18340 National Ave
New Berlin, WI 53146
3 bd 2 ba 1,708 sqft Built 1940 Lot 54,014 sqft single_family
Most recent sale
$290,000
Dec 20, 2021
Location
Timeline: Sale, Listing & Tax History
Recorded events
| Date | Event | Price | Source |
|---|---|---|---|
| Dec 20, 2021 | Sold | $290,000 | MLS #1771132 |
Tax assessment history
| Year | Building | Land | Total assessed | Tax paid |
|---|---|---|---|---|
| 2025 | $183,900 | $153,800 | $337,700 | $4,146 |
| 2024 | $183,900 | $153,800 | $337,700 | $3,892 |
| 2023 | $155,300 | $60,900 | $216,200 | $3,182 |
| 2022 | $155,300 | $60,900 | $216,200 | $3,272 |
| 2021 | $155,300 | $60,900 | $216,200 | $3,187 |
| 2020 | $155,300 | $60,900 | $216,200 | $3,225 |
| 2019 | $155,300 | $60,900 | $216,200 | $3,301 |
| 2018 | $155,300 | $60,900 | $216,200 | $3,355 |
| 2017 | $133,200 | $52,600 | $185,800 | $3,210 |
| 2016 | $133,200 | $52,600 | $185,800 | $3,237 |
| 2015 | $133,200 | $52,600 | $185,800 | $3,235 |
| 2014 | $124,700 | $49,200 | $173,900 | $3,191 |
| 2013 | $124,700 | $49,200 | $173,900 | $3,199 |
| 2012 | $124,700 | $49,200 | $173,900 | $3,195 |
| 2010 | $143,200 | $56,500 | $199,700 | $3,254 |
| 2009 | $143,200 | $56,500 | $199,700 | $3,184 |
| 2008 | $134,500 | $53,900 | $188,400 | $3,177 |
| 2006 | $134,500 | $53,900 | $188,400 | $3,053 |
Property facts
Year built
1940
Property type
single_family
Stories
—
Beds
3
Baths
2
Living area
1,708 sqft
Lot size
54,014 sqft
ZIP code
53146
City
New Berlin
Street
National Ave
Coordinates
42.95466, -88.14344
Comparable properties nearby
Investment analysis
Estimates based on local averages — not personalized adviceEstimated monthly rent
$2,562
Gross rental yield
10.60%
Implied cap rate
6.89%
Trend-extrapolated value
—
Frequently asked questions
When did 18340 National Ave last sell?
18340 National Ave most recently sold on Dec 20, 2021 for $290,000.
What is the current tax assessment for 18340 National Ave?
The most recent total assessment for 18340 National Ave (year 2025) is $337,700 with $4,146 in property tax.
How does 18340 National Ave's assessment compare to its last sale price?
The current assessment is 16.4% above the last sale price of $290,000.
When was 18340 National Ave built?
18340 National Ave was built in 1940.
How does 18340 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 18340 National Ave?
18340 National Ave is a 3 bed, 2 bath, 1,708 sqft, 54,014 sqft lot single_family.
Is 18340 National Ave a flip candidate?
No — 18340 National Ave does not appear in our flips dataset.
Is 18340 National Ave a tax-appeal candidate?
Yes — 18340 National Ave appears in our tax-appeal candidates list, meaning its current assessment exceeds its recent sale price by 15% or more.
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