Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$410,554$197 / 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 90How 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 $194,000 on May 13, 1999

603 FOREST AVE

OSWEGO, IL 60543
4
Beds
3 / 1
Baths
2,079 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.
0.26 ac
Lot SizeThe size of the land the home sits on, from county records.
1999
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

$411K
$369K low$452K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$194,000 · May 13, 1999

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$8,756 (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.$114,802 (2024)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$19,178
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$95,624
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$114,802
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$344,406

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.13
41
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
1
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.9 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%
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.Single Family Residence
CountyKendall
Lot (acres)The size of the land the home sits on, from county records.0.26
ConstructionThe main material the home's frame and walls are built from.Brick
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Gas
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(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
Prairie Point Elementary SchoolB+
Elementary · Grades KG–5 · 0.6 mi
H
Oswego High SchoolA-
High · Grades 9–12 · 0.9 mi
M
Traughber Junior High SchoolB-
Middle · Grades 6–8 · 1.2 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

Do you own this home?
Claim this home

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

603 Forest 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.

What homes are worth in Oswego 60543

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

This home
$189K$724K

This home is worth more than 49% 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.

Estimated value$410,554
CheaperTypical $413,980Pricier

Pricier than 49% of homes nearby

Price per ft²$197
CheaperTypical $194Pricier

Pricier than 54% of homes nearby

Living area2,079 ft²
SmallerTypical 2,126 ft²Bigger

Bigger than 48% of homes nearby

Lot size0.26 ac
SmallerTypical 0.25 acBigger

Bigger than 60% of homes nearby

Year built1999
OlderTypical 2001Newer

Newer than 45% of homes nearby

How 603 Forest Ave ranks against every home in each area.
MeasureThis homeOswego 60543Kendall County
Estimated valuepricier than$410,55449% of homes58% of homes
Price per ft²pricier than$19754% of homes55% of homes
Living areabigger than2,079 ft²48% of homes54% of homes
Lot sizebigger than0.26 ac60% of homes57% of homes
Year builtnewer than199945% of homes37% of homes

About 603 Forest Ave

How much is 603 Forest Ave, Oswego, IL worth?

The TopHap Estimate for 603 Forest Ave, Oswego, IL is $410,554 as of Aug 30, 2026. The likely range is $369,205 to $451,903. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 603 Forest Ave, Oswego, IL last sell?

603 Forest Ave, Oswego, IL last sold on May 13, 1999 for $194,000, according to the county's recorded deed.

How big is 603 Forest Ave, Oswego, IL?

603 Forest Ave, Oswego, IL has 4 bedrooms, 3 bathrooms, 2,079 square feet of living space and a 0.26-acre lot.

When was 603 Forest Ave, Oswego, IL built?

603 Forest Ave, Oswego, IL was built in 1999, making it 27 years old. The building has 2 stories.

What schools serve 603 Forest Ave, Oswego, IL?

603 Forest Ave, Oswego, IL is assigned to Prairie Point Elementary School (elementary), rated B+; Oswego High School (high), rated A-; Traughber Junior High School (middle), 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 603 Forest Ave, Oswego, IL compare to other homes in Oswego 60543?

Among the 13,625 homes in Oswego 60543, it is worth more than 49% of them ($410,554 against a typical $413,980), its price per square foot is higher than 54% of them ($197 against a typical $194), it is bigger than 48% of them (2,079 ft² against a typical 2,126 ft²), its lot is bigger than 60% of them (0.26 ac against a typical 0.25 ac) and it is newer than 45% of them (1999 against a typical 2001). Measured against all of Kendall County, it is worth more than 58% 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 603 Forest Ave, Oswego, IL?

The 2024 property tax bill for 603 Forest Ave, Oswego, IL was $8,756. The county assessed it at $114,802.

More homes on Forest Ave

Closest homes

More homes in Oswego 60543

Assigned schools

Explore the area

See this home in context

Open 603 Forest Ave on TopHap’s interactive map to compare it against every sale nearby, overlay school zones and flood risk, and run a CMA.

Open in map
A flyover of TopHap's photorealistic 3D map, with recorded sale prices pinned to homes
Search any address, city, zip, or county…3D$1.9M$6.25MOpen in map