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Single Family ResidenceResidential
$227,022$193 / 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 99How 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 $154,800 on Dec 23, 2021

121 FOURTH ST

WAUKESHA, WI 53188
3
Beds
1
Baths
1,176 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.
0.12 ac
Lot SizeThe size of the land the home sits on, from county records.
1912
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
6
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

$227K
$224K low$230K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$154,800 · Dec 23, 2021

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,821 (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.$276,100 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$46,400
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$229,700
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$263,700
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$283,383

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.Bi-Level
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.0.12
FoundationWhat the home is built on, such as a concrete slab, a crawl space, or a basement.No Foundation
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
ViewThe type of view from the property, or another feature of the site that affects value.Traffic
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Patio · 240 ft²Porch · 151 ft²

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(2)

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

M
Butler Middle SchoolC
Middle · Grades 6–8 · 0.5 mi
E
Lowell Elementary SchoolB
Elementary · Grades PK–5 · 1.0 mi
H
North High SchoolB
High · Grades 9–12 · 1.3 mi

District: Waukesha School District

Neighborhood · ZIP 53188These 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.88
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.75
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.24

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.31%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.9.2%
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.37,559
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,406 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$91,080
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$104,714
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

121 Fourth 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 less than 97% of homes in Waukesha 53188
  • Costs less per square foot than 85% of homes in Waukesha County
  • Smaller than 88% of homes in Waukesha County
  • Among the smallest lots in Waukesha 53188
  • Older than 97% of homes in Waukesha 53188

What homes are worth in Waukesha 53188

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

This home
$210K$926K

This home is worth more than 3% of homes in Waukesha 53188.

How it measures up in Waukesha 53188

The dot is this home. The mark in the middle is the typical home in Waukesha 53188.

Estimated value$227,022
CheaperTypical $415,820Pricier

Pricier than 3% of homes nearby

Price per ft²$193
CheaperTypical $238Pricier

Pricier than 20% of homes nearby

Living area1,176 ft²
SmallerTypical 1,696 ft²Bigger

Bigger than 22% of homes nearby

Lot size0.12 ac
SmallerTypical 0.3 acBigger

Smaller than almost all homes nearby

Year built1912
OlderTypical 1978Newer

Newer than 3% of homes nearby

How 121 Fourth St ranks against every home in each area.
MeasureThis homeWaukesha 53188Waukesha County
Estimated valuepricier than$227,0223% of homes3% of homes
Price per ft²pricier than$19320% of homes15% of homes
Living areabigger than1,176 ft²22% of homes12% of homes
Lot sizebigger than0.12 acalmost no homes2% of homes
Year builtnewer than19123% of homes3% of homes

About 121 Fourth St

How much is 121 Fourth St, Waukesha, WI worth?

The TopHap Estimate for 121 Fourth St, Waukesha, WI is $227,022 as of Aug 30, 2026. The likely range is $224,269 to $229,775. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 121 Fourth St, Waukesha, WI last sell?

121 Fourth St, Waukesha, WI last sold on Dec 23, 2021 for $154,800, according to the county's recorded deed. TopHap holds 5 recorded sales for this parcel.

How big is 121 Fourth St, Waukesha, WI?

121 Fourth St, Waukesha, WI has 3 bedrooms, 1 bathrooms, 1,176 square feet of living space and a 0.12-acre lot.

When was 121 Fourth St, Waukesha, WI built?

121 Fourth St, Waukesha, WI was built in 1912, making it 114 years old. It is a bi-level home. The building has 2 stories.

What schools serve 121 Fourth St, Waukesha, WI?

121 Fourth St, Waukesha, WI is assigned to Butler Middle School (middle), rated C; Lowell Elementary School (elementary), rated B; North High School (high), rated B. All sit in Waukesha School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 121 Fourth St, Waukesha, WI compare to other homes in Waukesha 53188?

Among the 10,638 homes in Waukesha 53188, it is worth more than 3% of them ($227,022 against a typical $415,820), its price per square foot is higher than 20% of them ($193 against a typical $238), it is bigger than 22% of them (1,176 ft² against a typical 1,696 ft²), its lot is bigger than almost none of them (0.12 ac against a typical 0.3 ac) and it is newer than 3% of them (1912 against a typical 1978). Measured against all of Waukesha County, it is worth more than 3% 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 121 Fourth St, Waukesha, WI?

The 2025 property tax bill for 121 Fourth St, Waukesha, WI was $3,821. The county assessed it at $276,100.

More homes on Fourth St

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