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Duplex (2 Units, Any Combination)Residential
$594,341$304 / 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 89How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Jul 14, 2026
Last sold for $605,000 on Feb 25, 2020

918 MASON ST

BELLINGHAM, WA 98225
4
Beds
2
Baths
1,954 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.
0.15 ac
Lot SizeThe size of the land the home sits on, from county records.
1900
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$594K
$531K low$658K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$605,000 · Feb 25, 2020

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$5,793 (2025)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$728,900 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$360,448
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$368,452
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$707,679
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$728,900

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.30
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
9
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
48
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
79
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
17
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
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.minimal

Scores 0–100; higher = greater projected risk.

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Duplex (2 Units, Any Combination)
CountyWHATCOM
Effective Year BuiltAn adjusted build year that accounts for condition and major remodels. A big renovation can make a home count as newer than it is.1958
Lot (acres)The size of the land the home sits on, from county records.0.15
RoofThe main material covering the roof, such as asphalt shingle or tile.Composition Shingle
HeatingThe type of heating system in the home.Wood Furnace
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 · 40 ft²Porch · 128 ft²

Transaction History(2)

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
Sehome High SchoolA
High · Grades 9–12 · 0.9 mi
E
Happy Valley Elementary SchoolB
Elementary · Grades PK–5 · 1.3 mi
M
Fairhaven Middle SchoolA-
Middle · Grades 6–8 · 2.2 mi

District: Bellingham School District

Neighborhood · ZIP 98225These 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.128
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.99
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.213

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.26%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.20%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.3%
PopulationHow many people live in this area.47,186
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.3,199 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$62,442
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$83,004
Average tempThe average temperature here across a full year.50°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

918 Mason 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 68% of homes in Sehome
  • Costs less per square foot than 89% of homes in Bellingham 98225
  • Bigger than 79% of homes in Bellingham 98225
  • Has a smaller lot than 75% of homes in Whatcom County
  • Older than 98% of homes in Whatcom County

What homes are worth in Bellingham 98225

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

This home
$248K$1.7M

This home is worth more than 58% of homes in Bellingham 98225.

How it measures up in Bellingham 98225

The dot is this home. The mark in the middle is the typical home in Bellingham 98225.

Estimated value$594,341
CheaperTypical $548,396Pricier

Pricier than 58% of homes nearby

Price per ft²$304
CheaperTypical $420Pricier

Pricier than 11% of homes nearby

Living area1,954 ft²
SmallerTypical 1,387 ft²Bigger

Bigger than 79% of homes nearby

Lot size0.15 ac
SmallerTypical 0.16 acBigger

Bigger than 48% of homes nearby

Year built1900
OlderTypical 1949Newer

Newer than 9% of homes nearby

How 918 Mason St ranks against every home in each area.
MeasureThis homeSehomeBellingham 98225Whatcom County
Estimated valuepricier than$594,34168% of homes58% of homes60% of homes
Price per ft²pricier than$30414% of homes11% of homes29% of homes
Living areabigger than1,954 ft²75% of homes79% of homes73% of homes
Lot sizebigger than0.15 ac41% of homes48% of homes25% of homes
Year builtnewer than190010% of homes9% of homes2% of homes

About 918 Mason St

How much is 918 Mason St, Bellingham, WA worth?

The TopHap Estimate for 918 Mason St, Bellingham, WA is $594,341 as of Jul 14, 2026. The likely range is $531,063 to $657,619. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 918 Mason St, Bellingham, WA last sell?

918 Mason St, Bellingham, WA last sold on Feb 25, 2020 for $605,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 918 Mason St, Bellingham, WA?

918 Mason St, Bellingham, WA has 4 bedrooms, 2 bathrooms, 1,954 square feet of living space and a 0.15-acre lot.

When was 918 Mason St, Bellingham, WA built?

918 Mason St, Bellingham, WA was built in 1900, making it 126 years old. The building has 1 story.

What schools serve 918 Mason St, Bellingham, WA?

918 Mason St, Bellingham, WA is assigned to Sehome High School (high), rated A; Happy Valley Elementary School (elementary), rated B; Fairhaven Middle School (middle), rated A-. All sit in Bellingham School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 918 Mason St, Bellingham, WA compare to other homes in Bellingham 98225?

Among the 12,596 homes in Bellingham 98225, it is worth more than 58% of them ($594,341 against a typical $548,396), its price per square foot is higher than 11% of them ($304 against a typical $420), it is bigger than 79% of them (1,954 ft² against a typical 1,387 ft²), its lot is bigger than 48% of them (0.15 ac against a typical 0.16 ac) and it is newer than 9% of them (1900 against a typical 1949). Measured against all of Whatcom County, it is worth more than 60% 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 918 Mason St, Bellingham, WA?

The 2025 property tax bill for 918 Mason St, Bellingham, WA was $5,793. The county assessed it at $728,900.

More homes on Mason St

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