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Single Family ResidenceResidential
$1,013,259$483 / 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 96How 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 $630,000 on Nov 30, 2017

8439 40TH AVE SW

SEATTLE, WA 98136
4
Beds
2.5
Baths
2,100 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.
3,200 ft²
Lot SizeThe size of the land the home sits on, from county records.
1965
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$1M
$972K low$1.1M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$630,000 · Nov 30, 2017

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$8,438 (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.$802,000 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$307,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$495,000
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$765,000
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$802,000

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.
44
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
91
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.0.07
HeatingThe type of heating system in the home.Forced Air With Air Conditioning
FireplaceWhether the home has a fireplace, and what kind.Yes
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 · 190 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
Chief Sealth International High SchoolC-
High · Grades 9–12 · 0.8 mi
M
Denny International Middle SchoolB+
Middle · Grades 6–8 · 0.8 mi
E
Arbor Heights Elementary SchoolA-
Elementary · Grades PK–5 · 1.2 mi

District: Seattle School District

Neighborhood · ZIP 98136These 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.102
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.109
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.315

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.45%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.5.2%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.5%
PopulationHow many people live in this area.16,831
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.5,344 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$137,457
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$173,103
Average tempThe average temperature here across a full year.52°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.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

8439 40th 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.

  • Costs less per square foot than 81% of homes in Seattle 98136
  • Bigger than 67% of homes in Seattle 98136
  • Has a smaller lot than 96% of homes in Fauntleroy
  • Newer than 71% of homes in Fauntleroy

What homes are worth in Seattle 98136

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

This home
$359K$2.6M

This home is worth more than 55% of homes in Seattle 98136.

How it measures up in Seattle 98136

The dot is this home. The mark in the middle is the typical home in Seattle 98136.

Estimated value$1,013,259
CheaperTypical $963,153Pricier

Pricier than 55% of homes nearby

Price per ft²$483
CheaperTypical $568Pricier

Pricier than 19% of homes nearby

Living area2,100 ft²
SmallerTypical 1,720 ft²Bigger

Bigger than 67% of homes nearby

Lot size3,200 ft²
SmallerTypical 0.14 acBigger

Bigger than 12% of homes nearby

Year built1965
OlderTypical 1952Newer

Newer than 65% of homes nearby

How 8439 40th Ave Sw ranks against every home in each area.
MeasureThis homeFauntleroySeattle 98136King County
Estimated valuepricier than$1,013,25942% of homes55% of homes61% of homes
Price per ft²pricier than$48320% of homes19% of homes45% of homes
Living areabigger than2,100 ft²56% of homes67% of homes60% of homes
Lot sizebigger than3,200 ft²4% of homes12% of homes7% of homes
Year builtnewer than196571% of homes65% of homes35% of homes

About 8439 40th Ave Sw

How much is 8439 40th Ave Sw, Seattle, WA worth?

The TopHap Estimate for 8439 40th Ave Sw, Seattle, WA is $1,013,259 as of Sep 24, 2026. The likely range is $971,663 to $1,054,855. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 8439 40th Ave Sw, Seattle, WA last sell?

8439 40th Ave Sw, Seattle, WA last sold on Nov 30, 2017 for $630,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 8439 40th Ave Sw, Seattle, WA?

8439 40th Ave Sw, Seattle, WA has 4 bedrooms, 2.5 bathrooms, 2,100 square feet of living space and a 0.07-acre lot.

When was 8439 40th Ave Sw, Seattle, WA built?

8439 40th Ave Sw, Seattle, WA was built in 1965, making it 61 years old. The building has 1 story.

What schools serve 8439 40th Ave Sw, Seattle, WA?

8439 40th Ave Sw, Seattle, WA is assigned to Chief Sealth International High School (high), rated C-; Denny International Middle School (middle), rated B+; Arbor Heights Elementary School (elementary), rated A-. All sit in Seattle School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 8439 40th Ave Sw, Seattle, WA compare to other homes in Seattle 98136?

Among the 6,518 homes in Seattle 98136, it is worth more than 55% of them ($1,013,259 against a typical $963,153), its price per square foot is higher than 19% of them ($483 against a typical $568), it is bigger than 67% of them (2,100 ft² against a typical 1,720 ft²), its lot is bigger than 12% of them (3,200 ft² against a typical 0.14 ac) and it is newer than 65% of them (1965 against a typical 1952). Measured against all of King County, it is worth more than 61% 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 8439 40th Ave Sw, Seattle, WA?

The 2026 property tax bill for 8439 40th Ave Sw, Seattle, WA was $8,438. The county assessed it at $802,000.

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