Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$305,769$346 / 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 94How 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 $280,000 on Jun 25, 2024

517 UNION AVE

SAINT CHARLES, IL 60174
3
Beds
1
Baths
884 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.
1953
Year BuiltThe year the home was originally built, according to county records.
1
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.
1
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$306K
$289K low$323K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$280,000 · Jun 25, 2024

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$6,350 (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.$98,536 (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.$68,224
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$90,792
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$295,726

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
StyleThe architectural style of the home, such as ranch or colonial.Ranch
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)
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

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.

E
Munhall Elementary SchoolA-
Elementary · Grades KG–5 · 0.4 mi
H
St. Charles East High SchoolB
High · Grades 9–12 · 2.1 mi
M
Wredling Middle SchoolB+
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%

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

517 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 90% of homes in Saint Charles 60174
  • Costs more per square foot than 98% of homes in Kane County
  • Smaller than 97% of homes in Saint Charles 60174
  • Has a smaller lot than 91% of homes in Kane County
  • Older than 81% 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
$240K$1.1M

This home is worth more than 10% 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$305,769
CheaperTypical $443,878Pricier

Pricier than 10% of homes nearby

Price per ft²$346
CheaperTypical $256Pricier

Pricier than 88% of homes nearby

Living area884 ft²
SmallerTypical 1,744 ft²Bigger

Bigger than 3% of homes nearby

Lot size0.14 ac
SmallerTypical 0.24 acBigger

Bigger than 10% of homes nearby

Year built1953
OlderTypical 1977Newer

Newer than 19% of homes nearby

How 517 Union Ave ranks against every home in each area.
MeasureThis homeSaint Charles 60174Kane County
Estimated valuepricier than$305,76910% of homes31% of homes
Price per ft²pricier than$34688% of homes98% of homes
Living areabigger than884 ft²3% of homes5% of homes
Lot sizebigger than0.14 ac10% of homes9% of homes
Year builtnewer than195319% of homes22% of homes

About 517 Union Ave

How much is 517 Union Ave, Saint Charles, IL worth?

The TopHap Estimate for 517 Union Ave, Saint Charles, IL is $305,769 as of Aug 30, 2026. The likely range is $288,769 to $322,769. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 517 Union Ave, Saint Charles, IL last sell?

517 Union Ave, Saint Charles, IL last sold on Jun 25, 2024 for $280,000, according to the county's recorded deed. TopHap holds 5 recorded sales for this parcel.

How big is 517 Union Ave, Saint Charles, IL?

517 Union Ave, Saint Charles, IL has 3 bedrooms, 1 bathrooms, 884 square feet of living space and a 0.14-acre lot.

When was 517 Union Ave, Saint Charles, IL built?

517 Union Ave, Saint Charles, IL was built in 1953, making it 73 years old. It is a ranch home. The building has 1 story.

What schools serve 517 Union Ave, Saint Charles, IL?

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

How does 517 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 10% of them ($305,769 against a typical $443,878), its price per square foot is higher than 88% of them ($346 against a typical $256), it is bigger than 3% of them (884 ft² against a typical 1,744 ft²), its lot is bigger than 10% of them (0.14 ac against a typical 0.24 ac) and it is newer than 19% of them (1953 against a typical 1977). Measured against all of Kane County, it is worth more than 31% 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 517 Union Ave, Saint Charles, IL?

The 2025 property tax bill for 517 Union Ave, Saint Charles, IL was $6,350. The county assessed it at $98,536.

More homes on Union Ave

Closest homes

More homes in Saint Charles 60174

Assigned schools

Explore the area

See this home in context

Open 517 Union 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