Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$274,562$249 / 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 95How 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 $218,000 on Dec 10, 2020

9200 RADIOM DR

SAINT LOUIS, MO 63123
3
Beds
2
Baths
1,102 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.
0.25 ac
Lot SizeThe size of the land the home sits on, from county records.
1967
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.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$275K
$262K low$287K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$218,000 · Dec 10, 2020

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,283 (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.$49,090 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$15,900
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$33,190
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$41,830
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$258,400

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.43
27
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
15
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
88
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
77
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
8
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.24 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.6%
FEMA Flood ZoneFEMA's flood zone for this address. Zones starting with A or V are high risk, and lenders usually require flood insurance there.minimal

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
StyleThe architectural style of the home, such as ranch or colonial.Ranch
CountyST. LOUIS
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.2020
Lot (acres)The size of the land the home sits on, from county records.0.25
FoundationWhat the home is built on, such as a concrete slab, a crawl space, or a basement.No Foundation
HeatingThe type of heating system in the home.Yes
CoolingThe type of cooling or air conditioning in the home.Central
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 · 225 ft²Patio · 130 ft²Porch · 84 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.

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

H
Bayless High SchoolA-
High · Grades 9–12 · 1.1 mi
M
Bayless Junior High SchoolA-
Middle · Grades 6–8 · 1.2 mi
E
Bayless Elementary SchoolA-
Elementary · Grades KG–5 · 1.2 mi

District: Bayless School District

Neighborhood · ZIP 63123These 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.101
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.92
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.148

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.95%
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.6.2%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.1%
PopulationHow many people live in this area.49,901
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.4,037 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$74,459
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$90,085
Average tempThe average temperature here across a full year.55°F
Annual precipHow much rain and melted snow falls here in a typical year.41 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.57%

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

9200 Radiom 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.

  • Worth more than 74% of homes in Affton
  • Costs more per square foot than 90% of homes in Affton
  • Smaller than 71% of homes in St. Louis County
  • Has a bigger lot than 85% of homes in Affton
  • Newer than 82% of homes in Affton

What homes are worth in Saint Louis 63123

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

This home
$121K$585K

This home is worth more than 69% of homes in Saint Louis 63123.

How it measures up in Saint Louis 63123

The dot is this home. The mark in the middle is the typical home in Saint Louis 63123.

Estimated value$274,562
CheaperTypical $239,452Pricier

Pricier than 69% of homes nearby

Price per ft²$249
CheaperTypical $204Pricier

Pricier than 88% of homes nearby

Living area1,102 ft²
SmallerTypical 1,200 ft²Bigger

Bigger than 41% of homes nearby

Lot size0.25 ac
SmallerTypical 0.17 acBigger

Bigger than 84% of homes nearby

Year built1967
OlderTypical 1956Newer

Newer than 80% of homes nearby

How 9200 Radiom Dr ranks against every home in each area.
MeasureThis homeAfftonSaint Louis 63123St. Louis County
Estimated valuepricier than$274,56274% of homes69% of homes50% of homes
Price per ft²pricier than$24990% of homes88% of homes82% of homes
Living areabigger than1,102 ft²46% of homes41% of homes29% of homes
Lot sizebigger than0.25 ac85% of homes84% of homes65% of homes
Year builtnewer than196782% of homes80% of homes57% of homes

About 9200 Radiom Dr

How much is 9200 Radiom Dr, Saint Louis, MO worth?

The TopHap Estimate for 9200 Radiom Dr, Saint Louis, MO is $274,562 as of Sep 24, 2026. The likely range is $262,187 to $286,937. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 9200 Radiom Dr, Saint Louis, MO last sell?

9200 Radiom Dr, Saint Louis, MO last sold on Dec 10, 2020 for $218,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 9200 Radiom Dr, Saint Louis, MO?

9200 Radiom Dr, Saint Louis, MO has 3 bedrooms, 2 bathrooms, 1,102 square feet of living space and a 0.25-acre lot.

When was 9200 Radiom Dr, Saint Louis, MO built?

9200 Radiom Dr, Saint Louis, MO was built in 1967, making it 59 years old. It is a ranch home. The building has 1 story.

What schools serve 9200 Radiom Dr, Saint Louis, MO?

9200 Radiom Dr, Saint Louis, MO is assigned to Bayless High School (high), rated A-; Bayless Junior High School (middle), rated A-; Bayless Elementary School (elementary), rated A-. All sit in Bayless School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 9200 Radiom Dr, Saint Louis, MO compare to other homes in Saint Louis 63123?

Among the 19,670 homes in Saint Louis 63123, it is worth more than 69% of them ($274,562 against a typical $239,452), its price per square foot is higher than 88% of them ($249 against a typical $204), it is bigger than 41% of them (1,102 ft² against a typical 1,200 ft²), its lot is bigger than 84% of them (0.25 ac against a typical 0.17 ac) and it is newer than 80% of them (1967 against a typical 1956). Measured against all of St. Louis 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 9200 Radiom Dr, Saint Louis, MO?

The 2025 property tax bill for 9200 Radiom Dr, Saint Louis, MO was $3,283. The county assessed it at $49,090.

More homes on Radiom Dr

Closest homes

More homes in Saint Louis 63123

Assigned schools

Explore the area

See this home in context

Open 9200 Radiom Dr 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