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Single Family ResidenceResidential
$830,333$518 / 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

644 KNICKERBOCKER ST

MADISON, WI 53711
3
Beds
2
Baths
1,604 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.
1916
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
9
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

$830K
$778K low$883K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$12,616 (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.$713,600 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$171,500
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$542,100
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$713,600
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$713,600

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.Traditional/Old
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.1979
Lot (acres)The size of the land the home sits on, from county records.0.11
FoundationWhat the home is built on, such as a concrete slab, a crawl space, or a basement.Stone (Unspecified)
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.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 · 285 ft²Patio · 285 ft²Porch · 192 ft²

Transaction History(2)

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 SchoolA
High · Grades 9–12 · 0.8 mi
E
Thoreau Elementary SchoolC+
Elementary · Grades PK–5 · 1.0 mi
M
Cherokee Heights Middle SchoolC-
Middle · Grades 6–8 · 1.5 mi

District: Madison Metropolitan School District

Neighborhood · ZIP 53711These 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.75
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.79
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.26

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.9.9%
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.54,881
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,895 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$100,829
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$129,254
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

644 Knickerbocker 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 more than 93% of homes in Dane County
  • Among the highest price per square foot in Madison 53711
  • Smaller than 68% of homes in Madison 53711
  • Has a smaller lot than 90% of homes in Dane County
  • Older than 96% of homes in Madison 53711

What homes are worth in Madison 53711

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

This home
$235K$1.1M

This home is worth more than 92% of homes in Madison 53711.

How it measures up in Madison 53711

The dot is this home. The mark in the middle is the typical home in Madison 53711.

Estimated value$830,333
CheaperTypical $485,602Pricier

Pricier than 92% of homes nearby

Price per ft²$518
CheaperTypical $270Pricier

Pricier than almost all homes nearby

Living area1,604 ft²
SmallerTypical 1,851 ft²Bigger

Bigger than 32% of homes nearby

Lot size0.11 ac
SmallerTypical 0.23 acBigger

Bigger than 13% of homes nearby

Year built1916
OlderTypical 1958Newer

Newer than 4% of homes nearby

How 644 Knickerbocker St ranks against every home in each area.
MeasureThis homeDudgeon-MonroeMadison 53711Dane County
Estimated valuepricier than$830,33378% of homes92% of homes93% of homes
Price per ft²pricier than$51893% of homesalmost all homes98% of homes
Living areabigger than1,604 ft²45% of homes32% of homes44% of homes
Lot sizebigger than0.11 ac43% of homes13% of homes10% of homes
Year builtnewer than191614% of homes4% of homes6% of homes

About 644 Knickerbocker St

How much is 644 Knickerbocker St, Madison, WI worth?

The TopHap Estimate for 644 Knickerbocker St, Madison, WI is $830,333 as of Sep 24, 2026. The likely range is $777,633 to $883,034. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 644 Knickerbocker St, Madison, WI last sell?

644 Knickerbocker St, Madison, WI last sold on Dec 1, 2021, according to the county's recorded deed.

How big is 644 Knickerbocker St, Madison, WI?

644 Knickerbocker St, Madison, WI has 3 bedrooms, 2 bathrooms, 1,604 square feet of living space and a 0.11-acre lot.

When was 644 Knickerbocker St, Madison, WI built?

644 Knickerbocker St, Madison, WI was built in 1916, making it 110 years old. It is a traditional/old home. The building has 2 stories.

What schools serve 644 Knickerbocker St, Madison, WI?

644 Knickerbocker St, Madison, WI is assigned to West High School (high), rated A; Thoreau Elementary School (elementary), rated C+; Cherokee Heights Middle School (middle), rated C-. All sit in Madison Metropolitan School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 644 Knickerbocker St, Madison, WI compare to other homes in Madison 53711?

Among the 16,895 homes in Madison 53711, it is worth more than 92% of them ($830,333 against a typical $485,602), its price per square foot is higher than almost all of them ($518 against a typical $270), it is bigger than 32% of them (1,604 ft² against a typical 1,851 ft²), its lot is bigger than 13% of them (0.11 ac against a typical 0.23 ac) and it is newer than 4% of them (1916 against a typical 1958). Measured against all of Dane County, it is worth more than 93% 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 644 Knickerbocker St, Madison, WI?

The 2024 property tax bill for 644 Knickerbocker St, Madison, WI was $12,616. The county assessed it at $713,600.

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