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Duplex (2 Units, Any Combination)Residential
Last sold for $250,000 on Oct 5, 2012

863 20TH PL S

SEATTLE, WA 98144
4
Beds
2
Baths
1,450 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.
3,000 ft²
Lot SizeThe size of the land the home sits on, from county records.
1940
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

Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$250,000 · Oct 5, 2012

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$8,903 (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.$849,000 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$386,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$463,000
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$781,000
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$849,000

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Duplex (2 Units, Any Combination)
StyleThe architectural style of the home, such as ranch or colonial.Duplex Single
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.Electric
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 · 200 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.

M
Washington Middle SchoolA-
Middle · Grades 6–8 · 0.3 mi
E
Thurgood Marshall Elementary SchoolA
Elementary · Grades PK–5 · 0.4 mi
H
Garfield High SchoolA-
High · Grades 9–12 · 0.7 mi

District: Seattle School District

Neighborhood · ZIP 98144These 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.130
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.113
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.310

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.39%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.11%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.6%
PopulationHow many people live in this area.30,242
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.6,774 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$103,497
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$145,101
Average tempThe average temperature here across a full year.52°F
Annual precipHow much rain and melted snow falls here in a typical year.37 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

863 20th Pl S 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 68% of homes in King County
  • Has a smaller lot than 94% of homes in King County
  • Older than 86% of homes in King County

How it measures up in Seattle 98144

The dot is this home. The mark in the middle is the typical home in Seattle 98144.

Living area1,450 ft²
SmallerTypical 1,610 ft²Bigger

Bigger than 40% of homes nearby

Lot size3,000 ft²
SmallerTypical 4,095 ft²Bigger

Bigger than 30% of homes nearby

Year built1940
OlderTypical 1960Newer

Newer than 40% of homes nearby

How 863 20th Pl S ranks against every home in each area.
MeasureThis homeAtlanticSeattle 98144King County
Living areabigger than1,450 ft²53% of homes40% of homes32% of homes
Lot sizebigger than3,000 ft²52% of homes30% of homes6% of homes
Year builtnewer than194021% of homes40% of homes14% of homes

About 863 20th Pl S

When did 863 20th Pl S, Seattle, WA last sell?

863 20th Pl S, Seattle, WA last sold on Oct 5, 2012 for $250,000, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 863 20th Pl S, Seattle, WA?

863 20th Pl S, Seattle, WA has 4 bedrooms, 2 bathrooms, 1,450 square feet of living space and a 0.07-acre lot.

When was 863 20th Pl S, Seattle, WA built?

863 20th Pl S, Seattle, WA was built in 1940, making it 86 years old. It is a duplex single home. The building has 1 story.

What schools serve 863 20th Pl S, Seattle, WA?

863 20th Pl S, Seattle, WA is assigned to Washington Middle School (middle), rated A-; Thurgood Marshall Elementary School (elementary), rated A; Garfield High School (high), rated A-. All sit in Seattle School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 863 20th Pl S, Seattle, WA compare to other homes in Seattle 98144?

Among the 9,846 homes in Seattle 98144, it is bigger than 40% of them (1,450 ft² against a typical 1,610 ft²), its lot is bigger than 30% of them (3,000 ft² against a typical 4,095 ft²) and it is newer than 40% of them (1940 against a typical 1960). These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 863 20th Pl S, Seattle, WA?

The 2026 property tax bill for 863 20th Pl S, Seattle, WA was $8,903. The county assessed it at $849,000.

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