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Single Family ResidenceResidential
$300,164$227 / 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 82How 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 $267,000 on Jul 29, 2024

803 12TH ST

ROCK VALLEY, IA 51247
2.5
Baths
1,320 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.
3.45 ac
Lot SizeThe size of the land the home sits on, from county records.
1954
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
9
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

$300K
$247K low$353K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$267,000 · Jul 29, 2024
Est. Owner EquityRoughly how much of the home's value the owner would keep after paying off known loans. It is our estimate minus the loans still owed.$300,164
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$240,131

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,462 (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.$50,610 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$27,190
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$23,420
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$158,640
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$50,610

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
93
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
40
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
15
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.57 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.51%
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.1 percent flood zone

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
CountySIOUX
Lot (acres)The size of the land the home sits on, from county records.3.45
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
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.Patio · 120 ft²

Transaction History(1)

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
Rock Valley Elementary SchoolA
Elementary · Grades PK–5 · 1.1 mi
M
Rock Valley High SchoolA-
Middle · Grades 9–12 · 1.1 mi

District: Rock Valley Community School District

Neighborhood · ZIP 51247These 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.127
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.94
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.14%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.6.5%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.7%
PopulationHow many people live in this area.5,240
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.47 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$83,197
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$99,994
Average tempThe average temperature here across a full year.47°F
Annual precipHow much rain and melted snow falls here in a typical year.27 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.61%

Ownership

OccupancyWhether the owner appears to live here or somewhere else. It is inferred from the mailing address on record.Owner occupied
Company ownedWhether the owner is a company or trust rather than a person.Yes

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

803 12th 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.

  • Costs more per square foot than 69% of homes in Sioux County
  • Smaller than 68% of homes in Sioux County
  • Has a bigger lot than 83% of homes in Rock Valley 51247
  • Older than 66% of homes in Rock Valley 51247

What homes are worth in Rock Valley 51247

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

This home
$97K$688K

This home is worth more than 54% of homes in Rock Valley 51247.

How it measures up in Rock Valley 51247

The dot is this home. The mark in the middle is the typical home in Rock Valley 51247.

Estimated value$300,164
CheaperTypical $282,167Pricier

Pricier than 54% of homes nearby

Price per ft²$227
CheaperTypical $191Pricier

Pricier than 67% of homes nearby

Living area1,320 ft²
SmallerTypical 1,500 ft²Bigger

Bigger than 33% of homes nearby

Lot size3.45 ac
SmallerTypical 0.36 acBigger

Bigger than 83% of homes nearby

Year built1954
OlderTypical 1975Newer

Newer than 34% of homes nearby

How 803 12th St ranks against every home in each area.
MeasureThis homeRock Valley 51247Sioux County
Estimated valuepricier than$300,16454% of homes57% of homes
Price per ft²pricier than$22767% of homes69% of homes
Living areabigger than1,320 ft²33% of homes32% of homes
Lot sizebigger than3.45 ac83% of homes83% of homes
Year builtnewer than195434% of homes39% of homes

About 803 12th St

How much is 803 12th St, Rock Valley, IA worth?

The TopHap Estimate for 803 12th St, Rock Valley, IA is $300,164 as of Jul 14, 2026. The likely range is $246,943 to $353,385. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 803 12th St, Rock Valley, IA last sell?

803 12th St, Rock Valley, IA last sold on Jul 29, 2024 for $267,000, according to the county's recorded deed.

How big is 803 12th St, Rock Valley, IA?

803 12th St, Rock Valley, IA has 2.5 bathrooms, 1,320 square feet of living space and a 3.45-acre lot.

When was 803 12th St, Rock Valley, IA built?

803 12th St, Rock Valley, IA was built in 1954, making it 72 years old. The building has 1 story.

What schools serve 803 12th St, Rock Valley, IA?

803 12th St, Rock Valley, IA is assigned to Rock Valley Elementary School (elementary), rated A; Rock Valley High School (middle), rated A-. All sit in Rock Valley Community School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 803 12th St, Rock Valley, IA compare to other homes in Rock Valley 51247?

Among the 1,825 homes in Rock Valley 51247, it is worth more than 54% of them ($300,164 against a typical $282,167), its price per square foot is higher than 67% of them ($227 against a typical $191), it is bigger than 33% of them (1,320 ft² against a typical 1,500 ft²), its lot is bigger than 83% of them (3.45 ac against a typical 0.36 ac) and it is newer than 34% of them (1954 against a typical 1975). Measured against all of Sioux County, it is worth more than 57% 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 803 12th St, Rock Valley, IA?

The 2025 property tax bill for 803 12th St, Rock Valley, IA was $2,462. The county assessed it at $50,610.

More homes on 12th St

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Assigned schools

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