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Single Family ResidenceResidential
$453,798$166 / 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 96How 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

421 E FOSTER AVE

ROSELLE, IL 60172
4
Beds
2.5
Baths
2,730 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.
0.27 ac
Lot SizeThe size of the land the home sits on, from county records.
1970
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
8
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
3
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$454K
$434K low$473K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$9,135 (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.$137,472 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$48,123
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$89,349
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$125,763
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$412,416

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.37
13
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
1
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
64
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
65
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.2 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%
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
CountyDUPAGE
Lot (acres)The size of the land the home sits on, from county records.0.27
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
CoolingThe type of cooling or air conditioning in the home.Window A/C
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

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

H
Lake Park High SchoolB+
High · Grades 9–12 · 0.9 mi
M
Westfield Middle SchoolA
Middle · Grades 6–8 · 1.1 mi
E
Erickson Elementary SchoolA+
Elementary · Grades PK–5 · 1.9 mi

District: Lake Park Community High School District 108

Neighborhood · ZIP 60172These 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.88
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.123
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.97%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.26%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.6.1%
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.23,052
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.3,383 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$105,042
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$132,455
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.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

421 E Foster Ave 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 Roselle 60172
  • Costs less per square foot than 96% of homes in DuPage County
  • Bigger than 87% of homes in Roselle 60172
  • Older than 77% of homes in Roselle 60172

What homes are worth in Roselle 60172

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

This home
$190K$926K

This home is worth more than 68% of homes in Roselle 60172.

How it measures up in Roselle 60172

The dot is this home. The mark in the middle is the typical home in Roselle 60172.

Estimated value$453,798
CheaperTypical $396,990Pricier

Pricier than 68% of homes nearby

Price per ft²$166
CheaperTypical $234Pricier

Pricier than 5% of homes nearby

Living area2,730 ft²
SmallerTypical 1,700 ft²Bigger

Bigger than 87% of homes nearby

Lot size0.27 ac
SmallerTypical 0.25 acBigger

Bigger than 52% of homes nearby

Year built1970
OlderTypical 1977Newer

Newer than 23% of homes nearby

How 421 E Foster Ave ranks against every home in each area.
MeasureThis homeRoselle 60172DuPage County
Estimated valuepricier than$453,79868% of homes50% of homes
Price per ft²pricier than$1665% of homes4% of homes
Living areabigger than2,730 ft²87% of homes79% of homes
Lot sizebigger than0.27 ac52% of homes58% of homes
Year builtnewer than197023% of homes36% of homes

About 421 E Foster Ave

How much is 421 E Foster Ave, Roselle, IL worth?

The TopHap Estimate for 421 E Foster Ave, Roselle, IL is $453,798 as of Aug 30, 2026. The likely range is $434,318 to $473,278. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 421 E Foster Ave, Roselle, IL last sell?

421 E Foster Ave, Roselle, IL last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 421 E Foster Ave, Roselle, IL?

421 E Foster Ave, Roselle, IL has 4 bedrooms, 2.5 bathrooms, 2,730 square feet of living space and a 0.27-acre lot.

When was 421 E Foster Ave, Roselle, IL built?

421 E Foster Ave, Roselle, IL was built in 1970, making it 56 years old. The building has 2 stories.

What schools serve 421 E Foster Ave, Roselle, IL?

421 E Foster Ave, Roselle, IL is assigned to Lake Park High School (high), rated B+; Westfield Middle School (middle), rated A; Erickson Elementary School (elementary), rated A+. All sit in Lake Park Community High School District 108. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 421 E Foster Ave, Roselle, IL compare to other homes in Roselle 60172?

Among the 8,990 homes in Roselle 60172, it is worth more than 68% of them ($453,798 against a typical $396,990), its price per square foot is higher than 5% of them ($166 against a typical $234), it is bigger than 87% of them (2,730 ft² against a typical 1,700 ft²), its lot is bigger than 52% of them (0.27 ac against a typical 0.25 ac) and it is newer than 23% of them (1970 against a typical 1977). Measured against all of DuPage County, it is worth more than 50% 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 421 E Foster Ave, Roselle, IL?

The 2025 property tax bill for 421 E Foster Ave, Roselle, IL was $9,135. The county assessed it at $137,472.

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