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Residential (General/Single)Residential
$370,754$216 / ft²
TopHap EstimateOur estimate of what this home would sell for today, based on nearby sales, the home's size and features, and local price trends. It is a starting point, not an appraisal.· confidence 89How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Sep 24, 2026

21840 LOCHLEVEN LN

NEW BERLIN, WI 53146
3
Beds
2 / 2
Baths
1,713 ft²
Living AreaTotal finished area of the structures, from county records. Some counties include shared space like hallways or a building gym, so it may not match a listing.
0.5 ac
Lot SizeThe size of the land the home sits on, from county records.
1965
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
6
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$371K
$330K low$411K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,871 (2025)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$315,400 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$101,700
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$213,700
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$356,100

Climate Risk

Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.15 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.6%
FEMA Flood ZoneFEMA's flood zone for this address. Zones starting with A or V are high risk, and lenders usually require flood insurance there.minimal

Scores 0–100; higher = greater projected risk.

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Residential (General/Single)
StyleThe architectural style of the home, such as ranch or colonial.Split Level
CountyWAUKESHA
Lot (acres)The size of the land the home sits on, from county records.0.50
RoofThe main material covering the roof, such as asphalt shingle or tile.Tile
HeatingThe type of heating system in the home.Forced Air With Air Conditioning
CoolingThe type of cooling or air conditioning in the home.Yes
FireplaceWhether the home has a fireplace, and what kind.Yes
PoolWhether the property has a pool, and what kind, such as in-ground.No
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.DeckPorch · 72 ft²

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

E
Ronald Reagan Elementary SchoolB
Elementary · Grades PK–6 · 3.5 mi
M
New Berlin West Middle/HighA
Middle · Grades 7–12 · 4.1 mi

District: New Berlin School District

Neighborhood · ZIP 53146These are comparison scores, not percentages. 100 equals the national average, so 150 means about 50% above average.

CrimeLocal crime compared with the rest of the country, where 100 is average. It reflects things like population density, income, and how crime gets reported.64
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.79
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.28

Index scale: 100 = US average (tick). Lower is better.

Homes occupiedThe share of homes here that someone lives in. The rest sit empty, including vacation and for-sale homes.97%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.31%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.4.5%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.8%
PopulationHow many people live in this area.8,342
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.462 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$101,156
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$129,175
Average tempThe average temperature here across a full year.47°F
Annual precipHow much rain and melted snow falls here in a typical year.35 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.54%

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Data by ATTOM. Valuations are automated estimates, not appraisals. Photos from Google Street View and may not depict the current property state.

How this home compares

21840 Lochleven Ln measured against every home in its neighborhood, its ZIP code and its county, using county assessor records refreshed nightly. A home can stand out in one of those areas and look ordinary in another, because each one holds a different mix of homes.

  • Worth less than 76% of homes in Waukesha County
  • Costs less per square foot than 73% of homes in New Berlin 53146
  • Has a smaller lot than 82% of homes in New Berlin 53146

What homes are worth in New Berlin 53146

Each bar is how many homes fall in that price range. The marker is this home.

This home
$215K$1.2M

This home is worth more than 36% of homes in New Berlin 53146.

How it measures up in New Berlin 53146

The dot is this home. The mark in the middle is the typical home in New Berlin 53146.

Estimated value$370,754
CheaperTypical $402,638Pricier

Pricier than 36% of homes nearby

Price per ft²$216
CheaperTypical $241Pricier

Pricier than 27% of homes nearby

Living area1,713 ft²
SmallerTypical 1,722 ft²Bigger

Bigger than 49% of homes nearby

Lot size0.5 ac
SmallerTypical 0.81 acBigger

Bigger than 18% of homes nearby

Year built1965
OlderTypical 1966Newer

Newer than 48% of homes nearby

How 21840 Lochleven Ln ranks against every home in each area.
MeasureThis homeNew Berlin 53146Waukesha County
Estimated valuepricier than$370,75436% of homes24% of homes
Price per ft²pricier than$21627% of homes28% of homes
Living areabigger than1,713 ft²49% of homes45% of homes
Lot sizebigger than0.5 ac18% of homes50% of homes
Year builtnewer than196548% of homes37% of homes

About 21840 Lochleven Ln

How much is 21840 Lochleven Ln, New Berlin, WI worth?

The TopHap Estimate for 21840 Lochleven Ln, New Berlin, WI is $370,754 as of Sep 24, 2026. The likely range is $330,156 to $411,352. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21840 Lochleven Ln, New Berlin, WI last sell?

21840 Lochleven Ln, New Berlin, WI last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 21840 Lochleven Ln, New Berlin, WI?

21840 Lochleven Ln, New Berlin, WI has 3 bedrooms, 2 bathrooms, 1,713 square feet of living space and a 0.50-acre lot.

When was 21840 Lochleven Ln, New Berlin, WI built?

21840 Lochleven Ln, New Berlin, WI was built in 1965, making it 61 years old. It is a split level home. The building has 1 story.

What schools serve 21840 Lochleven Ln, New Berlin, WI?

21840 Lochleven Ln, New Berlin, WI is assigned to Ronald Reagan Elementary School (elementary), rated B; New Berlin West Middle/High (middle), rated A. All sit in New Berlin School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21840 Lochleven Ln, New Berlin, WI compare to other homes in New Berlin 53146?

Among the 3,068 homes in New Berlin 53146, it is worth more than 36% of them ($370,754 against a typical $402,638), its price per square foot is higher than 27% of them ($216 against a typical $241), it is bigger than 49% of them (1,713 ft² against a typical 1,722 ft²), its lot is bigger than 18% of them (0.5 ac against a typical 0.81 ac) and it is newer than 48% of them (1965 against a typical 1966). Measured against all of Waukesha County, it is worth more than 24% of homes there. These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 21840 Lochleven Ln, New Berlin, WI?

The 2025 property tax bill for 21840 Lochleven Ln, New Berlin, WI was $3,871. The county assessed it at $315,400.

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