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Single Family ResidenceResidential
$487,725$276 / 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 91How 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

344 KNOLLVIEW DR

JANESVILLE, WI 53548
3
Beds
2
Baths
1,767 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.
0.49 ac
Lot SizeThe size of the land the home sits on, from county records.
2016
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
5
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
3
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$488K
$445K low$531K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$7,683 (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.$428,000 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$40,900
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$387,100
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$428,000

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.7 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.0.49
HeatingThe type of heating system in the home.Yes
CoolingThe type of cooling or air conditioning in the home.Yes
FireplaceWhether the home has a fireplace, and what kind.Glass Log
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Deck · 182 ft²Patio · 182 ft²Porch · 96 ft²

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.

H
Parker High SchoolD+
High · Grades 9–12 · 0.4 mi
M
Franklin Middle SchoolC-
Middle · Grades 6–8 · 1.0 mi
E
Madison Elementary SchoolC
Elementary · Grades KG–5 · 1.2 mi

District: Janesville School District

Neighborhood · ZIP 53548These 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.92
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.92
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.17%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.11%
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.20,818
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.284 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$74,018
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$85,665
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

344 Knollview 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 90% of homes in Rock County
  • Costs more per square foot than 93% of homes in Rock County
  • Bigger than 74% of homes in Rock County
  • Has a bigger lot than 76% of homes in Janesville 53548
  • Newer than 98% of homes in Rock County

What homes are worth in Janesville 53548

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

This home
$105K$759K

This home is worth more than 89% of homes in Janesville 53548.

How it measures up in Janesville 53548

The dot is this home. The mark in the middle is the typical home in Janesville 53548.

Estimated value$487,725
CheaperTypical $280,415Pricier

Pricier than 89% of homes nearby

Price per ft²$276
CheaperTypical $193Pricier

Pricier than 91% of homes nearby

Living area1,767 ft²
SmallerTypical 1,454 ft²Bigger

Bigger than 70% of homes nearby

Lot size0.49 ac
SmallerTypical 0.25 acBigger

Bigger than 76% of homes nearby

Year built2016
OlderTypical 1963Newer

Newer than 97% of homes nearby

How 344 Knollview Dr ranks against every home in each area.
MeasureThis homeJanesville 53548Rock County
Estimated valuepricier than$487,72589% of homes90% of homes
Price per ft²pricier than$27691% of homes93% of homes
Living areabigger than1,767 ft²70% of homes74% of homes
Lot sizebigger than0.49 ac76% of homes76% of homes
Year builtnewer than201697% of homes98% of homes

About 344 Knollview Dr

How much is 344 Knollview Dr, Janesville, WI worth?

The TopHap Estimate for 344 Knollview Dr, Janesville, WI is $487,725 as of Sep 24, 2026. The likely range is $444,833 to $530,617. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 344 Knollview Dr, Janesville, WI last sell?

344 Knollview Dr, Janesville, WI last sold on Jan 18, 2016, according to the county's recorded deed.

How big is 344 Knollview Dr, Janesville, WI?

344 Knollview Dr, Janesville, WI has 3 bedrooms, 2 bathrooms, 1,767 square feet of living space and a 0.49-acre lot.

When was 344 Knollview Dr, Janesville, WI built?

344 Knollview Dr, Janesville, WI was built in 2016, making it 10 years old. It is a ranch home. The building has 1 story.

What schools serve 344 Knollview Dr, Janesville, WI?

344 Knollview Dr, Janesville, WI is assigned to Parker High School (high), rated D+; Franklin Middle School (middle), rated C-; Madison Elementary School (elementary), rated C. All sit in Janesville School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 344 Knollview Dr, Janesville, WI compare to other homes in Janesville 53548?

Among the 6,715 homes in Janesville 53548, it is worth more than 89% of them ($487,725 against a typical $280,415), its price per square foot is higher than 91% of them ($276 against a typical $193), it is bigger than 70% of them (1,767 ft² against a typical 1,454 ft²), its lot is bigger than 76% of them (0.49 ac against a typical 0.25 ac) and it is newer than 97% of them (2016 against a typical 1963). Measured against all of Rock County, it is worth more than 90% 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 344 Knollview Dr, Janesville, WI?

The 2025 property tax bill for 344 Knollview Dr, Janesville, WI was $7,683. The county assessed it at $428,000.

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