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Single Family ResidenceResidential
$598,618$217 / 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 92How 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 $580,000 on Dec 15, 2025

640 DOWNEY ST

HOFFMAN ESTATES, IL 60169
4
Beds
5 / 2
Baths
2,762 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.
0.18 ac
Lot SizeThe size of the land the home sits on, from county records.
1994
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.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$599K
$548K low$649K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$580,000 · Dec 15, 2025

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$11,580 (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.$67,000 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$12,678
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$54,322
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$43,704
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$670,000

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.46
66
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
15
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
60
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
65
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
28
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.13 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.51%

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
Lot (acres)The size of the land the home sits on, from county records.0.18
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(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
Hoover Math And Science AcademyA
Elementary · Grades KG–6 · 0.4 mi
M
Keller Junior High SchoolA
Middle · Grades 7–8 · 0.8 mi
H
Schaumburg High SchoolA
High · Grades 9–12 · 0.9 mi

District: Township High School District 211

Neighborhood · ZIP 60169These 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.46
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.118
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.49

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.32%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.5.4%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.9%
PopulationHow many people live in this area.31,251
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.4,616 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$85,626
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$105,871
Average tempThe average temperature here across a full year.48°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

640 Downey 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.

  • Worth more than 97% of homes in Hoffman Estates 60169
  • Costs less per square foot than 71% of homes in Hoffman Estates 60169
  • Bigger than 98% of homes in Hoffman Estates 60169
  • Has a smaller lot than 77% of homes in Hoffman Estates 60169
  • Newer than 98% of homes in Hoffman Estates 60169

What homes are worth in Hoffman Estates 60169

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

This home
$140K$610K

This home is worth more than 97% of homes in Hoffman Estates 60169.

How it measures up in Hoffman Estates 60169

The dot is this home. The mark in the middle is the typical home in Hoffman Estates 60169.

Estimated value$598,618
CheaperTypical $357,176Pricier

Pricier than 97% of homes nearby

Price per ft²$217
CheaperTypical $239Pricier

Pricier than 29% of homes nearby

Living area2,762 ft²
SmallerTypical 1,275 ft²Bigger

Bigger than 98% of homes nearby

Lot size0.18 ac
SmallerTypical 0.23 acBigger

Bigger than 23% of homes nearby

Year built1994
OlderTypical 1971Newer

Newer than 98% of homes nearby

How 640 Downey St ranks against every home in each area.
MeasureThis homeHoffman Estates 60169Cook County
Estimated valuepricier than$598,61897% of homes84% of homes
Price per ft²pricier than$21729% of homes38% of homes
Living areabigger than2,762 ft²98% of homes86% of homes
Lot sizebigger than0.18 ac23% of homes59% of homes
Year builtnewer than199498% of homes86% of homes

About 640 Downey St

How much is 640 Downey St, Hoffman Estates, IL worth?

The TopHap Estimate for 640 Downey St, Hoffman Estates, IL is $598,618 as of Aug 30, 2026. The likely range is $548,117 to $649,118. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 640 Downey St, Hoffman Estates, IL last sell?

640 Downey St, Hoffman Estates, IL last sold on Dec 15, 2025 for $580,000, according to the county's recorded deed.

How big is 640 Downey St, Hoffman Estates, IL?

640 Downey St, Hoffman Estates, IL has 4 bedrooms, 5 bathrooms, 2,762 square feet of living space and a 0.18-acre lot.

When was 640 Downey St, Hoffman Estates, IL built?

640 Downey St, Hoffman Estates, IL was built in 1994, making it 32 years old. The building has 2 stories.

What schools serve 640 Downey St, Hoffman Estates, IL?

640 Downey St, Hoffman Estates, IL is assigned to Hoover Math And Science Academy (elementary), rated A; Keller Junior High School (middle), rated A; Schaumburg High School (high), rated A. All sit in Township High School District 211. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 640 Downey St, Hoffman Estates, IL compare to other homes in Hoffman Estates 60169?

Among the 10,157 homes in Hoffman Estates 60169, it is worth more than 97% of them ($598,618 against a typical $357,176), its price per square foot is higher than 29% of them ($217 against a typical $239), it is bigger than 98% of them (2,762 ft² against a typical 1,275 ft²), its lot is bigger than 23% of them (0.18 ac against a typical 0.23 ac) and it is newer than 98% of them (1994 against a typical 1971). Measured against all of Cook County, it is worth more than 84% 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 640 Downey St, Hoffman Estates, IL?

The 2023 property tax bill for 640 Downey St, Hoffman Estates, IL was $11,580. The county assessed it at $67,000.

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