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Single Family ResidenceResidential
$996,605$229 / 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 94How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Aug 30, 2026
Last sold for $585,000 on May 23, 2011

20818 N BUFFALO RUN

KILDEER, IL 60047
4.5
Baths
4,358 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.
1.06 ac
Lot SizeThe size of the land the home sits on, from county records.
1969
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
1
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$997K
$933K low$1.1M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$585,000 · May 23, 2011

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$17,871 (2024)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$259,919 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$40,549
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$219,370
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$241,689
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$779,835

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyLAKE
Lot (acres)The size of the land the home sits on, from county records.1.06
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
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.DeckPatio · 588 ft²Porch · 204 ft²

Transaction History(7)

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
Isaac Fox Elementary SchoolA+
Elementary · Grades KG–5 · 1.7 mi
M
Lake Zurich Middle School SouthA
Middle · Grades 6–8 · 1.8 mi
H
Lake Zurich High SchoolA-
High · Grades 9–12 · 3.1 mi

District: Lake Zurich Community Unit School District 95

Neighborhood · ZIP 60047These 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.42
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.115
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.40

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.37%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.3.2%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.8%
PopulationHow many people live in this area.44,193
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,228 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$163,809
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$194,449
Average tempThe average temperature here across a full year.48°F
Annual precipHow much rain and melted snow falls here in a typical year.36 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

20818 N Buffalo Run 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 91% of homes in Lake County
  • Costs less per square foot than 83% of homes in Lake Zurich 60047
  • Bigger than 96% of homes in Lake County
  • Has a bigger lot than 93% of homes in Lake County
  • Older than 85% of homes in Lake Zurich 60047

What homes are worth in Lake Zurich 60047

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

This home
$292K$1.5M

This home is worth more than 85% of homes in Lake Zurich 60047.

How it measures up in Lake Zurich 60047

The dot is this home. The mark in the middle is the typical home in Lake Zurich 60047.

Estimated value$996,605
CheaperTypical $678,931Pricier

Pricier than 85% of homes nearby

Price per ft²$229
CheaperTypical $263Pricier

Pricier than 17% of homes nearby

Living area4,358 ft²
SmallerTypical 2,526 ft²Bigger

Bigger than 90% of homes nearby

Lot size1.06 ac
SmallerTypical 0.34 acBigger

Bigger than 82% of homes nearby

Year built1969
OlderTypical 1988Newer

Newer than 15% of homes nearby

How 20818 N Buffalo Run ranks against every home in each area.
MeasureThis homeLake Zurich 60047Lake County
Estimated valuepricier than$996,60585% of homes91% of homes
Price per ft²pricier than$22917% of homes48% of homes
Living areabigger than4,358 ft²90% of homes96% of homes
Lot sizebigger than1.06 ac82% of homes93% of homes
Year builtnewer than196915% of homes34% of homes

About 20818 N Buffalo Run

How much is 20818 N Buffalo Run, Kildeer, IL worth?

The TopHap Estimate for 20818 N Buffalo Run, Kildeer, IL is $996,605 as of Aug 30, 2026. The likely range is $932,979 to $1,060,231. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 20818 N Buffalo Run, Kildeer, IL last sell?

20818 N Buffalo Run, Kildeer, IL last sold on May 23, 2011 for $585,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 20818 N Buffalo Run, Kildeer, IL?

20818 N Buffalo Run, Kildeer, IL has 4.5 bathrooms, 4,358 square feet of living space and a 1.06-acre lot.

When was 20818 N Buffalo Run, Kildeer, IL built?

20818 N Buffalo Run, Kildeer, IL was built in 1969, making it 57 years old. The building has 1 story.

What schools serve 20818 N Buffalo Run, Kildeer, IL?

20818 N Buffalo Run, Kildeer, IL is assigned to Isaac Fox Elementary School (elementary), rated A+; Lake Zurich Middle School South (middle), rated A; Lake Zurich High School (high), rated A-. All sit in Lake Zurich Community Unit School District 95. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 20818 N Buffalo Run, Kildeer, IL compare to other homes in Lake Zurich 60047?

Among the 14,827 homes in Lake Zurich 60047, it is worth more than 85% of them ($996,605 against a typical $678,931), its price per square foot is higher than 17% of them ($229 against a typical $263), it is bigger than 90% of them (4,358 ft² against a typical 2,526 ft²), its lot is bigger than 82% of them (1.06 ac against a typical 0.34 ac) and it is newer than 15% of them (1969 against a typical 1988). Measured against all of Lake County, it is worth more than 91% 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 20818 N Buffalo Run, Kildeer, IL?

The 2024 property tax bill for 20818 N Buffalo Run, Kildeer, IL was $17,871. The county assessed it at $259,919.

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