Skip to content
Skip to content
TopHapOpen in map
Single Family ResidentialResidential
$139,809$75 / 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 Jul 14, 2026

18529 RIDDLEVILLE RD

FLAT ROCK, IL 62427
2
Beds
1
Baths
1,875 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.
0.87 ac
Lot SizeThe size of the land the home sits on, from county records.
1900
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
10
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

$140K
$125K low$154K high
Est. Owner EquityRoughly how much of the home's value the owner would keep after paying off known loans. It is our estimate minus the loans still owed.$139,809
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$111,847

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,621 (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.$36,880 (2024)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$5,347
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$31,533
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$32,782
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$110,640

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residential
StyleThe architectural style of the home, such as ranch or colonial.Conventional
CountyLawrence
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.1910
Lot (acres)The size of the land the home sits on, from county records.0.87
ConstructionThe main material the home's frame and walls are built from.Wood (Unspecified)
FoundationWhat the home is built on, such as a concrete slab, a crawl space, or a basement.Block (Unspecified)
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Central
CoolingThe type of cooling or air conditioning in the home.None
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Detached
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Porch · 252 ft²

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

H
Lawrenceville High SchoolD
High · Grades 9–12 · 8.8 mi
M
Parkview Jr High SchoolC-
Middle · Grades 6–8 · 8.8 mi
E
Parkside Elementary SchoolC+
Elementary · Grades PK–5 · 8.9 mi

District: Lawrence County Community Unit District 20

Neighborhood · ZIP 62427These 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.129
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.97
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.140

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.92%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.8.7%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.11%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.4%
PopulationHow many people live in this area.2,167
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.17 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$76,613
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$104,440
Average tempThe average temperature here across a full year.55°F
Annual precipHow much rain and melted snow falls here in a typical year.44 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.59%

Ownership

OccupancyWhether the owner appears to live here or somewhere else. It is inferred from the mailing address on record.Owner occupied
Company ownedWhether the owner is a company or trust rather than a person.No

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

18529 Riddleville Rd 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 more than 80% of homes in Flat Rock 62427
  • Costs more per square foot than 65% of homes in Flat Rock 62427
  • Bigger than 86% of homes in Flat Rock 62427
  • Has a smaller lot than 74% of homes in Flat Rock 62427
  • Older than 90% of homes in Lawrence County

What homes are worth in Flat Rock 62427

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

This home
$22K$288K

This home is worth more than 80% of homes in Flat Rock 62427.

How it measures up in Flat Rock 62427

The dot is this home. The mark in the middle is the typical home in Flat Rock 62427.

Estimated value$139,809
CheaperTypical $77,044Pricier

Pricier than 80% of homes nearby

Price per ft²$75
CheaperTypical $59Pricier

Pricier than 65% of homes nearby

Living area1,875 ft²
SmallerTypical 1,296 ft²Bigger

Bigger than 86% of homes nearby

Lot size0.87 ac
SmallerTypical 3.92 acBigger

Bigger than 26% of homes nearby

Year built1900
OlderTypical 1972Newer

Newer than 15% of homes nearby

How 18529 Riddleville Rd ranks against every home in each area.
MeasureThis homeFlat Rock 62427Lawrence County
Estimated valuepricier than$139,80980% of homes53% of homes
Price per ft²pricier than$7565% of homes43% of homes
Living areabigger than1,875 ft²86% of homes85% of homes
Lot sizebigger than0.87 ac26% of homes58% of homes
Year builtnewer than190015% of homes10% of homes

About 18529 Riddleville Rd

How much is 18529 Riddleville Rd, Flat Rock, IL worth?

The TopHap Estimate for 18529 Riddleville Rd, Flat Rock, IL is $139,809 as of Jul 14, 2026. The likely range is $125,226 to $154,392. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

How big is 18529 Riddleville Rd, Flat Rock, IL?

18529 Riddleville Rd, Flat Rock, IL has 2 bedrooms, 1 bathrooms, 1,875 square feet of living space and a 0.87-acre lot.

When was 18529 Riddleville Rd, Flat Rock, IL built?

18529 Riddleville Rd, Flat Rock, IL was built in 1900, making it 126 years old. It is a conventional home. The building has 2 stories.

What schools serve 18529 Riddleville Rd, Flat Rock, IL?

18529 Riddleville Rd, Flat Rock, IL is assigned to Lawrenceville High School (high), rated D; Parkview Jr High School (middle), rated C-; Parkside Elementary School (elementary), rated C+. All sit in Lawrence County Community Unit District 20. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 18529 Riddleville Rd, Flat Rock, IL compare to other homes in Flat Rock 62427?

Among the 731 homes in Flat Rock 62427, it is worth more than 80% of them ($139,809 against a typical $77,044), its price per square foot is higher than 65% of them ($75 against a typical $59), it is bigger than 86% of them (1,875 ft² against a typical 1,296 ft²), its lot is bigger than 26% of them (0.87 ac against a typical 3.92 ac) and it is newer than 15% of them (1900 against a typical 1972). Measured against all of Lawrence County, it is worth more than 53% 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 18529 Riddleville Rd, Flat Rock, IL?

The 2024 property tax bill for 18529 Riddleville Rd, Flat Rock, IL was $1,621. The county assessed it at $36,880.

Closest homes

More homes in Flat Rock 62427

Assigned schools

Explore the area

See this home in context

Open 18529 Riddleville Rd 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