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Single Family ResidenceResidential
$1,040,330$392 / 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 96How 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 $805,000 on Mar 16, 2021

138 N PROSPECT AVE

MADISON, WI 53726
4
Beds
3 / 1
Baths
2,651 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.
0.2 ac
Lot SizeThe size of the land the home sits on, from county records.
1919
Year BuiltThe year the home was originally built, according to county records.
3
StoriesHow many floors the home has above ground.
13
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

$1M
$997K low$1.1M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$805,000 · Mar 16, 2021

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$16,044 (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.$926,200 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$314,400
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$611,800
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$926,200
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$926,200

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.Colonial
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.1991
Lot (acres)The size of the land the home sits on, from county records.0.20
ConstructionThe main material the home's frame and walls are built from.Wood (Unspecified)
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
FireplaceWhether the home has a fireplace, and what kind.Yes
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Attached
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 · 378 ft²Patio · 378 ft²Porch · 331 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.

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 · 0.4 mi
E
Franklin Elementary School
Elementary · Grades PK–2 · 1.9 mi
M
Velma Hamilton Middle SchoolA
Middle · Grades 6–8 · 2.0 mi

District: Madison Metropolitan School District

Neighborhood · ZIP 53726These 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.127
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 100.25

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.37%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.28%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.7%
PopulationHow many people live in this area.5,568
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.12,273 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$64,161
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$101,577
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

138 N Prospect Ave 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 97% of homes in Dane County
  • Costs more per square foot than 91% of homes in Dane County
  • Bigger than 87% of homes in Dane County
  • Has a bigger lot than 91% of homes in Regent
  • Older than 93% of homes in Dane County

What homes are worth in Madison 53726

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

This home
$309K$1.5M

This home is worth more than 80% of homes in Madison 53726.

How it measures up in Madison 53726

The dot is this home. The mark in the middle is the typical home in Madison 53726.

Estimated value$1,040,330
CheaperTypical $818,687Pricier

Pricier than 80% of homes nearby

Price per ft²$392
CheaperTypical $389Pricier

Pricier than 53% of homes nearby

Living area2,651 ft²
SmallerTypical 2,104 ft²Bigger

Bigger than 72% of homes nearby

Lot size0.2 ac
SmallerTypical 0.14 acBigger

Bigger than 89% of homes nearby

Year built1919
OlderTypical 1924Newer

Newer than 27% of homes nearby

How 138 N Prospect Ave ranks against every home in each area.
MeasureThis homeRegentMadison 53726Dane County
Estimated valuepricier than$1,040,33085% of homes80% of homes97% of homes
Price per ft²pricier than$39249% of homes53% of homes91% of homes
Living areabigger than2,651 ft²78% of homes72% of homes87% of homes
Lot sizebigger than0.2 ac91% of homes89% of homes31% of homes
Year builtnewer than191921% of homes27% of homes7% of homes

About 138 N Prospect Ave

How much is 138 N Prospect Ave, Madison, WI worth?

The TopHap Estimate for 138 N Prospect Ave, Madison, WI is $1,040,330 as of Sep 24, 2026. The likely range is $996,981 to $1,083,679. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 138 N Prospect Ave, Madison, WI last sell?

138 N Prospect Ave, Madison, WI last sold on Mar 16, 2021 for $805,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 138 N Prospect Ave, Madison, WI?

138 N Prospect Ave, Madison, WI has 4 bedrooms, 3 bathrooms, 2,651 square feet of living space and a 0.20-acre lot.

When was 138 N Prospect Ave, Madison, WI built?

138 N Prospect Ave, Madison, WI was built in 1919, making it 107 years old. It is a colonial home. The building has 3 stories.

What schools serve 138 N Prospect Ave, Madison, WI?

138 N Prospect Ave, Madison, WI is assigned to West High School (high), rated D+; Franklin Elementary School (elementary); Velma Hamilton Middle School (middle), rated A. All sit in Madison Metropolitan School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 138 N Prospect Ave, Madison, WI compare to other homes in Madison 53726?

Among the 1,056 homes in Madison 53726, it is worth more than 80% of them ($1,040,330 against a typical $818,687), its price per square foot is higher than 53% of them ($392 against a typical $389), it is bigger than 72% of them (2,651 ft² against a typical 2,104 ft²), its lot is bigger than 89% of them (0.2 ac against a typical 0.14 ac) and it is newer than 27% of them (1919 against a typical 1924). Measured against all of Dane County, it is worth more than 97% 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 138 N Prospect Ave, Madison, WI?

The 2024 property tax bill for 138 N Prospect Ave, Madison, WI was $16,044. The county assessed it at $926,200.

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