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Single Family ResidenceResidential
$524,440$388 / 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 $25,000 on Sep 26, 2018

4430 W CASTLEBAR DR

BOISE, ID 83703
3
Beds
1.5
Baths
1,350 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.
0.17 ac
Lot SizeThe size of the land the home sits on, from county records.
1973
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

$524K
$499K low$550K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$25,000 · Sep 26, 2018

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,514 (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.$441,800 (2026)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$423,300
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$441,800

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyADA
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.2008
Lot (acres)The size of the land the home sits on, from county records.0.17
RoofThe main material covering the roof, such as asphalt shingle or tile.Composition Shingle
HeatingThe type of heating system in the home.Yes
CoolingThe type of cooling or air conditioning in the home.Yes
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 · 110 ft²Porch · 20 ft²

Transaction History(5)

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
Collister Elementary SchoolA+
Elementary · Grades PK–6 · 0.3 mi
M
Hillside Junior High SchoolC
Middle · Grades 7–9 · 0.7 mi
H
Boise Senior High SchoolA-
High · Grades 9–12 · 3.4 mi

District: Boise City Independent School District 1

Neighborhood · ZIP 83703These 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.114
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.66

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.96%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.33%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.7.4%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.2%
PopulationHow many people live in this area.19,740
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,019 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$74,014
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$97,744
Average tempThe average temperature here across a full year.50°F
Annual precipHow much rain and melted snow falls here in a typical year.13 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.64%

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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

4430 W Castlebar 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.

  • Costs more per square foot than 87% of homes in Ada County
  • Smaller than 82% of homes in Ada County
  • Has a smaller lot than 68% of homes in Collister
  • Older than 84% of homes in Ada County

What homes are worth in Boise 83703

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

This home
$306K$1.5M

This home is worth more than 42% of homes in Boise 83703.

How it measures up in Boise 83703

The dot is this home. The mark in the middle is the typical home in Boise 83703.

Estimated value$524,440
CheaperTypical $565,199Pricier

Pricier than 42% of homes nearby

Price per ft²$388
CheaperTypical $361Pricier

Pricier than 68% of homes nearby

Living area1,350 ft²
SmallerTypical 1,660 ft²Bigger

Bigger than 31% of homes nearby

Lot size0.17 ac
SmallerTypical 0.19 acBigger

Bigger than 37% of homes nearby

Year built1973
OlderTypical 1984Newer

Newer than 35% of homes nearby

How 4430 W Castlebar Dr ranks against every home in each area.
MeasureThis homeCollisterBoise 83703Ada County
Estimated valuepricier than$524,44041% of homes42% of homes47% of homes
Price per ft²pricier than$38878% of homes68% of homes87% of homes
Living areabigger than1,350 ft²27% of homes31% of homes18% of homes
Lot sizebigger than0.17 ac32% of homes37% of homes37% of homes
Year builtnewer than197324% of homes35% of homes16% of homes

About 4430 W Castlebar Dr

How much is 4430 W Castlebar Dr, Boise, ID worth?

The TopHap Estimate for 4430 W Castlebar Dr, Boise, ID is $524,440 as of Sep 24, 2026. The likely range is $498,682 to $550,198. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 4430 W Castlebar Dr, Boise, ID last sell?

4430 W Castlebar Dr, Boise, ID last sold on Sep 26, 2018 for $25,000, according to the county's recorded deed.

How big is 4430 W Castlebar Dr, Boise, ID?

4430 W Castlebar Dr, Boise, ID has 3 bedrooms, 1.5 bathrooms, 1,350 square feet of living space and a 0.17-acre lot.

When was 4430 W Castlebar Dr, Boise, ID built?

4430 W Castlebar Dr, Boise, ID was built in 1973, making it 53 years old. The building has 1 story.

What schools serve 4430 W Castlebar Dr, Boise, ID?

4430 W Castlebar Dr, Boise, ID is assigned to Collister Elementary School (elementary), rated A+; Hillside Junior High School (middle), rated C; Boise Senior High School (high), rated A-. All sit in Boise City Independent School District 1. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 4430 W Castlebar Dr, Boise, ID compare to other homes in Boise 83703?

Among the 6,475 homes in Boise 83703, it is worth more than 42% of them ($524,440 against a typical $565,199), its price per square foot is higher than 68% of them ($388 against a typical $361), it is bigger than 31% of them (1,350 ft² against a typical 1,660 ft²), its lot is bigger than 37% of them (0.17 ac against a typical 0.19 ac) and it is newer than 35% of them (1973 against a typical 1984). Measured against all of Ada County, it is worth more than 47% 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 4430 W Castlebar Dr, Boise, ID?

The 2025 property tax bill for 4430 W Castlebar Dr, Boise, ID was $2,514. The county assessed it at $441,800.

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