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Single Family ResidenceResidential
$830,228$438 / 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 92How 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 $509,000 on Apr 17, 2015

839 MOUNT OLIVE DR

DUARTE, CA 91010
6
Beds
2
Baths
1,897 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.
0.15 ac
Lot SizeThe size of the land the home sits on, from county records.
1955
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
6
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$830K
$760K low$901K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$509,000 · Apr 17, 2015

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$8,614 (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.$623,965 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$355,258
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$268,707
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$611,732

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.5 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.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
StyleThe architectural style of the home, such as ranch or colonial.Conventional
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.1972
Lot (acres)The size of the land the home sits on, from county records.0.14
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.Composition Shingle
HeatingThe type of heating system in the home.Floor/Wall Furnace
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(4)

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
Royal Oaks STEAM AcademyC
Elementary · Grades KG–8 · 0.3 mi
H
Duarte High SchoolB+
High · Grades 9–12 · 0.9 mi

District: Duarte Unified School District

Neighborhood · ZIP 91010These 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.62
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.103
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.682

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.96%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.22%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.7.7%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.6%
PopulationHow many people live in this area.26,725
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,885 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$91,243
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$111,021
Average tempThe average temperature here across a full year.63°F
Annual precipHow much rain and melted snow falls here in a typical year.25 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

839 Mount Olive 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 75% of homes in Duarte 91010
  • Costs less per square foot than 82% of homes in Duarte 91010
  • Bigger than 89% of homes in Duarte 91010
  • Has a smaller lot than 65% of homes in Los Angeles County

What homes are worth in Duarte 91010

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

This home
$454K$1.2M

This home is worth more than 75% of homes in Duarte 91010.

How it measures up in Duarte 91010

The dot is this home. The mark in the middle is the typical home in Duarte 91010.

Estimated value$830,228
CheaperTypical $702,217Pricier

Pricier than 75% of homes nearby

Price per ft²$438
CheaperTypical $546Pricier

Pricier than 18% of homes nearby

Living area1,897 ft²
SmallerTypical 1,321 ft²Bigger

Bigger than 89% of homes nearby

Lot size0.15 ac
SmallerTypical 0.15 acBigger

Bigger than 40% of homes nearby

Year built1955
OlderTypical 1956Newer

Newer than 49% of homes nearby

How 839 Mount Olive Dr ranks against every home in each area.
MeasureThis homeDuarte 91010Los Angeles County
Estimated valuepricier than$830,22875% of homes51% of homes
Price per ft²pricier than$43818% of homes21% of homes
Living areabigger than1,897 ft²89% of homes66% of homes
Lot sizebigger than0.15 ac40% of homes35% of homes
Year builtnewer than195549% of homes47% of homes

About 839 Mount Olive Dr

How much is 839 Mount Olive Dr, Duarte, CA worth?

The TopHap Estimate for 839 Mount Olive Dr, Duarte, CA is $830,228 as of Aug 30, 2026. The likely range is $759,763 to $900,693. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 839 Mount Olive Dr, Duarte, CA last sell?

839 Mount Olive Dr, Duarte, CA last sold on Apr 17, 2015 for $509,000, according to the county's recorded deed. TopHap holds 4 recorded sales for this parcel.

How big is 839 Mount Olive Dr, Duarte, CA?

839 Mount Olive Dr, Duarte, CA has 6 bedrooms, 2 bathrooms, 1,897 square feet of living space and a 0.14-acre lot.

When was 839 Mount Olive Dr, Duarte, CA built?

839 Mount Olive Dr, Duarte, CA was built in 1955, making it 71 years old. It is a conventional home. The building has 1 story.

What schools serve 839 Mount Olive Dr, Duarte, CA?

839 Mount Olive Dr, Duarte, CA is assigned to Royal Oaks STEAM Academy (elementary), rated C; Duarte High School (high), rated B+. All sit in Duarte Unified School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 839 Mount Olive Dr, Duarte, CA compare to other homes in Duarte 91010?

Among the 6,612 homes in Duarte 91010, it is worth more than 75% of them ($830,228 against a typical $702,217), its price per square foot is higher than 18% of them ($438 against a typical $546), it is bigger than 89% of them (1,897 ft² against a typical 1,321 ft²), its lot is bigger than 40% of them (0.15 ac against a typical 0.15 ac) and it is newer than 49% of them (1955 against a typical 1956). Measured against all of Los Angeles County, it is worth more than 51% 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 839 Mount Olive Dr, Duarte, CA?

The 2025 property tax bill for 839 Mount Olive Dr, Duarte, CA was $8,614. The county assessed it at $623,965.

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