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Single Family ResidenceResidential
$1,442,505$532 / 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 95How 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 $141,500 on Oct 11, 1985

4378 239TH PL SE

SAMMAMISH, WA 98029
3
Beds
2.5
Baths
2,710 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.
0.2 ac
Lot SizeThe size of the land the home sits on, from county records.
1985
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$1.4M
$1.4M low$1.5M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$141,500 · Oct 11, 1985

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$12,618 (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.$1,396,000 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$441,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$955,000
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$1,242,000
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$1,396,000

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.0.20
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, Attached
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 · 390 ft²

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

M
Beaver Lake Middle SchoolA+
Middle · Grades 6–8 · 1.1 mi
E
Endeavor Elementary SchoolA+
Elementary · Grades KG–5 · 1.5 mi
H
Skyline High SchoolA+
High · Grades 9–12 · 2.3 mi

District: Issaquah School District

Neighborhood · ZIP 98029These 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.59
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.110
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.268

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.96%
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.6.5%
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.31,135
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.3,179 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$165,510
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$212,616
Average tempThe average temperature here across a full year.50°F
Annual precipHow much rain and melted snow falls here in a typical year.56 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

4378 239th Pl Se 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 more than 80% of homes in King County
  • Costs less per square foot than 76% of homes in Klahanie
  • Bigger than 86% of homes in Klahanie
  • Older than 96% of homes in Klahanie

What homes are worth in Issaquah 98029

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

This home
$343K$2.7M

This home is worth more than 69% of homes in Issaquah 98029.

How it measures up in Issaquah 98029

The dot is this home. The mark in the middle is the typical home in Issaquah 98029.

Estimated value$1,442,505
CheaperTypical $1,220,206Pricier

Pricier than 69% of homes nearby

Price per ft²$532
CheaperTypical $582Pricier

Pricier than 33% of homes nearby

Living area2,710 ft²
SmallerTypical 1,980 ft²Bigger

Bigger than 78% of homes nearby

Lot size0.2 ac
SmallerTypical 0.18 acBigger

Bigger than 53% of homes nearby

Year built1985
OlderTypical 1997Newer

Newer than 6% of homes nearby

How 4378 239th Pl Se ranks against every home in each area.
MeasureThis homeKlahanieIssaquah 98029King County
Estimated valuepricier than$1,442,50574% of homes69% of homes80% of homes
Price per ft²pricier than$53224% of homes33% of homes56% of homes
Living areabigger than2,710 ft²86% of homes78% of homes78% of homes
Lot sizebigger than0.2 ac63% of homes53% of homes51% of homes
Year builtnewer than19854% of homes6% of homes59% of homes

About 4378 239th Pl Se

How much is 4378 239th Pl Se, Sammamish, WA worth?

The TopHap Estimate for 4378 239th Pl Se, Sammamish, WA is $1,442,505 as of Sep 24, 2026. The likely range is $1,371,334 to $1,513,676. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 4378 239th Pl Se, Sammamish, WA last sell?

4378 239th Pl Se, Sammamish, WA last sold on Oct 11, 1985 for $141,500, according to the county's recorded deed.

How big is 4378 239th Pl Se, Sammamish, WA?

4378 239th Pl Se, Sammamish, WA has 3 bedrooms, 2.5 bathrooms, 2,710 square feet of living space and a 0.20-acre lot.

When was 4378 239th Pl Se, Sammamish, WA built?

4378 239th Pl Se, Sammamish, WA was built in 1985, making it 41 years old. The building has 2 stories.

What schools serve 4378 239th Pl Se, Sammamish, WA?

4378 239th Pl Se, Sammamish, WA is assigned to Beaver Lake Middle School (middle), rated A+; Endeavor Elementary School (elementary), rated A+; Skyline High School (high), rated A+. All sit in Issaquah School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 4378 239th Pl Se, Sammamish, WA compare to other homes in Issaquah 98029?

Among the 9,416 homes in Issaquah 98029, it is worth more than 69% of them ($1,442,505 against a typical $1,220,206), its price per square foot is higher than 33% of them ($532 against a typical $582), it is bigger than 78% of them (2,710 ft² against a typical 1,980 ft²), its lot is bigger than 53% of them (0.2 ac against a typical 0.18 ac) and it is newer than 6% of them (1985 against a typical 1997). Measured against all of King County, it is worth more than 80% 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 4378 239th Pl Se, Sammamish, WA?

The 2026 property tax bill for 4378 239th Pl Se, Sammamish, WA was $12,618. The county assessed it at $1,396,000.

More homes on 239th Pl Se

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