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Single Family ResidenceResidential
$593,806$402 / 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 $370,000 on May 29, 2018

855 KEYSTONE AVE

NORTHBROOK, IL 60062
3
Beds
2
Baths
1,477 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.
0.19 ac
Lot SizeThe size of the land the home sits on, from county records.
1954
Year BuiltThe year the home was originally built, according to county records.
1
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.
1
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$594K
$561K low$626K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$370,000 · May 29, 2018

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$9,794 (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.$48,000 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$10,260
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$37,740
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$42,869
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$480,000

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.37
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
18
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
61
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
67
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.Bungalow
CountyCOOK
Lot (acres)The size of the land the home sits on, from county records.0.19
ConstructionThe main material the home's frame and walls are built from.Masonry/Concrete Masonry Units (Cmus)
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.

E
Greenbrier Elementary SchoolA+
Elementary · Grades KG–5 · 0.6 mi
M
Northbrook Junior High SchoolA+
Middle · Grades 6–8 · 0.9 mi
H
Glenbrook North High SchoolA+
High · Grades 9–12 · 1.8 mi

District: Northfield Township High School District 225

Neighborhood · ZIP 60062These 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.47
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.125
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.43

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.93%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.33%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.4.7%
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.42,768
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,318 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$144,533
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$185,334
Average tempThe average temperature here across a full year.49°F
Annual precipHow much rain and melted snow falls here in a typical year.37 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

855 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 83% of homes in Cook County
  • Costs more per square foot than 90% of homes in Cook County
  • Smaller than 84% of homes in Northbrook 60062
  • Has a smaller lot than 79% of homes in Northbrook 60062
  • Older than 90% of homes in Northbrook 60062

What homes are worth in Northbrook 60062

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

This home
$222K$2M

This home is worth more than 36% of homes in Northbrook 60062.

How it measures up in Northbrook 60062

The dot is this home. The mark in the middle is the typical home in Northbrook 60062.

Estimated value$593,806
CheaperTypical $728,078Pricier

Pricier than 36% of homes nearby

Price per ft²$402
CheaperTypical $327Pricier

Pricier than 81% of homes nearby

Living area1,477 ft²
SmallerTypical 2,444 ft²Bigger

Bigger than 16% of homes nearby

Lot size0.19 ac
SmallerTypical 0.29 acBigger

Bigger than 21% of homes nearby

Year built1954
OlderTypical 1976Newer

Newer than 10% of homes nearby

How 855 Keystone Ave ranks against every home in each area.
MeasureThis homeNorthbrook 60062Cook County
Estimated valuepricier than$593,80636% of homes83% of homes
Price per ft²pricier than$40281% of homes90% of homes
Living areabigger than1,477 ft²16% of homes51% of homes
Lot sizebigger than0.19 ac21% of homes60% of homes
Year builtnewer than195410% of homes42% of homes

About 855 Keystone Ave

How much is 855 Keystone Ave, Northbrook, IL worth?

The TopHap Estimate for 855 Keystone Ave, Northbrook, IL is $593,806 as of Sep 24, 2026. The likely range is $561,201 to $626,411. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 855 Keystone Ave, Northbrook, IL last sell?

855 Keystone Ave, Northbrook, IL last sold on May 29, 2018 for $370,000, according to the county's recorded deed.

How big is 855 Keystone Ave, Northbrook, IL?

855 Keystone Ave, Northbrook, IL has 3 bedrooms, 2 bathrooms, 1,477 square feet of living space and a 0.19-acre lot.

When was 855 Keystone Ave, Northbrook, IL built?

855 Keystone Ave, Northbrook, IL was built in 1954, making it 72 years old. It is a bungalow home. The building has 1 story.

What schools serve 855 Keystone Ave, Northbrook, IL?

855 Keystone Ave, Northbrook, IL is assigned to Greenbrier Elementary School (elementary), rated A+; Northbrook Junior High School (middle), rated A+; Glenbrook North High School (high), rated A+. All sit in Northfield Township High School District 225. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 855 Keystone Ave, Northbrook, IL compare to other homes in Northbrook 60062?

Among the 16,286 homes in Northbrook 60062, it is worth more than 36% of them ($593,806 against a typical $728,078), its price per square foot is higher than 81% of them ($402 against a typical $327), it is bigger than 16% of them (1,477 ft² against a typical 2,444 ft²), its lot is bigger than 21% of them (0.19 ac against a typical 0.29 ac) and it is newer than 10% of them (1954 against a typical 1976). Measured against all of Cook County, it is worth more than 83% 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 855 Keystone Ave, Northbrook, IL?

The 2023 property tax bill for 855 Keystone Ave, Northbrook, IL was $9,794. The county assessed it at $48,000.

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