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Single Family ResidenceResidential
$424,001$206 / 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 96How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Oct 21, 2026
Last sold for $259,900 on Nov 21, 2019

423 PROSPECT CT

WAUKESHA, WI 53186
3
Beds
1
Baths
2,063 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.
0.34 ac
Lot SizeThe size of the land the home sits on, from county records.
1915
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
7
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

$424K
$409K low$439K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$259,900 · Nov 21, 2019

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$5,159 (2025)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$385,900 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$87,100
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$298,800
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$351,400
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$396,080

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.Bungalow
CountyWAUKESHA
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.1989
Lot (acres)The size of the land the home sits on, from county records.0.34
FoundationWhat the home is built on, such as a concrete slab, a crawl space, or a basement.Raised (Unspecified)
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Forced Air With Air Conditioning
CoolingThe type of cooling or air conditioning in the home.Central
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.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 · 84 ft²Patio · 84 ft²Porch · 200 ft²

Transaction History(4)

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.

M
Butler Middle SchoolB-
Middle · Grades 6–8 · 0.7 mi
E
Hawthorne Elementary SchoolD-
Elementary · Grades PK–5 · 0.7 mi
H
North High SchoolD
High · Grades 9–12 · 1.4 mi

District: Waukesha School District

Neighborhood · ZIP 53186These 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.116
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.76
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.23

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.96%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.30%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.8.5%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.9%
PopulationHow many people live in this area.32,219
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,550 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$75,204
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$95,939
Average tempThe average temperature here across a full year.47°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

423 Prospect Ct 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 78% of homes in Waukesha 53186
  • Costs less per square foot than 79% of homes in Waukesha County
  • Bigger than 80% of homes in Waukesha 53186
  • Has a bigger lot than 71% of homes in Waukesha 53186
  • Older than 97% of homes in Waukesha County

What homes are worth in Waukesha 53186

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

This home
$164K$606K

This home is worth more than 78% of homes in Waukesha 53186.

How it measures up in Waukesha 53186

The dot is this home. The mark in the middle is the typical home in Waukesha 53186.

Estimated value$424,001
CheaperTypical $329,951Pricier

Pricier than 78% of homes nearby

Price per ft²$206
CheaperTypical $200Pricier

Pricier than 55% of homes nearby

Living area2,063 ft²
SmallerTypical 1,519 ft²Bigger

Bigger than 80% of homes nearby

Lot size0.34 ac
SmallerTypical 0.26 acBigger

Bigger than 71% of homes nearby

Year built1915
OlderTypical 1959Newer

Newer than 16% of homes nearby

How 423 Prospect Ct ranks against every home in each area.
MeasureThis homeWaukesha 53186Waukesha County
Estimated valuepricier than$424,00178% of homes38% of homes
Price per ft²pricier than$20655% of homes21% of homes
Living areabigger than2,063 ft²80% of homes62% of homes
Lot sizebigger than0.34 ac71% of homes29% of homes
Year builtnewer than191516% of homes3% of homes

About 423 Prospect Ct

How much is 423 Prospect Ct, Waukesha, WI worth?

The TopHap Estimate for 423 Prospect Ct, Waukesha, WI is $424,001 as of Oct 21, 2026. The likely range is $408,904 to $439,098. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 423 Prospect Ct, Waukesha, WI last sell?

423 Prospect Ct, Waukesha, WI last sold on Nov 21, 2019 for $259,900, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 423 Prospect Ct, Waukesha, WI?

423 Prospect Ct, Waukesha, WI has 3 bedrooms, 1 bathrooms, 2,063 square feet of living space and a 0.34-acre lot.

When was 423 Prospect Ct, Waukesha, WI built?

423 Prospect Ct, Waukesha, WI was built in 1915, making it 111 years old. It is a bungalow home. The building has 1 story.

What schools serve 423 Prospect Ct, Waukesha, WI?

423 Prospect Ct, Waukesha, WI is assigned to Butler Middle School (middle), rated B-; Hawthorne Elementary School (elementary), rated D-; North High School (high), rated D. All sit in Waukesha School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 423 Prospect Ct, Waukesha, WI compare to other homes in Waukesha 53186?

Among the 9,334 homes in Waukesha 53186, it is worth more than 78% of them ($424,001 against a typical $329,951), its price per square foot is higher than 55% of them ($206 against a typical $200), it is bigger than 80% of them (2,063 ft² against a typical 1,519 ft²), its lot is bigger than 71% of them (0.34 ac against a typical 0.26 ac) and it is newer than 16% of them (1915 against a typical 1959). Measured against all of Waukesha County, it is worth more than 38% 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 423 Prospect Ct, Waukesha, WI?

The 2025 property tax bill for 423 Prospect Ct, Waukesha, WI was $5,159. The county assessed it at $385,900.

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