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Single Family ResidenceResidential
$233,026$474 / 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 90How 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 $110,000 on Oct 17, 2014

2831 UNION ST

MADISON, WI 53704
1
Beds
1
Baths
492 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.
0.11 ac
Lot SizeThe size of the land the home sits on, from county records.
1925
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
4
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
1
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$233K
$210K low$256K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$110,000 · Oct 17, 2014

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,645 (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.$203,900 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$63,300
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$140,600
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$203,900
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$203,900

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.Cottage
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.1975
Lot (acres)The size of the land the home sits on, from county records.0.11
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.Block (Unspecified)
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.None
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
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Porch · 60 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.

E
Lowell Elementary SchoolC+
Elementary · Grades PK–5 · 0.5 mi
H
East High SchoolD-
High · Grades 9–12 · 0.7 mi
M
O'Keeffe Middle SchoolB-
Middle · Grades 6–8 · 1.3 mi

District: Madison Metropolitan School District

Neighborhood · ZIP 53704These 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.124
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.34%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.12%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.8%
PopulationHow many people live in this area.49,468
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,132 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$76,243
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$93,732
Average tempThe average temperature here across a full year.46°F
Annual precipHow much rain and melted snow falls here in a typical year.34 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

2831 Union 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 97% of homes in Schenk / Atwood / Starkweather / Yahara
  • Costs more per square foot than 97% of homes in Dane County
  • Among the smallest homes in Schenk / Atwood / Starkweather / Yahara
  • Has a smaller lot than 90% of homes in Dane County
  • Older than 90% of homes in Dane County

What homes are worth in Madison 53704

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

This home
$181K$1.2M

This home is worth more than 9% of homes in Madison 53704.

How it measures up in Madison 53704

The dot is this home. The mark in the middle is the typical home in Madison 53704.

Estimated value$233,026
CheaperTypical $348,527Pricier

Pricier than 9% of homes nearby

Price per ft²$474
CheaperTypical $236Pricier

Pricier than 96% of homes nearby

Living area492 ft²
SmallerTypical 1,500 ft²Bigger

Smaller than almost all homes nearby

Lot size0.11 ac
SmallerTypical 0.19 acBigger

Bigger than 23% of homes nearby

Year built1925
OlderTypical 1960Newer

Newer than 15% of homes nearby

How 2831 Union St ranks against every home in each area.
MeasureThis homeSchenk / Atwood / Starkweather / YaharaMadison 53704Dane County
Estimated valuepricier than$233,0263% of homes9% of homes7% of homes
Price per ft²pricier than$47493% of homes96% of homes97% of homes
Living areabigger than492 ft²almost no homesalmost no homesalmost no homes
Lot sizebigger than0.11 ac65% of homes23% of homes10% of homes
Year builtnewer than192554% of homes15% of homes10% of homes

About 2831 Union St

How much is 2831 Union St, Madison, WI worth?

The TopHap Estimate for 2831 Union St, Madison, WI is $233,026 as of Sep 24, 2026. The likely range is $210,288 to $255,764. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 2831 Union St, Madison, WI last sell?

2831 Union St, Madison, WI last sold on Oct 17, 2014 for $110,000, according to the county's recorded deed. TopHap holds 4 recorded sales for this parcel.

How big is 2831 Union St, Madison, WI?

2831 Union St, Madison, WI has 1 bedrooms, 1 bathrooms, 492 square feet of living space and a 0.11-acre lot.

When was 2831 Union St, Madison, WI built?

2831 Union St, Madison, WI was built in 1925, making it 101 years old. It is a cottage home. The building has 1 story.

What schools serve 2831 Union St, Madison, WI?

2831 Union St, Madison, WI is assigned to Lowell Elementary School (elementary), rated C+; East High School (high), rated D-; O'Keeffe Middle School (middle), rated B-. All sit in Madison Metropolitan School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 2831 Union St, Madison, WI compare to other homes in Madison 53704?

Among the 15,794 homes in Madison 53704, it is worth more than 9% of them ($233,026 against a typical $348,527), its price per square foot is higher than 96% of them ($474 against a typical $236), it is bigger than almost none of them (492 ft² against a typical 1,500 ft²), its lot is bigger than 23% of them (0.11 ac against a typical 0.19 ac) and it is newer than 15% of them (1925 against a typical 1960). Measured against all of Dane County, it is worth more than 7% 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 2831 Union St, Madison, WI?

The 2024 property tax bill for 2831 Union St, Madison, WI was $3,645. The county assessed it at $203,900.

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