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Single Family ResidenceResidential
$1,327,367$394 / 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 Sep 24, 2026
Last sold for $1,275,000 on Jun 30, 2025

4340 ROSLYN RD

DOWNERS GROVE, IL 60515
4 / 2
Baths
3,365 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.
0.56 ac
Lot SizeThe size of the land the home sits on, from county records.
2003
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
4
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$1.3M
$1.2M low$1.4M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$1,275,000 · Jun 30, 2025

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$19,217 (2025)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$343,423 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$102,655
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$240,768
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$318,279
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$1,030,269

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyDUPAGE
Lot (acres)The size of the land the home sits on, from county records.0.56
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
CoolingThe type of cooling or air conditioning in the home.Central
FireplaceWhether the home has a fireplace, and what kind.Yes
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(5)

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
Lester Elementary SchoolA-
Elementary · Grades KG–6 · 0.4 mi
H
Community High School District 99 - North High SchoolB
High · Grades 9–12 · 1.3 mi
M
Herrick Middle SchoolA
Middle · Grades 7–8 · 1.5 mi

District: Community High School District 99

Neighborhood · ZIP 60515These 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.117
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.121
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.52

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.34%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.7.2%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.4%
PopulationHow many people live in this area.30,825
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,919 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$111,934
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$153,944
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

4340 Roslyn Rd 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 96% of homes in DuPage County
  • Costs more per square foot than 93% of homes in DuPage County
  • Bigger than 90% of homes in Downers Grove 60515
  • Has a bigger lot than 81% of homes in DuPage County
  • Newer than 92% of homes in DuPage County

What homes are worth in Downers Grove 60515

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

This home
$169K$1.6M

This home is worth more than 94% of homes in Downers Grove 60515.

How it measures up in Downers Grove 60515

The dot is this home. The mark in the middle is the typical home in Downers Grove 60515.

Estimated value$1,327,367
CheaperTypical $545,843Pricier

Pricier than 94% of homes nearby

Price per ft²$394
CheaperTypical $325Pricier

Pricier than 77% of homes nearby

Living area3,365 ft²
SmallerTypical 1,612 ft²Bigger

Bigger than 90% of homes nearby

Lot size0.56 ac
SmallerTypical 0.27 acBigger

Bigger than 75% of homes nearby

Year built2003
OlderTypical 1968Newer

Newer than 87% of homes nearby

How 4340 Roslyn Rd ranks against every home in each area.
MeasureThis homeDowners Grove 60515DuPage County
Estimated valuepricier than$1,327,36794% of homes96% of homes
Price per ft²pricier than$39477% of homes93% of homes
Living areabigger than3,365 ft²90% of homes89% of homes
Lot sizebigger than0.56 ac75% of homes81% of homes
Year builtnewer than200387% of homes92% of homes

About 4340 Roslyn Rd

How much is 4340 Roslyn Rd, Downers Grove, IL worth?

The TopHap Estimate for 4340 Roslyn Rd, Downers Grove, IL is $1,327,367 as of Sep 24, 2026. The likely range is $1,214,680 to $1,440,054. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 4340 Roslyn Rd, Downers Grove, IL last sell?

4340 Roslyn Rd, Downers Grove, IL last sold on Jun 30, 2025 for $1,275,000, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 4340 Roslyn Rd, Downers Grove, IL?

4340 Roslyn Rd, Downers Grove, IL has 4 bathrooms, 3,365 square feet of living space and a 0.56-acre lot.

When was 4340 Roslyn Rd, Downers Grove, IL built?

4340 Roslyn Rd, Downers Grove, IL was built in 2003, making it 23 years old. The building has 2 stories.

What schools serve 4340 Roslyn Rd, Downers Grove, IL?

4340 Roslyn Rd, Downers Grove, IL is assigned to Lester Elementary School (elementary), rated A-; Community High School District 99 - North High School (high), rated B; Herrick Middle School (middle), rated A. All sit in Community High School District 99. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 4340 Roslyn Rd, Downers Grove, IL compare to other homes in Downers Grove 60515?

Among the 11,004 homes in Downers Grove 60515, it is worth more than 94% of them ($1,327,367 against a typical $545,843), its price per square foot is higher than 77% of them ($394 against a typical $325), it is bigger than 90% of them (3,365 ft² against a typical 1,612 ft²), its lot is bigger than 75% of them (0.56 ac against a typical 0.27 ac) and it is newer than 87% of them (2003 against a typical 1968). Measured against all of DuPage County, it is worth more than 96% 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 4340 Roslyn Rd, Downers Grove, IL?

The 2025 property tax bill for 4340 Roslyn Rd, Downers Grove, IL was $19,217. The county assessed it at $343,423.

More homes on Roslyn Rd

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More homes in Downers Grove 60515

Assigned schools

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