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Single Family ResidenceResidential
$345,117$322 / 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 96How 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 $330,000 on Oct 6, 2025

502 UNION AVE

SAINT CHARLES, IL 60174
2
Beds
1
Baths
1,073 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.
0.14 ac
Lot SizeThe size of the land the home sits on, from county records.
1954
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
4
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
1
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$345K
$331K low$359K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$330,000 · Oct 6, 2025

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$5,480 (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.$86,129 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$30,312
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$55,817
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$79,360
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$258,490

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyKANE
Effective Year BuiltAn adjusted build year that accounts for condition and major remodels. A big renovation can make a home count as newer than it is.1974
Lot (acres)The size of the land the home sits on, from county records.0.14
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
FoundationWhat the home is built on, such as a concrete slab, a crawl space, or a basement.No Foundation
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Forced Air With Air Conditioning
CoolingThe type of cooling or air conditioning in the home.Yes
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, Detached
PoolWhether the property has a pool, and what kind, such as in-ground.No
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Deck

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
Munhall Elementary SchoolA
Elementary · Grades KG–5 · 0.4 mi
H
St. Charles East High SchoolA
High · Grades 9–12 · 2.1 mi
M
Wredling Middle SchoolA+
Middle · Grades 6–8 · 2.4 mi

District: St. Charles Community Unit School District 303

Neighborhood · ZIP 60174These 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.110
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.111
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.55

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.4.8%
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.30,798
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,043 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$103,802
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$137,882
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

502 Union 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.

  • Worth less than 81% of homes in Saint Charles 60174
  • Costs more per square foot than 96% of homes in Kane County
  • Smaller than 86% of homes in Saint Charles 60174
  • Has a smaller lot than 91% of homes in Saint Charles 60174
  • Older than 80% of homes in Saint Charles 60174

What homes are worth in Saint Charles 60174

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

This home
$228K$1.1M

This home is worth more than 19% of homes in Saint Charles 60174.

How it measures up in Saint Charles 60174

The dot is this home. The mark in the middle is the typical home in Saint Charles 60174.

Estimated value$345,117
CheaperTypical $443,880Pricier

Pricier than 19% of homes nearby

Price per ft²$322
CheaperTypical $256Pricier

Pricier than 81% of homes nearby

Living area1,073 ft²
SmallerTypical 1,732 ft²Bigger

Bigger than 14% of homes nearby

Lot size0.14 ac
SmallerTypical 0.24 acBigger

Bigger than 9% of homes nearby

Year built1954
OlderTypical 1977Newer

Newer than 20% of homes nearby

How 502 Union Ave ranks against every home in each area.
MeasureThis homeSaint Charles 60174Kane County
Estimated valuepricier than$345,11719% of homes42% of homes
Price per ft²pricier than$32281% of homes96% of homes
Living areabigger than1,073 ft²14% of homes14% of homes
Lot sizebigger than0.14 ac9% of homes9% of homes
Year builtnewer than195420% of homes22% of homes

About 502 Union Ave

How much is 502 Union Ave, Saint Charles, IL worth?

The TopHap Estimate for 502 Union Ave, Saint Charles, IL is $345,117 as of Sep 24, 2026. The likely range is $331,365 to $358,869. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 502 Union Ave, Saint Charles, IL last sell?

502 Union Ave, Saint Charles, IL last sold on Oct 6, 2025 for $330,000, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 502 Union Ave, Saint Charles, IL?

502 Union Ave, Saint Charles, IL has 2 bedrooms, 1 bathrooms, 1,073 square feet of living space and a 0.14-acre lot.

When was 502 Union Ave, Saint Charles, IL built?

502 Union Ave, Saint Charles, IL was built in 1954, making it 72 years old. The building has 1 story.

What schools serve 502 Union Ave, Saint Charles, IL?

502 Union Ave, Saint Charles, IL is assigned to Munhall Elementary School (elementary), rated A; St. Charles East High School (high), rated A; Wredling Middle School (middle), rated A+. All sit in St. Charles Community Unit School District 303. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 502 Union Ave, Saint Charles, IL compare to other homes in Saint Charles 60174?

Among the 10,184 homes in Saint Charles 60174, it is worth more than 19% of them ($345,117 against a typical $443,880), its price per square foot is higher than 81% of them ($322 against a typical $256), it is bigger than 14% of them (1,073 ft² against a typical 1,732 ft²), its lot is bigger than 9% of them (0.14 ac against a typical 0.24 ac) and it is newer than 20% of them (1954 against a typical 1977). Measured against all of Kane County, it is worth more than 42% 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 502 Union Ave, Saint Charles, IL?

The 2025 property tax bill for 502 Union Ave, Saint Charles, IL was $5,480. The county assessed it at $86,129.

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