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Residential (General/Single)Residential
$399,346$174 / 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 Aug 30, 2026
Last sold for $290,000 on Mar 4, 2021

339 PROSPECT AVE

HARTLAND, WI 53029
4
Beds
2
Baths
2,296 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.
0.44 ac
Lot SizeThe size of the land the home sits on, from county records.
1895
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$399K
$381K low$417K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$290,000 · Mar 4, 2021

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,138 (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.$342,900 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$84,800
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$258,100
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$417,800

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Residential (General/Single)
CountyWAUKESHA
Lot (acres)The size of the land the home sits on, from county records.0.44
HeatingThe type of heating system in the home.Forced Air With Air Conditioning
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

Transaction History(8)

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(1)

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

E
North Elementary School
Elementary · Grades PK–2 · 0.6 mi
H
Arrowhead High SchoolA
High · Grades 9–12 · 1.1 mi
M
North Shore Middle SchoolA+
Middle · Grades 6–8 · 1.5 mi

District: Hartland-Lakeside Joint No. 3 School District

Neighborhood · ZIP 53029These 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.85
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 100.25

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.33%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.4.6%
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.22,797
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.522 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$119,500
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$150,649
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

339 Prospect 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 less than 81% of homes in Hartland 53029
  • Costs less per square foot than 96% of homes in Hartland 53029
  • Bigger than 72% of homes in Waukesha County
  • Has a smaller lot than 74% of homes in Hartland 53029
  • Among the oldest homes in Waukesha County

What homes are worth in Hartland 53029

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

This home
$224K$3M

This home is worth more than 19% of homes in Hartland 53029.

How it measures up in Hartland 53029

The dot is this home. The mark in the middle is the typical home in Hartland 53029.

Estimated value$399,346
CheaperTypical $639,117Pricier

Pricier than 19% of homes nearby

Price per ft²$174
CheaperTypical $253Pricier

Pricier than 4% of homes nearby

Living area2,296 ft²
SmallerTypical 1,944 ft²Bigger

Bigger than 61% of homes nearby

Lot size0.44 ac
SmallerTypical 0.91 acBigger

Bigger than 26% of homes nearby

Year built1895
OlderTypical 1984Newer

Newer than 2% of homes nearby

How 339 Prospect Ave ranks against every home in each area.
MeasureThis homeHartland 53029Waukesha County
Estimated valuepricier than$399,34619% of homes32% of homes
Price per ft²pricier than$1744% of homes8% of homes
Living areabigger than2,296 ft²61% of homes72% of homes
Lot sizebigger than0.44 ac26% of homes40% of homes
Year builtnewer than18952% of homesalmost no homes

About 339 Prospect Ave

How much is 339 Prospect Ave, Hartland, WI worth?

The TopHap Estimate for 339 Prospect Ave, Hartland, WI is $399,346 as of Aug 30, 2026. The likely range is $381,388 to $417,304. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 339 Prospect Ave, Hartland, WI last sell?

339 Prospect Ave, Hartland, WI last sold on Mar 4, 2021 for $290,000, according to the county's recorded deed. TopHap holds 6 recorded sales for this parcel.

How big is 339 Prospect Ave, Hartland, WI?

339 Prospect Ave, Hartland, WI has 4 bedrooms, 2 bathrooms, 2,296 square feet of living space and a 0.44-acre lot.

When was 339 Prospect Ave, Hartland, WI built?

339 Prospect Ave, Hartland, WI was built in 1895, making it 131 years old. The building has 2 stories.

What schools serve 339 Prospect Ave, Hartland, WI?

339 Prospect Ave, Hartland, WI is assigned to North Elementary School (elementary); Arrowhead High School (high), rated A; North Shore Middle School (middle), rated A+. All sit in Hartland-Lakeside Joint No. 3 School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 339 Prospect Ave, Hartland, WI compare to other homes in Hartland 53029?

Among the 8,073 homes in Hartland 53029, it is worth more than 19% of them ($399,346 against a typical $639,117), its price per square foot is higher than 4% of them ($174 against a typical $253), it is bigger than 61% of them (2,296 ft² against a typical 1,944 ft²), its lot is bigger than 26% of them (0.44 ac against a typical 0.91 ac) and it is newer than 2% of them (1895 against a typical 1984). Measured against all of Waukesha County, it is worth more than 32% 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 339 Prospect Ave, Hartland, WI?

The 2025 property tax bill for 339 Prospect Ave, Hartland, WI was $4,138. The county assessed it at $342,900.

More homes on Prospect Ave

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Assigned schools

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