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Single Family ResidenceResidential
$904,333$499 / 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 Aug 30, 2026
Last sold for $750,000 on May 25, 2007

18421 E STATE ROUTE 106

BELFAIR, WA 98528
3
Beds
3
Baths
1,812 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.
0.4 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

$904K
$831K low$978K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$750,000 · May 25, 2007

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$11,028 (2024)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$1,357,030 (2024)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$278,365
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$1,078,665
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$1,357,030
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$1,357,030

Climate Risk

Overall riskThe average of the five hazard scores below, on a 0 to 100 scale. Higher means greater projected risk over the coming decades.55
99
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
26
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
40
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
99
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
13
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.197 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%
FEMA Flood ZoneFEMA's flood zone for this address. Zones starting with A or V are high risk, and lenders usually require flood insurance there.1 percent flood zone

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
CountyMason
Lot (acres)The size of the land the home sits on, from county records.0.40
ConstructionThe main material the home's frame and walls are built from.Wood (Unspecified)
FoundationWhat the home is built on, such as a concrete slab, a crawl space, or a basement.Concrete
RoofThe main material covering the roof, such as asphalt shingle or tile.Metal
HeatingThe type of heating system in the home.Heat Pump
FireplaceWhether the home has a fireplace, and what kind.Single
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Deck · 1,011 ft²Patio · 824 ft²

Transaction History(1)

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
Hawkins Middle SchoolC-
Middle · Grades 6–8 · 1.2 mi
H
North Mason High SchoolC-
High · Grades 9–12 · 1.3 mi
E
Belfair Elementary SchoolC
Elementary · Grades PK–5 · 2.1 mi

District: North Mason School District

Neighborhood · ZIP 98528These 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.96
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 100.257

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.81%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.14%
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.1.4%
PopulationHow many people live in this area.12,194
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.140 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$85,539
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$102,142
Average tempThe average temperature here across a full year.51°F
Annual precipHow much rain and melted snow falls here in a typical year.61 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.33%

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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

18421 E State Route 106 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 95% of homes in Mason County
  • Costs more per square foot than 90% of homes in Mason County
  • Bigger than 75% of homes in Mason County
  • Newer than 69% of homes in Belfair 98528

What homes are worth in Belfair 98528

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

This home
$143K$1.2M

This home is worth more than 93% of homes in Belfair 98528.

How it measures up in Belfair 98528

The dot is this home. The mark in the middle is the typical home in Belfair 98528.

Estimated value$904,333
CheaperTypical $437,410Pricier

Pricier than 93% of homes nearby

Price per ft²$499
CheaperTypical $297Pricier

Pricier than 88% of homes nearby

Living area1,812 ft²
SmallerTypical 1,440 ft²Bigger

Bigger than 73% of homes nearby

Lot size0.4 ac
SmallerTypical 0.61 acBigger

Bigger than 40% of homes nearby

Year built1997
OlderTypical 1988Newer

Newer than 69% of homes nearby

How 18421 E State Route 106 ranks against every home in each area.
MeasureThis homeBelfair 98528Mason County
Estimated valuepricier than$904,33393% of homes95% of homes
Price per ft²pricier than$49988% of homes90% of homes
Living areabigger than1,812 ft²73% of homes75% of homes
Lot sizebigger than0.4 ac40% of homes48% of homes
Year builtnewer than199769% of homes68% of homes

About 18421 E State Route 106

How much is 18421 E State Route 106, Belfair, WA worth?

The TopHap Estimate for 18421 E State Route 106, Belfair, WA is $904,333 as of Aug 30, 2026. The likely range is $830,568 to $978,098. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 18421 E State Route 106, Belfair, WA last sell?

18421 E State Route 106, Belfair, WA last sold on May 25, 2007 for $750,000, according to the county's recorded deed.

How big is 18421 E State Route 106, Belfair, WA?

18421 E State Route 106, Belfair, WA has 3 bedrooms, 3 bathrooms, 1,812 square feet of living space and a 0.40-acre lot.

When was 18421 E State Route 106, Belfair, WA built?

18421 E State Route 106, Belfair, WA was built in 1997, making it 29 years old. The building has 2 stories.

What schools serve 18421 E State Route 106, Belfair, WA?

18421 E State Route 106, Belfair, WA is assigned to Hawkins Middle School (middle), rated C-; North Mason High School (high), rated C-; Belfair Elementary School (elementary), rated C. All sit in North Mason School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 18421 E State Route 106, Belfair, WA compare to other homes in Belfair 98528?

Among the 5,624 homes in Belfair 98528, it is worth more than 93% of them ($904,333 against a typical $437,410), its price per square foot is higher than 88% of them ($499 against a typical $297), it is bigger than 73% of them (1,812 ft² against a typical 1,440 ft²), its lot is bigger than 40% of them (0.4 ac against a typical 0.61 ac) and it is newer than 69% of them (1997 against a typical 1988). Measured against all of Mason County, it is worth more than 95% 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 18421 E State Route 106, Belfair, WA?

The 2024 property tax bill for 18421 E State Route 106, Belfair, WA was $11,028. The county assessed it at $1,357,030.

More homes on E State Route 106

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