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Single Family ResidenceResidential
$1,488,611$800 / 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 93How 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 $725,000 on Aug 11, 2017

4006 W PROSPER ST

SEATTLE, WA 98199
3
Beds
1.8
Baths
1,860 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.
0.13 ac
Lot SizeThe size of the land the home sits on, from county records.
1941
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

$1.5M
$1.4M low$1.6M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$725,000 · Aug 11, 2017

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$11,982 (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.$1,126,000 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$826,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$300,000
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$1,100,000
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$1,126,000

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.0.13
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.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 · 530 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
Lawton Elementary SchoolA
Elementary · Grades KG–5 · 1.0 mi
H
Ballard High SchoolA+
High · Grades 9–12 · 2.5 mi
M
McClure Middle SchoolA-
Middle · Grades 6–8 · 2.5 mi

District: Seattle School District

Neighborhood · ZIP 98199These 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.85
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.103
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.364

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.41%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.6.0%
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.23,501
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.4,060 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$156,493
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$193,204
Average tempThe average temperature here across a full year.52°F
Annual precipHow much rain and melted snow falls here in a typical year.38 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

4006 W Prosper 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 more than 83% of homes in King County
  • Costs more per square foot than 93% of homes in King County
  • Smaller than 77% of homes in Briarcliff
  • Has a smaller lot than 77% of homes in King County
  • Older than 86% of homes in King County

What homes are worth in Seattle 98199

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

This home
$306K$3.6M

This home is worth more than 62% of homes in Seattle 98199.

How it measures up in Seattle 98199

The dot is this home. The mark in the middle is the typical home in Seattle 98199.

Estimated value$1,488,611
CheaperTypical $1,303,885Pricier

Pricier than 62% of homes nearby

Price per ft²$800
CheaperTypical $653Pricier

Pricier than 79% of homes nearby

Living area1,860 ft²
SmallerTypical 2,000 ft²Bigger

Bigger than 45% of homes nearby

Lot size0.13 ac
SmallerTypical 0.14 acBigger

Bigger than 42% of homes nearby

Year built1941
OlderTypical 1952Newer

Newer than 29% of homes nearby

How 4006 W Prosper St ranks against every home in each area.
MeasureThis homeBriarcliffSeattle 98199King County
Estimated valuepricier than$1,488,61129% of homes62% of homes83% of homes
Price per ft²pricier than$80059% of homes79% of homes93% of homes
Living areabigger than1,860 ft²23% of homes45% of homes50% of homes
Lot sizebigger than0.13 ac37% of homes42% of homes23% of homes
Year builtnewer than194142% of homes29% of homes14% of homes

About 4006 W Prosper St

How much is 4006 W Prosper St, Seattle, WA worth?

The TopHap Estimate for 4006 W Prosper St, Seattle, WA is $1,488,611 as of Aug 30, 2026. The likely range is $1,384,287 to $1,592,935. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 4006 W Prosper St, Seattle, WA last sell?

4006 W Prosper St, Seattle, WA last sold on Aug 11, 2017 for $725,000, according to the county's recorded deed.

How big is 4006 W Prosper St, Seattle, WA?

4006 W Prosper St, Seattle, WA has 3 bedrooms, 1.8 bathrooms, 1,860 square feet of living space and a 0.13-acre lot.

When was 4006 W Prosper St, Seattle, WA built?

4006 W Prosper St, Seattle, WA was built in 1941, making it 85 years old. The building has 1 story.

What schools serve 4006 W Prosper St, Seattle, WA?

4006 W Prosper St, Seattle, WA is assigned to Lawton Elementary School (elementary), rated A; Ballard High School (high), rated A+; McClure Middle School (middle), rated A-. All sit in Seattle School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 4006 W Prosper St, Seattle, WA compare to other homes in Seattle 98199?

Among the 8,105 homes in Seattle 98199, it is worth more than 62% of them ($1,488,611 against a typical $1,303,885), its price per square foot is higher than 79% of them ($800 against a typical $653), it is bigger than 45% of them (1,860 ft² against a typical 2,000 ft²), its lot is bigger than 42% of them (0.13 ac against a typical 0.14 ac) and it is newer than 29% of them (1941 against a typical 1952). Measured against all of King County, it is worth more than 83% 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 4006 W Prosper St, Seattle, WA?

The 2026 property tax bill for 4006 W Prosper St, Seattle, WA was $11,982. The county assessed it at $1,126,000.

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