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Single Family ResidenceResidential
$532,740$419 / 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 89How 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 $162,500 on Jun 1, 2001

6331 21ST AVE SW

SEATTLE, WA 98106
2
Beds
1
Baths
1,270 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.
1906
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$533K
$477K low$589K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$162,500 · Jun 1, 2001

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$6,546 (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.$560,000 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$353,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$207,000
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$565,000
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$560,000

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.Gravity
GarageWhether the property has a garage, and details like whether it is attached to the home.Carport (Unspecified)
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 · 210 ft²Porch · 50 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
Sanislo Elementary SchoolD+
Elementary · Grades KG–5 · 0.4 mi
M
Denny International Middle SchoolC-
Middle · Grades 6–8 · 1.1 mi
H
Chief Sealth International High SchoolC
High · Grades 9–12 · 1.1 mi

District: Seattle School District

Neighborhood · ZIP 98106These 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.120
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 100.316

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.30%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.10.0%
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.27,079
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.4,800 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$101,297
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$128,049
Average tempThe average temperature here across a full year.51°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

6331 21st 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 89% of homes in Riverview
  • Costs less per square foot than 78% of homes in Riverview
  • Smaller than 76% of homes in King County
  • Has a bigger lot than 70% of homes in Seattle 98106
  • Among the oldest homes in Riverview

What homes are worth in Seattle 98106

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

This home
$366K$1.2M

This home is worth more than 23% of homes in Seattle 98106.

How it measures up in Seattle 98106

The dot is this home. The mark in the middle is the typical home in Seattle 98106.

Estimated value$532,740
CheaperTypical $641,911Pricier

Pricier than 23% of homes nearby

Price per ft²$419
CheaperTypical $448Pricier

Pricier than 37% of homes nearby

Living area1,270 ft²
SmallerTypical 1,470 ft²Bigger

Bigger than 38% of homes nearby

Lot size0.17 ac
SmallerTypical 0.13 acBigger

Bigger than 70% of homes nearby

Year built1906
OlderTypical 1967Newer

Older than almost all homes nearby

How 6331 21st Ave Sw ranks against every home in each area.
MeasureThis homeRiverviewSeattle 98106King County
Estimated valuepricier than$532,74011% of homes23% of homes16% of homes
Price per ft²pricier than$41922% of homes37% of homes32% of homes
Living areabigger than1,270 ft²31% of homes38% of homes24% of homes
Lot sizebigger than0.17 ac59% of homes70% of homes38% of homes
Year builtnewer than1906almost no homesalmost no homes2% of homes

About 6331 21st Ave Sw

How much is 6331 21st Ave Sw, Seattle, WA worth?

The TopHap Estimate for 6331 21st Ave Sw, Seattle, WA is $532,740 as of Sep 24, 2026. The likely range is $476,506 to $588,974. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 6331 21st Ave Sw, Seattle, WA last sell?

6331 21st Ave Sw, Seattle, WA last sold on Jun 1, 2001 for $162,500, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 6331 21st Ave Sw, Seattle, WA?

6331 21st Ave Sw, Seattle, WA has 2 bedrooms, 1 bathrooms, 1,270 square feet of living space and a 0.17-acre lot.

When was 6331 21st Ave Sw, Seattle, WA built?

6331 21st Ave Sw, Seattle, WA was built in 1906, making it 120 years old. The building has 1 story.

What schools serve 6331 21st Ave Sw, Seattle, WA?

6331 21st Ave Sw, Seattle, WA is assigned to Sanislo Elementary School (elementary), rated D+; Denny International Middle School (middle), rated C-; Chief Sealth International High School (high), rated C. All sit in Seattle School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 6331 21st Ave Sw, Seattle, WA compare to other homes in Seattle 98106?

Among the 8,098 homes in Seattle 98106, it is worth more than 23% of them ($532,740 against a typical $641,911), its price per square foot is higher than 37% of them ($419 against a typical $448), it is bigger than 38% of them (1,270 ft² against a typical 1,470 ft²), its lot is bigger than 70% of them (0.17 ac against a typical 0.13 ac) and it is newer than almost none of them (1906 against a typical 1967). Measured against all of King County, it is worth more than 16% 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 6331 21st Ave Sw, Seattle, WA?

The 2026 property tax bill for 6331 21st Ave Sw, Seattle, WA was $6,546. The county assessed it at $560,000.

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