Commercial (General)Commercial
Last sold for $10,500,000 on Aug 22, 2025
4390 STATE ROUTE 71
OSWEGO, IL 60543
0
Baths
39,772 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.
1.62 ac
Lot SizeThe size of the land the home sits on, from county records.
1972
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
50
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
Valuation
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$10,500,000 · Aug 22, 2025
Tax & Assessment
Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$56,527 (2024)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$702,440 (2024)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$65,288
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$637,152
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$702,440
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$2,107,322
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.11
10
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
22
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
27
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.6 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.6%
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.minimal
Scores 0–100; higher = greater projected risk.
Property Facts
Property TypeThe broad category the county puts this property in, such as residential or commercial.Commercial (General)
CountyKendall
Lot (acres)The size of the land the home sits on, from county records.1.62
ConstructionThe main material the home's frame and walls are built from.Brick
HeatingThe type of heating system in the home.None
PoolWhether the property has a pool, and what kind, such as in-ground.No
Transaction History(6)
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.
HME
Oswego High SchoolB-
High · Grades 9–12 · 0.4 mi
Traughber Junior High SchoolB
Middle · Grades 6–8 · 0.9 mi
Southbury Elementary SchoolB+
Elementary · Grades KG–5 · 1.0 mi
District: Oswego Community Unit School District 308
Neighborhood · ZIP 60543These 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.72
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.88
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.51
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.97%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.24%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.3.1%
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.49,227
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,097 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$116,485
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$134,927
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%
Owner Tools
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Claim this homeData 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
4390 State Route 71 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 largest homes in Oswego 60543
- Has a bigger lot than 96% of homes in Oswego 60543
- Older than 87% of homes in Oswego 60543
How it measures up in Oswego 60543
The dot is this home. The mark in the middle is the typical home in Oswego 60543.
Living area39,772 ft²
SmallerTypical 2,124 ft²Bigger
Bigger than almost all homes nearby
Lot size1.62 ac
SmallerTypical 0.25 acBigger
Bigger than 96% of homes nearby
Year built1972
OlderTypical 2001Newer
Newer than 13% of homes nearby
| Measure | This home | Oswego 60543 | Kendall County |
|---|---|---|---|
| Living areabigger than | 39,772 ft² | almost all homes | almost all homes |
| Lot sizebigger than | 1.62 ac | 96% of homes | 95% of homes |
| Year builtnewer than | 1972 | 13% of homes | 16% of homes |
About 4390 State Route 71
When did 4390 State Route 71, Oswego, IL last sell?
4390 State Route 71, Oswego, IL last sold on Aug 22, 2025 for $10,500,000, according to the county's recorded deed. TopHap holds 4 recorded sales for this parcel.
How big is 4390 State Route 71, Oswego, IL?
4390 State Route 71, Oswego, IL has 39,772 square feet of living space and a 1.62-acre lot.
When was 4390 State Route 71, Oswego, IL built?
4390 State Route 71, Oswego, IL was built in 1972, making it 54 years old. The building has 1 story.
What schools serve 4390 State Route 71, Oswego, IL?
4390 State Route 71, Oswego, IL is assigned to Oswego High School (high), rated B-; Traughber Junior High School (middle), rated B; Southbury Elementary School (elementary), rated B+. All sit in Oswego Community Unit School District 308. Attendance boundaries change — confirm with the district before relying on an assignment.
How does 4390 State Route 71, Oswego, IL compare to other homes in Oswego 60543?
Among the 13,625 homes in Oswego 60543, it is bigger than almost all of them (39,772 ft² against a typical 2,124 ft²), its lot is bigger than 96% of them (1.62 ac against a typical 0.25 ac) and it is newer than 13% of them (1972 against a typical 2001). These shares are recounted nightly from the full county assessor record for each area, not from active listings.
What are the property taxes on 4390 State Route 71, Oswego, IL?
The 2024 property tax bill for 4390 State Route 71, Oswego, IL was $56,527. The county assessed it at $702,440.
