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Single Family ResidenceResidential
$631,841$199 / 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 97How 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

12520 WALMER ST

LEAWOOD, KS 66209
4
Beds
3.5
Baths
3,175 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.
0.36 ac
Lot SizeThe size of the land the home sits on, from county records.
1987
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

$632K
$610K low$654K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$6,440 (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.$62,905 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$12,123
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$50,782
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$60,076
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$547,000

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
CountyJOHNSON
Lot (acres)The size of the land the home sits on, from county records.0.36
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.Concrete
RoofThe main material covering the roof, such as asphalt shingle or tile.Composition Shingle
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
ViewThe type of view from the property, or another feature of the site that affects value.Neighborhood / Spot
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.DeckShed · 288 ft²Patio · 470 ft²Porch · 18 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
Blue Valley North High SchoolA
High · Grades 9–12 · 0.3 mi
E
Valley Park Elementary SchoolA+
Elementary · Grades KG–5 · 0.3 mi
M
Overland Trail Middle SchoolA-
Middle · Grades 6–8 · 1.3 mi

District: Blue Valley Unified School District 229

Neighborhood · ZIP 66209These 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.77
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.110
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.23

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.96%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.40%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.3.4%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.0%
PopulationHow many people live in this area.19,858
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.3,214 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$139,543
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$185,512
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.61%

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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

12520 Walmer St 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 Johnson County
  • Bigger than 76% of homes in Johnson County
  • Has a bigger lot than 82% of homes in South Overland Park
  • Older than 77% of homes in South Overland Park

What homes are worth in Leawood 66209

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

This home
$464K$1.4M

This home is worth more than 30% of homes in Leawood 66209.

How it measures up in Leawood 66209

The dot is this home. The mark in the middle is the typical home in Leawood 66209.

Estimated value$631,841
CheaperTypical $710,701Pricier

Pricier than 30% of homes nearby

Price per ft²$199
CheaperTypical $197Pricier

Pricier than 53% of homes nearby

Living area3,175 ft²
SmallerTypical 3,504 ft²Bigger

Bigger than 38% of homes nearby

Lot size0.36 ac
SmallerTypical 0.3 acBigger

Bigger than 71% of homes nearby

Year built1987
OlderTypical 1988Newer

Newer than 49% of homes nearby

How 12520 Walmer St ranks against every home in each area.
MeasureThis homeSouth Overland ParkLeawood 66209Johnson County
Estimated valuepricier than$631,84158% of homes30% of homes74% of homes
Price per ft²pricier than$19959% of homes53% of homes44% of homes
Living areabigger than3,175 ft²54% of homes38% of homes76% of homes
Lot sizebigger than0.36 ac82% of homes71% of homes79% of homes
Year builtnewer than198723% of homes49% of homes52% of homes

About 12520 Walmer St

How much is 12520 Walmer St, Leawood, KS worth?

The TopHap Estimate for 12520 Walmer St, Leawood, KS is $631,841 as of Oct 21, 2026. The likely range is $609,867 to $653,815. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 12520 Walmer St, Leawood, KS last sell?

12520 Walmer St, Leawood, KS last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 12520 Walmer St, Leawood, KS?

12520 Walmer St, Leawood, KS has 4 bedrooms, 3.5 bathrooms, 3,175 square feet of living space and a 0.36-acre lot.

When was 12520 Walmer St, Leawood, KS built?

12520 Walmer St, Leawood, KS was built in 1987, making it 39 years old. It is a conventional home. The building has 1 story.

What schools serve 12520 Walmer St, Leawood, KS?

12520 Walmer St, Leawood, KS is assigned to Blue Valley North High School (high), rated A; Valley Park Elementary School (elementary), rated A+; Overland Trail Middle School (middle), rated A-. All sit in Blue Valley Unified School District 229. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 12520 Walmer St, Leawood, KS compare to other homes in Leawood 66209?

Among the 6,328 homes in Leawood 66209, it is worth more than 30% of them ($631,841 against a typical $710,701), its price per square foot is higher than 53% of them ($199 against a typical $197), it is bigger than 38% of them (3,175 ft² against a typical 3,504 ft²), its lot is bigger than 71% of them (0.36 ac against a typical 0.3 ac) and it is newer than 49% of them (1987 against a typical 1988). Measured against all of Johnson County, it is worth more than 74% 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 12520 Walmer St, Leawood, KS?

The 2025 property tax bill for 12520 Walmer St, Leawood, KS was $6,440. The county assessed it at $62,905.

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