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Single Family ResidenceResidential
$308,463$255 / 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 87How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Oct 21, 2026
Last sold for $300,000 on Dec 1, 2025

105 KOSTER ST

MADISON, WI 53713
3
Beds
2
Baths
1,212 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.
0.21 ac
Lot SizeThe size of the land the home sits on, from county records.
1965
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.
3
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$308K
$270K low$347K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$300,000 · Dec 1, 2025

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,976 (2024)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$268,100 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$70,200
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$197,900
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$268,100
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$268,100

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
CountyDane
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.0.21
FoundationWhat the home is built on, such as a concrete slab, a crawl space, or a basement.Concrete
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.None
CoolingThe type of cooling or air conditioning in the home.Central
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Detached
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(6)

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
West High SchoolD+
High · Grades 9–12 · 2.7 mi
M
Cherokee Heights Middle SchoolD
Middle · Grades 6–8 · 3.3 mi
E
Midvale Elementary School
Elementary · Grades PK–2 · 3.4 mi

District: Madison Metropolitan School District

Neighborhood · ZIP 53713These 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.128
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.83
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.21

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.27%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.15%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.9%
PopulationHow many people live in this area.22,644
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,368 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$55,222
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$78,431
Average tempThe average temperature here across a full year.46°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

105 Koster St 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 less than 82% of homes in Dane County
  • Costs more per square foot than 81% of homes in Madison 53713
  • Smaller than 81% of homes in Dane County
  • Has a smaller lot than 65% of homes in Capitol View
  • Older than 67% of homes in Madison 53713

What homes are worth in Madison 53713

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

This home
$142K$1.2M

This home is worth more than 51% of homes in Madison 53713.

How it measures up in Madison 53713

The dot is this home. The mark in the middle is the typical home in Madison 53713.

Estimated value$308,463
CheaperTypical $305,032Pricier

Pricier than 51% of homes nearby

Price per ft²$255
CheaperTypical $207Pricier

Pricier than 81% of homes nearby

Living area1,212 ft²
SmallerTypical 1,563 ft²Bigger

Bigger than 29% of homes nearby

Lot size0.21 ac
SmallerTypical 0.25 acBigger

Bigger than 35% of homes nearby

Year built1965
OlderTypical 1973Newer

Newer than 33% of homes nearby

How 105 Koster St ranks against every home in each area.
MeasureThis homeCapitol ViewMadison 53713Dane County
Estimated valuepricier than$308,46367% of homes51% of homes18% of homes
Price per ft²pricier than$25561% of homes81% of homes55% of homes
Living areabigger than1,212 ft²36% of homes29% of homes19% of homes
Lot sizebigger than0.21 ac35% of homes35% of homes35% of homes
Year builtnewer than196553% of homes33% of homes39% of homes

About 105 Koster St

How much is 105 Koster St, Madison, WI worth?

The TopHap Estimate for 105 Koster St, Madison, WI is $308,463 as of Oct 21, 2026. The likely range is $269,904 to $347,022. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 105 Koster St, Madison, WI last sell?

105 Koster St, Madison, WI last sold on Dec 1, 2025 for $300,000, according to the county's recorded deed. TopHap holds 4 recorded sales for this parcel.

How big is 105 Koster St, Madison, WI?

105 Koster St, Madison, WI has 3 bedrooms, 2 bathrooms, 1,212 square feet of living space and a 0.21-acre lot.

When was 105 Koster St, Madison, WI built?

105 Koster St, Madison, WI was built in 1965, making it 61 years old. It is a ranch home. The building has 1 story.

What schools serve 105 Koster St, Madison, WI?

105 Koster St, Madison, WI is assigned to West High School (high), rated D+; Cherokee Heights Middle School (middle), rated D; Midvale Elementary School (elementary). All sit in Madison Metropolitan School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 105 Koster St, Madison, WI compare to other homes in Madison 53713?

Among the 3,483 homes in Madison 53713, it is worth more than 51% of them ($308,463 against a typical $305,032), its price per square foot is higher than 81% of them ($255 against a typical $207), it is bigger than 29% of them (1,212 ft² against a typical 1,563 ft²), its lot is bigger than 35% of them (0.21 ac against a typical 0.25 ac) and it is newer than 33% of them (1965 against a typical 1973). Measured against all of Dane County, it is worth more than 18% 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 105 Koster St, Madison, WI?

The 2024 property tax bill for 105 Koster St, Madison, WI was $4,976. The county assessed it at $268,100.

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