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Residential (General/Single)Residential
$355,973$289 / 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 91How 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 $306,000 on Dec 18, 2020

12830 TREMONT ST

BROOKFIELD, WI 53005
3
Beds
2
Baths
1,232 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.
0.3 ac
Lot SizeThe size of the land the home sits on, from county records.
1955
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
5
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$356K
$324K low$387K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$306,000 · Dec 18, 2020

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,877 (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.$343,100 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$105,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$238,100
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$386,300

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.Ranch
CountyWAUKESHA
Lot (acres)The size of the land the home sits on, from county records.0.30
HeatingThe type of heating system in the home.Hot Water
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.No
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 · 408 ft²

Transaction History(3)

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
Swanson Elementary SchoolA
Elementary · Grades PK–5 · 3.0 mi
H
Brookfield Central High SchoolA+
High · Grades 9–12 · 3.4 mi
M
Wisconsin Hills Middle SchoolA+
Middle · Grades 6–8 · 3.8 mi

District: Elmbrook School District

Neighborhood · ZIP 53005These 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.59
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.82
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.96%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.38%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.2.1%
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.22,154
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,501 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$124,763
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$158,323
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

12830 Tremont 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 87% of homes in Brookfield 53005
  • Costs more per square foot than 79% of homes in Brookfield 53005
  • Smaller than 91% of homes in Brookfield 53005
  • Has a smaller lot than 90% of homes in Brookfield 53005
  • Older than 81% of homes in Waukesha County

What homes are worth in Brookfield 53005

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

This home
$306K$1.1M

This home is worth more than 13% of homes in Brookfield 53005.

How it measures up in Brookfield 53005

The dot is this home. The mark in the middle is the typical home in Brookfield 53005.

Estimated value$355,973
CheaperTypical $475,747Pricier

Pricier than 13% of homes nearby

Price per ft²$289
CheaperTypical $249Pricier

Pricier than 79% of homes nearby

Living area1,232 ft²
SmallerTypical 1,892 ft²Bigger

Bigger than 9% of homes nearby

Lot size0.3 ac
SmallerTypical 0.55 acBigger

Bigger than 10% of homes nearby

Year built1955
OlderTypical 1960Newer

Newer than 31% of homes nearby

How 12830 Tremont St ranks against every home in each area.
MeasureThis homeBrookfield 53005Waukesha County
Estimated valuepricier than$355,97313% of homes22% of homes
Price per ft²pricier than$28979% of homes78% of homes
Living areabigger than1,232 ft²9% of homes16% of homes
Lot sizebigger than0.3 ac10% of homes26% of homes
Year builtnewer than195531% of homes19% of homes

About 12830 Tremont St

How much is 12830 Tremont St, Brookfield, WI worth?

The TopHap Estimate for 12830 Tremont St, Brookfield, WI is $355,973 as of Aug 30, 2026. The likely range is $324,496 to $387,450. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 12830 Tremont St, Brookfield, WI last sell?

12830 Tremont St, Brookfield, WI last sold on Dec 18, 2020 for $306,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 12830 Tremont St, Brookfield, WI?

12830 Tremont St, Brookfield, WI has 3 bedrooms, 2 bathrooms, 1,232 square feet of living space and a 0.30-acre lot.

When was 12830 Tremont St, Brookfield, WI built?

12830 Tremont St, Brookfield, WI was built in 1955, making it 71 years old. It is a ranch home. The building has 1 story.

What schools serve 12830 Tremont St, Brookfield, WI?

12830 Tremont St, Brookfield, WI is assigned to Swanson Elementary School (elementary), rated A; Brookfield Central High School (high), rated A+; Wisconsin Hills Middle School (middle), rated A+. All sit in Elmbrook School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 12830 Tremont St, Brookfield, WI compare to other homes in Brookfield 53005?

Among the 7,726 homes in Brookfield 53005, it is worth more than 13% of them ($355,973 against a typical $475,747), its price per square foot is higher than 79% of them ($289 against a typical $249), it is bigger than 9% of them (1,232 ft² against a typical 1,892 ft²), its lot is bigger than 10% of them (0.3 ac against a typical 0.55 ac) and it is newer than 31% of them (1955 against a typical 1960). Measured against all of Waukesha County, it is worth more than 22% 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 12830 Tremont St, Brookfield, WI?

The 2025 property tax bill for 12830 Tremont St, Brookfield, WI was $3,877. The county assessed it at $343,100.

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