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Single Family ResidenceResidential
$100,462$70 / 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 78How 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

503 CALIFORNIA ST

LEWIS, IA 51544
4
Beds
1.5
Baths
1,442 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.
0.17 ac
Lot SizeThe size of the land the home sits on, from county records.
1925
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$100K
$79K low$122K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,236 (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.$75,500 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$2,310
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$73,190
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$77,120
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$75,500

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyCASS
Lot (acres)The size of the land the home sits on, from county records.0.17
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Yes
CoolingThe type of cooling or air conditioning in the home.Yes
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.Deck · 146 ft²Patio · 146 ft²Porch · 239 ft²

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.

Foreclosure Filings(1)

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

E
Griswold Elementary SchoolD+
Elementary · Grades PK–5 · 5.1 mi
M
Griswold Middle/High SchoolA-
Middle · Grades 6–12 · 5.1 mi

District: Griswold Community School District

Neighborhood · ZIP 51544These 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.113
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 100.15

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.0.9%
PopulationHow many people live in this area.540
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.10 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$74,317
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$107,912
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

503 California 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 less than 73% of homes in Lewis 51544
  • Costs less per square foot than 74% of homes in Lewis 51544
  • Among the smallest lots in Lewis 51544

What homes are worth in Lewis 51544

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

This home
$41K$322K

This home is worth more than 27% of homes in Lewis 51544.

How it measures up in Lewis 51544

The dot is this home. The mark in the middle is the typical home in Lewis 51544.

Estimated value$100,462
CheaperTypical $137,270Pricier

Pricier than 27% of homes nearby

Price per ft²$70
CheaperTypical $95Pricier

Pricier than 26% of homes nearby

Living area1,442 ft²
SmallerTypical 1,421 ft²Bigger

Bigger than 51% of homes nearby

Lot size0.17 ac
SmallerTypical 0.84 acBigger

Smaller than almost all homes nearby

Year built1925
OlderTypical 1920Newer

Newer than 52% of homes nearby

How 503 California St ranks against every home in each area.
MeasureThis homeLewis 51544Cass County
Estimated valuepricier than$100,46227% of homes37% of homes
Price per ft²pricier than$7026% of homes33% of homes
Living areabigger than1,442 ft²51% of homes50% of homes
Lot sizebigger than0.17 acalmost no homes25% of homes
Year builtnewer than192552% of homes46% of homes

About 503 California St

How much is 503 California St, Lewis, IA worth?

The TopHap Estimate for 503 California St, Lewis, IA is $100,462 as of Aug 30, 2026. The likely range is $78,605 to $122,319. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 503 California St, Lewis, IA last sell?

503 California St, Lewis, IA last sold on Oct 3, 2014, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 503 California St, Lewis, IA?

503 California St, Lewis, IA has 4 bedrooms, 1.5 bathrooms, 1,442 square feet of living space and a 0.17-acre lot.

When was 503 California St, Lewis, IA built?

503 California St, Lewis, IA was built in 1925, making it 101 years old. The building has 1 story.

What schools serve 503 California St, Lewis, IA?

503 California St, Lewis, IA is assigned to Griswold Elementary School (elementary), rated D+; Griswold Middle/High School (middle), rated A-. All sit in Griswold Community School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 503 California St, Lewis, IA compare to other homes in Lewis 51544?

Among the 321 homes in Lewis 51544, it is worth more than 27% of them ($100,462 against a typical $137,270), its price per square foot is higher than 26% of them ($70 against a typical $95), it is bigger than 51% of them (1,442 ft² against a typical 1,421 ft²), its lot is bigger than almost none of them (0.17 ac against a typical 0.84 ac) and it is newer than 52% of them (1925 against a typical 1920). Measured against all of Cass County, it is worth more than 37% 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 503 California St, Lewis, IA?

The 2025 property tax bill for 503 California St, Lewis, IA was $1,236. The county assessed it at $75,500.

More homes on California St

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Assigned schools

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