20 Main St
Janesville, WI 53545
— ba 24,908 sqft Built 1918 Lot 17,424 sqft other
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 | $783,000 | $97,700 | $880,700 | $17,864 |
| 2023 | $783,000 | $97,700 | $880,700 | $17,178 |
| 2022 | $452,300 | $97,700 | $550,000 | $14,403 |
| 2021 | $452,300 | $97,700 | $550,000 | $14,515 |
| 2020 | $452,300 | $97,700 | $550,000 | $13,908 |
| 2019 | $763,900 | $97,700 | $861,600 | $22,261 |
| 2018 | $571,100 | $97,700 | $668,800 | $20,027 |
| 2017 | $571,100 | $97,700 | $668,800 | $19,491 |
| 2016 | $571,100 | $97,700 | $668,800 | $17,775 |
| 2015 | $571,100 | $97,700 | $668,800 | $17,038 |
| 2014 | $571,100 | $97,700 | $668,800 | $16,359 |
| 2013 | $571,100 | $97,700 | $668,800 | $16,681 |
| 2012 | $571,100 | $97,700 | $668,800 | $16,463 |
| 2011 | $571,100 | $97,700 | $668,800 | $16,662 |
| 2010 | $417,600 | $87,200 | $504,800 | $13,236 |
| 2008 | $430,400 | $87,200 | $517,600 | $13,343 |
| 2007 | $430,400 | $87,200 | $517,600 | $13,178 |
| 2006 | $430,400 | $87,200 | $517,600 | $12,492 |
Property facts
Year built
1918
Property type
other
Stories
2
Beds
—
Baths
—
Living area
24,908 sqft
Lot size
17,424 sqft
ZIP code
53545
City
Janesville
Street
Main St
Coordinates
42.68222, -89.02224
Comparable properties nearby
Block-level micro-comps
Same street, ±3 house numbers, sold in the last 24 monthsFrequently asked questions
When did 20 Main St last sell?
No public-record sale is on file for 20 Main St.
What is the current tax assessment for 20 Main St?
The most recent total assessment for 20 Main St (year 2025) is $880,700 with $17,864 in property tax.
When was 20 Main St built?
20 Main St was built in 1918.
How does 20 Main St compare to others on Main St?
We track 8 other properties on Main St. Browse the list under "Other properties on Main St" to compare beds, baths, and sale history.
What are the property facts for 20 Main St?
20 Main St is a — bath, 24,908 sqft, 17,424 sqft lot other.
Is 20 Main St a flip candidate?
No — 20 Main St does not appear in our flips dataset.
Is 20 Main St a tax-appeal candidate?
No — 20 Main 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
+0.5%
Implied 1-yr
+2.1%
2026 Q3
$334.6K
2026 Q4
$336.3K
ZIP 53545 — Median Price History + Forecast
Explore nearby
Geography
Other properties on Main St