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CondominiumResidential
$418,302
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 92How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Aug 30, 2026
Last sold for $425,000 on Apr 1, 2025

3757 NEWCASTLE DR

JANESVILLE, WI 53546
0
Baths
0.22 ac
Lot SizeThe size of the land the home sits on, from county records.

Valuation

$418K
$387K low$450K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$425,000 · Apr 1, 2025

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$6,855 (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.$412,300 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$35,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$377,300
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$412,300

Climate Risk

Overall riskThe average of the five hazard scores below, on a 0 to 100 scale. Higher means greater projected risk over the coming decades.29
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
13
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
66
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
62
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
3
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
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.Condominium
CountyRock
Lot (acres)The size of the land the home sits on, from county records.0.22

Transaction History(2)

Sales and refinances filed with the county for this home. Not every transfer is a normal sale, so check the type before comparing prices.

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

E
Harmony Elementary SchoolA
Elementary · Grades PK–3 · 0.6 mi
H
Milton High SchoolB
High · Grades 9–12 · 3.3 mi
M
Milton Middle SchoolC
Middle · Grades 7–8 · 3.8 mi

District: Milton School District

Neighborhood · ZIP 53546These 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.102
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.88
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.32

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.96%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.18%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.7.9%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.0%
PopulationHow many people live in this area.31,634
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.403 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$73,028
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$85,718
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

3757 Newcastle Dr 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 more than 92% of homes in Janesville 53546
  • Has a smaller lot than 73% of homes in Janesville 53546

What homes are worth in Janesville 53546

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

This home
$138K$536K

This home is worth more than 92% of homes in Janesville 53546.

How it measures up in Janesville 53546

The dot is this home. The mark in the middle is the typical home in Janesville 53546.

Estimated value$418,302
CheaperTypical $292,780Pricier

Pricier than 92% of homes nearby

Lot size0.22 ac
SmallerTypical 0.25 acBigger

Bigger than 27% of homes nearby

How 3757 Newcastle Dr ranks against every home in each area.
MeasureThis homeJanesville 53546Rock County
Estimated valuepricier than$418,30292% of homes85% of homes
Lot sizebigger than0.22 ac27% of homes35% of homes

About 3757 Newcastle Dr

How much is 3757 Newcastle Dr, Janesville, WI worth?

The TopHap Estimate for 3757 Newcastle Dr, Janesville, WI is $418,302 as of Aug 30, 2026. The likely range is $386,716 to $449,888. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 3757 Newcastle Dr, Janesville, WI last sell?

3757 Newcastle Dr, Janesville, WI last sold on Apr 1, 2025 for $425,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

What schools serve 3757 Newcastle Dr, Janesville, WI?

3757 Newcastle Dr, Janesville, WI is assigned to Harmony Elementary School (elementary), rated A; Milton High School (high), rated B; Milton Middle School (middle), rated C. All sit in Milton School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 3757 Newcastle Dr, Janesville, WI compare to other homes in Janesville 53546?

Among the 10,824 homes in Janesville 53546, it is worth more than 92% of them ($418,302 against a typical $292,780) and its lot is bigger than 27% of them (0.22 ac against a typical 0.25 ac). Measured against all of Rock County, it is worth more than 85% 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 3757 Newcastle Dr, Janesville, WI?

The 2025 property tax bill for 3757 Newcastle Dr, Janesville, WI was $6,855. The county assessed it at $412,300.

More homes on Newcastle Dr

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Assigned schools

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