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Single Family ResidenceResidential
$877,926$422 / 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 93How 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 $420,000 on Apr 9, 2021

4955 ALTA ST

SIMI VALLEY, CA 93063
5
Beds
3
Baths
2,082 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.
1971
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
8
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$878K
$820K low$936K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$420,000 · Apr 9, 2021

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$9,609 (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.$822,538 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$534,375
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$288,163
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$806,410

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.50
15
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
72
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
47
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
33
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
85
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.12 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.6%
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
CountyVENTURA
Lot (acres)The size of the land the home sits on, from county records.0.17
FireplaceWhether the home has a fireplace, and what kind.Yes
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 · 296 ft²Porch · 30 ft²

Transaction History(7)

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(1)

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

H
Simi Valley High SchoolB
High · Grades 9–12 · 0.8 mi
E
Santa Susana Elementary SchoolC-
Elementary · Grades KG–6 · 0.9 mi
M
Valley View Middle SchoolC-
Middle · Grades 6–8 · 1.1 mi

District: Simi Valley Unified School District

Neighborhood · ZIP 93063These 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.72
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 100.580

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.24%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.6.6%
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.54,519
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,079 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$111,983
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$147,478
Average tempThe average temperature here across a full year.63°F
Annual precipHow much rain and melted snow falls here in a typical year.18 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

4955 Alta 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.

  • Costs less per square foot than 83% of homes in Ventura County
  • Bigger than 75% of homes in Simi Valley 93063

What homes are worth in Simi Valley 93063

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

This home
$435K$1.5M

This home is worth more than 61% of homes in Simi Valley 93063.

How it measures up in Simi Valley 93063

The dot is this home. The mark in the middle is the typical home in Simi Valley 93063.

Estimated value$877,926
CheaperTypical $837,566Pricier

Pricier than 61% of homes nearby

Price per ft²$422
CheaperTypical $485Pricier

Pricier than 18% of homes nearby

Living area2,082 ft²
SmallerTypical 1,690 ft²Bigger

Bigger than 75% of homes nearby

Lot size0.17 ac
SmallerTypical 0.17 acBigger

Bigger than 45% of homes nearby

Year built1971
OlderTypical 1976Newer

Newer than 40% of homes nearby

How 4955 Alta St ranks against every home in each area.
MeasureThis homeSimi Valley 93063Ventura County
Estimated valuepricier than$877,92661% of homes53% of homes
Price per ft²pricier than$42218% of homes17% of homes
Living areabigger than2,082 ft²75% of homes70% of homes
Lot sizebigger than0.17 ac45% of homes52% of homes
Year builtnewer than197140% of homes39% of homes

About 4955 Alta St

How much is 4955 Alta St, Simi Valley, CA worth?

The TopHap Estimate for 4955 Alta St, Simi Valley, CA is $877,926 as of Aug 30, 2026. The likely range is $820,351 to $935,501. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 4955 Alta St, Simi Valley, CA last sell?

4955 Alta St, Simi Valley, CA last sold on Apr 9, 2021 for $420,000, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 4955 Alta St, Simi Valley, CA?

4955 Alta St, Simi Valley, CA has 5 bedrooms, 3 bathrooms, 2,082 square feet of living space and a 0.17-acre lot.

When was 4955 Alta St, Simi Valley, CA built?

4955 Alta St, Simi Valley, CA was built in 1971, making it 55 years old. The building has 1 story.

What schools serve 4955 Alta St, Simi Valley, CA?

4955 Alta St, Simi Valley, CA is assigned to Simi Valley High School (high), rated B; Santa Susana Elementary School (elementary), rated C-; Valley View Middle School (middle), rated C-. All sit in Simi Valley Unified School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 4955 Alta St, Simi Valley, CA compare to other homes in Simi Valley 93063?

Among the 17,119 homes in Simi Valley 93063, it is worth more than 61% of them ($877,926 against a typical $837,566), its price per square foot is higher than 18% of them ($422 against a typical $485), it is bigger than 75% of them (2,082 ft² against a typical 1,690 ft²), its lot is bigger than 45% of them (0.17 ac against a typical 0.17 ac) and it is newer than 40% of them (1971 against a typical 1976). Measured against all of Ventura County, it is worth more than 53% 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 4955 Alta St, Simi Valley, CA?

The 2025 property tax bill for 4955 Alta St, Simi Valley, CA was $9,609. The county assessed it at $822,538.

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