21700 National Ave
New Berlin, WI 53146
3 bd 2 ba 1,512 sqft Built 1966 Lot 140,699 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 | $300,200 | $147,600 | $447,800 | $5,259 |
| 2024 | $300,200 | $147,600 | $447,800 | $5,388 |
| 2023 | $249,500 | $81,000 | $330,500 | $4,955 |
| 2022 | $249,500 | $81,000 | $330,500 | $4,617 |
| 2021 | $249,500 | $81,000 | $330,500 | $4,350 |
| 2020 | $249,500 | $81,000 | $330,500 | $4,692 |
| 2019 | $249,500 | $81,000 | $330,500 | $4,725 |
| 2018 | $211,800 | $81,000 | $292,800 | $4,169 |
| 2017 | $194,100 | $71,300 | $265,400 | $3,989 |
| 2016 | $194,100 | $71,300 | $265,400 | $4,282 |
| 2015 | $194,100 | $71,300 | $265,400 | $4,296 |
| 2014 | $182,100 | $66,800 | $248,900 | $4,315 |
| 2013 | $182,100 | $66,800 | $248,900 | $4,485 |
| 2012 | $182,100 | $66,800 | $248,900 | $4,535 |
| 2010 | $200,100 | $73,500 | $273,600 | $4,608 |
| 2009 | $200,100 | $73,500 | $273,600 | $4,299 |
| 2008 | $191,600 | $69,800 | $261,400 | $4,500 |
| 2006 | $191,600 | $69,800 | $261,400 | $4,066 |
Property facts
Year built
1966
Property type
single_family
Stories
1
Beds
3
Baths
2
Living area
1,512 sqft
Lot size
140,699 sqft
ZIP code
53146
City
New Berlin
Street
National Ave
Coordinates
42.92981, -88.18612
Comparable properties nearby
Frequently asked questions
When did 21700 National Ave last sell?
No public-record sale is on file for 21700 National Ave.
What is the current tax assessment for 21700 National Ave?
The most recent total assessment for 21700 National Ave (year 2025) is $447,800 with $5,259 in property tax.
When was 21700 National Ave built?
21700 National Ave was built in 1966.
How does 21700 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 21700 National Ave?
21700 National Ave is a 3 bed, 2 bath, 1,512 sqft, 140,699 sqft lot single_family.
Is 21700 National Ave a flip candidate?
No — 21700 National Ave does not appear in our flips dataset.
Is 21700 National Ave a tax-appeal candidate?
No — 21700 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