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Single Family ResidenceResidential
$413,899$186 / 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 92How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Jul 14, 2026

4102 N RIVER HILLS CT

JANESVILLE, WI 53545
3
Beds
3 / 1
Baths
2,226 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.
0.6 ac
Lot SizeThe size of the land the home sits on, from county records.
1982
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$414K
$381K low$447K high
Est. Owner EquityRoughly how much of the home's value the owner would keep after paying off known loans. It is our estimate minus the loans still owed.$413,899
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$331,119

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,959 (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.$320,200 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$51,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$269,200
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$320,200
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$356,800

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
StyleThe architectural style of the home, such as ranch or colonial.Split Level
CountyRock
Lot (acres)The size of the land the home sits on, from county records.0.60
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Forced Air
CoolingThe type of cooling or air conditioning in the home.Yes
FireplaceWhether the home has a fireplace, and what kind.Yes

Transaction History(1)

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
Consolidated Elementary SchoolA+
Elementary · Grades KG–3 · 0.8 mi
H
Milton High SchoolB
High · Grades 9–12 · 6.0 mi
M
Milton Middle SchoolC
Middle · Grades 7–8 · 6.4 mi

District: Milton School District

Neighborhood · ZIP 53545These 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.97
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.87
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.30

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.94%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.21%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.8.0%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.1%
PopulationHow many people live in this area.22,576
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.928 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$73,159
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$89,377
Average tempThe average temperature here across a full year.47°F
Annual precipHow much rain and melted snow falls here in a typical year.34 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.54%

Ownership

OccupancyWhether the owner appears to live here or somewhere else. It is inferred from the mailing address on record.Owner occupied
Company ownedWhether the owner is a company or trust rather than a person.No

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

4102 N River Hills Ct 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 85% of homes in Janesville 53545
  • Bigger than 88% of homes in Rock County
  • Has a bigger lot than 87% of homes in Janesville 53545
  • Newer than 85% of homes in Janesville 53545

What homes are worth in Janesville 53545

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

This home
$145K$763K

This home is worth more than 85% of homes in Janesville 53545.

How it measures up in Janesville 53545

The dot is this home. The mark in the middle is the typical home in Janesville 53545.

Estimated value$413,899
CheaperTypical $283,348Pricier

Pricier than 85% of homes nearby

Price per ft²$186
CheaperTypical $202Pricier

Pricier than 38% of homes nearby

Living area2,226 ft²
SmallerTypical 1,438 ft²Bigger

Bigger than 86% of homes nearby

Lot size0.6 ac
SmallerTypical 0.23 acBigger

Bigger than 87% of homes nearby

Year built1982
OlderTypical 1958Newer

Newer than 85% of homes nearby

How 4102 N River Hills Ct ranks against every home in each area.
MeasureThis homeJanesville 53545Rock County
Estimated valuepricier than$413,89985% of homes82% of homes
Price per ft²pricier than$18638% of homes49% of homes
Living areabigger than2,226 ft²86% of homes88% of homes
Lot sizebigger than0.6 ac87% of homes79% of homes
Year builtnewer than198285% of homes71% of homes

About 4102 N River Hills Ct

How much is 4102 N River Hills Ct, Janesville, WI worth?

The TopHap Estimate for 4102 N River Hills Ct, Janesville, WI is $413,899 as of Jul 14, 2026. The likely range is $381,243 to $446,555. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

How big is 4102 N River Hills Ct, Janesville, WI?

4102 N River Hills Ct, Janesville, WI has 3 bedrooms, 3 bathrooms, 2,226 square feet of living space and a 0.60-acre lot.

When was 4102 N River Hills Ct, Janesville, WI built?

4102 N River Hills Ct, Janesville, WI was built in 1982, making it 44 years old. It is a split level home. The building has 2 stories.

What schools serve 4102 N River Hills Ct, Janesville, WI?

4102 N River Hills Ct, Janesville, WI is assigned to Consolidated 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 4102 N River Hills Ct, Janesville, WI compare to other homes in Janesville 53545?

Among the 7,842 homes in Janesville 53545, it is worth more than 85% of them ($413,899 against a typical $283,348), its price per square foot is higher than 38% of them ($186 against a typical $202), it is bigger than 86% of them (2,226 ft² against a typical 1,438 ft²), its lot is bigger than 87% of them (0.6 ac against a typical 0.23 ac) and it is newer than 85% of them (1982 against a typical 1958). Measured against all of Rock County, it is worth more than 82% 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 4102 N River Hills Ct, Janesville, WI?

The 2025 property tax bill for 4102 N River Hills Ct, Janesville, WI was $3,959. The county assessed it at $320,200.

Closest homes

More homes in Janesville 53545

Assigned schools

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