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Single Family ResidenceResidential
$144,785$129 / 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 76How 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

521 PROSPECT DR

SPENCER, IA 51301
2
Beds
2
Baths
1,120 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.
0.21 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.
1
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$145K
$110K low$179K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,158 (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.$175,360 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$27,440
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$147,920
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$160,260
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$175,360

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.Ranch
CountyCLAY
Lot (acres)The size of the land the home sits on, from county records.0.21
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.Shingle
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 · 256 ft²

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

E
Fairview Park Elementary School
Elementary · Grades 1–2 · 1.5 mi
H
Spencer High SchoolB+
High · Grades 9–12 · 1.6 mi
M
Spencer Middle SchoolA
Middle · Grades 7–8 · 1.8 mi

District: Spencer Community School District

Neighborhood · ZIP 51301These 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.103
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.89
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.15

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.91%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.20%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.11%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.1%
PopulationHow many people live in this area.12,636
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.80 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$63,520
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$80,070
Average tempThe average temperature here across a full year.46°F
Annual precipHow much rain and melted snow falls here in a typical year.30 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 Prospect Dr 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 68% of homes in Clay County
  • Smaller than 71% of homes in Clay County
  • Has a smaller lot than 65% of homes in Clay County

What homes are worth in Spencer 51301

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

This home
$46K$459K

This home is worth more than 48% of homes in Spencer 51301.

How it measures up in Spencer 51301

The dot is this home. The mark in the middle is the typical home in Spencer 51301.

Estimated value$144,785
CheaperTypical $147,355Pricier

Pricier than 48% of homes nearby

Price per ft²$129
CheaperTypical $118Pricier

Pricier than 59% of homes nearby

Living area1,120 ft²
SmallerTypical 1,371 ft²Bigger

Bigger than 32% of homes nearby

Lot size0.21 ac
SmallerTypical 0.23 acBigger

Bigger than 42% of homes nearby

Year built1955
OlderTypical 1958Newer

Newer than 47% of homes nearby

How 521 Prospect Dr ranks against every home in each area.
MeasureThis homeSpencer 51301Clay County
Estimated valuepricier than$144,78548% of homes57% of homes
Price per ft²pricier than$12959% of homes68% of homes
Living areabigger than1,120 ft²32% of homes29% of homes
Lot sizebigger than0.21 ac42% of homes35% of homes
Year builtnewer than195547% of homes51% of homes

About 521 Prospect Dr

How much is 521 Prospect Dr, Spencer, IA worth?

The TopHap Estimate for 521 Prospect Dr, Spencer, IA is $144,785 as of Jul 14, 2026. The likely range is $110,084 to $179,486. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 521 Prospect Dr, Spencer, IA last sell?

521 Prospect Dr, Spencer, IA last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 521 Prospect Dr, Spencer, IA?

521 Prospect Dr, Spencer, IA has 2 bedrooms, 2 bathrooms, 1,120 square feet of living space and a 0.21-acre lot.

When was 521 Prospect Dr, Spencer, IA built?

521 Prospect Dr, Spencer, IA was built in 1955, making it 71 years old. It is a ranch home. The building has 1 story.

What schools serve 521 Prospect Dr, Spencer, IA?

521 Prospect Dr, Spencer, IA is assigned to Fairview Park Elementary School (elementary); Spencer High School (high), rated B+; Spencer Middle School (middle), rated A. All sit in Spencer Community School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 521 Prospect Dr, Spencer, IA compare to other homes in Spencer 51301?

Among the 5,011 homes in Spencer 51301, it is worth more than 48% of them ($144,785 against a typical $147,355), its price per square foot is higher than 59% of them ($129 against a typical $118), it is bigger than 32% of them (1,120 ft² against a typical 1,371 ft²), its lot is bigger than 42% of them (0.21 ac against a typical 0.23 ac) and it is newer than 47% of them (1955 against a typical 1958). Measured against all of Clay 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 521 Prospect Dr, Spencer, IA?

The 2025 property tax bill for 521 Prospect Dr, Spencer, IA was $2,158. The county assessed it at $175,360.

More homes on Prospect Dr

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Assigned schools

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