Union St a flip candidate?
No — 181 Union St does not appear in our flips dataset.
Is 181 Union St a tax-appeal candidate?
No — 181 Union St is not currently flagged as a tax-appeal candidate.
Forecast for this area
ZIP-area linear projection — not a per-property automated valuationQuarterly trend
+3.8%
Implied 1-yr
+15.0%
2026 Q3
$527.9K
2026 Q4
$543.9K
ZIP 53590 — Median Price History + Forecast
Explore nearby
Geography
Other properties on Union St