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Single Family ResidenceResidential
$491,866$254 / 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 92How 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 $226,000 on Mar 1, 2007

623 W OLIN AVE

MADISON, WI 53715
4
Beds
2
Baths
1,939 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.
0.18 ac
Lot SizeThe size of the land the home sits on, from county records.
1929
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
10
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

$492K
$452K low$531K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$226,000 · Mar 1, 2007

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$7,973 (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.$470,300 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$109,200
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$361,100
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$470,300
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$470,300

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.Cape Cod
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.1978
Lot (acres)The size of the land the home sits on, from county records.0.18
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
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.Patio · 74 ft²Porch · 125 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.

E
Franklin Elementary School
Elementary · Grades PK–2 · 0.3 mi
H
West High SchoolA
High · Grades 9–12 · 2.0 mi
M
Velma Hamilton Middle SchoolA-
Middle · Grades 6–8 · 3.4 mi

District: Madison Metropolitan School District

Neighborhood · ZIP 53715These 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.162
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 100.28

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.39%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.43%
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.11,368
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.7,452 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$55,213
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$69,900
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

623 W Olin Ave 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 82% of homes in Bay Creek
  • Bigger than 77% of homes in Bay Creek
  • Has a bigger lot than 86% of homes in Madison 53715
  • Older than 88% of homes in Dane County

What homes are worth in Madison 53715

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

This home
$189K$864K

This home is worth more than 78% of homes in Madison 53715.

How it measures up in Madison 53715

The dot is this home. The mark in the middle is the typical home in Madison 53715.

Estimated value$491,866
CheaperTypical $376,447Pricier

Pricier than 78% of homes nearby

Price per ft²$254
CheaperTypical $272Pricier

Pricier than 41% of homes nearby

Living area1,939 ft²
SmallerTypical 1,546 ft²Bigger

Bigger than 74% of homes nearby

Lot size0.18 ac
SmallerTypical 0.13 acBigger

Bigger than 86% of homes nearby

Year built1929
OlderTypical 1927Newer

Newer than 59% of homes nearby

How 623 W Olin Ave ranks against every home in each area.
MeasureThis homeBay CreekMadison 53715Dane County
Estimated valuepricier than$491,86682% of homes78% of homes66% of homes
Price per ft²pricier than$25447% of homes41% of homes62% of homes
Living areabigger than1,939 ft²77% of homes74% of homes64% of homes
Lot sizebigger than0.18 ac81% of homes86% of homes25% of homes
Year builtnewer than192944% of homes59% of homes12% of homes

About 623 W Olin Ave

How much is 623 W Olin Ave, Madison, WI worth?

The TopHap Estimate for 623 W Olin Ave, Madison, WI is $491,866 as of Aug 30, 2026. The likely range is $452,275 to $531,457. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 623 W Olin Ave, Madison, WI last sell?

623 W Olin Ave, Madison, WI last sold on Mar 1, 2007 for $226,000, according to the county's recorded deed.

How big is 623 W Olin Ave, Madison, WI?

623 W Olin Ave, Madison, WI has 4 bedrooms, 2 bathrooms, 1,939 square feet of living space and a 0.18-acre lot.

When was 623 W Olin Ave, Madison, WI built?

623 W Olin Ave, Madison, WI was built in 1929, making it 97 years old. It is a cape cod home. The building has 2 stories.

What schools serve 623 W Olin Ave, Madison, WI?

623 W Olin Ave, Madison, WI is assigned to Franklin Elementary School (elementary); West High School (high), rated A; Velma Hamilton Middle School (middle), rated A-. All sit in Madison Metropolitan School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 623 W Olin Ave, Madison, WI compare to other homes in Madison 53715?

Among the 1,686 homes in Madison 53715, it is worth more than 78% of them ($491,866 against a typical $376,447), its price per square foot is higher than 41% of them ($254 against a typical $272), it is bigger than 74% of them (1,939 ft² against a typical 1,546 ft²), its lot is bigger than 86% of them (0.18 ac against a typical 0.13 ac) and it is newer than 59% of them (1929 against a typical 1927). Measured against all of Dane County, it is worth more than 66% 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 623 W Olin Ave, Madison, WI?

The 2024 property tax bill for 623 W Olin Ave, Madison, WI was $7,973. The county assessed it at $470,300.

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