18540 National Ave
New Berlin, WI 53146
— ba 4,228 sqft Built 1890 Lot 37,026 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 | $376,000 | $135,500 | $511,500 | $6,326 |
| 2024 | $376,000 | $135,500 | $511,500 | $5,969 |
| 2023 | $363,400 | $72,300 | $435,700 | $6,560 |
| 2022 | $363,400 | $72,300 | $435,700 | $6,801 |
| 2021 | $363,400 | $72,300 | $435,700 | $6,451 |
| 2020 | $363,400 | $72,300 | $435,700 | $6,457 |
| 2019 | $363,400 | $72,300 | $435,700 | $6,690 |
| 2018 | $363,400 | $72,300 | $435,700 | $6,782 |
| 2017 | $338,700 | $70,400 | $409,100 | $6,997 |
| 2016 | $338,700 | $70,400 | $409,100 | $7,084 |
| 2015 | $338,700 | $70,400 | $409,100 | $7,029 |
| 2014 | $316,800 | $67,100 | $383,900 | $7,044 |
| 2013 | $316,800 | $67,100 | $383,900 | $7,298 |
| 2012 | $316,800 | $67,100 | $383,900 | $7,239 |
| 2010 | $348,100 | $67,100 | $415,200 | $7,034 |
| 2009 | $348,100 | $67,100 | $415,200 | $6,863 |
| 2008 | $301,400 | $57,800 | $359,200 | $6,259 |
| 2006 | $301,400 | $45,100 | $346,500 | $6,043 |
Property facts
Year built
1890
Property type
other
Stories
—
Beds
—
Baths
—
Living area
4,228 sqft
Lot size
37,026 sqft
ZIP code
53146
City
New Berlin
Street
National Ave
Coordinates
42.95276, -88.14576
Comparable properties nearby
Frequently asked questions
When did 18540 National Ave last sell?
No public-record sale is on file for 18540 National Ave.
What is the current tax assessment for 18540 National Ave?
The most recent total assessment for 18540 National Ave (year 2025) is $511,500 with $6,326 in property tax.
When was 18540 National Ave built?
18540 National Ave was built in 1890.
How does 18540 National Ave compare to others on National Ave?
We track 8 other properties on National Ave. Browse the list under "Other properties on National Ave" to compare beds, baths, and sale history.
What are the property facts for 18540 National Ave?
18540 National Ave is a — bath, 4,228 sqft, 37,026 sqft lot other.
Is 18540 National Ave a flip candidate?
No — 18540 National Ave does not appear in our flips dataset.
Is 18540 National Ave a tax-appeal candidate?
No — 18540 National 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
-1.8%
Implied 1-yr
-7.3%
2026 Q2
$456.7K
2026 Q3
$447.3K
ZIP 53146 — Median Price History + Forecast
Explore nearby
Geography
Other properties on National Ave