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Single Family ResidenceResidential
$348,556$206 / 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 90How 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 $27,000 on Aug 19, 1999

9507 20TH AVE

PROLE, IA 50229
4
Beds
3
Baths
1,692 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.
4.18 ac
Lot SizeThe size of the land the home sits on, from county records.
2001
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
8
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$349K
$314K low$384K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$27,000 · Aug 19, 1999

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,310 (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.$477,800 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$132,900
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$344,900
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$353,500
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$477,800

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyWarren
Lot (acres)The size of the land the home sits on, from county records.4.18
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
FoundationWhat the home is built on, such as a concrete slab, a crawl space, or a basement.Concrete
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Forced Air
CoolingThe type of cooling or air conditioning in the home.Central
FireplaceWhether the home has a fireplace, and what kind.Yes
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Attached
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Deck · 64 ft²Patio · 264 ft²

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

E
Martensdale - St. Marys ElementaryA+
Elementary · Grades PK–6 · 1.8 mi
M
Martensdale - St. Marys Jr. / Sr. High SchoolC
Middle · Grades 7–12 · 1.8 mi

District: Martensdale-St. Marys Community School District

Neighborhood · ZIP 50229These 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.142
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.123
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.18

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.19%
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.1,641
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.40 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$97,135
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$116,114
Average tempThe average temperature here across a full year.50°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.59%

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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

9507 20th 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 74% of homes in Prole 50229
  • Costs less per square foot than 71% of homes in Prole 50229
  • Has a bigger lot than 83% of homes in Warren County

What homes are worth in Prole 50229

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

This home
$171K$854K

This home is worth more than 26% of homes in Prole 50229.

How it measures up in Prole 50229

The dot is this home. The mark in the middle is the typical home in Prole 50229.

Estimated value$348,556
CheaperTypical $434,612Pricier

Pricier than 26% of homes nearby

Price per ft²$206
CheaperTypical $251Pricier

Pricier than 29% of homes nearby

Living area1,692 ft²
SmallerTypical 1,688 ft²Bigger

Bigger than 50% of homes nearby

Lot size4.18 ac
SmallerTypical 5.51 acBigger

Bigger than 40% of homes nearby

Year built2001
OlderTypical 1995Newer

Newer than 63% of homes nearby

How 9507 20th Ave ranks against every home in each area.
MeasureThis homeProle 50229Warren County
Estimated valuepricier than$348,55626% of homes64% of homes
Price per ft²pricier than$20629% of homes51% of homes
Living areabigger than1,692 ft²50% of homes63% of homes
Lot sizebigger than4.18 ac40% of homes83% of homes
Year builtnewer than200163% of homes62% of homes

About 9507 20th Ave

How much is 9507 20th Ave, Prole, IA worth?

The TopHap Estimate for 9507 20th Ave, Prole, IA is $348,556 as of Aug 30, 2026. The likely range is $313,514 to $383,598. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 9507 20th Ave, Prole, IA last sell?

9507 20th Ave, Prole, IA last sold on Aug 19, 1999 for $27,000, according to the county's recorded deed.

How big is 9507 20th Ave, Prole, IA?

9507 20th Ave, Prole, IA has 4 bedrooms, 3 bathrooms, 1,692 square feet of living space and a 4.18-acre lot.

When was 9507 20th Ave, Prole, IA built?

9507 20th Ave, Prole, IA was built in 2001, making it 25 years old. The building has 1 story.

What schools serve 9507 20th Ave, Prole, IA?

9507 20th Ave, Prole, IA is assigned to Martensdale - St. Marys Elementary (elementary), rated A+; Martensdale - St. Marys Jr. / Sr. High School (middle), rated C. All sit in Martensdale-St. Marys Community School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 9507 20th Ave, Prole, IA compare to other homes in Prole 50229?

Among the 494 homes in Prole 50229, it is worth more than 26% of them ($348,556 against a typical $434,612), its price per square foot is higher than 29% of them ($206 against a typical $251), it is bigger than 50% of them (1,692 ft² against a typical 1,688 ft²), its lot is bigger than 40% of them (4.18 ac against a typical 5.51 ac) and it is newer than 63% of them (2001 against a typical 1995). Measured against all of Warren County, it is worth more than 64% 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 9507 20th Ave, Prole, IA?

The 2024 property tax bill for 9507 20th Ave, Prole, IA was $4,310. The county assessed it at $477,800.

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