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Single Family ResidenceResidential
$953,055$424 / 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 Aug 30, 2026
Last sold for $950,000 on Jan 27, 2025

28331 ALTON WAY

CASTAIC, CA 91384
3
Beds
3
Baths
2,247 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.
0.16 ac
Lot SizeThe size of the land the home sits on, from county records.
2003
Year BuiltThe year the home was originally built, according to county records.

Valuation

$953K
$905K low$1M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$950,000 · Jan 27, 2025

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$9,256 (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.$969,000 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$678,300
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$290,700
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$685,899

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyLOS ANGELES
Lot (acres)The size of the land the home sits on, from county records.0.16
ConstructionThe main material the home's frame and walls are built from.Wood (Unspecified)
HeatingThe type of heating system in the home.Central
CoolingThe type of cooling or air conditioning in the home.Central
PoolWhether the property has a pool, and what kind, such as in-ground.Yes

Transaction History(15)

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
Live Oak Elementary SchoolB+
Elementary · Grades KG–6 · 0.6 mi
M
Castaic Middle SchoolB+
Middle · Grades 7–8 · 1.3 mi
H
Valencia High SchoolA+
High · Grades 9–12 · 3.9 mi

District: William S. Hart Union High School District (9-12)

Neighborhood · ZIP 91384These 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.30
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.100
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.435

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.98%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.23%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.3.2%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.5%
PopulationHow many people live in this area.23,962
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.135 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$127,173
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$148,137
Average tempThe average temperature here across a full year.61°F
Annual precipHow much rain and melted snow falls here in a typical year.21 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.73%

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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

28331 Alton Way 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 86% of homes in Castaic 91384
  • Costs less per square foot than 82% of homes in Los Angeles County
  • Bigger than 77% of homes in Los Angeles County
  • Newer than 93% of homes in Castaic 91384

What homes are worth in Castaic 91384

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

This home
$435K$1.6M

This home is worth more than 86% of homes in Castaic 91384.

How it measures up in Castaic 91384

The dot is this home. The mark in the middle is the typical home in Castaic 91384.

Estimated value$953,055
CheaperTypical $792,240Pricier

Pricier than 86% of homes nearby

Price per ft²$424
CheaperTypical $396Pricier

Pricier than 61% of homes nearby

Living area2,247 ft²
SmallerTypical 1,861 ft²Bigger

Bigger than 68% of homes nearby

Lot size0.16 ac
SmallerTypical 0.17 acBigger

Bigger than 44% of homes nearby

Year built2003
OlderTypical 1993Newer

Newer than 93% of homes nearby

How 28331 Alton Way ranks against every home in each area.
MeasureThis homeCastaic 91384Los Angeles County
Estimated valuepricier than$953,05586% of homes62% of homes
Price per ft²pricier than$42461% of homes18% of homes
Living areabigger than2,247 ft²68% of homes77% of homes
Lot sizebigger than0.16 ac44% of homes44% of homes
Year builtnewer than200393% of homes92% of homes

About 28331 Alton Way

How much is 28331 Alton Way, Castaic, CA worth?

The TopHap Estimate for 28331 Alton Way, Castaic, CA is $953,055 as of Aug 30, 2026. The likely range is $904,859 to $1,001,251. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 28331 Alton Way, Castaic, CA last sell?

28331 Alton Way, Castaic, CA last sold on Jan 27, 2025 for $950,000, according to the county's recorded deed. TopHap holds 9 recorded sales for this parcel.

How big is 28331 Alton Way, Castaic, CA?

28331 Alton Way, Castaic, CA has 3 bedrooms, 3 bathrooms, 2,247 square feet of living space and a 0.16-acre lot.

When was 28331 Alton Way, Castaic, CA built?

28331 Alton Way, Castaic, CA was built in 2003, making it 23 years old.

What schools serve 28331 Alton Way, Castaic, CA?

28331 Alton Way, Castaic, CA is assigned to Live Oak Elementary School (elementary), rated B+; Castaic Middle School (middle), rated B+; Valencia High School (high), rated A+. All sit in William S. Hart Union High School District (9-12). Attendance boundaries change — confirm with the district before relying on an assignment.

How does 28331 Alton Way, Castaic, CA compare to other homes in Castaic 91384?

Among the 6,790 homes in Castaic 91384, it is worth more than 86% of them ($953,055 against a typical $792,240), its price per square foot is higher than 61% of them ($424 against a typical $396), it is bigger than 68% of them (2,247 ft² against a typical 1,861 ft²), its lot is bigger than 44% of them (0.16 ac against a typical 0.17 ac) and it is newer than 93% of them (2003 against a typical 1993). Measured against all of Los Angeles County, it is worth more than 62% 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 28331 Alton Way, Castaic, CA?

The 2025 property tax bill for 28331 Alton Way, Castaic, CA was $9,256. The county assessed it at $969,000.

More homes on Alton Way

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