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Single Family ResidenceResidential
$355,692$100 / 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 77How 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
Last sold for $350,000 on Dec 10, 2001

20047 KEYSTONE AVE

MATTESON, IL 60443
4
Beds
2.5
Baths
3,554 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.
1.1 ac
Lot SizeThe size of the land the home sits on, from county records.
1998
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

$356K
$272K low$439K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$350,000 · Dec 10, 2001

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$13,725 (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.$36,000 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$6,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$30,000
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$36,000
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$360,000

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.50
56
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
10
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
71
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.
40
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.19 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.Single Family Residence
CountyCOOK
Effective Year BuiltAn adjusted build year that accounts for condition and major remodels. A big renovation can make a home count as newer than it is.2001
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.Asphalt
HeatingThe type of heating system in the home.Yes
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
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(1)

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.

H
Rich Township High SchoolF
High · Grades 9–12 · 0.5 mi
E
Arcadia Elementary SchoolC-
Elementary · Grades KG–4 · 1.0 mi
M
O W Huth Middle SchoolD+
Middle · Grades 7–8 · 1.6 mi

District: Matteson Elementary School District 162

Neighborhood · ZIP 60443These 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.69
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.101
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.42

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.22%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.11%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.4%
PopulationHow many people live in this area.21,653
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,584 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$93,069
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$118,762
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

20047 Keystone 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 81% of homes in Matteson 60443
  • Costs less per square foot than 98% of homes in Matteson 60443
  • Bigger than 97% of homes in Matteson 60443
  • Has a bigger lot than 91% of homes in Matteson 60443
  • Newer than 87% of homes in Cook County

What homes are worth in Matteson 60443

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

This home
$119K$465K

This home is worth more than 81% of homes in Matteson 60443.

How it measures up in Matteson 60443

The dot is this home. The mark in the middle is the typical home in Matteson 60443.

Estimated value$355,692
CheaperTypical $254,398Pricier

Pricier than 81% of homes nearby

Price per ft²$100
CheaperTypical $145Pricier

Pricier than 2% of homes nearby

Living area3,554 ft²
SmallerTypical 1,737 ft²Bigger

Bigger than 97% of homes nearby

Lot size1.1 ac
SmallerTypical 0.21 acBigger

Bigger than 91% of homes nearby

Year built1998
OlderTypical 1984Newer

Newer than 64% of homes nearby

How 20047 Keystone Ave ranks against every home in each area.
MeasureThis homeMatteson 60443Cook County
Estimated valuepricier than$355,69281% of homes54% of homes
Price per ft²pricier than$1002% of homes4% of homes
Living areabigger than3,554 ft²97% of homes93% of homes
Lot sizebigger than1.1 ac91% of homes88% of homes
Year builtnewer than199864% of homes87% of homes

About 20047 Keystone Ave

How much is 20047 Keystone Ave, Matteson, IL worth?

The TopHap Estimate for 20047 Keystone Ave, Matteson, IL is $355,692 as of Oct 21, 2026. The likely range is $272,289 to $439,095. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 20047 Keystone Ave, Matteson, IL last sell?

20047 Keystone Ave, Matteson, IL last sold on Dec 10, 2001 for $350,000, according to the county's recorded deed.

How big is 20047 Keystone Ave, Matteson, IL?

20047 Keystone Ave, Matteson, IL has 4 bedrooms, 2.5 bathrooms and 3,554 square feet of living space.

When was 20047 Keystone Ave, Matteson, IL built?

20047 Keystone Ave, Matteson, IL was built in 1998, making it 28 years old. The building has 2 stories.

What schools serve 20047 Keystone Ave, Matteson, IL?

20047 Keystone Ave, Matteson, IL is assigned to Rich Township High School (high), rated F; Arcadia Elementary School (elementary), rated C-; O W Huth Middle School (middle), rated D+. All sit in Matteson Elementary School District 162. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 20047 Keystone Ave, Matteson, IL compare to other homes in Matteson 60443?

Among the 6,569 homes in Matteson 60443, it is worth more than 81% of them ($355,692 against a typical $254,398), its price per square foot is higher than 2% of them ($100 against a typical $145), it is bigger than 97% of them (3,554 ft² against a typical 1,737 ft²), its lot is bigger than 91% of them (1.1 ac against a typical 0.21 ac) and it is newer than 64% of them (1998 against a typical 1984). 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 20047 Keystone Ave, Matteson, IL?

The 2023 property tax bill for 20047 Keystone Ave, Matteson, IL was $13,725. The county assessed it at $36,000.

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