621 Prospect Ave
Janesville, WI 53545
3 bd 2 ba 2,332 sqft Built 1892 Lot 3,920 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 | $226,300 | $11,500 | $237,800 | $4,030 |
| 2023 | $226,300 | $11,500 | $237,800 | $3,820 |
| 2022 | $133,800 | $11,500 | $145,300 | $3,224 |
| 2021 | $133,800 | $11,500 | $145,300 | $3,226 |
| 2020 | $133,800 | $11,500 | $145,300 | $3,163 |
| 2019 | $133,800 | $11,500 | $145,300 | $3,060 |
| 2018 | $94,600 | $11,500 | $106,100 | $2,633 |
| 2017 | $94,600 | $11,500 | $106,100 | $2,604 |
| 2016 | $91,400 | $11,500 | $102,900 | $2,602 |
| 2015 | $91,400 | $11,500 | $102,900 | $2,366 |
| 2014 | $91,400 | $11,500 | $102,900 | $2,362 |
| 2013 | $91,400 | $11,500 | $102,900 | $2,545 |
| 2012 | $91,400 | $11,500 | $102,900 | $2,388 |
| 2011 | $91,400 | $11,500 | $102,900 | $2,581 |
| 2010 | $81,700 | $11,500 | $93,200 | $2,331 |
| 2008 | $81,700 | $11,500 | $93,200 | $2,404 |
| 2007 | $81,700 | $11,500 | $93,200 | $2,288 |
| 2006 | $81,700 | $11,500 | $93,200 | $2,160 |
Property facts
Year built
1892
Property type
single_family
Stories
2
Beds
3
Baths
2
Living area
2,332 sqft
Lot size
3,920 sqft
ZIP code
53545
City
Janesville
Street
Prospect Ave
Coordinates
42.68752, -89.01907
Comparable properties nearby
Frequently asked questions
When did 621 Prospect Ave last sell?
No public-record sale is on file for 621 Prospect Ave.
What is the current tax assessment for 621 Prospect Ave?
The most recent total assessment for 621 Prospect Ave (year 2025) is $237,800 with $4,030 in property tax.
When was 621 Prospect Ave built?
621 Prospect Ave was built in 1892.
How does 621 Prospect Ave compare to others on Prospect Ave?
We track 4 other properties on Prospect Ave. Browse the list under "Other properties on Prospect Ave" to compare beds, baths, and sale history.
What are the property facts for 621 Prospect Ave?
621 Prospect Ave is a 3 bed, 2 bath, 2,332 sqft, 3,920 sqft lot single_family.
Is 621 Prospect Ave a flip candidate?
No — 621 Prospect Ave does not appear in our flips dataset.
Is 621 Prospect Ave a tax-appeal candidate?
No — 621 Prospect Ave 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 Prospect Ave