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Vacant LandVacant Land
$88,278
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 Aug 30, 2026

340 CREST DR

BALLWIN, MO 63021
0
Baths
0.11 ac
Lot SizeThe size of the land the home sits on, from county records.

Valuation

$88K
$79K low$97K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$52 (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.$760 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$760
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$950
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$4,000

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.48
37
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
40
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
86
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
73
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.11 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.0.2 percent flood zone

Scores 0–100; higher = greater projected risk.

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Vacant Land
CountyST. LOUIS
Lot (acres)The size of the land the home sits on, from county records.0.11
PoolWhether the property has a pool, and what kind, such as in-ground.No

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

E
Ridge Meadows Elementary SchoolA
Elementary · Grades KG–5 · 2.3 mi
H
Eureka High SchoolA
High · Grades 9–12 · 2.5 mi
M
LaSalle Springs Middle SchoolA+
Middle · Grades 6–8 · 2.7 mi

District: Rockwood R-Vi School District

Neighborhood · ZIP 63021These 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.41
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.82
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.129

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.97%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.39%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.3.6%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.2%
PopulationHow many people live in this area.55,113
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,498 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$113,595
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$131,969
Average tempThe average temperature here across a full year.55°F
Annual precipHow much rain and melted snow falls here in a typical year.42 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

340 Crest 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.

  • Among the least valuable homes in Ballwin 63021
  • Has a smaller lot than 88% of homes in St. Louis County

What homes are worth in Ballwin 63021

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

This home
$173K$846K

This home is worth less than almost all homes in Ballwin 63021.

How it measures up in Ballwin 63021

The dot is this home. The mark in the middle is the typical home in Ballwin 63021.

Estimated value$88,278
CheaperTypical $365,415Pricier

Cheaper than almost all homes nearby

Lot size0.11 ac
SmallerTypical 0.21 acBigger

Bigger than 14% of homes nearby

How 340 Crest Dr ranks against every home in each area.
MeasureThis homeBallwin 63021St. Louis County
Estimated valuepricier than$88,278almost no homes8% of homes
Lot sizebigger than0.11 ac14% of homes12% of homes

About 340 Crest Dr

How much is 340 Crest Dr, Ballwin, MO worth?

The TopHap Estimate for 340 Crest Dr, Ballwin, MO is $88,278 as of Aug 30, 2026. The likely range is $79,083 to $97,473. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 340 Crest Dr, Ballwin, MO last sell?

340 Crest Dr, Ballwin, MO last sold on Jan 1, 1900, according to the county's recorded deed.

What schools serve 340 Crest Dr, Ballwin, MO?

340 Crest Dr, Ballwin, MO is assigned to Ridge Meadows Elementary School (elementary), rated A; Eureka High School (high), rated A; LaSalle Springs Middle School (middle), rated A+. All sit in Rockwood R-Vi School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 340 Crest Dr, Ballwin, MO compare to other homes in Ballwin 63021?

Among the 19,805 homes in Ballwin 63021, it is worth more than almost none of them ($88,278 against a typical $365,415) and its lot is bigger than 14% of them (0.11 ac against a typical 0.21 ac). Measured against all of St. Louis County, it is worth more than 8% 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 340 Crest Dr, Ballwin, MO?

The 2025 property tax bill for 340 Crest Dr, Ballwin, MO was $52. The county assessed it at $760.

More homes on Crest Dr

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More homes in Ballwin 63021

Assigned schools

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