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Single Family ResidenceResidential
$1,175,614$393 / 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 Sep 24, 2026
Last sold for $1,500,000 on Feb 10, 2025

28616 NE BIG ROCK RD

DUVALL, WA 98019
4
Beds
2.8
Baths
2,990 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.
5.04 ac
Lot SizeThe size of the land the home sits on, from county records.
1975
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

$1.2M
$1.1M low$1.3M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$1,500,000 · Feb 10, 2025

Tax & Assessment

Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$1,124,000 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$432,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$692,000
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$1,044,000
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$1,124,000

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.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.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 · 650 ft²ElevatorShed · 100 ft²

Transaction History(5)

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
Cedarcrest High SchoolA+
High · Grades 9–12 · 1.1 mi
E
Stillwater Elementary SchoolA+
Elementary · Grades KG–5 · 2.5 mi
M
Tolt Middle SchoolB
Middle · Grades 6–8 · 5.7 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

28616 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.

  • Worth more than 83% of homes in Duvall 98019
  • Costs less per square foot than 74% of homes in King County
  • Bigger than 84% of homes in Duvall 98019
  • Has a bigger lot than 94% of homes in King County
  • Older than 90% of homes in Duvall 98019

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
$484K$1.7M

This home is worth more than 83% 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$1,175,614
CheaperTypical $935,281Pricier

Pricier than 83% of homes nearby

Price per ft²$393
CheaperTypical $431Pricier

Pricier than 30% of homes nearby

Living area2,990 ft²
SmallerTypical 2,220 ft²Bigger

Bigger than 84% of homes nearby

Lot size5.04 ac
SmallerTypical 0.32 acBigger

Bigger than 87% of homes nearby

Year built1975
OlderTypical 1998Newer

Newer than 10% of homes nearby

How 28616 Ne Big Rock Rd ranks against every home in each area.
MeasureThis homeDuvall 98019King County
Estimated valuepricier than$1,175,61483% of homes70% of homes
Price per ft²pricier than$39330% of homes26% of homes
Living areabigger than2,990 ft²84% of homes84% of homes
Lot sizebigger than5.04 ac87% of homes94% of homes
Year builtnewer than197510% of homes45% of homes

About 28616 Ne Big Rock Rd

How much is 28616 Ne Big Rock Rd, Duvall, WA worth?

The TopHap Estimate for 28616 Ne Big Rock Rd, Duvall, WA is $1,175,614 as of Sep 24, 2026. The likely range is $1,082,901 to $1,268,326. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 28616 Ne Big Rock Rd, Duvall, WA last sell?

28616 Ne Big Rock Rd, Duvall, WA last sold on Feb 10, 2025 for $1,500,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 28616 Ne Big Rock Rd, Duvall, WA?

28616 Ne Big Rock Rd, Duvall, WA has 4 bedrooms, 2.8 bathrooms and 2,990 square feet of living space.

When was 28616 Ne Big Rock Rd, Duvall, WA built?

28616 Ne Big Rock Rd, Duvall, WA was built in 1975, making it 51 years old. The building has 1 story.

What schools serve 28616 Ne Big Rock Rd, Duvall, WA?

28616 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 28616 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 83% of them ($1,175,614 against a typical $935,281), its price per square foot is higher than 30% of them ($393 against a typical $431), it is bigger than 84% of them (2,990 ft² against a typical 2,220 ft²), its lot is bigger than 87% of them (5.04 ac against a typical 0.32 ac) and it is newer than 10% of them (1975 against a typical 1998). Measured against all of King County, it is worth more than 70% of homes there. These shares are recounted nightly from the full county assessor record for each area, not from active listings.

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