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Single Family ResidenceResidential
$593,225$236 / 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 $365,000 on Aug 5, 2019

12420 8TH AVE SW

SEATTLE, WA 98146
5
Beds
6.8
Baths
2,510 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.
0.17 ac
Lot SizeThe size of the land the home sits on, from county records.
1942
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
1
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$593K
$562K low$625K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$365,000 · Aug 5, 2019

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$8,982 (2026)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$772,000 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$259,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$513,000
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$777,000
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$772,000

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.32
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
1
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
43
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
92
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
23
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
CountyKING
Lot (acres)The size of the land the home sits on, from county records.0.17
HeatingThe type of heating system in the home.Heat Pump
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.Deck · 430 ft²

Transaction History(6)

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
Hazel Valley Elementary SchoolF
Elementary · Grades KG–5 · 0.4 mi
M
Cascade Middle SchoolF
Middle · Grades 6–8 · 0.7 mi
H
Highline High SchoolD
High · Grades 9–12 · 1.9 mi

District: Highline School District

Neighborhood · ZIP 98146These 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.93
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.107
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.294

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.95%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.25%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.12%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.4%
PopulationHow many people live in this area.30,787
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.5,812 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$96,919
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$122,992
Average tempThe average temperature here across a full year.52°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.43%

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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

12420 8th Ave Sw 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 less than 77% of homes in King County
  • Among the lowest price per square foot in Seattle 98146
  • Bigger than 85% of homes in Seattle 98146
  • Has a smaller lot than 77% of homes in Mount View
  • Older than 85% of homes in Mount View

What homes are worth in Seattle 98146

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

This home
$282K$2.1M

This home is worth more than 30% of homes in Seattle 98146.

How it measures up in Seattle 98146

The dot is this home. The mark in the middle is the typical home in Seattle 98146.

Estimated value$593,225
CheaperTypical $675,649Pricier

Pricier than 30% of homes nearby

Price per ft²$236
CheaperTypical $435Pricier

Cheaper than almost all homes nearby

Living area2,510 ft²
SmallerTypical 1,630 ft²Bigger

Bigger than 85% of homes nearby

Lot size0.17 ac
SmallerTypical 0.19 acBigger

Bigger than 34% of homes nearby

Year built1942
OlderTypical 1956Newer

Newer than 20% of homes nearby

How 12420 8th Ave Sw ranks against every home in each area.
MeasureThis homeMount ViewSeattle 98146King County
Estimated valuepricier than$593,22542% of homes30% of homes23% of homes
Price per ft²pricier than$2363% of homesalmost no homesalmost no homes
Living areabigger than2,510 ft²84% of homes85% of homes73% of homes
Lot sizebigger than0.17 ac23% of homes34% of homes40% of homes
Year builtnewer than194215% of homes20% of homes15% of homes

About 12420 8th Ave Sw

How much is 12420 8th Ave Sw, Seattle, WA worth?

The TopHap Estimate for 12420 8th Ave Sw, Seattle, WA is $593,225 as of Oct 21, 2026. The likely range is $561,636 to $624,814. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 12420 8th Ave Sw, Seattle, WA last sell?

12420 8th Ave Sw, Seattle, WA last sold on Aug 5, 2019 for $365,000, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 12420 8th Ave Sw, Seattle, WA?

12420 8th Ave Sw, Seattle, WA has 5 bedrooms, 6.8 bathrooms, 2,510 square feet of living space and a 0.17-acre lot.

When was 12420 8th Ave Sw, Seattle, WA built?

12420 8th Ave Sw, Seattle, WA was built in 1942, making it 84 years old. The building has 1 story.

What schools serve 12420 8th Ave Sw, Seattle, WA?

12420 8th Ave Sw, Seattle, WA is assigned to Hazel Valley Elementary School (elementary), rated F; Cascade Middle School (middle), rated F; Highline High School (high), rated D. All sit in Highline School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 12420 8th Ave Sw, Seattle, WA compare to other homes in Seattle 98146?

Among the 8,259 homes in Seattle 98146, it is worth more than 30% of them ($593,225 against a typical $675,649), its price per square foot is higher than almost none of them ($236 against a typical $435), it is bigger than 85% of them (2,510 ft² against a typical 1,630 ft²), its lot is bigger than 34% of them (0.17 ac against a typical 0.19 ac) and it is newer than 20% of them (1942 against a typical 1956). Measured against all of King County, it is worth more than 23% 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 12420 8th Ave Sw, Seattle, WA?

The 2026 property tax bill for 12420 8th Ave Sw, Seattle, WA was $8,982. The county assessed it at $772,000.

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