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TownhouseResidential
$420,883$246 / 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 91How 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 $223,500 on Feb 25, 2002

12240 SUMNER ST

LEMONT, IL 60439
3
Beds
3 / 1
Baths
1,714 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.
3,920 ft²
Lot SizeThe size of the land the home sits on, from county records.
2001
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
6
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$421K
$384K low$458K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$223,500 · Feb 25, 2002

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$7,000 (2023)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$37,000 (2024)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$3,136
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$33,864
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$37,000
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$370,000

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.52
61
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
12
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.
74
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.25 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%

Scores 0–100; higher = greater projected risk.

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Townhouse
StyleThe architectural style of the home, such as ranch or colonial.Modern
CountyCook
Lot (acres)The size of the land the home sits on, from county records.0.09
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.Composition Shingle
HeatingThe type of heating system in the home.Forced Air
CoolingThe type of cooling or air conditioning in the home.Central
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Attached

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

H
Lemont Township High SchoolA+
High · Grades 9–12 · 1.1 mi
E
Oakwood School
Elementary · Grades PK–1 · 1.1 mi
M
Old Quarry Middle SchoolA+
Middle · Grades 6–8 · 2.1 mi

District: Lemont Township High School District 210

Neighborhood · ZIP 60439These 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.38
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.108
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.50

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.96%
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.2.9%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.6%
PopulationHow many people live in this area.25,154
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.776 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$127,381
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$151,623
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

12240 Sumner 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 80% of homes in Lemont 60439
  • Smaller than 72% of homes in Lemont 60439
  • Has a smaller lot than 93% of homes in Lemont 60439
  • Newer than 91% of homes in Cook County

What homes are worth in Lemont 60439

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

This home
$256K$1.1M

This home is worth more than 20% of homes in Lemont 60439.

How it measures up in Lemont 60439

The dot is this home. The mark in the middle is the typical home in Lemont 60439.

Estimated value$420,883
CheaperTypical $594,901Pricier

Pricier than 20% of homes nearby

Price per ft²$246
CheaperTypical $259Pricier

Pricier than 37% of homes nearby

Living area1,714 ft²
SmallerTypical 2,314 ft²Bigger

Bigger than 28% of homes nearby

Lot size3,920 ft²
SmallerTypical 0.28 acBigger

Bigger than 7% of homes nearby

Year built2001
OlderTypical 1993Newer

Newer than 75% of homes nearby

How 12240 Sumner St ranks against every home in each area.
MeasureThis homeLemont 60439Cook County
Estimated valuepricier than$420,88320% of homes66% of homes
Price per ft²pricier than$24637% of homes48% of homes
Living areabigger than1,714 ft²28% of homes61% of homes
Lot sizebigger than3,920 ft²7% of homes27% of homes
Year builtnewer than200175% of homes91% of homes

About 12240 Sumner St

How much is 12240 Sumner St, Lemont, IL worth?

The TopHap Estimate for 12240 Sumner St, Lemont, IL is $420,883 as of Sep 24, 2026. The likely range is $383,727 to $458,039. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 12240 Sumner St, Lemont, IL last sell?

12240 Sumner St, Lemont, IL last sold on Feb 25, 2002 for $223,500, according to the county's recorded deed.

How big is 12240 Sumner St, Lemont, IL?

12240 Sumner St, Lemont, IL has 3 bedrooms, 3 bathrooms, 1,714 square feet of living space and a 0.09-acre lot.

When was 12240 Sumner St, Lemont, IL built?

12240 Sumner St, Lemont, IL was built in 2001, making it 25 years old. It is a modern home. The building has 2 stories.

What schools serve 12240 Sumner St, Lemont, IL?

12240 Sumner St, Lemont, IL is assigned to Lemont Township High School (high), rated A+; Oakwood School (elementary); Old Quarry Middle School (middle), rated A+. All sit in Lemont Township High School District 210. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 12240 Sumner St, Lemont, IL compare to other homes in Lemont 60439?

Among the 9,067 homes in Lemont 60439, it is worth more than 20% of them ($420,883 against a typical $594,901), its price per square foot is higher than 37% of them ($246 against a typical $259), it is bigger than 28% of them (1,714 ft² against a typical 2,314 ft²), its lot is bigger than 7% of them (3,920 ft² against a typical 0.28 ac) and it is newer than 75% of them (2001 against a typical 1993). Measured against all of Cook County, it is worth more than 66% 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 12240 Sumner St, Lemont, IL?

The 2023 property tax bill for 12240 Sumner St, Lemont, IL was $7,000. The county assessed it at $37,000.

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