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Single Family ResidenceResidential
$479,550$143 / 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 93How 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
Last sold for $148,000 on Jun 18, 2012

803 THORNECREST DR

JANESVILLE, WI 53546
4
Beds
3.5
Baths
3,351 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.
0.38 ac
Lot SizeThe size of the land the home sits on, from county records.
1986
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
8
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$480K
$447K low$512K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$148,000 · Jun 18, 2012

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$6,811 (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.$391,300 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$61,100
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$330,200
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$416,011

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.113 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%
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.Single Family Residence
StyleThe architectural style of the home, such as ranch or colonial.Ranch
CountyROCK
Lot (acres)The size of the land the home sits on, from county records.0.38
HeatingThe type of heating system 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.Deck · 590 ft²Patio · 756 ft²Porch · 206 ft²

Transaction History(4)

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

Foreclosure Filings(2)

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

E
Harrison Elementary SchoolB+
Elementary · Grades KG–5 · 0.2 mi
M
Marshall Middle SchoolC+
Middle · Grades 6–8 · 0.9 mi
H
Craig High SchoolD+
High · Grades 9–12 · 1.9 mi

District: Janesville 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%

Owner Tools

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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

803 Thornecrest 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 94% of homes in Janesville 53546
  • Costs less per square foot than 96% of homes in Janesville 53546
  • Among the largest homes in Janesville 53546
  • Has a bigger lot than 80% of homes in Janesville 53546
  • Newer than 73% of homes in Rock County

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
$152K$568K

This home is worth more than 94% 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$479,550
CheaperTypical $308,122Pricier

Pricier than 94% of homes nearby

Price per ft²$143
CheaperTypical $219Pricier

Pricier than 4% of homes nearby

Living area3,351 ft²
SmallerTypical 1,362 ft²Bigger

Bigger than almost all homes nearby

Lot size0.38 ac
SmallerTypical 0.25 acBigger

Bigger than 80% of homes nearby

Year built1986
OlderTypical 1986Newer

Newer than 51% of homes nearby

How 803 Thornecrest Dr ranks against every home in each area.
MeasureThis homeJanesville 53546Rock County
Estimated valuepricier than$479,55094% of homes89% of homes
Price per ft²pricier than$1434% of homes21% of homes
Living areabigger than3,351 ft²almost all homes98% of homes
Lot sizebigger than0.38 ac80% of homes69% of homes
Year builtnewer than198651% of homes73% of homes

About 803 Thornecrest Dr

How much is 803 Thornecrest Dr, Janesville, WI worth?

The TopHap Estimate for 803 Thornecrest Dr, Janesville, WI is $479,550 as of Sep 24, 2026. The likely range is $447,491 to $511,609. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 803 Thornecrest Dr, Janesville, WI last sell?

803 Thornecrest Dr, Janesville, WI last sold on Jun 18, 2012 for $148,000, according to the county's recorded deed. TopHap holds 4 recorded sales for this parcel.

How big is 803 Thornecrest Dr, Janesville, WI?

803 Thornecrest Dr, Janesville, WI has 4 bedrooms, 3.5 bathrooms, 3,351 square feet of living space and a 0.38-acre lot.

When was 803 Thornecrest Dr, Janesville, WI built?

803 Thornecrest Dr, Janesville, WI was built in 1986, making it 40 years old. It is a ranch home. The building has 1 story.

What schools serve 803 Thornecrest Dr, Janesville, WI?

803 Thornecrest Dr, Janesville, WI is assigned to Harrison Elementary School (elementary), rated B+; Marshall Middle School (middle), rated C+; Craig High School (high), rated D+. All sit in Janesville School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 803 Thornecrest Dr, Janesville, WI compare to other homes in Janesville 53546?

Among the 10,824 homes in Janesville 53546, it is worth more than 94% of them ($479,550 against a typical $308,122), its price per square foot is higher than 4% of them ($143 against a typical $219), it is bigger than almost all of them (3,351 ft² against a typical 1,362 ft²), its lot is bigger than 80% of them (0.38 ac against a typical 0.25 ac) and it is newer than 51% of them (1986 against a typical 1986). Measured against all of Rock County, it is worth more than 89% 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 803 Thornecrest Dr, Janesville, WI?

The 2025 property tax bill for 803 Thornecrest Dr, Janesville, WI was $6,811. The county assessed it at $391,300.

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