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Single Family ResidenceResidential
$297,686$143 / 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 92How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Jul 14, 2026
Last sold for $275,000 on Mar 4, 2022

521 S RIGGS ST

LONE TREE, IA 52755
3
Beds
3.5
Baths
2,080 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.
0.33 ac
Lot SizeThe size of the land the home sits on, from county records.
1974
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
7
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

$298K
$275K low$320K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$275,000 · Mar 4, 2022

Tax & Assessment

Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$286,800 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$48,400
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$238,400
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$267,300
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$286,800

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.Conventional
CountyJOHNSON
Lot (acres)The size of the land the home sits on, from county records.0.33
ConstructionThe main material the home's frame and walls are built from.Brick
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.Yes
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
PoolWhether the property has a pool, and what kind, such as in-ground.No
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Porch · 32 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
Lone Tree Elementary SchoolA+
Elementary · Grades PK–5 · 0.2 mi
M
Lone Tree Middle / High SchoolB
Middle · Grades 6–12 · 0.2 mi

District: Lone Tree Community School District

Neighborhood · ZIP 52755These 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.154
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.91
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.22

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.92%
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.3.7%
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.1,918
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.33 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$87,219
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$95,608
Average tempThe average temperature here across a full year.50°F
Annual precipHow much rain and melted snow falls here in a typical year.36 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.61%

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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

521 S Riggs 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 more than 84% of homes in Lone Tree 52755
  • Costs less per square foot than 92% of homes in Johnson County
  • Bigger than 85% of homes in Johnson County
  • Older than 73% of homes in Johnson County

What homes are worth in Lone Tree 52755

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

This home
$115K$451K

This home is worth more than 84% of homes in Lone Tree 52755.

How it measures up in Lone Tree 52755

The dot is this home. The mark in the middle is the typical home in Lone Tree 52755.

Estimated value$297,686
CheaperTypical $219,182Pricier

Pricier than 84% of homes nearby

Price per ft²$143
CheaperTypical $145Pricier

Pricier than 48% of homes nearby

Living area2,080 ft²
SmallerTypical 1,492 ft²Bigger

Bigger than 83% of homes nearby

Lot size0.33 ac
SmallerTypical 0.32 acBigger

Bigger than 53% of homes nearby

Year built1974
OlderTypical 1973Newer

Newer than 52% of homes nearby

How 521 S Riggs St ranks against every home in each area.
MeasureThis homeLone Tree 52755Johnson County
Estimated valuepricier than$297,68684% of homes43% of homes
Price per ft²pricier than$14348% of homes8% of homes
Living areabigger than2,080 ft²83% of homes85% of homes
Lot sizebigger than0.33 ac53% of homes59% of homes
Year builtnewer than197452% of homes27% of homes

About 521 S Riggs St

How much is 521 S Riggs St, Lone Tree, IA worth?

The TopHap Estimate for 521 S Riggs St, Lone Tree, IA is $297,686 as of Jul 14, 2026. The likely range is $275,002 to $320,370. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 521 S Riggs St, Lone Tree, IA last sell?

521 S Riggs St, Lone Tree, IA last sold on Mar 4, 2022 for $275,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 521 S Riggs St, Lone Tree, IA?

521 S Riggs St, Lone Tree, IA has 3 bedrooms, 3.5 bathrooms, 2,080 square feet of living space and a 0.33-acre lot.

When was 521 S Riggs St, Lone Tree, IA built?

521 S Riggs St, Lone Tree, IA was built in 1974, making it 52 years old. It is a conventional home. The building has 1 story.

What schools serve 521 S Riggs St, Lone Tree, IA?

521 S Riggs St, Lone Tree, IA is assigned to Lone Tree Elementary School (elementary), rated A+; Lone Tree Middle / High School (middle), rated B. All sit in Lone Tree Community School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 521 S Riggs St, Lone Tree, IA compare to other homes in Lone Tree 52755?

Among the 841 homes in Lone Tree 52755, it is worth more than 84% of them ($297,686 against a typical $219,182), its price per square foot is higher than 48% of them ($143 against a typical $145), it is bigger than 83% of them (2,080 ft² against a typical 1,492 ft²), its lot is bigger than 53% of them (0.33 ac against a typical 0.32 ac) and it is newer than 52% of them (1974 against a typical 1973). Measured against all of Johnson County, it is worth more than 43% of homes there. These shares are recounted nightly from the full county assessor record for each area, not from active listings.

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Assigned schools

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