More homes on State Route 71
- 4450 State Route 71$275K2 bd · 1 ba · 1,176 ft² · Sold $274K · Dec 2025
- 4490 State Route 712 bd · 2 ba · 1,200 ft² · Sold Oct 2024
- 5951 State Route 71$1.4M3 bd · 4 ba · 5,156 ft² · Sold $38K · Dec 2021
- 4424 State Route 71$264K3 bd · 1 ba · 1,232 ft² · Sold $180K · Dec 2020
- 5408 State Route 71$464K4 bd · 2 ba · 3,376 ft² · Sold $319K · Aug 2018
- 5417 State Route 713 bd · 3 ba · 1,772 ft² · Sold $348K · May 2018
- 5417 State Route 710.96 ac · Sold $348K · May 2018
- 5505 State Route 71$591K5 bd · 4 ba · 2,457 ft² · Sold $322K · Aug 2017
- 5535 State Route 71$653K3 bd · 2 ba · 2,320 ft² · Sold $23K · Feb 2012
- 5425 State Route 71 # A$800K4 bd · 3 ba · 2,949 ft² · Sold $580K · Jun 2008
- 5453 State Route 71$485K3 bd · 3 ba · 1,936 ft² · Sold $219K · May 1998
- 5401 State Route 71$738K3 bd · 2 ba · 2,668 ft² · Sold $170K · Aug 1987
Closest homes
- 95 Wilmette Dr$386K190 ft · 2 bd · 1 ba · 2,134 ft² · Sold $285K · Jul 2020
- 85 Wilmette Dr$362K229 ft · 3 bd · 2 ba · 1,856 ft²
- 77 Wilmette Dr$382K296 ft · 3 bd · 3 ba · 1,756 ft²
- 4424 State Route 71$264K261 ft · 3 bd · 1 ba · 1,232 ft² · Sold $180K · Dec 2020
- 71 Wilmette Dr$406K368 ft · 3 bd · 2 ba · 1,718 ft²
- 4450 State Route 71$275K338 ft · 2 bd · 1 ba · 1,176 ft² · Sold $274K · Dec 2025
- 88 Wilmette Dr$339K446 ft · 3 bd · 1 ba · 1,650 ft² · Sold $215K · Oct 2001
- 280 Calumet St$287K463 ft · 3 bd · 1 ba · 1,176 ft² · Sold $108K · May 1993
More homes in Oswego 60543
- 305 Kensington Dr$450K4 bd · 2.5 ba · 2,656 ft² · Sold $450K · Oct 2026
- 329 Millstream Ln$453K3 bd · 2.5 ba · 2,152 ft² · Sold $450K · Oct 2026
- 47 Pasadena Dr$355K3 bd · 1 ba · 1,098 ft² · Sold $355K · Oct 2026
- 784 Bellevue Cir$350K2 bd · 2 ba · 1,655 ft² · Sold $350K · Oct 2026
- 128 Laurie Ln$299K2 ba · 1,376 ft² · Sold $305K · Oct 2026
- 39 Park St$265K3 bd · 2 ba · 1,398 ft² · Sold $225K · Oct 2026
- 28 Tomahawk Trl$590K3 bd · 2 ba · 1,594 ft² · Sold $590K · Oct 2026
- 364 Ogden Falls Blvd$335K3 bd · 2.5 ba · 1,400 ft² · Sold $335K · Oct 2026
- 661 Lincoln Station Dr$280K3 bd · 2.5 ba · 1,334 ft² · Sold $273K · Oct 2026
- 606 Berkshire Ct$400K3 bd · 2.5 ba · 1,616 ft² · Sold $410K · Oct 2026
- 240 Paradise Pkwy$454K4 bd · 2.5 ba · 2,223 ft² · Sold $450K · Oct 2026
- 506 Parkland Ct$364K2 bd · 2 ba · 1,947 ft² · Sold $390K · Oct 2026
Assigned schools
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