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Single Family ResidenceResidential
$935,481$242 / 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 95How 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 $526,000 on Aug 1, 2007

3908 FORMBY CT

NAPERVILLE, IL 60564
3.5
Baths
3,865 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.
0.25 ac
Lot SizeThe size of the land the home sits on, from county records.
2007
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.

Valuation

$935K
$886K low$985K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$526,000 · Aug 1, 2007

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$16,291 (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.$272,132 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$60,823
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$211,309
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$247,505
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$816,396

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.44
10
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
18
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
72
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
76
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
45
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.6 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
CountyWILL
Lot (acres)The size of the land the home sits on, from county records.0.25
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
PoolWhether the property has a pool, and what kind, such as in-ground.No

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(2)

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

E
Freedom Elementary SchoolA
Elementary · Grades KG–5 · 0.8 mi
H
Plainfield North High SchoolA
High · Grades 9–12 · 1.1 mi
M
Heritage Grove Middle SchoolA-
Middle · Grades 6–8 · 1.8 mi

District: Plainfield School District 202

Neighborhood · ZIP 60564These 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.36
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.95
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.58

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.38%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.4.4%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.8%
PopulationHow many people live in this area.44,809
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,870 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$167,253
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$208,248
Average tempThe average temperature here across a full year.49°F
Annual precipHow much rain and melted snow falls here in a typical year.38 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.54%

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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

3908 Formby Ct 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 98% of homes in Will County
  • Costs less per square foot than 82% of homes in Naperville 60564
  • Bigger than 97% of homes in Will County
  • Newer than 95% of homes in Will County

What homes are worth in Naperville 60564

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

This home
$289K$1.3M

This home is worth more than 81% of homes in Naperville 60564.

How it measures up in Naperville 60564

The dot is this home. The mark in the middle is the typical home in Naperville 60564.

Estimated value$935,481
CheaperTypical $749,908Pricier

Pricier than 81% of homes nearby

Price per ft²$242
CheaperTypical $268Pricier

Pricier than 18% of homes nearby

Living area3,865 ft²
SmallerTypical 2,761 ft²Bigger

Bigger than 89% of homes nearby

Lot size0.25 ac
SmallerTypical 0.25 acBigger

Bigger than 45% of homes nearby

Year built2007
OlderTypical 1998Newer

Newer than 83% of homes nearby

How 3908 Formby Ct ranks against every home in each area.
MeasureThis homeNaperville 60564Will County
Estimated valuepricier than$935,48181% of homes98% of homes
Price per ft²pricier than$24218% of homes75% of homes
Living areabigger than3,865 ft²89% of homes97% of homes
Lot sizebigger than0.25 ac45% of homes54% of homes
Year builtnewer than200783% of homes95% of homes

About 3908 Formby Ct

How much is 3908 Formby Ct, Naperville, IL worth?

The TopHap Estimate for 3908 Formby Ct, Naperville, IL is $935,481 as of Jul 14, 2026. The likely range is $885,570 to $985,392. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 3908 Formby Ct, Naperville, IL last sell?

3908 Formby Ct, Naperville, IL last sold on Aug 1, 2007 for $526,000, according to the county's recorded deed.

How big is 3908 Formby Ct, Naperville, IL?

3908 Formby Ct, Naperville, IL has 3.5 bathrooms, 3,865 square feet of living space and a 0.25-acre lot.

When was 3908 Formby Ct, Naperville, IL built?

3908 Formby Ct, Naperville, IL was built in 2007, making it 19 years old. The building has 2 stories.

What schools serve 3908 Formby Ct, Naperville, IL?

3908 Formby Ct, Naperville, IL is assigned to Freedom Elementary School (elementary), rated A; Plainfield North High School (high), rated A; Heritage Grove Middle School (middle), rated A-. All sit in Plainfield School District 202. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 3908 Formby Ct, Naperville, IL compare to other homes in Naperville 60564?

Among the 15,230 homes in Naperville 60564, it is worth more than 81% of them ($935,481 against a typical $749,908), its price per square foot is higher than 18% of them ($242 against a typical $268), it is bigger than 89% of them (3,865 ft² against a typical 2,761 ft²), its lot is bigger than 45% of them (0.25 ac against a typical 0.25 ac) and it is newer than 83% of them (2007 against a typical 1998). Measured against all of Will County, it is worth more than 98% 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 3908 Formby Ct, Naperville, IL?

The 2025 property tax bill for 3908 Formby Ct, Naperville, IL was $16,291. The county assessed it at $272,132.

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