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Residential (General/Single)Residential
$325,549$184 / 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 Sep 24, 2026
Last sold for $320,000 on Apr 20, 2026

1003 W WILLIAM ST

CHAMPAIGN, IL 61821
2
Baths
1,769 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.
0.15 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.
1
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$326K
$294K low$357K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$320,000 · Apr 20, 2026

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$6,188 (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.$91,960 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$27,320
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$64,640
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$81,960
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$275,880

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Residential (General/Single)
CountyCHAMPAIGN
Lot (acres)The size of the land the home sits on, from county records.0.15
HeatingThe type of heating system in the home.Central
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, Detached
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 · 287 ft²

Transaction History(4)

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
South Side Elementary SchoolB
Elementary · Grades KG–5 · 0.3 mi
M
Edison Middle SchoolC-
Middle · Grades 6–8 · 0.7 mi
H
Central High SchoolB
High · Grades 9–12 · 0.8 mi

District: Champaign Community Unit School District 4

Neighborhood · ZIP 61821These 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.78
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.86
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.49

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.93%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.21%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.13%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.4%
PopulationHow many people live in this area.31,352
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.3,528 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$74,699
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$92,842
Average tempThe average temperature here across a full year.52°F
Annual precipHow much rain and melted snow falls here in a typical year.40 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.56%

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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

1003 W William 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 89% of homes in Champaign 61821
  • Costs more per square foot than 66% of homes in Champaign 61821
  • Bigger than 88% of homes in Champaign 61821
  • Has a smaller lot than 75% of homes in Champaign 61821
  • Older than 92% of homes in Champaign 61821

What homes are worth in Champaign 61821

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

This home
$83K$532K

This home is worth more than 89% of homes in Champaign 61821.

How it measures up in Champaign 61821

The dot is this home. The mark in the middle is the typical home in Champaign 61821.

Estimated value$325,549
CheaperTypical $197,402Pricier

Pricier than 89% of homes nearby

Price per ft²$184
CheaperTypical $161Pricier

Pricier than 66% of homes nearby

Living area1,769 ft²
SmallerTypical 1,168 ft²Bigger

Bigger than 88% of homes nearby

Lot size0.15 ac
SmallerTypical 0.17 acBigger

Bigger than 25% of homes nearby

Year built1925
OlderTypical 1960Newer

Newer than 8% of homes nearby

How 1003 W William St ranks against every home in each area.
MeasureThis homeChampaign 61821Champaign County
Estimated valuepricier than$325,54989% of homes75% of homes
Price per ft²pricier than$18466% of homes65% of homes
Living areabigger than1,769 ft²88% of homes84% of homes
Lot sizebigger than0.15 ac25% of homes25% of homes
Year builtnewer than19258% of homes16% of homes

About 1003 W William St

How much is 1003 W William St, Champaign, IL worth?

The TopHap Estimate for 1003 W William St, Champaign, IL is $325,549 as of Sep 24, 2026. The likely range is $293,635 to $357,463. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 1003 W William St, Champaign, IL last sell?

1003 W William St, Champaign, IL last sold on Apr 20, 2026 for $320,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 1003 W William St, Champaign, IL?

1003 W William St, Champaign, IL has 2 bathrooms, 1,769 square feet of living space and a 0.15-acre lot.

When was 1003 W William St, Champaign, IL built?

1003 W William St, Champaign, IL was built in 1925, making it 101 years old. The building has 1 story.

What schools serve 1003 W William St, Champaign, IL?

1003 W William St, Champaign, IL is assigned to South Side Elementary School (elementary), rated B; Edison Middle School (middle), rated C-; Central High School (high), rated B. All sit in Champaign Community Unit School District 4. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 1003 W William St, Champaign, IL compare to other homes in Champaign 61821?

Among the 10,341 homes in Champaign 61821, it is worth more than 89% of them ($325,549 against a typical $197,402), its price per square foot is higher than 66% of them ($184 against a typical $161), it is bigger than 88% of them (1,769 ft² against a typical 1,168 ft²), its lot is bigger than 25% of them (0.15 ac against a typical 0.17 ac) and it is newer than 8% of them (1925 against a typical 1960). Measured against all of Champaign County, it is worth more than 75% 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 1003 W William St, Champaign, IL?

The 2024 property tax bill for 1003 W William St, Champaign, IL was $6,188. The county assessed it at $91,960.

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