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Single Family ResidenceResidential
$448,656$125 / 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 Sep 24, 2026
Last sold for $400,000 on Oct 17, 2022

18320 HARPER ST

LANSING, IL 60438
4
Beds
3
Baths
3,603 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.
0.43 ac
Lot SizeThe size of the land the home sits on, from county records.
1997
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.
4
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$449K
$426K low$471K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$400,000 · Oct 17, 2022

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$12,181 (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.$38,000 (2024)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$7,560
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$30,440
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$38,000
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$380,000

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.40
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
16
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.
72
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
40
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
StyleThe architectural style of the home, such as ranch or colonial.Split Level
CountyCook
Lot (acres)The size of the land the home sits on, from county records.0.43
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
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

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.

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

E
Wolcott SchoolC+
Elementary · Grades PK–8 · 1.9 mi
H
Thornwood High SchoolD
High · Grades 9–12 · 2.0 mi

District: Thornton School District 154

Neighborhood · ZIP 60438These 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.81
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.105
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.41

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.94%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.17%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.14%
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.29,449
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.3,312 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$75,865
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$91,372
Average tempThe average temperature here across a full year.50°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

18320 Harper 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.

  • Among the most valuable homes in Lansing 60438
  • Costs less per square foot than 92% of homes in Cook County
  • Bigger than 98% of homes in Lansing 60438
  • Has a bigger lot than 88% of homes in Lansing 60438
  • Newer than 97% of homes in Lansing 60438

What homes are worth in Lansing 60438

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

This home
$72K$386K

This home is worth more than almost all homes in Lansing 60438.

How it measures up in Lansing 60438

The dot is this home. The mark in the middle is the typical home in Lansing 60438.

Estimated value$448,656
CheaperTypical $191,263Pricier

Pricier than almost all homes nearby

Price per ft²$125
CheaperTypical $154Pricier

Pricier than 16% of homes nearby

Living area3,603 ft²
SmallerTypical 1,217 ft²Bigger

Bigger than 98% of homes nearby

Lot size0.43 ac
SmallerTypical 0.17 acBigger

Bigger than 88% of homes nearby

Year built1997
OlderTypical 1960Newer

Newer than 97% of homes nearby

How 18320 Harper St ranks against every home in each area.
MeasureThis homeLansing 60438Cook County
Estimated valuepricier than$448,656almost all homes71% of homes
Price per ft²pricier than$12516% of homes8% of homes
Living areabigger than3,603 ft²98% of homes93% of homes
Lot sizebigger than0.43 ac88% of homes80% of homes
Year builtnewer than199797% of homes87% of homes

About 18320 Harper St

How much is 18320 Harper St, Lansing, IL worth?

The TopHap Estimate for 18320 Harper St, Lansing, IL is $448,656 as of Sep 24, 2026. The likely range is $425,828 to $471,484. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 18320 Harper St, Lansing, IL last sell?

18320 Harper St, Lansing, IL last sold on Oct 17, 2022 for $400,000, according to the county's recorded deed.

How big is 18320 Harper St, Lansing, IL?

18320 Harper St, Lansing, IL has 4 bedrooms, 3 bathrooms, 3,603 square feet of living space and a 0.43-acre lot.

When was 18320 Harper St, Lansing, IL built?

18320 Harper St, Lansing, IL was built in 1997, making it 29 years old. It is a split level home. The building has 2 stories.

What schools serve 18320 Harper St, Lansing, IL?

18320 Harper St, Lansing, IL is assigned to Wolcott School (elementary), rated C+; Thornwood High School (high), rated D. All sit in Thornton School District 154. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 18320 Harper St, Lansing, IL compare to other homes in Lansing 60438?

Among the 10,594 homes in Lansing 60438, it is worth more than almost all of them ($448,656 against a typical $191,263), its price per square foot is higher than 16% of them ($125 against a typical $154), it is bigger than 98% of them (3,603 ft² against a typical 1,217 ft²), its lot is bigger than 88% of them (0.43 ac against a typical 0.17 ac) and it is newer than 97% of them (1997 against a typical 1960). Measured against all of Cook County, it is worth more than 71% 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 18320 Harper St, Lansing, IL?

The 2023 property tax bill for 18320 Harper St, Lansing, IL was $12,181. The county assessed it at $38,000.

More homes on Harper St

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Assigned schools

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