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Single Family ResidenceResidential
$1,137,794$483 / 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 91How 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 $288,500 on Mar 7, 1996

1817 ROCK SPRING ST

THOUSAND OAKS, CA 91320
4
Beds
3
Baths
2,355 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.
0.12 ac
Lot SizeThe size of the land the home sits on, from county records.
1996
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
9
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

$1.1M
$1M low$1.2M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$288,500 · Mar 7, 1996

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$5,807 (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.$488,356 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$195,337
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$293,019
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$478,781

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.44
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
69
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
36
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
29
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.
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.0.13
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.Porch · 42 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
Madrona Elementary SchoolA-
Elementary · Grades KG–5 · 1.5 mi
M
Sequoia Middle SchoolC+
Middle · Grades 6–8 · 1.6 mi
H
Newbury Park High SchoolA
High · Grades 9–12 · 2.1 mi

District: Conejo Valley Unified School District

Neighborhood · ZIP 91320These 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.60
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.105
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.367

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.32%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.5.8%
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.44,115
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,237 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$138,537
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$168,849
Average tempThe average temperature here across a full year.63°F
Annual precipHow much rain and melted snow falls here in a typical year.16 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.73%

Owner Tools

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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

1817 Rock Spring 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.

  • Worth more than 77% of homes in Ventura County
  • Bigger than 78% of homes in Ventura County
  • Has a smaller lot than 88% of homes in Newbury Park 91320
  • Newer than 82% of homes in Ventura County

What homes are worth in Newbury Park 91320

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

This home
$402K$2.2M

This home is worth more than 70% of homes in Newbury Park 91320.

How it measures up in Newbury Park 91320

The dot is this home. The mark in the middle is the typical home in Newbury Park 91320.

Estimated value$1,137,794
CheaperTypical $951,935Pricier

Pricier than 70% of homes nearby

Price per ft²$483
CheaperTypical $491Pricier

Pricier than 45% of homes nearby

Living area2,355 ft²
SmallerTypical 1,933 ft²Bigger

Bigger than 70% of homes nearby

Lot size0.12 ac
SmallerTypical 0.19 acBigger

Bigger than 12% of homes nearby

Year built1996
OlderTypical 1979Newer

Newer than 72% of homes nearby

How 1817 Rock Spring St ranks against every home in each area.
MeasureThis homeNewbury Park 91320Ventura County
Estimated valuepricier than$1,137,79470% of homes77% of homes
Price per ft²pricier than$48345% of homes44% of homes
Living areabigger than2,355 ft²70% of homes78% of homes
Lot sizebigger than0.12 ac12% of homes25% of homes
Year builtnewer than199672% of homes82% of homes

About 1817 Rock Spring St

How much is 1817 Rock Spring St, Thousand Oaks, CA worth?

The TopHap Estimate for 1817 Rock Spring St, Thousand Oaks, CA is $1,137,794 as of Sep 24, 2026. The likely range is $1,039,596 to $1,235,992. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 1817 Rock Spring St, Thousand Oaks, CA last sell?

1817 Rock Spring St, Thousand Oaks, CA last sold on Mar 7, 1996 for $288,500, according to the county's recorded deed.

How big is 1817 Rock Spring St, Thousand Oaks, CA?

1817 Rock Spring St, Thousand Oaks, CA has 4 bedrooms, 3 bathrooms, 2,355 square feet of living space and a 0.13-acre lot.

When was 1817 Rock Spring St, Thousand Oaks, CA built?

1817 Rock Spring St, Thousand Oaks, CA was built in 1996, making it 30 years old. The building has 2 stories.

What schools serve 1817 Rock Spring St, Thousand Oaks, CA?

1817 Rock Spring St, Thousand Oaks, CA is assigned to Madrona Elementary School (elementary), rated A-; Sequoia Middle School (middle), rated C+; Newbury Park High School (high), rated A. All sit in Conejo Valley Unified School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 1817 Rock Spring St, Thousand Oaks, CA compare to other homes in Newbury Park 91320?

Among the 14,281 homes in Newbury Park 91320, it is worth more than 70% of them ($1,137,794 against a typical $951,935), its price per square foot is higher than 45% of them ($483 against a typical $491), it is bigger than 70% of them (2,355 ft² against a typical 1,933 ft²), its lot is bigger than 12% of them (0.12 ac against a typical 0.19 ac) and it is newer than 72% of them (1996 against a typical 1979). Measured against all of Ventura County, it is worth more than 77% 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 1817 Rock Spring St, Thousand Oaks, CA?

The 2025 property tax bill for 1817 Rock Spring St, Thousand Oaks, CA was $5,807. The county assessed it at $488,356.

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