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Single Family ResidenceResidential
$812,718$421 / 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 Oct 21, 2026

3403 20TH AVE S

SEATTLE, WA 98144
4
Beds
1.8
Baths
1,930 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.
3,916 ft²
Lot SizeThe size of the land the home sits on, from county records.
1926
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$813K
$783K low$843K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$8,401 (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.$785,000 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$358,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$427,000
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$758,000
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$785,000

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.0.09
HeatingThe type of heating system in the home.Forced Air With Air Conditioning
FireplaceWhether the home has a fireplace, and what kind.Yes
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Detached
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.Water View

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

E
Kimball Elementary SchoolC
Elementary · Grades KG–5 · 0.2 mi
H
Franklin High SchoolC+
High · Grades 9–12 · 0.7 mi
M
Washington Middle SchoolB-
Middle · Grades 6–8 · 1.8 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

3403 20th Ave 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.

  • Costs less per square foot than 84% of homes in Seattle 98144
  • Bigger than 70% of homes in North Beacon Hill
  • Has a smaller lot than 90% of homes in King County
  • Older than 91% of homes in King County

What homes are worth in Seattle 98144

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

This home
$314K$2.5M

This home is worth more than 52% of homes in Seattle 98144.

How it measures up in Seattle 98144

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

Estimated value$812,718
CheaperTypical $798,257Pricier

Pricier than 52% of homes nearby

Price per ft²$421
CheaperTypical $516Pricier

Pricier than 16% of homes nearby

Living area1,930 ft²
SmallerTypical 1,620 ft²Bigger

Bigger than 64% of homes nearby

Lot size3,916 ft²
SmallerTypical 4,095 ft²Bigger

Bigger than 41% of homes nearby

Year built1926
OlderTypical 1961Newer

Newer than 33% of homes nearby

How 3403 20th Ave S ranks against every home in each area.
MeasureThis homeNorth Beacon HillSeattle 98144King County
Estimated valuepricier than$812,71864% of homes52% of homes48% of homes
Price per ft²pricier than$42127% of homes16% of homes33% of homes
Living areabigger than1,930 ft²70% of homes64% of homes53% of homes
Lot sizebigger than3,916 ft²37% of homes41% of homes10% of homes
Year builtnewer than192628% of homes33% of homes9% of homes

About 3403 20th Ave S

How much is 3403 20th Ave S, Seattle, WA worth?

The TopHap Estimate for 3403 20th Ave S, Seattle, WA is $812,718 as of Oct 21, 2026. The likely range is $782,519 to $842,917. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 3403 20th Ave S, Seattle, WA last sell?

3403 20th Ave S, Seattle, WA last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 3403 20th Ave S, Seattle, WA?

3403 20th Ave S, Seattle, WA has 4 bedrooms, 1.8 bathrooms, 1,930 square feet of living space and a 0.09-acre lot.

When was 3403 20th Ave S, Seattle, WA built?

3403 20th Ave S, Seattle, WA was built in 1926, making it 100 years old. The building has 1 story.

What schools serve 3403 20th Ave S, Seattle, WA?

3403 20th Ave S, Seattle, WA is assigned to Kimball Elementary School (elementary), rated C; Franklin High School (high), rated C+; Washington Middle School (middle), rated B-. All sit in Seattle School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 3403 20th Ave S, Seattle, WA compare to other homes in Seattle 98144?

Among the 9,852 homes in Seattle 98144, it is worth more than 52% of them ($812,718 against a typical $798,257), its price per square foot is higher than 16% of them ($421 against a typical $516), it is bigger than 64% of them (1,930 ft² against a typical 1,620 ft²), its lot is bigger than 41% of them (3,916 ft² against a typical 4,095 ft²) and it is newer than 33% of them (1926 against a typical 1961). Measured against all of King County, it is worth more than 48% 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 3403 20th Ave S, Seattle, WA?

The 2026 property tax bill for 3403 20th Ave S, Seattle, WA was $8,401. The county assessed it at $785,000.

More homes on 20th Ave S

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