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Single Family ResidenceResidential
$8,140,060$1,990 / 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 71How 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 $260,000 on Aug 12, 1994

20871 BIG ROCK DR

MALIBU, CA 90265
3
Beds
4
Baths
4,090 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.
0.6 ac
Lot SizeThe size of the land the home sits on, from county records.
1998
Year BuiltThe year the home was originally built, according to county records.
10
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$8.1M
$5.8M low$10M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$260,000 · Aug 12, 1994

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$9,076 (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.$580,350 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$289,541
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$290,809
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$568,971

Climate Risk

Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.119 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%
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.possible but undetermined

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
StyleThe architectural style of the home, such as ranch or colonial.Conventional
CountyLOS ANGELES
Lot (acres)The size of the land the home sits on, from county records.0.60
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(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
Webster Elementary SchoolA+
Elementary · Grades KG–5 · 4.3 mi
M
Malibu Middle SchoolB+
Middle · Grades 6–8 · 11.7 mi
H
Malibu High SchoolA-
High · Grades 9–12 · 11.8 mi

District: Santa Monica-Malibu Unified School District

Neighborhood · ZIP 90265These 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.154
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.108
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.475

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.72%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.35%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.6.3%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.4%
PopulationHow many people live in this area.17,627
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.153 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$171,782
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$251,842
Average tempThe average temperature here across a full year.64°F
Annual precipHow much rain and melted snow falls here in a typical year.19 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

20871 Big Rock Dr 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.

  • Among the most valuable homes in Los Angeles County
  • Among the highest price per square foot in Los Angeles County
  • Bigger than 95% of homes in Big Rock
  • Has a bigger lot than 86% of homes in Los Angeles County
  • Newer than 94% of homes in Big Rock

What homes are worth in Malibu 90265

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

This home
$856K$10M

This home is worth more than 83% of homes in Malibu 90265.

How it measures up in Malibu 90265

The dot is this home. The mark in the middle is the typical home in Malibu 90265.

Estimated value$8,140,060
CheaperTypical $3,701,813Pricier

Pricier than 83% of homes nearby

Price per ft²$1990
CheaperTypical $1480Pricier

Pricier than 71% of homes nearby

Living area4,090 ft²
SmallerTypical 2,321 ft²Bigger

Bigger than 83% of homes nearby

Lot size0.6 ac
SmallerTypical 0.67 acBigger

Bigger than 47% of homes nearby

Year built1998
OlderTypical 1974Newer

Newer than 85% of homes nearby

How 20871 Big Rock Dr ranks against every home in each area.
MeasureThis homeBig RockMalibu 90265Los Angeles County
Estimated valuepricier than$8,140,06097% of homes83% of homesalmost all homes
Price per ft²pricier than$199074% of homes71% of homesalmost all homes
Living areabigger than4,090 ft²95% of homes83% of homes95% of homes
Lot sizebigger than0.6 ac70% of homes47% of homes86% of homes
Year builtnewer than199894% of homes85% of homes90% of homes

About 20871 Big Rock Dr

How much is 20871 Big Rock Dr, Malibu, CA worth?

The TopHap Estimate for 20871 Big Rock Dr, Malibu, CA is $8,140,060 as of Aug 30, 2026. The likely range is $5,767,363 to $9,999,999. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 20871 Big Rock Dr, Malibu, CA last sell?

20871 Big Rock Dr, Malibu, CA last sold on Aug 12, 1994 for $260,000, according to the county's recorded deed.

How big is 20871 Big Rock Dr, Malibu, CA?

20871 Big Rock Dr, Malibu, CA has 3 bedrooms, 4 bathrooms, 4,090 square feet of living space and a 0.60-acre lot.

When was 20871 Big Rock Dr, Malibu, CA built?

20871 Big Rock Dr, Malibu, CA was built in 1998, making it 28 years old. It is a conventional home.

What schools serve 20871 Big Rock Dr, Malibu, CA?

20871 Big Rock Dr, Malibu, CA is assigned to Webster Elementary School (elementary), rated A+; Malibu Middle School (middle), rated B+; Malibu High School (high), rated A-. All sit in Santa Monica-Malibu Unified School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 20871 Big Rock Dr, Malibu, CA compare to other homes in Malibu 90265?

Among the 7,696 homes in Malibu 90265, it is worth more than 83% of them ($8,140,060 against a typical $3,701,813), its price per square foot is higher than 71% of them ($1990 against a typical $1480), it is bigger than 83% of them (4,090 ft² against a typical 2,321 ft²), its lot is bigger than 47% of them (0.6 ac against a typical 0.67 ac) and it is newer than 85% of them (1998 against a typical 1974). Measured against all of Los Angeles County, it is worth more than almost all 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 20871 Big Rock Dr, Malibu, CA?

The 2025 property tax bill for 20871 Big Rock Dr, Malibu, CA was $9,076. The county assessed it at $580,350.

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