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Single Family ResidenceResidential
$1,249,000$432 / 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 Aug 30, 2026
Last sold for $389,500 on Feb 11, 2025

421 W OLIVE AVE

PROSPECT HEIGHTS, IL 60070
3
Beds
3
Baths
2,893 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.
0.61 ac
Lot SizeThe size of the land the home sits on, from county records.
2020
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
7
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

$1.2M
$1.2M low$1.3M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$389,500 · Feb 11, 2025

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$15,224 (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.$67,500 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$13,290
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$54,210
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$53,969
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$675,000

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.36
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
6
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
62
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.
45
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
CountyCOOK
Lot (acres)The size of the land the home sits on, from county records.0.61
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(4)

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
Dwight D Eisenhower Elementary School
Elementary · Grades PK–1 · 0.4 mi
H
John Hersey High SchoolA+
High · Grades 9–12 · 0.6 mi
M
Macarthur Middle SchoolA
Middle · Grades 6–8 · 0.7 mi

District: Township High School District 214

Neighborhood · ZIP 60070These 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.82
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.120
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.95%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.27%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.6.8%
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.16,965
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.4,656 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$81,472
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$106,778
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

421 W Olive 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.

  • Among the most valuable homes in Prospect Heights 60070
  • Among the highest price per square foot in Prospect Heights 60070
  • Bigger than 88% of homes in Cook County
  • Has a bigger lot than 84% of homes in Cook County
  • Among the newest homes in Prospect Heights 60070

What homes are worth in Prospect Heights 60070

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

This home
$146K$928K

This home is worth more than almost all homes in Prospect Heights 60070.

How it measures up in Prospect Heights 60070

The dot is this home. The mark in the middle is the typical home in Prospect Heights 60070.

Estimated value$1,249,000
CheaperTypical $366,937Pricier

Pricier than almost all homes nearby

Price per ft²$432
CheaperTypical $241Pricier

Pricier than almost all homes nearby

Living area2,893 ft²
SmallerTypical 1,558 ft²Bigger

Bigger than 85% of homes nearby

Lot size0.61 ac
SmallerTypical 0.95 acBigger

Bigger than 42% of homes nearby

Year built2020
OlderTypical 1970Newer

Newer than almost all homes nearby

How 421 W Olive Ave ranks against every home in each area.
MeasureThis homeProspect Heights 60070Cook County
Estimated valuepricier than$1,249,000almost all homes97% of homes
Price per ft²pricier than$432almost all homes92% of homes
Living areabigger than2,893 ft²85% of homes88% of homes
Lot sizebigger than0.61 ac42% of homes84% of homes
Year builtnewer than2020almost all homesalmost all homes

About 421 W Olive Ave

How much is 421 W Olive Ave, Prospect Heights, IL worth?

The TopHap Estimate for 421 W Olive Ave, Prospect Heights, IL is $1,249,000 as of Aug 30, 2026. The likely range is $1,181,260 to $1,316,740. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 421 W Olive Ave, Prospect Heights, IL last sell?

421 W Olive Ave, Prospect Heights, IL last sold on Feb 11, 2025 for $389,500, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 421 W Olive Ave, Prospect Heights, IL?

421 W Olive Ave, Prospect Heights, IL has 3 bedrooms, 3 bathrooms, 2,893 square feet of living space and a 0.61-acre lot.

When was 421 W Olive Ave, Prospect Heights, IL built?

421 W Olive Ave, Prospect Heights, IL was built in 2020, making it 6 years old. The building has 2 stories.

What schools serve 421 W Olive Ave, Prospect Heights, IL?

421 W Olive Ave, Prospect Heights, IL is assigned to Dwight D Eisenhower Elementary School (elementary); John Hersey High School (high), rated A+; Macarthur Middle School (middle), rated A. All sit in Township High School District 214. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 421 W Olive Ave, Prospect Heights, IL compare to other homes in Prospect Heights 60070?

Among the 5,472 homes in Prospect Heights 60070, it is worth more than almost all of them ($1,249,000 against a typical $366,937), its price per square foot is higher than almost all of them ($432 against a typical $241), it is bigger than 85% of them (2,893 ft² against a typical 1,558 ft²), its lot is bigger than 42% of them (0.61 ac against a typical 0.95 ac) and it is newer than almost all of them (2020 against a typical 1970). Measured against all of Cook County, it is worth more than 97% 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 421 W Olive Ave, Prospect Heights, IL?

The 2023 property tax bill for 421 W Olive Ave, Prospect Heights, IL was $15,224. The county assessed it at $67,500.

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