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Single Family ResidenceResidential
$889,328$519 / 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 94How 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 $511,000 on Jul 13, 2009

1644 1ST ST

DUARTE, CA 91010
4
Beds
2
Baths
1,715 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.
0.16 ac
Lot SizeThe size of the land the home sits on, from county records.
1950
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

$889K
$832K low$947K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$511,000 · Jul 13, 2009

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$8,928 (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.$672,785 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$505,580
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$167,205
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$659,594

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.1968
Lot (acres)The size of the land the home sits on, from county records.0.16
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
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(7)

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.

H
Duarte High SchoolB
High · Grades 9–12 · 0.4 mi
E
Royal Oaks STEAM AcademyB
Elementary · Grades KG–8 · 1.0 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

1644 1st 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 81% of homes in Duarte 91010
  • Costs less per square foot than 65% of homes in Duarte 91010
  • Bigger than 80% of homes in Duarte 91010
  • Older than 66% 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
$461K$1.2M

This home is worth more than 81% 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$889,328
CheaperTypical $728,519Pricier

Pricier than 81% of homes nearby

Price per ft²$519
CheaperTypical $556Pricier

Pricier than 35% of homes nearby

Living area1,715 ft²
SmallerTypical 1,330 ft²Bigger

Bigger than 80% of homes nearby

Lot size0.16 ac
SmallerTypical 0.15 acBigger

Bigger than 60% of homes nearby

Year built1950
OlderTypical 1956Newer

Newer than 36% of homes nearby

How 1644 1st St ranks against every home in each area.
MeasureThis homeDuarte 91010Los Angeles County
Estimated valuepricier than$889,32881% of homes55% of homes
Price per ft²pricier than$51935% of homes36% of homes
Living areabigger than1,715 ft²80% of homes58% of homes
Lot sizebigger than0.16 ac60% of homes47% of homes
Year builtnewer than195036% of homes34% of homes

About 1644 1st St

How much is 1644 1st St, Duarte, CA worth?

The TopHap Estimate for 1644 1st St, Duarte, CA is $889,328 as of Sep 24, 2026. The likely range is $831,722 to $946,934. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 1644 1st St, Duarte, CA last sell?

1644 1st St, Duarte, CA last sold on Jul 13, 2009 for $511,000, according to the county's recorded deed. TopHap holds 4 recorded sales for this parcel.

How big is 1644 1st St, Duarte, CA?

1644 1st St, Duarte, CA has 4 bedrooms, 2 bathrooms, 1,715 square feet of living space and a 0.16-acre lot.

When was 1644 1st St, Duarte, CA built?

1644 1st St, Duarte, CA was built in 1950, making it 76 years old. It is a conventional home. The building has 1 story.

What schools serve 1644 1st St, Duarte, CA?

1644 1st St, Duarte, CA is assigned to Duarte High School (high), rated B; Royal Oaks STEAM Academy (elementary), rated B. All sit in Duarte Unified School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 1644 1st St, Duarte, CA compare to other homes in Duarte 91010?

Among the 6,612 homes in Duarte 91010, it is worth more than 81% of them ($889,328 against a typical $728,519), its price per square foot is higher than 35% of them ($519 against a typical $556), it is bigger than 80% of them (1,715 ft² against a typical 1,330 ft²), its lot is bigger than 60% of them (0.16 ac against a typical 0.15 ac) and it is newer than 36% of them (1950 against a typical 1956). Measured against all of Los Angeles County, it is worth more than 55% 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 1644 1st St, Duarte, CA?

The 2025 property tax bill for 1644 1st St, Duarte, CA was $8,928. The county assessed it at $672,785.

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