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Single Family ResidenceResidential
$211,273$157 / 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 Oct 21, 2026
Last sold for $119,900 on Apr 3, 2017

12021 ROSEVALLEY LN

SAINT LOUIS, MO 63138
3
Beds
2
Baths
1,344 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.
1972
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
7
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

$211K
$200K low$222K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$119,900 · Apr 3, 2017

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,125 (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.$34,940 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$2,620
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$32,320
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$34,040
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$183,900

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
43
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
16
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
85
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.
4
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.10 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.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.2016
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.Raised (Unspecified)
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.Patio · 120 ft²Porch · 120 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
East High SchoolD
High · Grades 9–12 · 1.2 mi
E
Arrowpoint Elementary SchoolF
Elementary · Grades PK–5 · 1.4 mi
M
Southeast Middle SchoolD-
Middle · Grades 6–8 · 1.9 mi

District: Hazelwood School District

Neighborhood · ZIP 63138These 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.142
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.85
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.131

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.82%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.11%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.19%
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.18,539
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.843 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$56,771
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$72,517
Average tempThe average temperature here across a full year.55°F
Annual precipHow much rain and melted snow falls here in a typical year.39 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

12021 Rosevalley Ln 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 88% of homes in Saint Louis 63138
  • Costs more per square foot than 96% of homes in Saint Louis 63138
  • Newer than 79% of homes in Saint Louis 63138

What homes are worth in Saint Louis 63138

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

This home
$59K$299K

This home is worth more than 88% of homes in Saint Louis 63138.

How it measures up in Saint Louis 63138

The dot is this home. The mark in the middle is the typical home in Saint Louis 63138.

Estimated value$211,273
CheaperTypical $137,139Pricier

Pricier than 88% of homes nearby

Price per ft²$157
CheaperTypical $108Pricier

Pricier than 96% of homes nearby

Living area1,344 ft²
SmallerTypical 1,273 ft²Bigger

Bigger than 58% of homes nearby

Lot size0.2 ac
SmallerTypical 0.23 acBigger

Bigger than 40% of homes nearby

Year built1972
OlderTypical 1961Newer

Newer than 79% of homes nearby

How 12021 Rosevalley Ln ranks against every home in each area.
MeasureThis homeSaint Louis 63138St. Louis County
Estimated valuepricier than$211,27388% of homes37% of homes
Price per ft²pricier than$15796% of homes37% of homes
Living areabigger than1,344 ft²58% of homes45% of homes
Lot sizebigger than0.2 ac40% of homes50% of homes
Year builtnewer than197279% of homes64% of homes

About 12021 Rosevalley Ln

How much is 12021 Rosevalley Ln, Saint Louis, MO worth?

The TopHap Estimate for 12021 Rosevalley Ln, Saint Louis, MO is $211,273 as of Oct 21, 2026. The likely range is $200,115 to $222,431. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 12021 Rosevalley Ln, Saint Louis, MO last sell?

12021 Rosevalley Ln, Saint Louis, MO last sold on Apr 3, 2017 for $119,900, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 12021 Rosevalley Ln, Saint Louis, MO?

12021 Rosevalley Ln, Saint Louis, MO has 3 bedrooms, 2 bathrooms, 1,344 square feet of living space and a 0.20-acre lot.

When was 12021 Rosevalley Ln, Saint Louis, MO built?

12021 Rosevalley Ln, Saint Louis, MO was built in 1972, making it 54 years old. It is a ranch home. The building has 1 story.

What schools serve 12021 Rosevalley Ln, Saint Louis, MO?

12021 Rosevalley Ln, Saint Louis, MO is assigned to East High School (high), rated D; Arrowpoint Elementary School (elementary), rated F; Southeast Middle School (middle), rated D-. All sit in Hazelwood School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 12021 Rosevalley Ln, Saint Louis, MO compare to other homes in Saint Louis 63138?

Among the 5,376 homes in Saint Louis 63138, it is worth more than 88% of them ($211,273 against a typical $137,139), its price per square foot is higher than 96% of them ($157 against a typical $108), it is bigger than 58% of them (1,344 ft² against a typical 1,273 ft²), its lot is bigger than 40% of them (0.2 ac against a typical 0.23 ac) and it is newer than 79% of them (1972 against a typical 1961). Measured against all of St. Louis County, it is worth more than 37% 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 12021 Rosevalley Ln, Saint Louis, MO?

The 2025 property tax bill for 12021 Rosevalley Ln, Saint Louis, MO was $3,125. The county assessed it at $34,940.

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