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Single Family ResidenceResidential
Last sold for $639,172 on Aug 17, 2026

12209 WALNUT ST

KANSAS CITY, MO 64145
4
Beds
3.5
Baths
1,034 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.
0.56 ac
Lot SizeThe size of the land the home sits on, from county records.
2026
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.

Valuation

Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$639,172 · Aug 17, 2026

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,133 (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.$13,490 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$13,490
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$13,490
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$71,000

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.40
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
37
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.0.56
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
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.Interior

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.

E
Martin City SchoolD+
Elementary · Grades KG–8 · 1.3 mi
H
Grandview High SchoolD
High · Grades 9–12 · 4.3 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

12209 Walnut 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.

  • Smaller than 96% of homes in Mission Lake
  • Has a bigger lot than 93% of homes in Jackson County
  • Among the newest homes in Mission Lake

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.

Living area1,034 ft²
SmallerTypical 2,080 ft²Bigger

Bigger than 4% of homes nearby

Lot size0.56 ac
SmallerTypical 0.29 acBigger

Bigger than 89% of homes nearby

Year built2026
OlderTypical 1983Newer

Newer than almost all homes nearby

How 12209 Walnut St ranks against every home in each area.
MeasureThis homeMission LakeKansas City 64145Jackson County
Living areabigger than1,034 ft²4% of homes4% of homes21% of homes
Lot sizebigger than0.56 ac78% of homes89% of homes93% of homes
Year builtnewer than2026almost all homesalmost all homesalmost all homes

About 12209 Walnut St

When did 12209 Walnut St, Kansas City, MO last sell?

12209 Walnut St, Kansas City, MO last sold on Aug 17, 2026 for $639,172, according to the county's recorded deed.

How big is 12209 Walnut St, Kansas City, MO?

12209 Walnut St, Kansas City, MO has 4 bedrooms, 3.5 bathrooms, 1,034 square feet of living space and a 0.56-acre lot.

When was 12209 Walnut St, Kansas City, MO built?

12209 Walnut St, Kansas City, MO was built in 2026, making it 0 years old. It is a conventional home. The building has 2 stories.

What schools serve 12209 Walnut St, Kansas City, MO?

12209 Walnut 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 12209 Walnut St, Kansas City, MO compare to other homes in Kansas City 64145?

Among the 2,145 homes in Kansas City 64145, it is bigger than 4% of them (1,034 ft² against a typical 2,080 ft²), its lot is bigger than 89% of them (0.56 ac against a typical 0.29 ac) and it is newer than almost all of them (2026 against a typical 1983). These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 12209 Walnut St, Kansas City, MO?

The 2025 property tax bill for 12209 Walnut St, Kansas City, MO was $1,133. The county assessed it at $13,490.

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