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Single Family ResidenceResidential
$379,599$376 / 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 98How 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 $211,000 on Jul 5, 2017

231 S 18TH ST

SAINT CHARLES, IL 60174
3
Beds
1
Baths
1,010 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.
0.16 ac
Lot SizeThe size of the land the home sits on, from county records.
1959
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
5
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

$380K
$373K low$387K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$211,000 · Jul 5, 2017

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$6,431 (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.$99,698 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$33,546
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$66,152
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$91,862
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$299,214

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.1969
Lot (acres)The size of the land the home sits on, from county records.0.16
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
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Attached
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(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
Richmond Elementary SchoolA
Elementary · Grades KG–5 · 0.4 mi
M
Thompson Middle SchoolA-
Middle · Grades 6–8 · 0.7 mi
H
St. Charles East High SchoolB
High · Grades 9–12 · 3.1 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

231 S 18th St 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 69% of homes in Saint Charles 60174
  • Among the highest price per square foot in Kane County
  • Smaller than 91% of homes in Saint Charles 60174
  • Has a smaller lot than 79% of homes in Saint Charles 60174
  • Older than 74% 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
$232K$1.1M

This home is worth more than 31% 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$379,599
CheaperTypical $442,893Pricier

Pricier than 31% of homes nearby

Price per ft²$376
CheaperTypical $256Pricier

Pricier than 94% of homes nearby

Living area1,010 ft²
SmallerTypical 1,733 ft²Bigger

Bigger than 9% of homes nearby

Lot size0.16 ac
SmallerTypical 0.24 acBigger

Bigger than 21% of homes nearby

Year built1959
OlderTypical 1977Newer

Newer than 26% of homes nearby

How 231 S 18th St ranks against every home in each area.
MeasureThis homeSaint Charles 60174Kane County
Estimated valuepricier than$379,59931% of homes50% of homes
Price per ft²pricier than$37694% of homesalmost all homes
Living areabigger than1,010 ft²9% of homes10% of homes
Lot sizebigger than0.16 ac21% of homes21% of homes
Year builtnewer than195926% of homes29% of homes

About 231 S 18th St

How much is 231 S 18th St, Saint Charles, IL worth?

The TopHap Estimate for 231 S 18th St, Saint Charles, IL is $379,599 as of Sep 24, 2026. The likely range is $372,535 to $386,663. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 231 S 18th St, Saint Charles, IL last sell?

231 S 18th St, Saint Charles, IL last sold on Jul 5, 2017 for $211,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 231 S 18th St, Saint Charles, IL?

231 S 18th St, Saint Charles, IL has 3 bedrooms, 1 bathrooms, 1,010 square feet of living space and a 0.16-acre lot.

When was 231 S 18th St, Saint Charles, IL built?

231 S 18th St, Saint Charles, IL was built in 1959, making it 67 years old. It is a ranch home. The building has 1 story.

What schools serve 231 S 18th St, Saint Charles, IL?

231 S 18th St, Saint Charles, IL is assigned to Richmond Elementary School (elementary), rated A; Thompson Middle School (middle), rated A-; St. Charles East High School (high), 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 231 S 18th St, 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 31% of them ($379,599 against a typical $442,893), its price per square foot is higher than 94% of them ($376 against a typical $256), it is bigger than 9% of them (1,010 ft² against a typical 1,733 ft²), its lot is bigger than 21% of them (0.16 ac against a typical 0.24 ac) and it is newer than 26% of them (1959 against a typical 1977). Measured against all of Kane County, it is worth more than 50% 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 231 S 18th St, Saint Charles, IL?

The 2025 property tax bill for 231 S 18th St, Saint Charles, IL was $6,431. The county assessed it at $99,698.

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