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Single Family ResidenceResidential
$431,323$425 / 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 90How 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 $449,999 on Nov 15, 2024

4730 SANDCASTLE DR

BLAINE, WA 98230
3
Beds
2
Baths
1,014 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.
0.13 ac
Lot SizeThe size of the land the home sits on, from county records.
2006
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$431K
$386K low$477K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$449,999 · Nov 15, 2024

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,872 (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.$413,826 (2024)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$180,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$233,826
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$413,826
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$413,826

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.33
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
8
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
45
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
96
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
Lot (acres)The size of the land the home sits on, from county records.0.13
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.Composition Shingle
HeatingThe type of heating system in the home.Forced Air
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.Patio · 80 ft²Porch · 72 ft²

Transaction History(6)

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(2)

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

E
Blaine Primary School
Elementary · Grades PK–2 · 5.5 mi
M
Blaine Middle SchoolB+
Middle · Grades 6–8 · 5.5 mi
H
Blaine High SchoolB-
High · Grades 9–12 · 5.6 mi

District: Blaine School District

Neighborhood · ZIP 98230These 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.126
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 100.210

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.84%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.19%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.8.4%
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.14,154
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.296 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$80,530
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$98,627
Average tempThe average temperature here across a full year.50°F
Annual precipHow much rain and melted snow falls here in a typical year.46 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

4730 Sandcastle Dr 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 71% of homes in Whatcom County
  • Costs more per square foot than 74% of homes in Blaine 98230
  • Smaller than 79% of homes in Whatcom County
  • Has a smaller lot than 80% of homes in Whatcom County
  • Newer than 83% of homes in Whatcom County

What homes are worth in Blaine 98230

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

This home
$244K$1.6M

This home is worth more than 31% of homes in Blaine 98230.

How it measures up in Blaine 98230

The dot is this home. The mark in the middle is the typical home in Blaine 98230.

Estimated value$431,323
CheaperTypical $530,562Pricier

Pricier than 31% of homes nearby

Price per ft²$425
CheaperTypical $359Pricier

Pricier than 74% of homes nearby

Living area1,014 ft²
SmallerTypical 1,354 ft²Bigger

Bigger than 31% of homes nearby

Lot size0.13 ac
SmallerTypical 0.21 acBigger

Bigger than 21% of homes nearby

Year built2006
OlderTypical 1994Newer

Newer than 77% of homes nearby

How 4730 Sandcastle Dr ranks against every home in each area.
MeasureThis homeBlaine 98230Whatcom County
Estimated valuepricier than$431,32331% of homes29% of homes
Price per ft²pricier than$42574% of homes74% of homes
Living areabigger than1,014 ft²31% of homes21% of homes
Lot sizebigger than0.13 ac21% of homes20% of homes
Year builtnewer than200677% of homes83% of homes

About 4730 Sandcastle Dr

How much is 4730 Sandcastle Dr, Blaine, WA worth?

The TopHap Estimate for 4730 Sandcastle Dr, Blaine, WA is $431,323 as of Aug 30, 2026. The likely range is $386,140 to $476,506. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 4730 Sandcastle Dr, Blaine, WA last sell?

4730 Sandcastle Dr, Blaine, WA last sold on Nov 15, 2024 for $449,999, according to the county's recorded deed. TopHap holds 5 recorded sales for this parcel.

How big is 4730 Sandcastle Dr, Blaine, WA?

4730 Sandcastle Dr, Blaine, WA has 3 bedrooms, 2 bathrooms, 1,014 square feet of living space and a 0.13-acre lot.

When was 4730 Sandcastle Dr, Blaine, WA built?

4730 Sandcastle Dr, Blaine, WA was built in 2006, making it 20 years old. The building has 1 story.

What schools serve 4730 Sandcastle Dr, Blaine, WA?

4730 Sandcastle Dr, Blaine, WA is assigned to Blaine Primary School (elementary); Blaine Middle School (middle), rated B+; Blaine High School (high), rated B-. All sit in Blaine School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 4730 Sandcastle Dr, Blaine, WA compare to other homes in Blaine 98230?

Among the 11,320 homes in Blaine 98230, it is worth more than 31% of them ($431,323 against a typical $530,562), its price per square foot is higher than 74% of them ($425 against a typical $359), it is bigger than 31% of them (1,014 ft² against a typical 1,354 ft²), its lot is bigger than 21% of them (0.13 ac against a typical 0.21 ac) and it is newer than 77% of them (2006 against a typical 1994). Measured against all of Whatcom County, it is worth more than 29% 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 4730 Sandcastle Dr, Blaine, WA?

The 2024 property tax bill for 4730 Sandcastle Dr, Blaine, WA was $2,872. The county assessed it at $413,826.

More homes on Sandcastle Dr

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