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Single Family ResidenceResidential
$3,149,900$423 / 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 80How 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 $825,000 on Apr 24, 2024

121 TOPTON WAY

SAINT LOUIS, MO 63105
4
Beds
4.5
Baths
7,440 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.
0.2 ac
Lot SizeThe size of the land the home sits on, from county records.
2025
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
9
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

$3.1M
$2.5M low$3.8M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$825,000 · Apr 24, 2024

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$10,811 (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.$157,050 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$157,050
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$172,160
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$826,600

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.45
35
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
22
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.
76
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.6 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%
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.Conventional
CountyST. LOUIS
Lot (acres)The size of the land the home sits on, from county records.0.20
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
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, 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 · 160 ft²Patio · 160 ft²Porch · 195 ft²

Transaction History(2)

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
Clayton High SchoolA+
High · Grades 9–12 · 0.3 mi
E
Meramec Elementary SchoolA+
Elementary · Grades KG–5 · 0.7 mi
M
Wydown Middle SchoolA+
Middle · Grades 6–8 · 2.0 mi

District: Clayton School District

Neighborhood · ZIP 63105These 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.103
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.88
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.132

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.89%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.33%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.7.0%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.9%
PopulationHow many people live in this area.17,043
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.6,465 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$124,640
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$178,134
Average tempThe average temperature here across a full year.55°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.57%

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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 Topton Way 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.

  • Among the most valuable homes in St. Louis County
  • Among the highest price per square foot in St. Louis County
  • Among the largest homes in St. Louis County
  • Has a bigger lot than 76% of homes in Saint Louis 63105
  • Among the newest homes in Saint Louis 63105

What homes are worth in Saint Louis 63105

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

This home
$156K$3.1M

This home is worth more than 98% of homes in Saint Louis 63105.

How it measures up in Saint Louis 63105

The dot is this home. The mark in the middle is the typical home in Saint Louis 63105.

Estimated value$3,149,900
CheaperTypical $797,837Pricier

Pricier than 98% of homes nearby

Price per ft²$423
CheaperTypical $332Pricier

Pricier than 79% of homes nearby

Living area7,440 ft²
SmallerTypical 2,437 ft²Bigger

Bigger than 95% of homes nearby

Lot size0.2 ac
SmallerTypical 0.13 acBigger

Bigger than 76% of homes nearby

Year built2025
OlderTypical 1939Newer

Newer than almost all homes nearby

How 121 Topton Way ranks against every home in each area.
MeasureThis homeSaint Louis 63105St. Louis County
Estimated valuepricier than$3,149,90098% of homesalmost all homes
Price per ft²pricier than$42379% of homesalmost all homes
Living areabigger than7,440 ft²95% of homesalmost all homes
Lot sizebigger than0.2 ac76% of homes51% of homes
Year builtnewer than2025almost all homesalmost all homes

About 121 Topton Way

How much is 121 Topton Way, Saint Louis, MO worth?

The TopHap Estimate for 121 Topton Way, Saint Louis, MO is $3,149,900 as of Sep 24, 2026. The likely range is $2,515,569 to $3,784,231. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 121 Topton Way, Saint Louis, MO last sell?

121 Topton Way, Saint Louis, MO last sold on Apr 24, 2024 for $825,000, according to the county's recorded deed.

How big is 121 Topton Way, Saint Louis, MO?

121 Topton Way, Saint Louis, MO has 4 bedrooms, 4.5 bathrooms, 7,440 square feet of living space and a 0.20-acre lot.

When was 121 Topton Way, Saint Louis, MO built?

121 Topton Way, Saint Louis, MO was built in 2025, making it 1 years old. It is a conventional home. The building has 2 stories.

What schools serve 121 Topton Way, Saint Louis, MO?

121 Topton Way, Saint Louis, MO is assigned to Clayton High School (high), rated A+; Meramec Elementary School (elementary), rated A+; Wydown Middle School (middle), rated A+. All sit in Clayton School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 121 Topton Way, Saint Louis, MO compare to other homes in Saint Louis 63105?

Among the 5,079 homes in Saint Louis 63105, it is worth more than 98% of them ($3,149,900 against a typical $797,837), its price per square foot is higher than 79% of them ($423 against a typical $332), it is bigger than 95% of them (7,440 ft² against a typical 2,437 ft²), its lot is bigger than 76% of them (0.2 ac against a typical 0.13 ac) and it is newer than almost all of them (2025 against a typical 1939). Measured against all of St. Louis County, it is worth more than almost all 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 Topton Way, Saint Louis, MO?

The 2025 property tax bill for 121 Topton Way, Saint Louis, MO was $10,811. The county assessed it at $157,050.

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