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Multi-Family Dwellings (Generic, Any Combination)Residential
Last sold for $235,000 on Aug 11, 2010

9451 THOMPSON AVE

CHATSWORTH, CA 91311
0
Baths
1,248 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.
3,500 ft²
Lot SizeThe size of the land the home sits on, from county records.
1950
Year BuiltThe year the home was originally built, according to county records.

Valuation

Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$235,000 · Aug 11, 2010

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,539 (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.$227,366 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$109,764
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$117,602
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$222,908

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.49
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
84
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.
34
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
80
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.Multi-Family Dwellings (Generic, Any Combination)
CountyVENTURA
Lot (acres)The size of the land the home sits on, from county records.0.08
PoolWhether the property has a pool, and what kind, such as in-ground.No

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(4)

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

E
Knolls Elementary SchoolC-
Elementary · Grades KG–6 · 2.4 mi
H
Simi Valley High SchoolB
High · Grades 9–12 · 3.7 mi
M
Valley View Middle SchoolC-
Middle · Grades 6–8 · 5.7 mi

District: Simi Valley Unified School District

Neighborhood · ZIP 91311These 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.71
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.110
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.542

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.97%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.29%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.6.2%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.8%
PopulationHow many people live in this area.39,425
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,548 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$107,306
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$137,663
Average tempThe average temperature here across a full year.63°F
Annual precipHow much rain and melted snow falls here in a typical year.20 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

9451 Thompson Ave 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.

  • Smaller than 88% of homes in Chatsworth 91311
  • Among the smallest lots in Chatsworth 91311
  • Older than 96% of homes in Chatsworth 91311

How it measures up in Chatsworth 91311

The dot is this home. The mark in the middle is the typical home in Chatsworth 91311.

Living area1,248 ft²
SmallerTypical 1,878 ft²Bigger

Bigger than 12% of homes nearby

Lot size3,500 ft²
SmallerTypical 0.27 acBigger

Smaller than almost all homes nearby

Year built1950
OlderTypical 1974Newer

Newer than 4% of homes nearby

How 9451 Thompson Ave ranks against every home in each area.
MeasureThis homeChatsworth 91311Ventura County
Living areabigger than1,248 ft²12% of homes23% of homes
Lot sizebigger than3,500 ft²almost no homes14% of homes
Year builtnewer than19504% of homes6% of homes

About 9451 Thompson Ave

When did 9451 Thompson Ave, Chatsworth, CA last sell?

9451 Thompson Ave, Chatsworth, CA last sold on Aug 11, 2010 for $235,000, according to the county's recorded deed. TopHap holds 5 recorded sales for this parcel.

How big is 9451 Thompson Ave, Chatsworth, CA?

9451 Thompson Ave, Chatsworth, CA has 1,248 square feet of living space and a 0.08-acre lot.

When was 9451 Thompson Ave, Chatsworth, CA built?

9451 Thompson Ave, Chatsworth, CA was built in 1950, making it 76 years old.

What schools serve 9451 Thompson Ave, Chatsworth, CA?

9451 Thompson Ave, Chatsworth, CA is assigned to Knolls Elementary School (elementary), rated C-; Simi Valley High School (high), rated B; 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 9451 Thompson Ave, Chatsworth, CA compare to other homes in Chatsworth 91311?

Among the 11,363 homes in Chatsworth 91311, it is bigger than 12% of them (1,248 ft² against a typical 1,878 ft²), its lot is bigger than almost none of them (3,500 ft² against a typical 0.27 ac) and it is newer than 4% of them (1950 against a typical 1974). These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 9451 Thompson Ave, Chatsworth, CA?

The 2025 property tax bill for 9451 Thompson Ave, Chatsworth, CA was $2,539. The county assessed it at $227,366.

More homes on Thompson Ave

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