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Single Family ResidenceResidential
$229,469$236 / 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 85How 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

121 GREENBRIAR DR

BELLEVILLE, IL 62221
4
Baths
972 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.
0.29 ac
Lot SizeThe size of the land the home sits on, from county records.
1977
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$229K
$195K low$264K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,221 (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.$68,322 (2024)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$8,824
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$59,498
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$64,714
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$204,966

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.40
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
21
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
83
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
71
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
24
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.

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
CountyST. CLAIR
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.1995
Lot (acres)The size of the land the home sits on, from county records.0.29
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
CoolingThe type of cooling or air conditioning in the home.Central
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.Mixed
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 · 264 ft²Patio · 264 ft²Porch · 128 ft²

Transaction History(3)

Sales and refinances filed with the county for this home. Not every transfer is a normal sale, so check the type before comparing prices.

Foreclosure Filings(2)

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

M
Whiteside Middle SchoolC
Middle · Grades 5–8 · 0.8 mi
E
Whiteside Elementary SchoolC-
Elementary · Grades PK–4 · 0.9 mi

District: Whiteside School District 115

Neighborhood · ZIP 62221These 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.86
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.93
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.163

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.93%
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.9.6%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.3%
PopulationHow many people live in this area.30,133
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.851 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$88,289
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$101,239
Average tempThe average temperature here across a full year.56°F
Annual precipHow much rain and melted snow falls here in a typical year.40 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.59%

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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

121 Greenbriar Dr 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.

  • Costs more per square foot than 83% of homes in St. Clair County
  • Smaller than 78% of homes in Belleville 62221

What homes are worth in Belleville 62221

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

This home
$77K$574K

This home is worth more than 45% of homes in Belleville 62221.

How it measures up in Belleville 62221

The dot is this home. The mark in the middle is the typical home in Belleville 62221.

Estimated value$229,469
CheaperTypical $243,325Pricier

Pricier than 45% of homes nearby

Price per ft²$236
CheaperTypical $170Pricier

Pricier than 76% of homes nearby

Living area972 ft²
SmallerTypical 1,312 ft²Bigger

Bigger than 22% of homes nearby

Lot size0.29 ac
SmallerTypical 0.25 acBigger

Bigger than 61% of homes nearby

Year built1977
OlderTypical 1986Newer

Newer than 37% of homes nearby

How 121 Greenbriar Dr ranks against every home in each area.
MeasureThis homeBelleville 62221St. Clair County
Estimated valuepricier than$229,46945% of homes63% of homes
Price per ft²pricier than$23676% of homes83% of homes
Living areabigger than972 ft²22% of homes29% of homes
Lot sizebigger than0.29 ac61% of homes60% of homes
Year builtnewer than197737% of homes60% of homes

About 121 Greenbriar Dr

How much is 121 Greenbriar Dr, Belleville, IL worth?

The TopHap Estimate for 121 Greenbriar Dr, Belleville, IL is $229,469 as of Aug 30, 2026. The likely range is $194,661 to $264,277. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 121 Greenbriar Dr, Belleville, IL last sell?

121 Greenbriar Dr, Belleville, IL last sold on Aug 29, 2025, according to the county's recorded deed.

How big is 121 Greenbriar Dr, Belleville, IL?

121 Greenbriar Dr, Belleville, IL has 4 bathrooms, 972 square feet of living space and a 0.29-acre lot.

When was 121 Greenbriar Dr, Belleville, IL built?

121 Greenbriar Dr, Belleville, IL was built in 1977, making it 49 years old. The building has 2 stories.

What schools serve 121 Greenbriar Dr, Belleville, IL?

121 Greenbriar Dr, Belleville, IL is assigned to Whiteside Middle School (middle), rated C; Whiteside Elementary School (elementary), rated C-. All sit in Whiteside School District 115. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 121 Greenbriar Dr, Belleville, IL compare to other homes in Belleville 62221?

Among the 10,156 homes in Belleville 62221, it is worth more than 45% of them ($229,469 against a typical $243,325), its price per square foot is higher than 76% of them ($236 against a typical $170), it is bigger than 22% of them (972 ft² against a typical 1,312 ft²), its lot is bigger than 61% of them (0.29 ac against a typical 0.25 ac) and it is newer than 37% of them (1977 against a typical 1986). Measured against all of St. Clair County, it is worth more than 63% 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 121 Greenbriar Dr, Belleville, IL?

The 2024 property tax bill for 121 Greenbriar Dr, Belleville, IL was $3,221. The county assessed it at $68,322.

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Assigned schools

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