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Single Family ResidenceResidential
$342,381$330 / 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 86How 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 $270,000 on Aug 24, 2021

1447 WILLIAM ST

SYCAMORE, IL 60178
1
Beds
2.5
Baths
1,036 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.
0.23 ac
Lot SizeThe size of the land the home sits on, from county records.
1991
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
3
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$342K
$296K low$389K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$270,000 · Aug 24, 2021

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$7,121 (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.$97,485 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$20,964
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$76,521
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$91,655
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$292,455

Climate Risk

Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.9 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.6%
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.minimal

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
CountyDEKALB
Effective Year BuiltAn adjusted build year that accounts for condition and major remodels. A big renovation can make a home count as newer than it is.1992
Lot (acres)The size of the land the home sits on, from county records.0.23
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.Central
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.Deck · 335 ft²

Transaction History(6)

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
North Elementary SchoolB
Elementary · Grades KG–5 · 0.4 mi
M
Sycamore Middle SchoolB-
Middle · Grades 6–8 · 0.9 mi
H
Sycamore High SchoolB+
High · Grades 9–12 · 1.5 mi

District: Sycamore Community Unit School District 427

Neighborhood · ZIP 60178These 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.69
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.88
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.51

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.97%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.27%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.6.9%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.5%
PopulationHow many people live in this area.23,227
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.340 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$88,175
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$103,851
Average tempThe average temperature here across a full year.48°F
Annual precipHow much rain and melted snow falls here in a typical year.37 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.52%

Owner Tools

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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

1447 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 68% of homes in DeKalb County
  • Costs more per square foot than 87% of homes in Sycamore 60178
  • Smaller than 77% of homes in Sycamore 60178

What homes are worth in Sycamore 60178

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

This home
$169K$649K

This home is worth more than 57% of homes in Sycamore 60178.

How it measures up in Sycamore 60178

The dot is this home. The mark in the middle is the typical home in Sycamore 60178.

Estimated value$342,381
CheaperTypical $316,874Pricier

Pricier than 57% of homes nearby

Price per ft²$330
CheaperTypical $236Pricier

Pricier than 87% of homes nearby

Living area1,036 ft²
SmallerTypical 1,326 ft²Bigger

Bigger than 23% of homes nearby

Lot size0.23 ac
SmallerTypical 0.25 acBigger

Bigger than 38% of homes nearby

Year built1991
OlderTypical 1991Newer

Newer than 51% of homes nearby

How 1447 William St ranks against every home in each area.
MeasureThis homeSycamore 60178DeKalb County
Estimated valuepricier than$342,38157% of homes68% of homes
Price per ft²pricier than$33087% of homes87% of homes
Living areabigger than1,036 ft²23% of homes23% of homes
Lot sizebigger than0.23 ac38% of homes39% of homes
Year builtnewer than199151% of homes46% of homes

About 1447 William St

How much is 1447 William St, Sycamore, IL worth?

The TopHap Estimate for 1447 William St, Sycamore, IL is $342,381 as of Sep 24, 2026. The likely range is $296,142 to $388,620. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 1447 William St, Sycamore, IL last sell?

1447 William St, Sycamore, IL last sold on Aug 24, 2021 for $270,000, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 1447 William St, Sycamore, IL?

1447 William St, Sycamore, IL has 1 bedrooms, 2.5 bathrooms, 1,036 square feet of living space and a 0.23-acre lot.

When was 1447 William St, Sycamore, IL built?

1447 William St, Sycamore, IL was built in 1991, making it 35 years old. The building has 2 stories.

What schools serve 1447 William St, Sycamore, IL?

1447 William St, Sycamore, IL is assigned to North Elementary School (elementary), rated B; Sycamore Middle School (middle), rated B-; Sycamore High School (high), rated B+. All sit in Sycamore Community Unit School District 427. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 1447 William St, Sycamore, IL compare to other homes in Sycamore 60178?

Among the 7,687 homes in Sycamore 60178, it is worth more than 57% of them ($342,381 against a typical $316,874), its price per square foot is higher than 87% of them ($330 against a typical $236), it is bigger than 23% of them (1,036 ft² against a typical 1,326 ft²), its lot is bigger than 38% of them (0.23 ac against a typical 0.25 ac) and it is newer than 51% of them (1991 against a typical 1991). Measured against all of DeKalb County, it is worth more than 68% 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 1447 William St, Sycamore, IL?

The 2024 property tax bill for 1447 William St, Sycamore, IL was $7,121. The county assessed it at $97,485.

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