1230 Union St
Platteville, WI 53818
4 bd 3 ba 3,638 sqft Built 1998 Lot 35,719 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 | $285,500 | $50,500 | $336,000 | $5,165 |
| 2023 | $253,200 | $50,500 | $303,700 | $5,817 |
| 2022 | $253,200 | $50,500 | $303,700 | $5,480 |
| 2021 | $193,900 | $50,500 | $244,400 | $4,880 |
| 2020 | $173,900 | $50,500 | $224,400 | $4,582 |
| 2019 | $173,900 | $50,500 | $224,400 | $4,630 |
| 2018 | $173,900 | $50,500 | $224,400 | $4,624 |
| 2017 | $176,700 | $33,300 | $210,000 | $4,675 |
| 2016 | $176,700 | $33,300 | $210,000 | $4,685 |
| 2015 | $176,700 | $33,300 | $210,000 | $4,735 |
| 2014 | $176,700 | $33,300 | $210,000 | $4,701 |
| 2013 | $176,700 | $33,300 | $210,000 | $4,828 |
| 2012 | $176,700 | $33,300 | $210,000 | $4,768 |
| 2011 | $176,700 | $33,300 | $210,000 | $4,626 |
| 2010 | $176,700 | $33,300 | $210,000 | $4,646 |
| 2007 | $137,000 | $26,600 | $163,600 | $4,862 |
| 2005 | $137,000 | $26,600 | $163,600 | $3,978 |
Property facts
Year built
1998
Property type
single_family
Stories
2
Beds
4
Baths
3
Living area
3,638 sqft
Lot size
35,719 sqft
ZIP code
53818
City
Platteville
Street
Union St
Coordinates
42.74066, -90.49399
Comparable properties nearby
Frequently asked questions
When did 1230 Union St last sell?
No public-record sale is on file for 1230 Union St.
What is the current tax assessment for 1230 Union St?
The most recent total assessment for 1230 Union St (year 2025) is $336,000 with $5,165 in property tax.
When was 1230 Union St built?
1230 Union St was built in 1998.
How does 1230 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 1230 Union St?
1230 Union St is a 4 bed, 3 bath, 3,638 sqft, 35,719 sqft lot single_family.
Is 1230 Union St a flip candidate?
No — 1230 Union St does not appear in our flips dataset.
Is 1230 Union St a tax-appeal candidate?
No — 1230 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
+15.4%
2026 Q3
$331.9K
2026 Q4
$342.1K
ZIP 53818 — Median Price History + Forecast
Explore nearby
Geography
Other properties on Union St