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Residential (General/Single)Residential
$487,853
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 81How 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 $264,900 on Sep 17, 2007

173 N LAPHAM ST

OCONOMOWOC, WI 53066
Building report
0
Baths
6.95 ac
Lot SizeThe size of the land the home sits on, from county records.

Valuation

$488K
$396K low$580K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$264,900 · Sep 17, 2007

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,248 (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.$429,700 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$33,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$396,700
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$396,800
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$436,100

Climate Risk

Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.13 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%
FEMA Flood ZoneFEMA's flood zone for this address. Zones starting with A or V are high risk, and lenders usually require flood insurance there.minimal

Scores 0–100; higher = greater projected risk.

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Residential (General/Single)
StyleThe architectural style of the home, such as ranch or colonial.Condo/Apartment
CountyWAUKESHA
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(1)

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
Oconomowoc High SchoolB-
High · Grades 9–12 · 0.7 mi
E
Greenland Elementary SchoolA
Elementary · Grades PK–4 · 0.8 mi
M
Nature Hill Intermediate SchoolA-
Middle · Grades 5–8 · 1.6 mi

District: Oconomowoc Area School District

Neighborhood · ZIP 53066These 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 100.27

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.93%
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.5.2%
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.38,081
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.340 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$110,263
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$139,520
Average tempThe average temperature here across a full year.47°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

173 N Lapham 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.

  • Has a bigger lot than 96% of homes in Waukesha County

What homes are worth in Oconomowoc 53066

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

This home
$248K$2.5M

This home is worth more than 36% of homes in Oconomowoc 53066.

How it measures up in Oconomowoc 53066

The dot is this home. The mark in the middle is the typical home in Oconomowoc 53066.

Estimated value$487,853
CheaperTypical $561,574Pricier

Pricier than 36% of homes nearby

Lot size6.95 ac
SmallerTypical 0.49 acBigger

Bigger than 94% of homes nearby

How 173 N Lapham St ranks against every home in each area.
MeasureThis homeOconomowoc 53066Waukesha County
Estimated valuepricier than$487,85336% of homes51% of homes
Lot sizebigger than6.95 ac94% of homes96% of homes

About 173 N Lapham St

How much is 173 N Lapham St, Oconomowoc, WI worth?

The TopHap Estimate for 173 N Lapham St, Oconomowoc, WI is $487,853 as of Sep 24, 2026. The likely range is $396,030 to $579,676. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 173 N Lapham St, Oconomowoc, WI last sell?

173 N Lapham St, Oconomowoc, WI last sold on Sep 17, 2007 for $264,900, according to the county's recorded deed.

What schools serve 173 N Lapham St, Oconomowoc, WI?

173 N Lapham St, Oconomowoc, WI is assigned to Oconomowoc High School (high), rated B-; Greenland Elementary School (elementary), rated A; Nature Hill Intermediate School (middle), rated A-. All sit in Oconomowoc Area School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 173 N Lapham St, Oconomowoc, WI compare to other homes in Oconomowoc 53066?

Among the 14,691 homes in Oconomowoc 53066, it is worth more than 36% of them ($487,853 against a typical $561,574) and its lot is bigger than 94% of them (6.95 ac against a typical 0.49 ac). Measured against all of Waukesha County, it is worth more than 51% 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 173 N Lapham St, Oconomowoc, WI?

The 2025 property tax bill for 173 N Lapham St, Oconomowoc, WI was $4,248. The county assessed it at $429,700.

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