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Single Family ResidenceResidential
$652,402$201 / 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 91How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Aug 30, 2026
Last sold for $360,000 on May 1, 2003

321 N GAMMON RD

MADISON, WI 53717
4
Beds
3
Baths
3,250 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.
1.3 ac
Lot SizeThe size of the land the home sits on, from county records.
1955
Year BuiltThe year the home was originally built, according to county records.
2
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

$652K
$595K low$709K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$360,000 · May 1, 2003

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$12,096 (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.$698,600 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$325,800
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$372,800
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$698,600
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$698,600

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.Modern
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.1.30
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, Detached
PoolWhether the property has a pool, and what kind, such as in-ground.Yes
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Deck · 854 ft²Shed · 144 ft²Patio · 110 ft²Porch · 96 ft²

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

E
John Muir Elementary SchoolB+
Elementary · Grades EE–5 · 0.4 mi
M
Ezekiel Gillespie Middle SchoolC
Middle · Grades 6–8 · 0.4 mi
H
Vel Phillips Memorial High SchoolA
High · Grades 9–12 · 0.6 mi

District: Madison Metropolitan School District

Neighborhood · ZIP 53717These 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.114
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.77
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.27

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.97%
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.4.9%
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.13,096
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.3,416 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$95,805
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$118,808
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

321 N Gammon Rd 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 85% of homes in Madison 53717
  • Costs more per square foot than 70% of homes in Madison 53717
  • Bigger than 94% of homes in Dane County
  • Has a bigger lot than 94% of homes in Madison 53717
  • Among the oldest homes in Madison 53717

What homes are worth in Madison 53717

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

This home
$131K$937K

This home is worth more than 85% of homes in Madison 53717.

How it measures up in Madison 53717

The dot is this home. The mark in the middle is the typical home in Madison 53717.

Estimated value$652,402
CheaperTypical $419,849Pricier

Pricier than 85% of homes nearby

Price per ft²$201
CheaperTypical $182Pricier

Pricier than 70% of homes nearby

Living area3,250 ft²
SmallerTypical 2,251 ft²Bigger

Bigger than 81% of homes nearby

Lot size1.3 ac
SmallerTypical 0.27 acBigger

Bigger than 94% of homes nearby

Year built1955
OlderTypical 1987Newer

Older than almost all homes nearby

How 321 N Gammon Rd ranks against every home in each area.
MeasureThis homeMadison 53717Dane County
Estimated valuepricier than$652,40285% of homes85% of homes
Price per ft²pricier than$20170% of homes33% of homes
Living areabigger than3,250 ft²81% of homes94% of homes
Lot sizebigger than1.3 ac94% of homes91% of homes
Year builtnewer than1955almost no homes27% of homes

About 321 N Gammon Rd

How much is 321 N Gammon Rd, Madison, WI worth?

The TopHap Estimate for 321 N Gammon Rd, Madison, WI is $652,402 as of Aug 30, 2026. The likely range is $595,394 to $709,410. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 321 N Gammon Rd, Madison, WI last sell?

321 N Gammon Rd, Madison, WI last sold on May 1, 2003 for $360,000, according to the county's recorded deed.

How big is 321 N Gammon Rd, Madison, WI?

321 N Gammon Rd, Madison, WI has 4 bedrooms, 3 bathrooms, 3,250 square feet of living space and a 1.30-acre lot.

When was 321 N Gammon Rd, Madison, WI built?

321 N Gammon Rd, Madison, WI was built in 1955, making it 71 years old. It is a modern home. The building has 2 stories.

What schools serve 321 N Gammon Rd, Madison, WI?

321 N Gammon Rd, Madison, WI is assigned to John Muir Elementary School (elementary), rated B+; Ezekiel Gillespie Middle School (middle), rated C; Vel Phillips Memorial High School (high), rated A. All sit in Madison Metropolitan School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 321 N Gammon Rd, Madison, WI compare to other homes in Madison 53717?

Among the 3,538 homes in Madison 53717, it is worth more than 85% of them ($652,402 against a typical $419,849), its price per square foot is higher than 70% of them ($201 against a typical $182), it is bigger than 81% of them (3,250 ft² against a typical 2,251 ft²), its lot is bigger than 94% of them (1.3 ac against a typical 0.27 ac) and it is newer than almost none of them (1955 against a typical 1987). Measured against all of Dane County, it is worth more than 85% 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 321 N Gammon Rd, Madison, WI?

The 2024 property tax bill for 321 N Gammon Rd, Madison, WI was $12,096. The county assessed it at $698,600.

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