Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$709,386$295 / 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 95How 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 $305,485 on Sep 12, 2016

4367 CASTLEROCK DR

BLAINE, WA 98230
2
Beds
2
Baths
2,402 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.
0.2 ac
Lot SizeThe size of the land the home sits on, from county records.
2009
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
3
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$709K
$672K low$747K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$305,485 · Sep 12, 2016

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,734 (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.$542,617 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$166,650
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$375,967
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$537,244
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$542,617

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.37
19
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
11
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
44
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
97
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.0.20
RoofThe main material covering the roof, such as asphalt shingle or tile.Composition Shingle
HeatingThe type of heating system in the home.Hot Water
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.Patio · 180 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.

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 · 2.8 mi
M
Blaine Middle SchoolB+
Middle · Grades 6–8 · 2.9 mi
H
Blaine High SchoolB-
High · Grades 9–12 · 2.9 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%

Owner Tools

Do you own this home?
Claim this home

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

4367 Castlerock 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 more than 70% of homes in Blaine 98230
  • Costs less per square foot than 89% of homes in Blaine 98230
  • Bigger than 87% of homes in Blaine 98230
  • Newer than 87% 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
$247K$1.5M

This home is worth more than 70% 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$709,386
CheaperTypical $570,561Pricier

Pricier than 70% of homes nearby

Price per ft²$295
CheaperTypical $374Pricier

Pricier than 11% of homes nearby

Living area2,402 ft²
SmallerTypical 1,344 ft²Bigger

Bigger than 87% of homes nearby

Lot size0.2 ac
SmallerTypical 0.21 acBigger

Bigger than 47% of homes nearby

Year built2009
OlderTypical 1994Newer

Newer than 84% of homes nearby

How 4367 Castlerock Dr ranks against every home in each area.
MeasureThis homeBlaine 98230Whatcom County
Estimated valuepricier than$709,38670% of homes68% of homes
Price per ft²pricier than$29511% of homes13% of homes
Living areabigger than2,402 ft²87% of homes86% of homes
Lot sizebigger than0.2 ac47% of homes41% of homes
Year builtnewer than200984% of homes87% of homes

About 4367 Castlerock Dr

How much is 4367 Castlerock Dr, Blaine, WA worth?

The TopHap Estimate for 4367 Castlerock Dr, Blaine, WA is $709,386 as of Sep 24, 2026. The likely range is $671,956 to $746,816. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 4367 Castlerock Dr, Blaine, WA last sell?

4367 Castlerock Dr, Blaine, WA last sold on Sep 12, 2016 for $305,485, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 4367 Castlerock Dr, Blaine, WA?

4367 Castlerock Dr, Blaine, WA has 2 bedrooms, 2 bathrooms, 2,402 square feet of living space and a 0.20-acre lot.

When was 4367 Castlerock Dr, Blaine, WA built?

4367 Castlerock Dr, Blaine, WA was built in 2009, making it 17 years old. The building has 1 story.

What schools serve 4367 Castlerock Dr, Blaine, WA?

4367 Castlerock 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 4367 Castlerock Dr, Blaine, WA compare to other homes in Blaine 98230?

Among the 11,347 homes in Blaine 98230, it is worth more than 70% of them ($709,386 against a typical $570,561), its price per square foot is higher than 11% of them ($295 against a typical $374), it is bigger than 87% of them (2,402 ft² against a typical 1,344 ft²), its lot is bigger than 47% of them (0.2 ac against a typical 0.21 ac) and it is newer than 84% of them (2009 against a typical 1994). Measured against all of Whatcom County, it is worth more than 68% 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 4367 Castlerock Dr, Blaine, WA?

The 2025 property tax bill for 4367 Castlerock Dr, Blaine, WA was $3,734. The county assessed it at $542,617.

More homes on Castlerock Dr

Closest homes

More homes in Blaine 98230

Assigned schools

Explore the area

See this home in context

Open 4367 Castlerock Dr on TopHap’s interactive map to compare it against every sale nearby, overlay school zones and flood risk, and run a CMA.

Open in map
A flyover of TopHap's photorealistic 3D map, with recorded sale prices pinned to homes
Search any address, city, zip, or county…3D$1.9M$6.25MOpen in map