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CondominiumResidential
$432,893$187 / 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 Sep 24, 2026
Last sold for $340,000 on Nov 4, 2021

817 N GAMMON RD

MADISON, WI 53717
3
Beds
4 / 2
Baths
2,318 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.
1990
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
11
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$433K
$405K low$461K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$340,000 · Nov 4, 2021

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$7,398 (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.$422,600 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$28,400
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$394,200
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$422,600
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$422,600

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.3 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.Condominium
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.2004
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.Patio · 130 ft²

Transaction History(7)

Sales and refinances filed with the county for this home. Not every transfer is a normal sale, so check the type before comparing prices.

Foreclosure Filings(2)

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

M
Ezekiel Gillespie Middle SchoolD
Middle · Grades 6–8 · 0.9 mi
E
Crestwood Elementary SchoolB+
Elementary · Grades PK–5 · 1.1 mi
H
Vel Phillips Memorial High SchoolD
High · Grades 9–12 · 1.1 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%

Owner Tools

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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

817 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.

  • Costs less per square foot than 89% of homes in Dane County
  • Bigger than 78% of homes in Dane County
  • Newer than 76% of homes in Woodland Hills

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
$189K$1.1M

This home is worth more than 41% 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$432,893
CheaperTypical $478,723Pricier

Pricier than 41% of homes nearby

Price per ft²$187
CheaperTypical $218Pricier

Pricier than 17% of homes nearby

Living area2,318 ft²
SmallerTypical 2,263 ft²Bigger

Bigger than 52% of homes nearby

Year built1990
OlderTypical 1987Newer

Newer than 66% of homes nearby

How 817 N Gammon Rd ranks against every home in each area.
MeasureThis homeWoodland HillsMadison 53717Dane County
Estimated valuepricier than$432,89347% of homes41% of homes49% of homes
Price per ft²pricier than$18715% of homes17% of homes11% of homes
Living areabigger than2,318 ft²57% of homes52% of homes78% of homes
Year builtnewer than199076% of homes66% of homes63% of homes

About 817 N Gammon Rd

How much is 817 N Gammon Rd, Madison, WI worth?

The TopHap Estimate for 817 N Gammon Rd, Madison, WI is $432,893 as of Sep 24, 2026. The likely range is $404,795 to $460,991. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 817 N Gammon Rd, Madison, WI last sell?

817 N Gammon Rd, Madison, WI last sold on Nov 4, 2021 for $340,000, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 817 N Gammon Rd, Madison, WI?

817 N Gammon Rd, Madison, WI has 3 bedrooms, 4 bathrooms and 2,318 square feet of living space.

When was 817 N Gammon Rd, Madison, WI built?

817 N Gammon Rd, Madison, WI was built in 1990, making it 36 years old. The building has 2 stories.

What schools serve 817 N Gammon Rd, Madison, WI?

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

How does 817 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 41% of them ($432,893 against a typical $478,723), its price per square foot is higher than 17% of them ($187 against a typical $218), it is bigger than 52% of them (2,318 ft² against a typical 2,263 ft²) and it is newer than 66% of them (1990 against a typical 1987). Measured against all of Dane County, it is worth more than 49% 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 817 N Gammon Rd, Madison, WI?

The 2024 property tax bill for 817 N Gammon Rd, Madison, WI was $7,398. The county assessed it at $422,600.

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