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Single Family ResidenceResidential
$684,946$1,427 / 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 92How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Aug 30, 2026
Last sold for $370,000 on Jun 30, 2011

20430 SE 8TH ST

SAMMAMISH, WA 98074
1
Beds
1.8
Baths
480 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.
7.79 ac
Lot SizeThe size of the land the home sits on, from county records.
1946
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$685K
$631K low$739K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$370,000 · Jun 30, 2011

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$13,046 (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.$1,456,000 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$1,455,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$1,000
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$1,456,000

Climate Risk

Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.6 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.6%

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
HeatingThe type of heating system in the home.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.Porch · 40 ft²

Transaction History(1)

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
Eastlake High SchoolA+
High · Grades 9–12 · 1.8 mi
E
Samantha Smith Elementary SchoolA
Elementary · Grades KG–5 · 2.2 mi
M
Inglewood Middle SchoolA
Middle · Grades 6–8 · 2.5 mi

District: Lake Washington School District

Neighborhood · ZIP 98074These 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.20
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 100.287

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.97%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.43%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.4.5%
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.30,936
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,488 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$201,628
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$241,805
Average tempThe average temperature here across a full year.51°F
Annual precipHow much rain and melted snow falls here in a typical year.47 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

20430 Se 8th St 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 95% of homes in Sammamish 98074
  • Among the highest price per square foot in Sammamish 98074
  • Among the smallest homes in Sammamish 98074
  • Has a bigger lot than 96% of homes in King County
  • Among the oldest homes in Sammamish 98074

What homes are worth in Sammamish 98074

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

This home
$488K$3M

This home is worth more than 5% of homes in Sammamish 98074.

How it measures up in Sammamish 98074

The dot is this home. The mark in the middle is the typical home in Sammamish 98074.

Estimated value$684,946
CheaperTypical $1,483,982Pricier

Pricier than 5% of homes nearby

Price per ft²$1427
CheaperTypical $575Pricier

Pricier than almost all homes nearby

Living area480 ft²
SmallerTypical 2,630 ft²Bigger

Smaller than almost all homes nearby

Lot size7.79 ac
SmallerTypical 0.23 acBigger

Bigger than 94% of homes nearby

Year built1946
OlderTypical 1991Newer

Older than almost all homes nearby

How 20430 Se 8th St ranks against every home in each area.
MeasureThis homeSammamish 98074King County
Estimated valuepricier than$684,9465% of homes37% of homes
Price per ft²pricier than$1427almost all homesalmost all homes
Living areabigger than480 ft²almost no homesalmost no homes
Lot sizebigger than7.79 ac94% of homes96% of homes
Year builtnewer than1946almost no homes16% of homes

About 20430 Se 8th St

How much is 20430 Se 8th St, Sammamish, WA worth?

The TopHap Estimate for 20430 Se 8th St, Sammamish, WA is $684,946 as of Aug 30, 2026. The likely range is $630,968 to $738,924. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 20430 Se 8th St, Sammamish, WA last sell?

20430 Se 8th St, Sammamish, WA last sold on Jun 30, 2011 for $370,000, according to the county's recorded deed.

How big is 20430 Se 8th St, Sammamish, WA?

20430 Se 8th St, Sammamish, WA has 1 bedrooms, 1.8 bathrooms and 480 square feet of living space.

When was 20430 Se 8th St, Sammamish, WA built?

20430 Se 8th St, Sammamish, WA was built in 1946, making it 80 years old. The building has 1 story.

What schools serve 20430 Se 8th St, Sammamish, WA?

20430 Se 8th St, Sammamish, WA is assigned to Eastlake High School (high), rated A+; Samantha Smith Elementary School (elementary), rated A; Inglewood Middle School (middle), rated A. All sit in Lake Washington School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 20430 Se 8th St, Sammamish, WA compare to other homes in Sammamish 98074?

Among the 9,921 homes in Sammamish 98074, it is worth more than 5% of them ($684,946 against a typical $1,483,982), its price per square foot is higher than almost all of them ($1427 against a typical $575), it is bigger than almost none of them (480 ft² against a typical 2,630 ft²), its lot is bigger than 94% of them (7.79 ac against a typical 0.23 ac) and it is newer than almost none of them (1946 against a typical 1991). Measured against all of King County, it is worth more than 37% 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 20430 Se 8th St, Sammamish, WA?

The 2026 property tax bill for 20430 Se 8th St, Sammamish, WA was $13,046. The county assessed it at $1,456,000.

More homes on Se 8th St

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Assigned schools

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