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Single Family ResidenceResidential
$358,083$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 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

505 PORTER ST

LEMONT, IL 60439
2
Beds
4 / 1
Baths
1,168 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.
1,835 ft²
Lot SizeThe size of the land the home sits on, from county records.
2016
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

$358K
$306K low$410K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$7,689 (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.$30,000 (2024)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$1,147
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$28,853
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$36,999
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$300,000

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.39
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
6
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.

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
CountyCook
Lot (acres)The size of the land the home sits on, from county records.0.04
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 · 0.2 mi
E
Oakwood School
Elementary · Grades PK–1 · 1.0 mi
M
Old Quarry Middle SchoolA+
Middle · Grades 6–8 · 1.6 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

505 Porter 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 89% of homes in Lemont 60439
  • Costs more per square foot than 81% of homes in Lemont 60439
  • Smaller than 91% of homes in Lemont 60439
  • Among the smallest lots in Lemont 60439
  • Among the newest 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
$254K$1.1M

This home is worth more than 11% 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$358,083
CheaperTypical $594,306Pricier

Pricier than 11% of homes nearby

Price per ft²$307
CheaperTypical $259Pricier

Pricier than 81% of homes nearby

Living area1,168 ft²
SmallerTypical 2,319 ft²Bigger

Bigger than 9% of homes nearby

Lot size1,835 ft²
SmallerTypical 0.28 acBigger

Smaller than almost all homes nearby

Year built2016
OlderTypical 1993Newer

Newer than 92% of homes nearby

How 505 Porter St ranks against every home in each area.
MeasureThis homeLemont 60439Cook County
Estimated valuepricier than$358,08311% of homes54% of homes
Price per ft²pricier than$30781% of homes70% of homes
Living areabigger than1,168 ft²9% of homes29% of homes
Lot sizebigger than1,835 ft²almost no homes2% of homes
Year builtnewer than201692% of homesalmost all homes

About 505 Porter St

How much is 505 Porter St, Lemont, IL worth?

The TopHap Estimate for 505 Porter St, Lemont, IL is $358,083 as of Sep 24, 2026. The likely range is $306,233 to $409,933. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

How big is 505 Porter St, Lemont, IL?

505 Porter St, Lemont, IL has 2 bedrooms, 4 bathrooms, 1,168 square feet of living space and a 0.04-acre lot.

When was 505 Porter St, Lemont, IL built?

505 Porter St, Lemont, IL was built in 2016, making it 10 years old. The building has 2 stories.

What schools serve 505 Porter St, Lemont, IL?

505 Porter 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 505 Porter St, Lemont, IL compare to other homes in Lemont 60439?

Among the 9,105 homes in Lemont 60439, it is worth more than 11% of them ($358,083 against a typical $594,306), its price per square foot is higher than 81% of them ($307 against a typical $259), it is bigger than 9% of them (1,168 ft² against a typical 2,319 ft²), its lot is bigger than almost none of them (1,835 ft² against a typical 0.28 ac) and it is newer than 92% of them (2016 against a typical 1993). Measured against all of Cook County, it is worth more than 54% 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 505 Porter St, Lemont, IL?

The 2023 property tax bill for 505 Porter St, Lemont, IL was $7,689. The county assessed it at $30,000.

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