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Single Family ResidenceResidential
$491,797$423 / 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 88How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Oct 21, 2026

1004 MASON ST

BELLINGHAM, WA 98225
4
Beds
1
Baths
1,164 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.
1898
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$492K
$435K low$549K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,983 (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.$479,360 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$286,720
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$192,640
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$465,404
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$479,360

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.Single Family Residence
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.1942
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.Porch · 188 ft²

Transaction History(3)

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 · 1.0 mi
E
Happy Valley Elementary SchoolB
Elementary · Grades PK–5 · 1.4 mi
M
Fairhaven Middle SchoolA-
Middle · Grades 6–8 · 2.3 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

1004 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 less than 80% of homes in Bellingham 98225
  • Costs more per square foot than 69% of homes in Whatcom County
  • Smaller than 73% of homes in Whatcom County
  • Has a smaller lot than 77% of homes in Whatcom County
  • Among the oldest 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
$260K$1.7M

This home is worth more than 20% 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$491,797
CheaperTypical $622,397Pricier

Pricier than 20% of homes nearby

Price per ft²$423
CheaperTypical $456Pricier

Pricier than 38% of homes nearby

Living area1,164 ft²
SmallerTypical 1,445 ft²Bigger

Bigger than 33% of homes nearby

Lot size0.15 ac
SmallerTypical 0.17 acBigger

Bigger than 48% of homes nearby

Year built1898
OlderTypical 1949Newer

Newer than 4% of homes nearby

How 1004 Mason St ranks against every home in each area.
MeasureThis homeSehomeBellingham 98225Whatcom County
Estimated valuepricier than$491,79738% of homes20% of homes28% of homes
Price per ft²pricier than$42358% of homes38% of homes69% of homes
Living areabigger than1,164 ft²36% of homes33% of homes27% of homes
Lot sizebigger than0.15 ac48% of homes48% of homes23% of homes
Year builtnewer than18986% of homes4% of homesalmost no homes

About 1004 Mason St

How much is 1004 Mason St, Bellingham, WA worth?

The TopHap Estimate for 1004 Mason St, Bellingham, WA is $491,797 as of Oct 21, 2026. The likely range is $434,840 to $548,754. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 1004 Mason St, Bellingham, WA last sell?

1004 Mason St, Bellingham, WA last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 1004 Mason St, Bellingham, WA?

1004 Mason St, Bellingham, WA has 4 bedrooms, 1 bathrooms, 1,164 square feet of living space and a 0.15-acre lot.

When was 1004 Mason St, Bellingham, WA built?

1004 Mason St, Bellingham, WA was built in 1898, making it 128 years old. The building has 1 story.

What schools serve 1004 Mason St, Bellingham, WA?

1004 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 1004 Mason St, Bellingham, WA compare to other homes in Bellingham 98225?

Among the 12,993 homes in Bellingham 98225, it is worth more than 20% of them ($491,797 against a typical $622,397), its price per square foot is higher than 38% of them ($423 against a typical $456), it is bigger than 33% of them (1,164 ft² against a typical 1,445 ft²), its lot is bigger than 48% of them (0.15 ac against a typical 0.17 ac) and it is newer than 4% of them (1898 against a typical 1949). Measured against all of Whatcom County, it is worth more than 28% 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 1004 Mason St, Bellingham, WA?

The 2026 property tax bill for 1004 Mason St, Bellingham, WA was $3,983. The county assessed it at $479,360.

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