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Single Family ResidenceResidential
$571,339
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 82How 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 $450,000 on Mar 31, 2023

4729 HALLEY AVE

SPARTA, WI 54656
0
Baths
2.02 ac
Lot SizeThe size of the land the home sits on, from county records.

Valuation

$571K
$469K low$674K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$450,000 · Mar 31, 2023

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,322 (2024)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$279,600 (2024)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$35,100
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$244,500
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$279,600
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$392,200

Climate Risk

Overall riskThe average of the five hazard scores below, on a 0 to 100 scale. Higher means greater projected risk over the coming decades.29
10
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
12
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
60
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
64
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
1
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.6 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.6%
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.Single Family Residence
CountyMonroe
Lot (acres)The size of the land the home sits on, from county records.2.02

Transaction History(2)

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
Sparta High SchoolD+
High · Grades 9–12 · 3.8 mi
E
Herrman Elementary SchoolD+
Elementary · Grades 1–4 · 4.0 mi
M
Meadowview Middle SchoolC-
Middle · Grades 5–8 · 4.6 mi

District: Sparta Area School District

Neighborhood · ZIP 54656These 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.111
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.80
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.12

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.13%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.12%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.8%
PopulationHow many people live in this area.18,088
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.65 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$66,766
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$82,743
Average tempThe average temperature here across a full year.45°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

4729 Halley 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 more than 98% of homes in Sparta 54656
  • Has a bigger lot than 69% of homes in Sparta 54656

What homes are worth in Sparta 54656

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

This home
$70K$596K

This home is worth more than 98% of homes in Sparta 54656.

How it measures up in Sparta 54656

The dot is this home. The mark in the middle is the typical home in Sparta 54656.

Estimated value$571,339
CheaperTypical $253,953Pricier

Pricier than 98% of homes nearby

Lot size2.02 ac
SmallerTypical 0.66 acBigger

Bigger than 69% of homes nearby

How 4729 Halley Ave ranks against every home in each area.
MeasureThis homeSparta 54656Monroe County
Estimated valuepricier than$571,33998% of homes98% of homes
Lot sizebigger than2.02 ac69% of homes66% of homes

About 4729 Halley Ave

How much is 4729 Halley Ave, Sparta, WI worth?

The TopHap Estimate for 4729 Halley Ave, Sparta, WI is $571,339 as of Sep 24, 2026. The likely range is $468,908 to $673,770. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 4729 Halley Ave, Sparta, WI last sell?

4729 Halley Ave, Sparta, WI last sold on Mar 31, 2023 for $450,000, according to the county's recorded deed.

What schools serve 4729 Halley Ave, Sparta, WI?

4729 Halley Ave, Sparta, WI is assigned to Sparta High School (high), rated D+; Herrman Elementary School (elementary), rated D+; Meadowview Middle School (middle), rated C-. All sit in Sparta Area School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 4729 Halley Ave, Sparta, WI compare to other homes in Sparta 54656?

Among the 5,843 homes in Sparta 54656, it is worth more than 98% of them ($571,339 against a typical $253,953) and its lot is bigger than 69% of them (2.02 ac against a typical 0.66 ac). Measured against all of Monroe County, it is worth more than 98% 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 4729 Halley Ave, Sparta, WI?

The 2024 property tax bill for 4729 Halley Ave, Sparta, WI was $4,322. The county assessed it at $279,600.

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