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Single Family ResidenceResidential
$252,109$307 / 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 92How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Oct 21, 2026

12257 NEW AVE

LEMONT, IL 60439
1
Baths
820 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.
5.92 ac
Lot SizeThe size of the land the home sits on, from county records.
1957
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$252K
$233K low$271K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$15,125 (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.$223,101 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$191,896
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$31,205
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$206,193
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$669,303

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.50
35
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
28
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.
73
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.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.1 percent flood zone

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.5.92
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

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.

M
Oak Prairie Junior High SchoolA
Middle · Grades 6–8 · 3.9 mi
E
Walsh Elementary School
Elementary · Grades PK–1 · 4.2 mi
H
Lockport Township High SchoolB
High · Grades 9–12 · 5.2 mi

District: Will County School District 92

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

12257 New 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 less than 98% of homes in Lemont 60439
  • Costs more per square foot than 96% of homes in Will County
  • Among the smallest homes in Lemont 60439
  • Among the largest lots in Lemont 60439
  • Older than 86% of homes in Lemont 60439

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
$247K$1.1M

This home is worth more than 2% 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$252,109
CheaperTypical $595,956Pricier

Pricier than 2% of homes nearby

Price per ft²$307
CheaperTypical $261Pricier

Pricier than 80% of homes nearby

Living area820 ft²
SmallerTypical 2,340 ft²Bigger

Smaller than almost all homes nearby

Lot size5.92 ac
SmallerTypical 0.28 acBigger

Bigger than almost all homes nearby

Year built1957
OlderTypical 1993Newer

Newer than 14% of homes nearby

How 12257 New Ave ranks against every home in each area.
MeasureThis homeLemont 60439Will County
Estimated valuepricier than$252,1092% of homes17% of homes
Price per ft²pricier than$30780% of homes96% of homes
Living areabigger than820 ft²almost no homes3% of homes
Lot sizebigger than5.92 acalmost all homesalmost all homes
Year builtnewer than195714% of homes14% of homes

About 12257 New Ave

How much is 12257 New Ave, Lemont, IL worth?

The TopHap Estimate for 12257 New Ave, Lemont, IL is $252,109 as of Oct 21, 2026. The likely range is $232,978 to $271,240. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 12257 New Ave, Lemont, IL last sell?

12257 New Ave, Lemont, IL last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 12257 New Ave, Lemont, IL?

12257 New Ave, Lemont, IL has 1 bathrooms, 820 square feet of living space and a 5.92-acre lot.

When was 12257 New Ave, Lemont, IL built?

12257 New Ave, Lemont, IL was built in 1957, making it 69 years old. The building has 1 story.

What schools serve 12257 New Ave, Lemont, IL?

12257 New Ave, Lemont, IL is assigned to Oak Prairie Junior High School (middle), rated A; Walsh Elementary School (elementary); Lockport Township High School (high), rated B. All sit in Will County School District 92. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 12257 New Ave, Lemont, IL compare to other homes in Lemont 60439?

Among the 9,120 homes in Lemont 60439, it is worth more than 2% of them ($252,109 against a typical $595,956), its price per square foot is higher than 80% of them ($307 against a typical $261), it is bigger than almost none of them (820 ft² against a typical 2,340 ft²), its lot is bigger than almost all of them (5.92 ac against a typical 0.28 ac) and it is newer than 14% of them (1957 against a typical 1993). Measured against all of Will County, it is worth more than 17% 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 12257 New Ave, Lemont, IL?

The 2025 property tax bill for 12257 New Ave, Lemont, IL was $15,125. The county assessed it at $223,101.

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