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Single Family ResidenceResidential
$8,377,157$1,077 / 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 90How 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 $9,200,000 on Apr 8, 2024

678 W PROSPECT ST

SEATTLE, WA 98119
11
Beds
5.8
Baths
7,780 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.
0.54 ac
Lot SizeThe size of the land the home sits on, from county records.
1905
Year BuiltThe year the home was originally built, according to county records.
3
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$8.4M
$7.5M low$9.2M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$9,200,000 · Apr 8, 2024

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$81,101 (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.$7,878,000 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$4,352,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$3,526,000
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$7,375,000
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$7,878,000

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.0.54
HeatingThe type of heating system in the home.Hot Water
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
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Deck · 780 ft²Porch · 80 ft²

Transaction History(7)

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
McClure Middle SchoolA-
Middle · Grades 6–8 · 0.6 mi
E
John Hay Elementary SchoolB-
Elementary · Grades PK–5 · 0.7 mi
H
Lincoln High SchoolA+
High · Grades 9–12 · 2.5 mi

District: Seattle School District

Neighborhood · ZIP 98119These 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.123
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 100.365

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.94%
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.5.8%
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.25,934
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.9,344 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$124,172
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$168,362
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

678 W Prospect 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.

  • Among the most valuable homes in West Queen Anne
  • Costs more per square foot than 98% of homes in King County
  • Among the largest homes in King County
  • Has a bigger lot than 91% of homes in Seattle 98119
  • Among the oldest homes in King County

What homes are worth in Seattle 98119

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

This home
$280K$3.2M

This home is worth more than almost all homes in Seattle 98119.

How it measures up in Seattle 98119

The dot is this home. The mark in the middle is the typical home in Seattle 98119.

Estimated value$8,377,157
CheaperTypical $1,015,914Pricier

Pricier than almost all homes nearby

Price per ft²$1077
CheaperTypical $602Pricier

Pricier than 97% of homes nearby

Living area7,780 ft²
SmallerTypical 1,680 ft²Bigger

Bigger than 97% of homes nearby

Lot size0.54 ac
SmallerTypical 0.12 acBigger

Bigger than 91% of homes nearby

Year built1905
OlderTypical 1957Newer

Newer than 6% of homes nearby

How 678 W Prospect St ranks against every home in each area.
MeasureThis homeWest Queen AnneSeattle 98119King County
Estimated valuepricier than$8,377,157almost all homesalmost all homesalmost all homes
Price per ft²pricier than$107796% of homes97% of homes98% of homes
Living areabigger than7,780 ft²98% of homes97% of homesalmost all homes
Lot sizebigger than0.54 ac89% of homes91% of homes78% of homes
Year builtnewer than190511% of homes6% of homesalmost no homes

About 678 W Prospect St

How much is 678 W Prospect St, Seattle, WA worth?

The TopHap Estimate for 678 W Prospect St, Seattle, WA is $8,377,157 as of Aug 30, 2026. The likely range is $7,524,823 to $9,229,491. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 678 W Prospect St, Seattle, WA last sell?

678 W Prospect St, Seattle, WA last sold on Apr 8, 2024 for $9,200,000, according to the county's recorded deed.

How big is 678 W Prospect St, Seattle, WA?

678 W Prospect St, Seattle, WA has 11 bedrooms, 5.8 bathrooms, 7,780 square feet of living space and a 0.54-acre lot.

When was 678 W Prospect St, Seattle, WA built?

678 W Prospect St, Seattle, WA was built in 1905, making it 121 years old.

What schools serve 678 W Prospect St, Seattle, WA?

678 W Prospect St, Seattle, WA is assigned to McClure Middle School (middle), rated A-; John Hay Elementary School (elementary), rated B-; Lincoln 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 678 W Prospect St, Seattle, WA compare to other homes in Seattle 98119?

Among the 7,016 homes in Seattle 98119, it is worth more than almost all of them ($8,377,157 against a typical $1,015,914), its price per square foot is higher than 97% of them ($1077 against a typical $602), it is bigger than 97% of them (7,780 ft² against a typical 1,680 ft²), its lot is bigger than 91% of them (0.54 ac against a typical 0.12 ac) and it is newer than 6% of them (1905 against a typical 1957). Measured against all of King County, it is worth more than almost all 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 678 W Prospect St, Seattle, WA?

The 2026 property tax bill for 678 W Prospect St, Seattle, WA was $81,101. The county assessed it at $7,878,000.

More homes on W Prospect St

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