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Single Family ResidenceResidential
$1,685,126$356 / 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 Sep 24, 2026
Last sold for $1,100,000 on Jul 7, 2015

8400 OAK KNOLL DR

BURR RIDGE, IL 60527
4
Beds
4.5
Baths
4,738 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 ac
Lot SizeThe size of the land the home sits on, from county records.
1986
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
9
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

$1.7M
$1.6M low$1.8M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$1,100,000 · Jul 7, 2015

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$28,951 (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.$125,009 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$62,509
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$62,500
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$125,009
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$1,250,090

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.62
97
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.
71
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.
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.111 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.51%
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
CountyCOOK
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(3)

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
Pleasantdale Elementary SchoolA+
Elementary · Grades PK–4 · 0.9 mi
M
Pleasantdale Middle SchoolA+
Middle · Grades 5–8 · 1.6 mi
H
Lyons Township High SchoolA
High · Grades 9–12 · 5.6 mi

District: Pleasantdale School District 107

Neighborhood · ZIP 60527These 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.96
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.117
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.48

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.30%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.8.8%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.3%
PopulationHow many people live in this area.31,289
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,890 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$124,731
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$169,490
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

8400 Oak Knoll Dr 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 98% of homes in Cook County
  • Costs more per square foot than 85% of homes in Willowbrook 60527
  • Bigger than 96% of homes in Cook County
  • Has a bigger lot than 95% of homes in Cook County
  • Newer than 80% of homes in Cook County

What homes are worth in Willowbrook 60527

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

This home
$141K$2.2M

This home is worth more than 94% of homes in Willowbrook 60527.

How it measures up in Willowbrook 60527

The dot is this home. The mark in the middle is the typical home in Willowbrook 60527.

Estimated value$1,685,126
CheaperTypical $555,548Pricier

Pricier than 94% of homes nearby

Price per ft²$356
CheaperTypical $266Pricier

Pricier than 85% of homes nearby

Living area4,738 ft²
SmallerTypical 1,850 ft²Bigger

Bigger than 93% of homes nearby

Lot size5 ac
SmallerTypical 0.65 acBigger

Bigger than 72% of homes nearby

Year built1986
OlderTypical 1979Newer

Newer than 67% of homes nearby

How 8400 Oak Knoll Dr ranks against every home in each area.
MeasureThis homeWillowbrook 60527Cook County
Estimated valuepricier than$1,685,12694% of homes98% of homes
Price per ft²pricier than$35685% of homes83% of homes
Living areabigger than4,738 ft²93% of homes96% of homes
Lot sizebigger than5 ac72% of homes95% of homes
Year builtnewer than198667% of homes80% of homes

About 8400 Oak Knoll Dr

How much is 8400 Oak Knoll Dr, Burr Ridge, IL worth?

The TopHap Estimate for 8400 Oak Knoll Dr, Burr Ridge, IL is $1,685,126 as of Sep 24, 2026. The likely range is $1,587,831 to $1,782,421. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 8400 Oak Knoll Dr, Burr Ridge, IL last sell?

8400 Oak Knoll Dr, Burr Ridge, IL last sold on Jul 7, 2015 for $1,100,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 8400 Oak Knoll Dr, Burr Ridge, IL?

8400 Oak Knoll Dr, Burr Ridge, IL has 4 bedrooms, 4.5 bathrooms and 4,738 square feet of living space.

When was 8400 Oak Knoll Dr, Burr Ridge, IL built?

8400 Oak Knoll Dr, Burr Ridge, IL was built in 1986, making it 40 years old. The building has 2 stories.

What schools serve 8400 Oak Knoll Dr, Burr Ridge, IL?

8400 Oak Knoll Dr, Burr Ridge, IL is assigned to Pleasantdale Elementary School (elementary), rated A+; Pleasantdale Middle School (middle), rated A+; Lyons Township High School (high), rated A. All sit in Pleasantdale School District 107. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 8400 Oak Knoll Dr, Burr Ridge, IL compare to other homes in Willowbrook 60527?

Among the 11,210 homes in Willowbrook 60527, it is worth more than 94% of them ($1,685,126 against a typical $555,548), its price per square foot is higher than 85% of them ($356 against a typical $266), it is bigger than 93% of them (4,738 ft² against a typical 1,850 ft²), its lot is bigger than 72% of them (5 ac against a typical 0.65 ac) and it is newer than 67% of them (1986 against a typical 1979). Measured against all of Cook County, it is worth more than 98% 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 8400 Oak Knoll Dr, Burr Ridge, IL?

The 2023 property tax bill for 8400 Oak Knoll Dr, Burr Ridge, IL was $28,951. The county assessed it at $125,009.

More homes on Oak Knoll Dr

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Assigned schools

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