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Single Family ResidenceResidential
$530,239$255 / 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 87How 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 $510,000 on Sep 10, 2024

509 ISLE ROYAL DR

MADISON, WI 53705
4
Beds
3 / 1
Baths
2,083 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.
0.31 ac
Lot SizeThe size of the land the home sits on, from county records.
1977
Year BuiltThe year the home was originally built, according to county records.
1
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

$530K
$460K low$601K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$510,000 · Sep 10, 2024

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$8,619 (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.$506,800 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$169,500
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$337,300
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$506,800
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$506,800

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.Bi-Level
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.2003
Lot (acres)The size of the land the home sits on, from county records.0.31
ConstructionThe main material the home's frame and walls are built from.Masonry/Concrete Masonry Units (Cmus)
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, Basement
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 · 1,099 ft²Patio · 1,099 ft²

Transaction History(5)

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
John Muir Elementary SchoolC-
Elementary · Grades EE–5 · 0.4 mi
M
Ezekiel Gillespie Middle SchoolD
Middle · Grades 6–8 · 0.6 mi
H
Vel Phillips Memorial High SchoolD
High · Grades 9–12 · 0.7 mi

District: Madison Metropolitan School District

Neighborhood · ZIP 53705These 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 100.21

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.95%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.32%
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.27,087
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,234 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$85,897
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$115,042
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

509 Isle Royal Dr 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 69% of homes in Parkwood Hills
  • Costs more per square foot than 87% of homes in Parkwood Hills
  • Smaller than 74% of homes in Parkwood Hills
  • Has a bigger lot than 74% of homes in Madison 53705
  • Newer than 90% of homes in Parkwood Hills

What homes are worth in Madison 53705

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

This home
$24K$1.8M

This home is worth more than 51% of homes in Madison 53705.

How it measures up in Madison 53705

The dot is this home. The mark in the middle is the typical home in Madison 53705.

Estimated value$530,239
CheaperTypical $526,303Pricier

Pricier than 51% of homes nearby

Price per ft²$255
CheaperTypical $295Pricier

Pricier than 33% of homes nearby

Living area2,083 ft²
SmallerTypical 1,866 ft²Bigger

Bigger than 61% of homes nearby

Lot size0.31 ac
SmallerTypical 0.24 acBigger

Bigger than 74% of homes nearby

Year built1977
OlderTypical 1958Newer

Newer than 86% of homes nearby

How 509 Isle Royal Dr ranks against every home in each area.
MeasureThis homeParkwood HillsMadison 53705Dane County
Estimated valuepricier than$530,23931% of homes51% of homes69% of homes
Price per ft²pricier than$25587% of homes33% of homes55% of homes
Living areabigger than2,083 ft²26% of homes61% of homes70% of homes
Lot sizebigger than0.31 ac54% of homes74% of homes64% of homes
Year builtnewer than197790% of homes86% of homes51% of homes

About 509 Isle Royal Dr

How much is 509 Isle Royal Dr, Madison, WI worth?

The TopHap Estimate for 509 Isle Royal Dr, Madison, WI is $530,239 as of Sep 24, 2026. The likely range is $459,950 to $600,528. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 509 Isle Royal Dr, Madison, WI last sell?

509 Isle Royal Dr, Madison, WI last sold on Sep 10, 2024 for $510,000, according to the county's recorded deed. TopHap holds 4 recorded sales for this parcel.

How big is 509 Isle Royal Dr, Madison, WI?

509 Isle Royal Dr, Madison, WI has 4 bedrooms, 3 bathrooms, 2,083 square feet of living space and a 0.31-acre lot.

When was 509 Isle Royal Dr, Madison, WI built?

509 Isle Royal Dr, Madison, WI was built in 1977, making it 49 years old. It is a bi-level home. The building has 1 story.

What schools serve 509 Isle Royal Dr, Madison, WI?

509 Isle Royal Dr, Madison, WI is assigned to John Muir Elementary School (elementary), rated C-; Ezekiel Gillespie Middle School (middle), rated D; 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 509 Isle Royal Dr, Madison, WI compare to other homes in Madison 53705?

Among the 7,461 homes in Madison 53705, it is worth more than 51% of them ($530,239 against a typical $526,303), its price per square foot is higher than 33% of them ($255 against a typical $295), it is bigger than 61% of them (2,083 ft² against a typical 1,866 ft²), its lot is bigger than 74% of them (0.31 ac against a typical 0.24 ac) and it is newer than 86% of them (1977 against a typical 1958). Measured against all of Dane County, it is worth more than 69% 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 509 Isle Royal Dr, Madison, WI?

The 2024 property tax bill for 509 Isle Royal Dr, Madison, WI was $8,619. The county assessed it at $506,800.

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