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CondominiumResidential
$557,404$447 / 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 98How 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 $126,000 on Oct 19, 1999

21901 DUPONT ST

CHATSWORTH, CA 91311
Building report
2
Beds
3
Baths
1,247 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.
2.22 ac
Lot SizeThe size of the land the home sits on, from county records.
1980
Year BuiltThe year the home was originally built, according to county records.

Valuation

$557K
$547K low$567K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$126,000 · Oct 19, 1999

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,836 (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.$224,001 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$67,240
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$156,761
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$219,610

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Condominium
StyleThe architectural style of the home, such as ranch or colonial.Condo/Apartment
CountyLOS ANGELES
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
Chatsworth Park Elementary SchoolB+
Elementary · Grades KG–5 · 0.3 mi
M
Ernest Lawrence Middle SchoolB
Middle · Grades 6–8 · 0.7 mi
H
Chatsworth Charter High SchoolC
High · Grades 9–12 · 1.2 mi

District: Los Angeles Unified School District

Neighborhood · ZIP 91311These 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.71
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.110
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.542

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.97%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.29%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.6.2%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.8%
PopulationHow many people live in this area.39,425
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,548 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$107,306
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$137,663
Average tempThe average temperature here across a full year.63°F
Annual precipHow much rain and melted snow falls here in a typical year.20 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

21901 Dupont 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 less than 94% of homes in Chatsworth
  • Costs less per square foot than 81% of homes in Los Angeles County
  • Smaller than 91% of homes in Chatsworth
  • Has a bigger lot than 95% of homes in Los Angeles County
  • Newer than 76% of homes in Chatsworth 91311

What homes are worth in Chatsworth 91311

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

This home
$450K$2.6M

This home is worth more than 8% of homes in Chatsworth 91311.

How it measures up in Chatsworth 91311

The dot is this home. The mark in the middle is the typical home in Chatsworth 91311.

Estimated value$557,404
CheaperTypical $915,858Pricier

Pricier than 8% of homes nearby

Price per ft²$447
CheaperTypical $469Pricier

Pricier than 39% of homes nearby

Living area1,247 ft²
SmallerTypical 1,871 ft²Bigger

Bigger than 12% of homes nearby

Lot size2.22 ac
SmallerTypical 0.27 acBigger

Bigger than 83% of homes nearby

Year built1980
OlderTypical 1974Newer

Newer than 76% of homes nearby

How 21901 Dupont St ranks against every home in each area.
MeasureThis homeChatsworthChatsworth 91311Los Angeles County
Estimated valuepricier than$557,4046% of homes8% of homes14% of homes
Price per ft²pricier than$44733% of homes39% of homes19% of homes
Living areabigger than1,247 ft²9% of homes12% of homes27% of homes
Lot sizebigger than2.22 ac85% of homes83% of homes95% of homes
Year builtnewer than198062% of homes76% of homes76% of homes

About 21901 Dupont St

How much is 21901 Dupont St, Chatsworth, CA worth?

The TopHap Estimate for 21901 Dupont St, Chatsworth, CA is $557,404 as of Sep 24, 2026. The likely range is $547,364 to $567,444. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21901 Dupont St, Chatsworth, CA last sell?

21901 Dupont St, Chatsworth, CA last sold on Oct 19, 1999 for $126,000, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 21901 Dupont St, Chatsworth, CA?

21901 Dupont St, Chatsworth, CA has 2 bedrooms, 3 bathrooms and 1,247 square feet of living space.

When was 21901 Dupont St, Chatsworth, CA built?

21901 Dupont St, Chatsworth, CA was built in 1980, making it 46 years old. It is a condo/apartment home.

What schools serve 21901 Dupont St, Chatsworth, CA?

21901 Dupont St, Chatsworth, CA is assigned to Chatsworth Park Elementary School (elementary), rated B+; Ernest Lawrence Middle School (middle), rated B; Chatsworth Charter High School (high), rated C. All sit in Los Angeles Unified School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21901 Dupont St, Chatsworth, CA compare to other homes in Chatsworth 91311?

Among the 11,363 homes in Chatsworth 91311, it is worth more than 8% of them ($557,404 against a typical $915,858), its price per square foot is higher than 39% of them ($447 against a typical $469), it is bigger than 12% of them (1,247 ft² against a typical 1,871 ft²), its lot is bigger than 83% of them (2.22 ac against a typical 0.27 ac) and it is newer than 76% of them (1980 against a typical 1974). Measured against all of Los Angeles County, it is worth more than 14% 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 21901 Dupont St, Chatsworth, CA?

The 2025 property tax bill for 21901 Dupont St, Chatsworth, CA was $2,836. The county assessed it at $224,001.

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