Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$279,520$231 / 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 94How 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

307 KOSTER ST

MADISON, WI 53713
2
Beds
1
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.
0.63 ac
Lot SizeThe size of the land the home sits on, from county records.
1918
Year BuiltThe year the home was originally built, according to county records.
2
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.

Valuation

$280K
$261K low$298K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$5,034 (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.$289,400 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$104,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$185,400
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$263,100
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$241,754

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.5 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
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.1974
Lot (acres)The size of the land the home sits on, from county records.0.64
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
CoolingThe type of cooling or air conditioning in the home.Window A/C
PoolWhether the property has a pool, and what kind, such as in-ground.No
ViewThe type of view from the property, or another feature of the site that affects value.Traffic
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Deck · 72 ft²Patio · 72 ft²Porch · 198 ft²

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.

H
West High SchoolA
High · Grades 9–12 · 2.5 mi
M
Cherokee Heights Middle SchoolC-
Middle · Grades 6–8 · 3.1 mi
E
Midvale Elementary School
Elementary · Grades PK–2 · 3.2 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%

Owner Tools

Do you own this home?
Claim this home

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

307 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 78% of homes in Madison 53713
  • Smaller than 81% of homes in Dane County
  • Has a bigger lot than 92% of homes in Madison 53713
  • Older than 98% 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
$89K$1.2M

This home is worth more than 49% 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$279,520
CheaperTypical $280,187Pricier

Pricier than 49% of homes nearby

Price per ft²$231
CheaperTypical $186Pricier

Pricier than 78% of homes nearby

Living area1,212 ft²
SmallerTypical 1,557 ft²Bigger

Bigger than 30% of homes nearby

Lot size0.63 ac
SmallerTypical 0.25 acBigger

Bigger than 92% of homes nearby

Year built1918
OlderTypical 1973Newer

Newer than 2% of homes nearby

How 307 Koster St ranks against every home in each area.
MeasureThis homeCapitol ViewMadison 53713Dane County
Estimated valuepricier than$279,52049% of homes49% of homes18% of homes
Price per ft²pricier than$23144% of homes78% of homes48% of homes
Living areabigger than1,212 ft²36% of homes30% of homes19% of homes
Lot sizebigger than0.63 ac83% of homes92% of homes84% of homes
Year builtnewer than19186% of homes2% of homes7% of homes

About 307 Koster St

How much is 307 Koster St, Madison, WI worth?

The TopHap Estimate for 307 Koster St, Madison, WI is $279,520 as of Jul 14, 2026. The likely range is $261,381 to $297,659. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 307 Koster St, Madison, WI last sell?

307 Koster St, Madison, WI last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 307 Koster St, Madison, WI?

307 Koster St, Madison, WI has 2 bedrooms, 1 bathrooms, 1,212 square feet of living space and a 0.64-acre lot.

When was 307 Koster St, Madison, WI built?

307 Koster St, Madison, WI was built in 1918, making it 108 years old. The building has 2 stories.

What schools serve 307 Koster St, Madison, WI?

307 Koster St, Madison, WI is assigned to West High School (high), rated A; Cherokee Heights Middle School (middle), rated C-; 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 307 Koster St, Madison, WI compare to other homes in Madison 53713?

Among the 3,471 homes in Madison 53713, it is worth more than 49% of them ($279,520 against a typical $280,187), its price per square foot is higher than 78% of them ($231 against a typical $186), it is bigger than 30% of them (1,212 ft² against a typical 1,557 ft²), its lot is bigger than 92% of them (0.63 ac against a typical 0.25 ac) and it is newer than 2% of them (1918 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 307 Koster St, Madison, WI?

The 2025 property tax bill for 307 Koster St, Madison, WI was $5,034. The county assessed it at $289,400.

More homes on Koster St

Closest homes

More homes in Madison 53713

Assigned schools

Explore the area

See this home in context

Open 307 Koster St on TopHap’s interactive map to compare it against every sale nearby, overlay school zones and flood risk, and run a CMA.

Open in map
A flyover of TopHap's photorealistic 3D map, with recorded sale prices pinned to homes
Search any address, city, zip, or county…3D$1.9M$6.25MOpen in map