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Single Family ResidenceResidential
$305,671$243 / 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 95How 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 $122,400 on Sep 15, 2003

4305 OLDWYCK DR

JANESVILLE, WI 53546
3
Beds
2
Baths
1,260 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.
0.25 ac
Lot SizeThe size of the land the home sits on, from county records.
1980
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.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$306K
$292K low$320K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$122,400 · Sep 15, 2003

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,999 (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.$236,100 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$28,800
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$207,300
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$236,100

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
Effective Year BuiltAn adjusted build year that accounts for condition and major remodels. A big renovation can make a home count as newer than it is.1982
Lot (acres)The size of the land the home sits on, from county records.0.25
HeatingThe type of heating system in the home.Yes
CoolingThe type of cooling or air conditioning in the home.Yes
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Porch · 40 ft²

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 · 0.7 mi
M
Marshall Middle SchoolC+
Middle · Grades 6–8 · 1.4 mi
H
Craig High SchoolD+
High · Grades 9–12 · 2.2 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%

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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

4305 Oldwyck 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.

  • Costs more per square foot than 82% of homes in Rock County
  • Newer than 70% 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 49% 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$305,671
CheaperTypical $308,122Pricier

Pricier than 49% of homes nearby

Price per ft²$243
CheaperTypical $219Pricier

Pricier than 71% of homes nearby

Living area1,260 ft²
SmallerTypical 1,362 ft²Bigger

Bigger than 41% of homes nearby

Lot size0.25 ac
SmallerTypical 0.25 acBigger

Bigger than 50% of homes nearby

Year built1980
OlderTypical 1986Newer

Newer than 44% of homes nearby

How 4305 Oldwyck Dr ranks against every home in each area.
MeasureThis homeJanesville 53546Rock County
Estimated valuepricier than$305,67149% of homes57% of homes
Price per ft²pricier than$24371% of homes82% of homes
Living areabigger than1,260 ft²41% of homes41% of homes
Lot sizebigger than0.25 ac50% of homes48% of homes
Year builtnewer than198044% of homes70% of homes

About 4305 Oldwyck Dr

How much is 4305 Oldwyck Dr, Janesville, WI worth?

The TopHap Estimate for 4305 Oldwyck Dr, Janesville, WI is $305,671 as of Sep 24, 2026. The likely range is $291,765 to $319,577. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 4305 Oldwyck Dr, Janesville, WI last sell?

4305 Oldwyck Dr, Janesville, WI last sold on Sep 15, 2003 for $122,400, according to the county's recorded deed.

How big is 4305 Oldwyck Dr, Janesville, WI?

4305 Oldwyck Dr, Janesville, WI has 3 bedrooms, 2 bathrooms, 1,260 square feet of living space and a 0.25-acre lot.

When was 4305 Oldwyck Dr, Janesville, WI built?

4305 Oldwyck Dr, Janesville, WI was built in 1980, making it 46 years old. It is a ranch home. The building has 1 story.

What schools serve 4305 Oldwyck Dr, Janesville, WI?

4305 Oldwyck 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 4305 Oldwyck Dr, Janesville, WI compare to other homes in Janesville 53546?

Among the 10,824 homes in Janesville 53546, it is worth more than 49% of them ($305,671 against a typical $308,122), its price per square foot is higher than 71% of them ($243 against a typical $219), it is bigger than 41% of them (1,260 ft² against a typical 1,362 ft²), its lot is bigger than 50% of them (0.25 ac against a typical 0.25 ac) and it is newer than 44% of them (1980 against a typical 1986). Measured against all of Rock County, it is worth more than 57% 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 4305 Oldwyck Dr, Janesville, WI?

The 2025 property tax bill for 4305 Oldwyck Dr, Janesville, WI was $3,999. The county assessed it at $236,100.

More homes on Oldwyck Dr

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Assigned schools

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