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Single Family ResidenceResidential
$978,544$207 / 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 $675,000 on Aug 29, 2016

12421 SUMMIT ST

KANSAS CITY, MO 64145
3
Beds
4.5
Baths
4,732 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.
0.43 ac
Lot SizeThe size of the land the home sits on, from county records.
1988
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
3
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$979K
$927K low$1M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$675,000 · Aug 29, 2016

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$12,919 (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.$153,781 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$16,194
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$137,587
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$156,267
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$809,370

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.39
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
29
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
79
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
69
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
17
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.

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
CountyJACKSON
Lot (acres)The size of the land the home sits on, from county records.0.43
ConstructionThe main material the home's frame and walls are built from.Concrete
RoofThe main material covering the roof, such as asphalt shingle or tile.Composition Shingle
HeatingThe type of heating system in the home.Forced Air With Air Conditioning
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.Porch · 138 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.

E
Martin City SchoolD+
Elementary · Grades KG–8 · 1.3 mi
H
Grandview High SchoolD
High · Grades 9–12 · 4.9 mi

District: Grandview C-4 School District

Neighborhood · ZIP 64145These 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.61
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.105
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.25

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.92%
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.8.0%
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.5,624
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.761 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$93,376
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$110,203
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

12421 Summit 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.

  • Among the most valuable homes in Jackson County
  • Costs more per square foot than 69% of homes in Jackson County
  • Among the largest homes in Kansas City 64145
  • Has a bigger lot than 90% of homes in Jackson County
  • Newer than 87% of homes in Blue Hills Estates

What homes are worth in Kansas City 64145

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

This home
$198K$882K

This home is worth more than almost all homes in Kansas City 64145.

How it measures up in Kansas City 64145

The dot is this home. The mark in the middle is the typical home in Kansas City 64145.

Estimated value$978,544
CheaperTypical $433,456Pricier

Pricier than almost all homes nearby

Price per ft²$207
CheaperTypical $198Pricier

Pricier than 59% of homes nearby

Living area4,732 ft²
SmallerTypical 2,077 ft²Bigger

Bigger than almost all homes nearby

Lot size0.43 ac
SmallerTypical 0.29 acBigger

Bigger than 79% of homes nearby

Year built1988
OlderTypical 1983Newer

Newer than 68% of homes nearby

How 12421 Summit St ranks against every home in each area.
MeasureThis homeBlue Hills EstatesKansas City 64145Jackson County
Estimated valuepricier than$978,54498% of homesalmost all homesalmost all homes
Price per ft²pricier than$20758% of homes59% of homes69% of homes
Living areabigger than4,732 ft²97% of homesalmost all homesalmost all homes
Lot sizebigger than0.43 ac68% of homes79% of homes90% of homes
Year builtnewer than198887% of homes68% of homes76% of homes

About 12421 Summit St

How much is 12421 Summit St, Kansas City, MO worth?

The TopHap Estimate for 12421 Summit St, Kansas City, MO is $978,544 as of Sep 24, 2026. The likely range is $927,193 to $1,029,895. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 12421 Summit St, Kansas City, MO last sell?

12421 Summit St, Kansas City, MO last sold on Aug 29, 2016 for $675,000, according to the county's recorded deed.

How big is 12421 Summit St, Kansas City, MO?

12421 Summit St, Kansas City, MO has 3 bedrooms, 4.5 bathrooms, 4,732 square feet of living space and a 0.43-acre lot.

When was 12421 Summit St, Kansas City, MO built?

12421 Summit St, Kansas City, MO was built in 1988, making it 38 years old. It is a conventional home. The building has 2 stories.

What schools serve 12421 Summit St, Kansas City, MO?

12421 Summit St, Kansas City, MO is assigned to Martin City School (elementary), rated D+; Grandview High School (high), rated D. All sit in Grandview C-4 School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 12421 Summit St, Kansas City, MO compare to other homes in Kansas City 64145?

Among the 2,145 homes in Kansas City 64145, it is worth more than almost all of them ($978,544 against a typical $433,456), its price per square foot is higher than 59% of them ($207 against a typical $198), it is bigger than almost all of them (4,732 ft² against a typical 2,077 ft²), its lot is bigger than 79% of them (0.43 ac against a typical 0.29 ac) and it is newer than 68% of them (1988 against a typical 1983). Measured against all of Jackson 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 12421 Summit St, Kansas City, MO?

The 2025 property tax bill for 12421 Summit St, Kansas City, MO was $12,919. The county assessed it at $153,781.

More homes on Summit St

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