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Single Family ResidenceResidential
$991,087$514 / 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 Aug 30, 2026
Last sold for $661,000 on Dec 15, 2016

28622 NE BIG ROCK RD

DUVALL, WA 98019
4
Beds
2.3
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.
2.46 ac
Lot SizeThe size of the land the home sits on, from county records.
1997
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

$991K
$942K low$1M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$661,000 · Dec 15, 2016

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$11,960 (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.$1,152,000 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$323,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$829,000
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$1,070,000
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$1,152,000

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.7 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%

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.Forced Air With Air Conditioning
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.Porch · 490 ft²

Transaction History(4)

Sales and refinances filed with the county for this home. Not every transfer is a normal sale, so check the type before comparing prices.

Foreclosure Filings(1)

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

H
Cedarcrest High SchoolA+
High · Grades 9–12 · 1.1 mi
E
Stillwater Elementary SchoolA+
Elementary · Grades KG–5 · 2.4 mi
M
Tolt Middle SchoolB
Middle · Grades 6–8 · 5.6 mi

District: Riverview School District

Neighborhood · ZIP 98019These 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.32
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 100.242

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.37%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.5.4%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.4%
PopulationHow many people live in this area.13,767
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.144 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$150,790
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$162,530
Average tempThe average temperature here across a full year.49°F
Annual precipHow much rain and melted snow falls here in a typical year.66 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

28622 Ne Big Rock Rd 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 more per square foot than 82% of homes in Duvall 98019
  • Smaller than 65% of homes in Duvall 98019
  • Has a bigger lot than 90% of homes in King County
  • Newer than 74% of homes in King County

What homes are worth in Duvall 98019

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

This home
$452K$1.6M

This home is worth more than 61% of homes in Duvall 98019.

How it measures up in Duvall 98019

The dot is this home. The mark in the middle is the typical home in Duvall 98019.

Estimated value$991,087
CheaperTypical $931,433Pricier

Pricier than 61% of homes nearby

Price per ft²$514
CheaperTypical $428Pricier

Pricier than 82% of homes nearby

Living area1,930 ft²
SmallerTypical 2,220 ft²Bigger

Bigger than 35% of homes nearby

Lot size2.46 ac
SmallerTypical 0.32 acBigger

Bigger than 74% of homes nearby

Year built1997
OlderTypical 1998Newer

Newer than 50% of homes nearby

How 28622 Ne Big Rock Rd ranks against every home in each area.
MeasureThis homeDuvall 98019King County
Estimated valuepricier than$991,08761% of homes62% of homes
Price per ft²pricier than$51482% of homes54% of homes
Living areabigger than1,930 ft²35% of homes53% of homes
Lot sizebigger than2.46 ac74% of homes90% of homes
Year builtnewer than199750% of homes74% of homes

About 28622 Ne Big Rock Rd

How much is 28622 Ne Big Rock Rd, Duvall, WA worth?

The TopHap Estimate for 28622 Ne Big Rock Rd, Duvall, WA is $991,087 as of Aug 30, 2026. The likely range is $941,924 to $1,040,250. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 28622 Ne Big Rock Rd, Duvall, WA last sell?

28622 Ne Big Rock Rd, Duvall, WA last sold on Dec 15, 2016 for $661,000, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 28622 Ne Big Rock Rd, Duvall, WA?

28622 Ne Big Rock Rd, Duvall, WA has 4 bedrooms, 2.3 bathrooms and 1,930 square feet of living space.

When was 28622 Ne Big Rock Rd, Duvall, WA built?

28622 Ne Big Rock Rd, Duvall, WA was built in 1997, making it 29 years old. The building has 2 stories.

What schools serve 28622 Ne Big Rock Rd, Duvall, WA?

28622 Ne Big Rock Rd, Duvall, WA is assigned to Cedarcrest High School (high), rated A+; Stillwater Elementary School (elementary), rated A+; Tolt Middle School (middle), rated B. All sit in Riverview School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 28622 Ne Big Rock Rd, Duvall, WA compare to other homes in Duvall 98019?

Among the 4,672 homes in Duvall 98019, it is worth more than 61% of them ($991,087 against a typical $931,433), its price per square foot is higher than 82% of them ($514 against a typical $428), it is bigger than 35% of them (1,930 ft² against a typical 2,220 ft²), its lot is bigger than 74% of them (2.46 ac against a typical 0.32 ac) and it is newer than 50% of them (1997 against a typical 1998). Measured against all of King County, it is worth more than 62% 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 28622 Ne Big Rock Rd, Duvall, WA?

The 2026 property tax bill for 28622 Ne Big Rock Rd, Duvall, WA was $11,960. The county assessed it at $1,152,000.

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