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Single Family ResidenceResidential
$2,473,088$1,112 / 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 86How 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

20520 BIG ROCK DR

MALIBU, CA 90265
3
Beds
3
Baths
2,224 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.
0.4 ac
Lot SizeThe size of the land the home sits on, from county records.
1952
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
10
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$2.5M
$2.1M low$2.8M high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,850 (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.$61,426 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$61,426
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$60,222

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.Contemporary
CountyLOS ANGELES
Effective Year BuiltAn adjusted build year that accounts for condition and major remodels. A big renovation can make a home count as newer than it is.1955
Lot (acres)The size of the land the home sits on, from county records.0.40
ConstructionThe main material the home's frame and walls are built from.Wood (Unspecified)
RoofThe main material covering the roof, such as asphalt shingle or tile.Rock / Gravel
HeatingThe type of heating system in the home.Central
FireplaceWhether the home has a fireplace, and what kind.Yes
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Attached
PoolWhether the property has a pool, and what kind, such as in-ground.No

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
Webster Elementary SchoolA+
Elementary · Grades KG–5 · 4.5 mi
M
Malibu Middle SchoolB+
Middle · Grades 6–8 · 11.9 mi
H
Malibu High SchoolA-
High · Grades 9–12 · 12.1 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

20520 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.

  • Worth more than 95% of homes in Los Angeles County
  • Costs more per square foot than 95% of homes in Los Angeles County
  • Bigger than 76% of homes in Los Angeles County
  • Has a bigger lot than 81% of homes in Los Angeles County
  • Older than 91% of homes in Malibu 90265

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
$862K$10M

This home is worth more than 28% 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$2,473,088
CheaperTypical $3,707,474Pricier

Pricier than 28% of homes nearby

Price per ft²$1112
CheaperTypical $1482Pricier

Pricier than 23% of homes nearby

Living area2,224 ft²
SmallerTypical 2,318 ft²Bigger

Bigger than 46% of homes nearby

Lot size0.4 ac
SmallerTypical 0.69 acBigger

Bigger than 38% of homes nearby

Year built1952
OlderTypical 1974Newer

Newer than 9% of homes nearby

How 20520 Big Rock Dr ranks against every home in each area.
MeasureThis homeBig RockMalibu 90265Los Angeles County
Estimated valuepricier than$2,473,08810% of homes28% of homes95% of homes
Price per ft²pricier than$111210% of homes23% of homes95% of homes
Living areabigger than2,224 ft²47% of homes46% of homes76% of homes
Lot sizebigger than0.4 ac58% of homes38% of homes81% of homes
Year builtnewer than195211% of homes9% of homes38% of homes

About 20520 Big Rock Dr

How much is 20520 Big Rock Dr, Malibu, CA worth?

The TopHap Estimate for 20520 Big Rock Dr, Malibu, CA is $2,473,088 as of Aug 30, 2026. The likely range is $2,124,282 to $2,821,894. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 20520 Big Rock Dr, Malibu, CA last sell?

20520 Big Rock Dr, Malibu, CA last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 20520 Big Rock Dr, Malibu, CA?

20520 Big Rock Dr, Malibu, CA has 3 bedrooms, 3 bathrooms, 2,224 square feet of living space and a 0.40-acre lot.

When was 20520 Big Rock Dr, Malibu, CA built?

20520 Big Rock Dr, Malibu, CA was built in 1952, making it 74 years old. It is a contemporary home. The building has 1 story.

What schools serve 20520 Big Rock Dr, Malibu, CA?

20520 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 20520 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 28% of them ($2,473,088 against a typical $3,707,474), its price per square foot is higher than 23% of them ($1112 against a typical $1482), it is bigger than 46% of them (2,224 ft² against a typical 2,318 ft²), its lot is bigger than 38% of them (0.4 ac against a typical 0.69 ac) and it is newer than 9% of them (1952 against a typical 1974). Measured against all of Los Angeles County, it is worth more than 95% 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 20520 Big Rock Dr, Malibu, CA?

The 2025 property tax bill for 20520 Big Rock Dr, Malibu, CA was $2,850. The county assessed it at $61,426.

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