423 Prospect Ave
Waukesha, WI 53188
3 bd 2 ba 1,696 sqft Built 1915 Lot 14,810 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 | $298,800 | $87,100 | $385,900 | $5,159 |
| 2024 | $264,300 | $87,100 | $351,400 | $5,224 |
| 2023 | $264,300 | $87,100 | $351,400 | $5,082 |
| 2022 | $131,300 | $78,200 | $209,500 | $3,986 |
| 2021 | $131,300 | $78,200 | $209,500 | $4,076 |
| 2020 | $131,300 | $78,200 | $209,500 | $3,945 |
| 2019 | $131,300 | $78,200 | $209,500 | $3,819 |
| 2018 | $125,600 | $68,400 | $194,000 | $3,609 |
| 2017 | $122,100 | $68,400 | $190,500 | $3,536 |
| 2016 | $100,300 | $66,500 | $166,800 | $3,287 |
| 2015 | $100,300 | $66,500 | $166,800 | $3,269 |
| 2014 | $98,600 | $66,500 | $165,100 | $3,293 |
| 2013 | $98,600 | $66,500 | $165,100 | $3,374 |
| 2012 | $97,400 | $78,200 | $175,600 | $3,516 |
| 2010 | $110,600 | $78,200 | $188,800 | $3,658 |
| 2009 | $110,600 | $78,200 | $188,800 | $3,661 |
| 2008 | $124,400 | $50,800 | $175,200 | $3,345 |
Property facts
Year built
1915
Property type
single_family
Stories
—
Beds
3
Baths
2
Living area
1,696 sqft
Lot size
14,810 sqft
ZIP code
53188
City
Waukesha
Street
Prospect Ave
Coordinates
43.01994, -88.23611
Comparable properties nearby
Block-level micro-comps
Same street, ±3 house numbers, sold in the last 24 monthsFrequently asked questions
When did 423 Prospect Ave last sell?
No public-record sale is on file for 423 Prospect Ave.
What is the current tax assessment for 423 Prospect Ave?
The most recent total assessment for 423 Prospect Ave (year 2025) is $385,900 with $5,159 in property tax.
When was 423 Prospect Ave built?
423 Prospect Ave was built in 1915.
How does 423 Prospect Ave compare to others on Prospect Ave?
We track 8 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 423 Prospect Ave?
423 Prospect Ave is a 3 bed, 2 bath, 1,696 sqft, 14,810 sqft lot single_family.
Is 423 Prospect Ave a flip candidate?
No — 423 Prospect Ave does not appear in our flips dataset.
Is 423 Prospect Ave a tax-appeal candidate?
No — 423 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
+1.0%
Implied 1-yr
+3.9%
2026 Q3
$443.4K
2026 Q4
$447.4K
ZIP 53188 — Median Price History + Forecast
Explore nearby
Geography
Other properties on Prospect Ave