Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$903,055$406 / 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 80How 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

170 THOMPSON AVE

CHATSWORTH, CA 91311
2
Beds
3
Baths
2,223 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.
0.19 ac
Lot SizeThe size of the land the home sits on, from county records.
1988
Year BuiltThe year the home was originally built, according to county records.
3
StoriesHow many floors the home has above ground.
5
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$903K
$719K low$1.1M high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,848 (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.$358,162 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$81,540
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$276,622
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$351,140

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.
85
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.Single Family Residence
CountyVENTURA
Lot (acres)The size of the land the home sits on, from county records.0.19
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.Deck · 829 ft²Patio · 1,658 ft²Porch · 40 ft²

Transaction History(2)

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
Knolls Elementary SchoolC-
Elementary · Grades KG–6 · 2.4 mi
H
Simi Valley High SchoolB
High · Grades 9–12 · 3.8 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%

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

170 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.

  • Costs less per square foot than 85% of homes in Ventura County
  • Bigger than 75% of homes in Ventura County
  • Has a smaller lot than 69% of homes in Chatsworth 91311
  • Newer than 87% of homes in Chatsworth 91311

What homes are worth in Chatsworth 91311

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

This home
$461K$2.6M

This home is worth more than 54% 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.

Estimated value$903,055
CheaperTypical $881,495Pricier

Pricier than 54% of homes nearby

Price per ft²$406
CheaperTypical $458Pricier

Pricier than 25% of homes nearby

Living area2,223 ft²
SmallerTypical 1,875 ft²Bigger

Bigger than 66% of homes nearby

Lot size0.19 ac
SmallerTypical 0.28 acBigger

Bigger than 31% of homes nearby

Year built1988
OlderTypical 1974Newer

Newer than 87% of homes nearby

How 170 Thompson Ave ranks against every home in each area.
MeasureThis homeChatsworth 91311Ventura County
Estimated valuepricier than$903,05554% of homes58% of homes
Price per ft²pricier than$40625% of homes15% of homes
Living areabigger than2,223 ft²66% of homes75% of homes
Lot sizebigger than0.19 ac31% of homes65% of homes
Year builtnewer than198887% of homes73% of homes

About 170 Thompson Ave

How much is 170 Thompson Ave, Chatsworth, CA worth?

The TopHap Estimate for 170 Thompson Ave, Chatsworth, CA is $903,055 as of Aug 30, 2026. The likely range is $718,561 to $1,087,549. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 170 Thompson Ave, Chatsworth, CA last sell?

170 Thompson Ave, Chatsworth, CA last sold on Jan 1, 1900, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 170 Thompson Ave, Chatsworth, CA?

170 Thompson Ave, Chatsworth, CA has 2 bedrooms, 3 bathrooms, 2,223 square feet of living space and a 0.19-acre lot.

When was 170 Thompson Ave, Chatsworth, CA built?

170 Thompson Ave, Chatsworth, CA was built in 1988, making it 38 years old. The building has 3 stories.

What schools serve 170 Thompson Ave, Chatsworth, CA?

170 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 170 Thompson Ave, Chatsworth, CA compare to other homes in Chatsworth 91311?

Among the 11,363 homes in Chatsworth 91311, it is worth more than 54% of them ($903,055 against a typical $881,495), its price per square foot is higher than 25% of them ($406 against a typical $458), it is bigger than 66% of them (2,223 ft² against a typical 1,875 ft²), its lot is bigger than 31% of them (0.19 ac against a typical 0.28 ac) and it is newer than 87% of them (1988 against a typical 1974). Measured against all of Ventura County, it is worth more than 58% 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 170 Thompson Ave, Chatsworth, CA?

The 2025 property tax bill for 170 Thompson Ave, Chatsworth, CA was $3,848. The county assessed it at $358,162.

More homes on Thompson Ave

Closest homes

More homes in Chatsworth 91311

Assigned schools

Explore the area

See this home in context

Open 170 Thompson Ave 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